HT sub project #2
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4969 Registered: Jun-06 | Well technically my third but I don't count my first one. That baby sleeps with the fishes. 9.5 cu's tuned to 28hz. 18" FI Q sub powered by a 1000w Dayton plate amp. This baby took me about 9 man hours over the weekend to make and my shop is a complete disaster but I think it was worth it. Meet the Q.  Precut all my pieces.  Main box done.  Working on rails for the plexi insert.  Inside the box  Painting the inside white. Yes, white paint. More on that in a minute.  Finished painting the inside and installed the neon, hence the reason for white paint.  More painting.  Dry fitting amp and sub.  Getting ready to dismantle the Mag setup. **Crying inside**  Comparing the Q and the Mag. She looks nice, doesn't she James?? I like her azz end.   Started carpeting.  Carpet and ports done.  Beginning work on the plexi window. 1/2" thick. This piece alone was over $30.  Plexi enclosure sealed and tight.  Installing the Q from underneath.  Installed the amp and neon switch in the rear.  Install complete. I had to chose a different location from where the Mag was. It's just too d@mn big.  Tried out the neon lighting. I think the Q looks awesome in there!  Overall I am very impressed with the sq she has. I had to tweak the amp's settings. Different sub, different settings. Wow! The Mag hit deep and hard, something I didn't lose with the Q. What I gained was freq response down to the 28hz tuning. Overall I'm happy as h@ll and the bass gods have shined thier light on me once again. I don't discourage anyone from using a top end car audio driver for your HT needs. Now, just what will AA have for me this summer?  |
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Platinum Member Username: BestmankindLos Angeles, CA USA Post Number: 11521 Registered: Oct-05 | looking good paul. very nice. i like the lights. |
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Platinum Member Username: Project6Post Number: 13558 Registered: Dec-03 | Mad skills, Paul! Awesome stuff! Home use? |
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Gold Member Username: Nyyfan13Fi SSD USA Post Number: 4462 Registered: Jul-06 | that looks incredible paul...great work |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4974 Registered: Jun-06 | Thanks guys. Yeah it's my latest addition to HT. I really don't know where I go with my next one. She sounds so shaweeeet! |
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Gold Member Username: 54danny54KY More Wang Th... Post Number: 3712 Registered: Nov-04 | wow man that is SICK!! im stealing ur idea or a new box |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4975 Registered: Jun-06 | Yeah I keep staring at it, with that weird feeling down below. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4976 Registered: Jun-06 | Here's a little better pic. D@mn Ecoustics and thier file size limitations. [IMG]http://i162.photobucket.com/albums/t259/wingmanalive/Betterpic.jpg[/IMG] |
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Gold Member Username: James1115Use a simple... Post Number: 9745 Registered: Dec-04 | very very nice bud is that my mag in the background |
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Gold Member Username: John_sColumbus, Ohio US Post Number: 1448 Registered: Feb-04 | "Yeah I keep staring at it, with that weird feeling down below." That 12 legged monster will come alive, bust through that window and gitcha....  ATTACK OF THE KILLER Q! starring the late Paul L. Nice shop man. |
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Platinum Member Username: RovinMy 1 12 Atom... Post Number: 11037 Registered: Jul-05 | man thas alot of work but good job buddy ..... |
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Platinum Member Username: BestmankindLos Angeles, CA USA Post Number: 11525 Registered: Oct-05 | how about a vid paul. lets see that thing in action. |
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Gold Member Username: Livin_loudNo HTML in h... Post Number: 1449 Registered: Jan-06 | ^^^ x2 great job paul. wish i had something like that... how does the Q compare to the mag? what are you doin with the mag? lol |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4980 Registered: Jun-06 | James, yes that's your Mag. It's as clean as a whistle. I'll be sorry to let her go. Kinda like my camaro. Thanks guys. I'll soak this one up for awhile till I get plans for my next beast.  As far as a vid, well my son's asleep now so........... At 25% volume the dvd's were falling off the self just above it. |
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Platinum Member Username: Chaunb3400Huntsville, Alabama U.S. Post Number: 11945 Registered: Jul-05 | Bad A.s.s system please tell us..how the Q and Mag compares?? |
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Platinum Member Username: Project6Post Number: 13562 Registered: Dec-03 | What amp are you using to drive that? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4990 Registered: Jun-06 | Berny, the same Dayton plate amp I was using for the Mag. Both subs recommend about the same power. Ok. How does the Mag compare to a Q? First off let me say I loved the Mag. A very tight hitting 15 that is capable of much more than I ever demanded out of it. (My house wouldn't forgive me) The Q obviously hits lower and I would say ALMOST just as hard as the Mag. The difference is negligible. Probably completely unoticable to most. Sq? This one is tough. My results are based on a home application so room accoustics plays a big part here. If you were sitting right in front of either sub in a car you should be quite impressed. I had to locate the Q setup to a completely different side of my gameroom. In car audio most say install is everything. Well in HT, sub placement is just as important. How either sub would sound in both spots could be an infinite debate. Looks? The Mag wins this one. I'm happy with either but the Mag's azz won me over. Yeah I'm a pushover. Price? Hands down the Q runs away with this one. An 18" vs a 15" for $200 less? No brainer after comparing the two. Bottom line? Taking the fact that both hit hard with the edge given to the Mag, with VERY similar sq, and the cost factor, I would give the ribbon to the Q. You just get more for your $$. The Mag holds its' own and then some without complaints. It's also a d@mn fine looking sub with a well earned rep. The $500 price tag however will keep it out of many ppl's hands. Sad really. Final note: Now I'm the first kid on the block with a Q powered HT sub! |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2025 Registered: Dec-06 | I'm still going with 4 Q's for the IB. Maybe you should try an IB Paul? I'm not pressuring you. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4992 Registered: Jun-06 | Imma stick with this for now. An IB affects the resale value and I might not be here that long. If I need more bass than this in my home I need proffesional help. |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2029 Registered: Dec-06 | Haha alright. If you do go any further.. for extension purposes I mean.. maybe I see multiple drivers and a dedicated EQ in the future? Maybe you could try mimicking the design of the ML Descent? http://www.us.martinlogan.com/speaker_intro/descent_i.html It uses 3 10s to get the surface area of a single 18. Maybe 3 18s could create the surface area of a 30" driver? http://www.tcsounds.com/lms5400.htm I see the price is down, but so is the stock. I typed a bunch more paragraphs, but they were meaningless, so I erased them all. One was about an amp to power it. I don't think you really need Servo. |
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Gold Member Username: AdddisorderWest palm, Florida Post Number: 3924 Registered: Jan-06 | that is f u c k ing insane paul, nice a s s box man! i would have tuned lower though but i guess its all personall preforance. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4996 Registered: Jun-06 | Thanks man. I just used FI's specs. Anything 1000w beneath 30hz in a home is, well, fun. |
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Platinum Member Username: BestmankindLos Angeles, CA USA Post Number: 11557 Registered: Oct-05 | still no vids |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4997 Registered: Jun-06 | Lol. If I show a vid of something impressive it means my sh1t is falling off walls and breaking. It also shakes the crap out of my big screen. You hear all kinds of crap rattling around in it. I definitely don't want to break that. Normal use doesn't look impressive short of the pics. I've pushed it so far up to about 40% volume and it started scaring me. I have a bar and the glasses rattled, windows shook bad, and even some of my tools in my shop fell off the walls. This baby could be the death off my house! But what a sweet sound at low to moderate volumes though, something you can't grasp off a vid, you just have to be there. |
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Platinum Member Username: BestmankindLos Angeles, CA USA Post Number: 11559 Registered: Oct-05 | alright. |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2033 Registered: Dec-06 | Take it outside and hook a cd player with a bassy cd in it to it haha |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4998 Registered: Jun-06 | I can't lift it myself, one of the reasons it's on wheels. I also would have to lug it up a flight of steps. |
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Gold Member Username: Naledge503Http://com4.runboard.c... Post Number: 1209 Registered: Jun-06 | WOW!!! Thats Awesome! |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 4999 Registered: Jun-06 |  |
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Gold Member Username: AdddisorderWest palm, Florida Post Number: 3930 Registered: Jan-06 | haha nice, chad keuppers cracked his house foundation with 2 avalanches |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5007 Registered: Jun-06 | D@mn I need to hear one of those. This is getting to me. No, really it is. |
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Gold Member Username: Denali_on_22sHit you in the chest m... Post Number: 1759 Registered: Feb-06 | that's sick paul |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5011 Registered: Jun-06 | |
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Gold Member Username: James1115Use a simple... Post Number: 9752 Registered: Dec-04 | very nice skills |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1253 Registered: Aug-06 | OOOOOHHHHH FFFFFUUUUCCCCCKKKKIIINNNNN SSSSWWWWEEEETTTT!!! AND YES IM YELLING, F U Bs... paul, awesome. that plate amp looks awesome. that box is fukin huge! how much are the plate amps if ya dont mind?... |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1254 Registered: Aug-06 | about how big is that plate amp, sizewize? its big compared to the sub... |
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Gold Member Username: Tremor1127Fi Car Audio has got m... Post Number: 1255 Registered: Aug-06 | and did you ever get anymore pics of your cat? |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2049 Registered: Dec-06 | http://www.partsexpress.com/pe/pshowdetl.cfm?PartNumber=300-808&raid=44&rak=300- 808 |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5045 Registered: Jun-06 | My cat is fixed Tremor. No luck for ya there my man. |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2053 Registered: Dec-06 | His number is 666....It IS man's number you know. I think I'm just tired haha |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5048 Registered: Jun-06 | Anyone reading....Does anyone know of a good place to get a higher powered plate amp? Andre? I'm thinking down the road. Maybe end of summer/early fall. D@mn I'm crazy.  |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2060 Registered: Dec-06 | Haha Why can't you get something like this? http://www.paradigm.com/Website/SiteParadigmProduct/ParadigmModels/HighPassSWCon trolUnits/ControlUnit_Specs.htm It has two outputs you could run into an amplifier and maybe power each VC of a sub individually? http://www.behringer.com/EP2500/index.cfm?lang=ENG You could get two of those and have almost 5000w (4-ohm per amp) at your disposal. It would total $700 if you bought them from a cheaper place. I recommend B&H or Musician's Friend. I've (parents) purchased from both of them before. http://www.musiciansfriend.com/product/Behringer-EuroPower-EP2500-Power-Amp?sku= 480697 http://www.bhphotovideo.com/bnh/controller/home?O=Search&A=details&Q=&sku=280617 &is=REG&addedTroughType=search Just suggestions, of course. You could probably get a better sub controller as well. I don't know where you'd get one though. If you really want a plate amp...there are some 3000w plate amps out there, but they cost a whole lot more than yours did. $$$$$ |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5051 Registered: Jun-06 | D@mn. That Behringer EP2500 is close to what I paid for my Dayton. Where the @#$! were you 6 months ago man! |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2062 Registered: Dec-06 | Marching Band and Football? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5054 Registered: Jun-06 | Ok. Almost forgivin. |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2123 Registered: Dec-06 | Paul are you trying to lay waste to your house? |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2124 Registered: Dec-06 | Is it pronounced Pall Luh-Ray-Uh? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5088 Registered: Jun-06 | Lol. Funny. I was just thinking about a vid of it in action and tried pumping it up. Pictures 15' away on walls were jumping and the cat ran for cover at only 30% volume. I'm not drunk enough to push it past 40% yet. Maybe I should switch to rum? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5089 Registered: Jun-06 | Say: Paul "Lawreea". |
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Gold Member Username: Arande2Extreme SQ FTW Post Number: 2125 Registered: Dec-06 | Ah that sounds more correct. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5091 Registered: Jun-06 | |
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Silver Member Username: Volfenhagking160015 SSD Wangin, Shawano, Wis... USA Post Number: 487 Registered: Oct-06 | dam dude, that sh1t is awesome i wish i had mad skills like you |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5120 Registered: Jun-06 | |
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Gold Member Username: Thx_3417Bournemouth ... Post Number: 3311 Registered: May-05 | Oh very nice very nice indeed and that blue neon light adds a nice cosmetic look the finishing touch very nice. Hmm, give me an idea I have blue 24" neon light 12v, I'll stick it in the JBL 4645 I'll start a new thread later thanks for the inspiration Paul, my hero. Yes that true Paul, there's no need to push it, if it blends in well with the res of sound system there's no need when you have a very efficient sub bass. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5123 Registered: Jun-06 | Kewl man. I'll look for the thread later when I get home.  |
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Bronze Member Username: Aaronjp1990Lerwick, Shetland Uk Post Number: 63 Registered: Apr-06 | it looks evil with the neon on |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5153 Registered: Jun-06 | Oh it is, son. It is. |
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Silver Member Username: SheriffPost Number: 288 Registered: Jan-07 | Gorgeous Paul. Looks really nice. What did you wire it with? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5158 Registered: Jun-06 | 10ga from Knukonceptz. |
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Gold Member Username: CenusHicksville, Ohio Post Number: 3009 Registered: Jan-05 | VERY NICE love the box, but if you want to gain some out of it try corner loading it(fire it into a corner) it will add some low end and make it a little bit louder. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5159 Registered: Jun-06 | Thanks. Yeah I wish I had an open corner to try that. My gameroom is pretty well spoken for. My last sub was positioned next to my big screen and because of this one's size, it is where it's going to be. Closer to my bar and I start losing glasses. Closer to my tv and I lose that. She shakes the house a ton. And she's plenty deep and loud now. |
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Silver Member Username: MgbcsLincoln, Nebraska Post Number: 646 Registered: Dec-06 | That's incredible Paul. Very nice work. A+++ |
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Gold Member Username: CenusHicksville, Ohio Post Number: 3010 Registered: Jan-05 | LOL ya i know at my old house i didn't have anywhere to put the sub for my book shelf stereo so i had to make a shelf, now at my new house i have a open corner which is perfect for them, it really helped with the low end since to the box is tuned so high. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5161 Registered: Jun-06 | Funny. Looking back on it all I really overbuilt this sub for my application. I can't even test this baby to see what she's capable of. It is that big of a sound. I'll have it on while surfing or putting around and the low freqs just envelop the house. It's almost like being in a zen-like state. |
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New member Username: NickaPost Number: 6 Registered: Apr-07 | I really like your sub there. How do I build my own? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5190 Registered: Jun-06 | Read. Learn. execute. How old are you? |
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New member Username: NickaPost Number: 9 Registered: Apr-07 | I'm 32, why? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5192 Registered: Jun-06 | Do you have any tools? Are you good with your hands? If so then you can make a very impressive sub in just a weekend. You first need to start with choosing a driver, calculate the box's dimensions using the subs parameters, construct, connect, and bump. What application is this for? Home, car? |
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Gold Member Username: Thx_3417Bournemouth ... Post Number: 3330 Registered: May-05 | Aaron Pottinger Quote "it looks evil with the neon on" _________________________________________________ Paul LOL Dr. Evil! So are there any plans for a Mini me?  I see that you went for a downward firing design, have you tuned it onto its side to fire it forwards into the room while noting the difference in SPL and frequency with Kick Slam and Depth? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5196 Registered: Jun-06 | I know downward firing subs are a good choice for dispersing the bass in a central location. I chose this design because of the possibility of changing its' location in the future. With the wattage I'm pushing through it and my amp's capabilities in settings, location really isn't much of a difference. She pounds so hard, clean and deep at even low volume settings, placement isn't a much noticable issue. I could stand her on its' end in another room and she would still sound impressive. I hit the nail on the head with this one, sub and amp choice. |
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Bronze Member Username: NickaPost Number: 16 Registered: Apr-07 | Yes I do a lot of woodworking. This one's for home. Wow you guys are helping me out so much so fast! |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5197 Registered: Jun-06 | Welcome to Ecoustics. |
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Bronze Member Username: NickaPost Number: 17 Registered: Apr-07 | Where can I learn about building a home subwoofer? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5198 Registered: Jun-06 | Go to http://www.bcae1.com/ Scroll down on the right side until you see "home theater subwoofers". A very good site, and a good start. When you decide on drivers, you will use its' specs to determine the box's volume requirements. it being vented or sealed, your choice. It will be either a "passive" or "powered" sub. Again, your choice. |
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Bronze Member Username: NickaPost Number: 19 Registered: Apr-07 | I think I'll go with an 18" driver. Go Big or Go Home. What's a good 18" I can get for around $500-1000? |
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Gold Member Username: Arande2Extreme SQ FTW Missouri Post Number: 2224 Registered: Dec-06 | http://www.tcsounds.com/lms5400.htm MUAHAHAHAHAHAHA! |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5202 Registered: Jun-06 | Big dog huh? My 18" Q does wonders for me. I love it! If you want to take it up a notch into the upper echelon, look at Tcsounds. http://www.tcsounds.com/lms5400.htm A VERY good driver. Pricey though. I might look at one myself for my next project. Then there's the amp to push it. Endless selection. |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5203 Registered: Jun-06 | Quick with your gun Andre. |
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Bronze Member Username: NickaPost Number: 20 Registered: Apr-07 | Wow you both recommended the same thing...but where do I get the 4000 watts they recommend to push it? |
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Gold Member Username: Arande2Extreme SQ FTW Missouri Post Number: 2225 Registered: Dec-06 | Haha you know it Paul... and Nick... www.soundprofessionals.com/static/PH-XP-5000.html $800... |
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Gold Member Username: Arande2Extreme SQ FTW Missouri Post Number: 2226 Registered: Dec-06 | And I'm not against using 2...(one on each voice coil...) for 10kw..you know...headroom... |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5204 Registered: Jun-06 | I haven't researched it yet. Can't imagine needing a 4000w subwoofer for the pad. I like my house. My 1000w sub does its' damage well. A 4000w sub would probably flap the shingles on the roof. |
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Bronze Member Username: NickaPost Number: 21 Registered: Apr-07 | WOW Andre an Paul! Yeah but would I just run the signal from my receiver (still debating what to get) into the amplifiers? 10kw is overkill Andre. I did say Go Big or Go Home. Paul would 10kw really make it that much better? |
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Gold Member Username: Arande2Extreme SQ FTW Missouri Post Number: 2227 Registered: Dec-06 | They've used it with 10kw in car audio installs and they say it was fine... At 6.25w a dollar why not get the second amp anyway? |
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Gold Member Username: WingmanaliveA pic is worth 1000 words Post Number: 5205 Registered: Jun-06 | Let's be serious. That kinda wattage is concert level. Choose a driver no more than 1000w rms and you WON'T be disappointed. HT right? You don't want to drown out the mid's and high's with all that bass. I'm an ex-car basshead who wanted to bring it to my HT. And I did, WELL! Overkill for most. 10,000w for HT is for the disturbed. |
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Bronze Member Username: NickaPost Number: 22 Registered: Apr-07 | Thanks Paul. You're right I better not go overboard. I don't even have a system yet and I better build one first, then see what I have left for a subwoofer. |
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Bronze Member Username: NickaPost Number: 28 Registered: Apr-07 | I made a system with Dynaudio and Rotel and am very pleased with the outcome. It's absolutely positively amazing at high levels. It severely lacks in deep bass though. I'm going to probably add that 5400 and two of those 5000w amps. I'm really worried about clipping if I use only one amp. What do you guys think? |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6069 Registered: Jun-06 | I think 10,000w in the house is, well, what it is. Crazy. They only recommend 1000w-4000wrms per driver anyway. What ever you go with, please post back some pics as I and many others are curious about the LMS-5400. At $900/piece, who wouldn't be. |
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Gold Member Username: Arande2Just a matte... Missouri Post Number: 2461 Registered: Dec-06 | Hey Paul. Is there ever going to be a vid? |
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Gold Member Username: Arande2Just a matte... Missouri Post Number: 2463 Registered: Dec-06 | Oh, and I myself have been working on a design (with the Q18) that has to meet the following criteria: 0 dB down at <20hz 3dB down <17hz Group Delay <30ms at or above 20hz Max Output >120dB@20hz (MUAHAHAHAHAHA) Under 5% THD So far I'm working on these. So far I have gotten a few of these. Modeling a Fi Q 18 I've gotten these calculations so far.. +1.5dB 26hz 0dB 22hz -3dB 18hz -6dB 16hz -10dB 14hz -20dB 10hz Group Delay 26ms @ 22hz (35 in the subsonics) Anechoic output 1w/1m 89dB @ 22hz Max Calculated Output @ 22hz 1500w/1m w/power compression 119dB Max Output 22hz (factoring in room gain, etc.) 126-129dB Max Output 15hz (room gain etc.) 117-120dB!!!! THD Peak 10% WOW that looks pretty good to me. What do you think? Here's how I have it set up to get those calculations. Fi Q 18 D2 Driver 16 Cu ft. Box 20hz Tune w/3 4" diameter 13" long ports 1500w from EP2500 Ok I know 16 Cu ft. may seem slightly large..but it's not for the 20hz tune...! I think that port area would be about right for the driver size. With 1500w, I'm not sure what the Xmax would be at 15hz (might exceed limits)... On that thought I wonder what the 20hz (tuning freq.) Xmax would be with 1500w input. I also wonder how many watts I'd need at 15hz to use all 54mm of p2p linear exc. with that specific box and tuning. I also wonder how many watts I'd need to get Xmax at 100hz...a lot I bet. Probably a more important question would be how my house would respond to 20hz at greater than 120db???? I also have another important one. Can I just hook the amp straight into the sub out jack on my receiver and use the gains on the amp to set output? I wonder if I have to get something to put inline between the amp or modify the amp in any way? Ah well it'll be a while before this may become a reality.. |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6806 Registered: Jun-06 | The sub line out jack from your receiver is not an amplified one so all your gain/high-low pass settings will come from the EP2500. As far as what 20hz will do to your house is entirely up to you Lol. I really can't push mine too hard because of it's surroundings. (The reason for no vid). I have way too many delicate/collectible things on shelves. Especially around the bar. I'm not exaggerating when I say the windows upstairs rattle a bit at only 3/8 volume. I've played with it and it sounds like my house is falling apart when I'm upstairs. I've found a sweet spot on the gain to be right at 1/2. Any higher and it drowns out the mids and highs. 16 cu's is a monster. Start planning on sub placement as it could affect your design limitations. Looks like you're doing your homework though. |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6809 Registered: Jun-06 | I have a BBQ to go to today so maybe tomorrow I'll try and make a small vid with the intro to Jurassic park (gets looow) and maybe some music. The only camera I have is a kodak digi cam so the vids won't be A+ quality. Should be fun. |
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Gold Member Username: Arande2Just a matte... Missouri Post Number: 2472 Registered: Dec-06 | Hehe... cool. I'm reconsidering a few things since I downloaded the newer version of WinISD (Xmax limitations)...stay tuned. |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6836 Registered: Jun-06 | Well I told you I have a simple digi cam so everything came out dark but nonetheless..... I didn't go beyond 1/2 volume at any point as you can see by the excursion on the music vid but I didn't have to, lol. I don't want to see what my house does if I ever did. Got quite loud anyways though. Intro to Jurassic park 2. http://s162.photobucket.com/albums/t259/wingmanalive/?action=view¤t=sub.fl v Paper that got sucked out of my hands. It was a b1tch getting it back out. http://s162.photobucket.com/albums/t259/wingmanalive/?action=view¤t=paper. flv I know some ppl may hate Gwen but it was what was playing on the radio when I turned it on so bite me. http://s162.photobucket.com/albums/t259/wingmanalive/?action=view¤t=music. flv Couple more with slightly better lighting. The shot glasses were shaken off the shelf. http://s162.photobucket.com/albums/t259/wingmanalive/?action=view¤t=intro2 .flv http://s162.photobucket.com/albums/t259/wingmanalive/?action=view¤t=intro. flv What's decieving is that shaking is in a 19' X 24' room. Imagine what it sounds like in a car! You'll have to be specific if you want to see anything else. I chose the 18" because of how low it gets, not how loud. I got what I wanted. |
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Gold Member Username: Arande2Just a matte... Missouri Post Number: 2473 Registered: Dec-06 | Hey thanks a lot man for doing the vids! The truth is though, I'd like to see the actual excursion of the front of the driver (or surround)...do you think you could show one of the actual underneath of the sub? I don't mean tipping it over, but I mean like showing the side of the driver underneath with like a flashlight and play some like low freq (7hz at 270w input is what it said would get) and show me the excursion? That's what I like to see. |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6846 Registered: Jun-06 | Give me a couple of minutes. I'll show that baby moving! |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6847 Registered: Jun-06 | Uploading vids to photobucket now. One is a 100hz to 20hz sweep. Lowest I have. The other is a song off of ROE. She was shaking!! |
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Gold Member Username: Thx_3417Bournemouth ... Post Number: 3804 Registered: May-05 | 7Hz those type of lows needs a lot of power and quite a few subs to make the difference. Besides damaging your hearing or cursing structural damage to the building, LOL go for it. |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6848 Registered: Jun-06 | The lowest tone I have is 20hz. Doesn't matter, it's only chaos below that anyway. I was afraid the box was going to fly apart at 20hz. The vids coming mind you are at 25% volume. Yes, 25% volume. Test tones are pure signals. Not much power is needed. Very shortly my friends. |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6849 Registered: Jun-06 | First is the song. http://s162.photobucket.com/albums/t259/wingmanalive/?action=view¤t=music2 .flv Next is the sweep from 100hz down to 20hz. Again this is at 25% volume. Any higher and who knows what happens. http://s162.photobucket.com/albums/t259/wingmanalive/?action=view¤t=100hzt o20hz.flv She's a beast. And I haven't even stretched her legs so to speak. |
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Platinum Member Username: BestmankindLos Angeles, CA USA Post Number: 13170 Registered: Oct-05 | thats awesome paul. post those vids in the fi audio forum. |
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Gold Member Username: Arande2Just a matte... Missouri Post Number: 2475 Registered: Dec-06 | Sweet I hope to get a Q18 on 1500w RMS sometime in the future. Of course something better might come out... Oh and an update on my design since I've done a little tweaking. First off, I've kept main goals as extension (not extreme though) and SQ with SPL right behind (as in I design for extension and SQ, then I look at SPL to make sure it's adequate). If this were a sub, these would be its specs. 1500w RMS 0dB 21hz -3dB 17hz -10dB 14hz Group Delay Peak 40ms@17hz, 18ms@21hz Max SPL 21hz: 123dB (anechoic) Max SPL 21hz: ~130dB (depends on room) You could really shake things huh? I like it so far. I've got to learn more before I do anything! |
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Gold Member Username: Thx_3417Bournemouth ... Post Number: 3806 Registered: May-05 | Placing the SPL db metre to the back of the room will show a high reading due to the nature of the room placing it the middle will show a different type of peak as well as the front. I noticed it sounds smoother and nice at the front with a quivering wave that shudders on "Mercury Rising" with (Bruce Willis) WOW |
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Gold Member Username: WingmanaliveA pic is worth 1000 posts!! Post Number: 6861 Registered: Jun-06 | Andre, there will always be something better coming out. By the time you're ready you will have changed subs 3-4 times. In 6 months I went through three designs myself. I think I need to slow down a bit lol. |
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Gold Member Username: Arande2Just a matte... Missouri Post Number: 2481 Registered: Dec-06 | Yeah true ^^ Hey, I've got some news. My dad supported me in building it when the time comes. That's always a good thing. I've got plenty of time (like a year lol, 3 months if I'm lucky) to make sure I've got the right design...whatever driver I end up using. My most recent design shows these specs... 25ms Delay peak @ 20hz -3dB 16hz Max *continuous* SPL 20hz: 122dB (Anechoic, 1500w/1m) Max *continuous* SPL 16hz: 119dB (Anechoic, 1500w/1m, Xmax limited) Max PEAK Spl 18hz: 123dB (Anechoic at Amp Peak 3000w Xmax limited) Add on room gain to those SPL numbers and be afraid...be very afraid. One problem though is the port velocity I might encounter if I do normal porting. If I port with the same ports you did (3 4" ports I believe?) I would encounter port velocities over 6 times as high as the "safe" level at full tilt... I think a slot port on the narrow side is like the only solution without spending too much on ports. A 24x8 54" deep port (if it's correct) is what I would need to stay in a safe area when blasting! I assure you I will be testing the limits of my room... At least my dad's supporting it. We'll see what happens. I see you're having fun with your sub... |
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Gold Member Username: Arande2Just a matte... Missouri Post Number: 2489 Registered: Dec-06 | Hmm, there might be big change in design (larger and lower tune)...closer to an LLT style. Current specs haha: -3dB at 12hz Max SPL 115dB 20hz (sacrificed to subsonic region...Xmax limit 750w) Max continuous SPL 13hz 122dB (1500w Xmax limited) This is with a 2100w amplifier ... The reason for the increased power (rated 1000w) is because of all the factors that could lower output... 1)Subwoofer Range - A lot of amps are rated at 1khz and don't have the necessary juice for lower freqs. so I've learned it's good to multiply the rating by .85 to get a more realistic one for the subwoofer range. 2100x.85=1785 2)Ac Line Voltage - Your house voltage isn't always going to be the optimum voltage, it may be lower at times. I've learned to take 10% more off the rating to allow for voltage drops. 1785x.9x1606.5 So going by the realising process the output of that 2100w amp may actually be more like 1600w. This varies with amps, of course. Your 1000w plate amp is already optimized for subwoofer freqs so you only have to take off 10%. 900w is still pretty good...and you'll get more when you're under optimum conditions. I just wanted to say a couple things haha. I'm not sure I realy like the results right now due to the limit of output in the 20hz region...but I do like the 122dB at 13hz thing...I might sacrifice that a little bit and increase it to 15-16hz 122-124dB capability to allow for a little more output in the 20s of hertz. Thanks for reading. |
