|
Bronze Member Username: KrijgySmithfield, Virginia United states Post Number: 35 Registered: Jan-05 | when bridging your amplifier does that affect the ohms on the sub in anyway??? |
|
Bronze Member Username: Jlprix91West, Michigan Usa Post Number: 49 Registered: Oct-04 | no the subs voice coils do not change the load that the amp puts out changes |
|
Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7329 Registered: Dec-03 | the impedance of the sub itself is a fixed value. the impedance varies with the frequency the sub is producing, but the nominal load or average doesn't alter. now, if you bridge the amplifier, the amp will see half of the actual load because you'll be using both the 12 volt positive and 12 volt negative power supply rails together to push and pull the sub, increasing the power into a 4 ohm load. this means when the amp is bridged, it's only stable to twice it's load compared to running in stereo. |
|
chi town guy Unregistered guest | glasswolf i was told to come talk to you.lol.ok i just got six 12in subs.they are rockford fosgate rfp4412.they are 200 wats rms and 400 peak with a 4ohm connection and the frequency responce is 28-200hz the sensitivity is 87.5db ok now the problem is i have know idea what i just told you LOL i just read it off the box.but i do know i have a 1994 chevy astro and i had a box built to the speakers spesifacations so we are left with my question.ok keep in mind i want to get every bit of power out of these subs that they have.do you know of any amp/amps that would push these subs if not what should i look for when buying the amp/amps.and my second question is do i need a second battery,bigger alternator or a capassider if you can help i would be verry THANKFULL if not THANKS for reading and thinking anyways LOL |
|
chi town guy Unregistered guest | PS GLASSWOLF are these ok subs i just bought them cause i got a good deal-i think-and i know rockford fosgate is suposed to be good stuff when it comes to car audio ok thanks again |
|
Silver Member Username: Taylor17Kopperl, Texas Post Number: 113 Registered: Jan-05 | They are ok sub's. Rockford makes ok stuff. I am guessing that the subs are 4 ohm svc so they will be wired to 1 ohm? If so you have a few choices on amp's Overall just find an amp that put's out 800 watt's rms at 4 ohm's After you hook the subs up each should get 200 watts rms! |
|
Silver Member Username: Taylor17Kopperl, Texas Post Number: 114 Registered: Jan-05 | Sorry just realised you said that you have 6 sub's not 4! So that changes everything. It will be hard to get just 1 amp to match that power with 6 ohms. |
|
chi town guy Unregistered guest | lol lol i thought about getting three but i thought it would make a nicer set up with one but im open to all ideas i just want to rock all six as hard as possible with out blowing any thing ps thanks |
|
Silver Member Username: Taylor17Kopperl, Texas Post Number: 119 Registered: Jan-05 | 3 would work nice! Just make sure each amp put's out 400 watt's at 2 ohms, so that way each sub is getting the amount of power it need's. That will be a lot of money in amp's:-) |
|
chi town guy Unregistered guest | ok thanks..........................but will it hit hard or is it a waste of $$$$$$$$ and doy you know of any amps i should look in to?? |
|
Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7335 Registered: Dec-03 | you've got 6 subs. 200 watts, 4 ohms each. you'll want 1200 watts RMS total. with the subs wired in series/parallel the JBL bp1200.1 would be an ideal amplifier for you. one amp that'll deliver what you want. it runs about $200-300 on eBay or on-line retailers. you'll also need a 4 gauge amp wiring kit for this amplifier. larger wire if you plan to run another amp on the same cable. |
|
chi town guy Unregistered guest | so 1 amp will push all six subs to their max power?? and how do you wire in series/parallel? and will this put out a lot of bass.. THANKS FOR INFO PS sorry about these crazy off the wall questions but i know nothing about this stuff just want a hard hitting system and dont want to blow my subs up LOL |
|
Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7337 Registered: Dec-03 | yes lots of bass. www.bcae1.com has a section on wiring multiple speakers. I think it's called advanced speaker wiring calculator or something. you want the resulting load to be between 1 and 2 ohms. |
|
chi town guy Unregistered guest | ok sorry is that amp a mono amp 2 channel or muti channel????????????////again im sorry but thanks for your input also any websites to get this amp cause etronics does not have it and thats the only site i know. |
|
Silver Member Username: Taylor17Kopperl, Texas Post Number: 125 Registered: Jan-05 | I believe it is a mono. Don't know any websites for that amp sorry! |
|
chi town guy Unregistered guest | ok that helps me on my mission atleast i know what im looking for nowLOLOLOL I THINK |
|
Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7344 Registered: Dec-03 | yes mono amp. www.ebay.com search consumer electronics > mobile audio > amplifiers > "JBL 1200.1" or try "JBL BP1200.1" |
|
chi town guy Unregistered guest | ok thanks again to both of you and if i get it ill let you know ok bye for now thanks again for all of your help |
|
chi town guy Unregistered guest | glasswolf i found that amp it looks nice but i can not find out hou to hook 6 4ohm subs to a 2ohm load on this amp and i looked on that sight and went to every spot on the right side i found all kind of help but i cant figure out how to do this can you help me again please.. thank you cause i would like to know how it works and is hooked up before i drop 4hundread plus on an amp again thanks for all the help and suggestions |
|
Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7351 Registered: Dec-03 | the amp is stable down to 1 ohm, and puts out 1200 watts RMS at 1 to 2 ohms. here is the exact page you need: http://www.bcae1.com/srsparll.htm http://www.bcae1.com/spkrmlti.htm if these two pages are too complicated, you may just want to go with using 3 separate amplifiers with a distribution block. Then just run one pair of subs on each mono amp for a 2 ohm load per amp. |
|
New member Username: Benno_da_cPost Number: 2 Registered: Jan-05 | does ne 1 know where i can put the red power cable for a amp through into the car on a 1993 ford escort i cant find ne holes to push it through email me sounder_benno@hotmail.com send pics if possible. |
|
Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7357 Registered: Dec-03 | ben, buy a haynes manual for your car and find a gromet through the firewall yourself. |