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Gold Member Username: MendonmafiaUSA Post Number: 1108 Registered: Aug-06 | My amp is capable of accepting up to 18 volts but how would i be able to get that much out of my electrical system? not sure what my new MCR alternator is going to put out but i bet its not anywhere near 18 volts probably more like 14. |
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Gold Member Username: Denali_on_22sThe kids like my rhyme... Post Number: 4010 Registered: Feb-06 | there's a lot of sh!t you have to do to get a daily 18v system... it's really impractical though. |
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Gold Member Username: Nd4spd18Northwest PA Post Number: 6110 Registered: Jul-06 | Your electrical system runs at 14.4 volts max. You would have to create an enitre seperate electrical system to run higher voltage, VERY expensive. |
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Gold Member Username: MendonmafiaUSA Post Number: 1109 Registered: Aug-06 | thats what i thought nvm that then. |
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Bronze Member Username: LetgetempBROOKLN, NY Post Number: 67 Registered: Feb-08 | try 144 amps with 25 volts and the rev cumilator with the trans sender |
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Gold Member Username: MendonmafiaUSA Post Number: 1112 Registered: Aug-06 | tru that. good idea! why didnt i think of that |
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Platinum Member Username: Chaunb3400Huntsville, Alabama U.S. Post Number: 13783 Registered: Jul-05 | Im pretty sure Polo runs a 16v system, u might wanna ask him |
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Gold Member Username: MendonmafiaUSA Post Number: 1114 Registered: Aug-06 | Yea i think he does too but im not gonna bother i just gotta get my 200 amp alt installed and build my new box. im sure i will be satisfied. i should be running my sx's on 2200 watts and 5 cubes net when all said and done. im just pretty dissapointed with the output at this point but i have my gain all the way down (5volts) and im using my old 3.8cube box. hopefully it will get much louder when i set my gains for my 4 volt preouts and put then in the larger box. |
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Gold Member Username: InsearchofbassPost Number: 7904 Registered: Jun-04 | Mark how do you have those subs firing in your car...if its forward from my experience with a car similar to that its probably pretty strong on the low frequencies and dies off pretty quickly up higher |
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Gold Member Username: MendonmafiaUSA Post Number: 1119 Registered: Aug-06 | i have the firing foreward rite now pratically sealed off from the trunk and it is pretty bad on the lows and strong on the upper. i turned the subs around and put the subs almost touching the trunk lid and it sounded much better but i couldnt leave it like that because my amp isint mounted yet as this setup is just temporary and i had to put it on the box amd it was likely to slide and fall off. |
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Silver Member Username: Nickyp0219Post Number: 575 Registered: Jun-06 | just screw it into the back of your seat no? |
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Gold Member Username: MendonmafiaUSA Post Number: 1123 Registered: Aug-06 | nahh i can wait till i build my new box next week. |
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Silver Member Username: WaresgaragestereoFort Valley, GA United States Post Number: 125 Registered: Jan-08 | if your talking about screwing the amp to the back of the seat, no, i screw all the amps in my cars to the speaker box. |
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Gold Member Username: InsearchofbassPost Number: 7906 Registered: Jun-04 | "i have the firing foreward rite now pratically sealed off from the trunk and it is pretty bad on the lows and strong on the upper. i turned the subs around and put the subs almost touching the trunk lid and it sounded much better but i couldnt leave it like that because my amp isint mounted yet as this setup is just temporary and i had to put it on the box amd it was likely to slide and fall off." hmm just the opposite...well thats a good thing ...the larger box should balance things out |
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Gold Member Username: MendonmafiaUSA Post Number: 1124 Registered: Aug-06 | yea thats what im hoping any ways plus usually a larger box makes it louder in general. |
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Silver Member Username: BonhamdNorthern, Michigan USA Post Number: 209 Registered: Nov-07 | the sub box is not a great place to screw the amp in to |
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Silver Member Username: WaresgaragestereoFort Valley, GA United States Post Number: 130 Registered: Jan-08 | I think a larger box would work. |
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Gold Member Username: Nd4spd18Northwest PA Post Number: 6124 Registered: Jul-06 | NEVER mount amplifiers to a speaker box Quote http://www.bcae1.com/amplfier.htm Amplifier mounting: DO NOT mount an amplifier on your subwoofer box. I know that there has been a great deal of discussion over mounting an amplifier to an enclosure and many people do it all of the time with no problems but those people probably build good enclosures from 3/4" (or thicker) MDF with extensive bracing. Most people (especially young impatient people) are too lazy to do that and build unbraced enclosures from 5/8 MDF. These enclosures will flex considerably more than a proper enclosure and will likely cause amplifier failure if the amp is mounted to the enclosure. REASON: When the woofer(s) moves in or out, the box flexes and therefore causes the sides of the box to vibrate. This vibration is transferred to the amplifier mounted to the box. All of the electrical components in the amplifier have mass. Inertia (an object in motion tends to stay in motion, an object at rest tends to stay at rest) tells them to stay at rest, the box vibration is trying to make them move. The energy from the box's vibration is transferred to the components through the electrical leads which are soldered into the circuit board. All of this will cause the components to break loose and therefore cause the amplifier to fail prematurely. Basically, the amplifier will commit suicide! :-) I'm not telling you this because someone told me it was bad. I've been repairing amplifiers since ~1985. Virtually every amplifier that's come into my shop with parts rattling around inside them have been mounted on the speaker box. It causes the legs of the semiconductors to break (which causes amplifier failure). It causes the capacitors to break off of the board (which can cause catastrophic amplifier failure). It causes solder joints to break on the semiconductors mounted to the heat sink. It causes transformer windings to grind into one another (which causes lots of smoke to pour out of your amplifier). People who repeatedly tell others to mount their amps on the speaker box because they've never had a problem remind me of people who drink and drive and say there's nothing wrong with it because they've never crashed their vehicle. Eventually, in both cases, problems will arise. |
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Gold Member Username: Th3pwn3rPost Number:... Post Number: 6824 Registered: Jul-06 | I've had my amps mounted on my box for a while. As long as you can't feel any vibrations while your subs are bumping the amps won't feel any vibrations either. I'll let you guys know when my 4 amps that are box mounted fail. |
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Silver Member Username: Nickyp0219Post Number: 578 Registered: Jun-06 | thank you m.s. |
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Gold Member Username: JtownTeam RD, Texas Post Number: 2096 Registered: Mar-07 | wait....you have the amp just "sitting" on top of the box, not screwed even onto the box? just resting? I really hope that's not what you meant. |
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Gold Member Username: MendonmafiaUSA Post Number: 1126 Registered: Aug-06 | alright just to clear this up i do not have my amp mounted or reating on my box i did that for a total of 5-10 minutes just to test how my subs sounded facing the trunk and i also had a thick foled up towel between the amp and box so that it wouldnt vibrate. as of now my subs face into the cabbin and the amp is on the trunk floor. when all waid and done i plan to mount the amp on my rear shelf. |