anyone else running a car subwoofer at home?

ahardy17
ahardy17 Posts: 84
edited June 2009 in Car Audio & Electronics
i have my memphis m3 12" aub in a sealed box with a pioneer gm5300t amp mounted on the back and a 750 watt computer power supply running the amp. i have the stereo rca's from the amp bridged into the single sub out channel on my yamaha receiver and actually have my db690's in boxes for use at home haha...all this is happening because i had a nice car system til i no longer had a car. anyway the issue at hand:

when i'm really pushing the sub with high volumes there is a terrible delay in the subwoofers response before it kicks into the note...i was thinking about investing in a capacitor and running that in line with the power supply and amp. anyone know if this will help?

one other concern is the very thin "power" wires being used by the power supply. it has about 50 +12V wires for those 750 watts and only one thin (maybe 22guage) wire is connected to the amp. any problems there with the delay?
In-Car:
Head Unit: Sony MEX-1GP
Door speakers: Infinity Kappa 680.9cs
Rear speakers: Polk db690
Subwoofers: Memphis Audio 15-M3124
Amps: Pioneer GM5300T, Kenwood KAC 6020, Memphis Audio MCD1.1100

In-Home:
Harmon/Kardon AVR 230
Harmon/Kardon DVD 101
Yamaha RX-V995
Bose 161
Bose 901
Polk FXi30
Post edited by ahardy17 on
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Comments

  • nadams
    nadams Posts: 5,877
    edited May 2009
    Computer power supplies are not powerful enough to run sub amps, period. Consider that a standard car alternator would be around 100amps, if not more. What's that computer PSU rated on the 12v rail? Maybe 20-30 amps?
    Ludicrous gibs!
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  • thuffman03
    thuffman03 Posts: 1,325
    edited June 2009
    Nope! I don't even have a sub right now. All my home speakers go down into the low 20HZ range.
    Sunfire TGP, Sunfire Cinema Grand, Sunfire 300~2 (2), Sunfire True Sub (2),Carver ALS Platinum, Carver AL III, TFM-55, C-19, C-9, TX-8, SDA-490t, SDA-390t
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  • zarrdoss
    zarrdoss Posts: 2,562
    edited June 2009
    I have before but just used a sub plate amp to power it, 15" MTX 9500 with a Dayton 1000 watt amp going to it, damn near blew the house apart!
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  • Face
    Face Posts: 14,340
    edited June 2009
    What a terrible idea.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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