So I have a little car amplifier I wanna use to run my (annoyingly) passive subwoofer on (its only a 160w amp but should be enough). Problem is its 12v DC and we use 120v AC for house power. So I thought why not get just get an inverter?!! Yeah..... I forgot that these amplifiers can draw anything from 5 amps to several hundred amps depending on its rating.... This amplifier would probably max out our 15 amp circuit breaker by itself... Having a led acid car battery (most likely 35amp) to run off inside would be ideal but highly unappreciated by my parents due to the toxins released from it and sealed batteries are quite expensive..... Any thoughts?
-
-
Got it working at max no problem
Turns out it seems to pull just over an amp (AC) at full gain with 2 subs and a shitty speaker on it. Then again I shouldn't be surprised. 12v what ever amps its pulling (DC) is different then 120v AC Too much distortion at high gain though best performance at around a third.
-
im pushing 12v 2a on a 15v amp board, and it sufficiently powers my sub quite well
pc -> preamp -> splitter -> my 'crossover' (equalizer set to +12db on 35-200hz, twice since its a stereo one and im using it as mono), my amp
'crossover' -> amp (cheapo ebay board) -> subwoofer
amp -> left= -5db, right = -0db -> right has my left/right tweeters, left has my midranged
midranged is quieter because i like it when it doesn't overpower, and i like my music with sharper highs and deeper lows
total: 2 midranged, 2 tweeters, 1 subwoofer
Turns out it seems to pull just over an amp (AC) at full gain with 2 subs and a shitty speaker on it. Then again I shouldn't be surprised. 12v what ever amps its pulling (DC) is different then 120v AC Too much distortion at high gain though best performance at around a third.