adding another cap and amp resulted in loss of subwoofer output?
01-12-2007, 04:26 PM
#1
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adding another cap and amp resulted in loss of subwoofer output?
first off thank you for viewing my thread, i'll try to be brief, here is a breakdown of my system...
-audiobahn triple subwoofer bandpass box, specs can be found here... http://www.mimousa.com/home.asp?dir=products&prod=1261...
- profile 1200w which is listed here http://www.millionbuy.com/prfap1200.html...
- power acoustick 5 farad capacitor http://www.millionbuy.com/pakpcnc-3f.html...
from the beginning:
I had a pretty basic setup, the 3 subs and and one of those amps with an 8 gauge wire running to it, they sounded pretty decent and all was well... (btw i believe they were wired series-parallel)
the problem:
I decided since the subs could handle more power, i purchased another amp and a cap... i ran 1/0 gauge wiring to a distribution block which feeds two 4 gauge wires (one to cap, one to the other amp since apparently the cap isn't meant for multi-amp systems)... obviously remote lines sending 12v to both amps and rca cables and blah blah blah... both the amplifiers work, and each subwoofer is receiving power through parallel wiring (tried series just for kicks but isn't making a diff).... the subwoofers (given i've added another amp and thicker wiring) have lost power through my new addittions... what gives? i know that it could be several problems since it's difficult to pinpoint the exact cause, but any ideas and thoughts are most greatly appreciated, i apologize for the double post!
-josh-
-audiobahn triple subwoofer bandpass box, specs can be found here... http://www.mimousa.com/home.asp?dir=products&prod=1261...
- profile 1200w which is listed here http://www.millionbuy.com/prfap1200.html...
- power acoustick 5 farad capacitor http://www.millionbuy.com/pakpcnc-3f.html...
from the beginning:
I had a pretty basic setup, the 3 subs and and one of those amps with an 8 gauge wire running to it, they sounded pretty decent and all was well... (btw i believe they were wired series-parallel)
the problem:
I decided since the subs could handle more power, i purchased another amp and a cap... i ran 1/0 gauge wiring to a distribution block which feeds two 4 gauge wires (one to cap, one to the other amp since apparently the cap isn't meant for multi-amp systems)... obviously remote lines sending 12v to both amps and rca cables and blah blah blah... both the amplifiers work, and each subwoofer is receiving power through parallel wiring (tried series just for kicks but isn't making a diff).... the subwoofers (given i've added another amp and thicker wiring) have lost power through my new addittions... what gives? i know that it could be several problems since it's difficult to pinpoint the exact cause, but any ideas and thoughts are most greatly appreciated, i apologize for the double post!
-josh-
01-12-2007, 04:38 PM
#2
Well your link did not work for me. But I assume its the ABP123T or ABP103T in either case how many connections is there on the box? And is it 4 ohms
Audiobahn ABP103T - Car Subwoofers Band Pass Enclosures Audiobahn ABP103T 10" Triple Big Window with suppleather Mirror And Blue Neon from MimoUSA.com
Audiobahn ABP103T - Car Subwoofers Band Pass Enclosures Audiobahn ABP103T 10" Triple Big Window with suppleather Mirror And Blue Neon from MimoUSA.com
01-12-2007, 04:59 PM
#4
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Join Date: Jan 2007
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sorry guys!
http://www.mimousa.com/home.asp?dir=products&prod=1261 <--- the subs
http://www.millionbuy.com/prfap1200.html <----- the amps
http://www.millionbuy.com/pakpcnc-3f.html <----- the cap
yeah it's the abp103t and they're 4 ohm stable... there WERE two connections on the back of the box (+ and -) because they were previously wired series-parallel... now they're wired series and have 3 sets of + and - from each sub... any ideas?
http://www.mimousa.com/home.asp?dir=products&prod=1261 <--- the subs
http://www.millionbuy.com/prfap1200.html <----- the amps
http://www.millionbuy.com/pakpcnc-3f.html <----- the cap
yeah it's the abp103t and they're 4 ohm stable... there WERE two connections on the back of the box (+ and -) because they were previously wired series-parallel... now they're wired series and have 3 sets of + and - from each sub... any ideas?
01-12-2007, 05:25 PM
#8
3 subs in parallel to 2 unstrappable amps? oh man this is interesting. this threat is short of a few pics of the install itself to make it a classic.
here we go....
your subs are single 4 ohm according to the site, so right now all in parallel you have it at 1.33 ohm.
one of your amps ratings are as follows......
# RMS Output Power (2 Ohms): 300W x 2
# Bridged RMS Output Power (4 Ohms): 600W x 1
so your amp is not 1200 watts, its actually 600 watts. and if its only rated to run at 4 ohm mono how did you have it wired at 1.33 ohm to begin with? it should/will blow up playin that low.
so now you added a second amp.....everything in parallel you have 1.33 ohm on the subs. the amps are not strappable, they are 2 channel class a/b amps
how you wired 1.33 ohm to 4 channels (pair of 2 channel amps) is beyond me.
in summary, those subs and one of those amps is BAD COMBO. further, two of those amps with those subs is an even worse combo. I'd suggest something here but im clueless, the sub website doesnt even say their power rating.
from experiance i can tell you that the issue might be that your box is a Triple Big Window with suppleather Mirror, normally when you run 2 amps you would need a Quad Big Window with NON suppleather Mirror. Give that a shot.
here we go....
your subs are single 4 ohm according to the site, so right now all in parallel you have it at 1.33 ohm.
one of your amps ratings are as follows......
# RMS Output Power (2 Ohms): 300W x 2
# Bridged RMS Output Power (4 Ohms): 600W x 1
so your amp is not 1200 watts, its actually 600 watts. and if its only rated to run at 4 ohm mono how did you have it wired at 1.33 ohm to begin with? it should/will blow up playin that low.
so now you added a second amp.....everything in parallel you have 1.33 ohm on the subs. the amps are not strappable, they are 2 channel class a/b amps
how you wired 1.33 ohm to 4 channels (pair of 2 channel amps) is beyond me.
in summary, those subs and one of those amps is BAD COMBO. further, two of those amps with those subs is an even worse combo. I'd suggest something here but im clueless, the sub website doesnt even say their power rating.
from experiance i can tell you that the issue might be that your box is a Triple Big Window with suppleather Mirror, normally when you run 2 amps you would need a Quad Big Window with NON suppleather Mirror. Give that a shot.
01-12-2007, 05:42 PM
#9
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Join Date: Jan 2007
Posts: 8
haha, thanks for the help! however, i must admit i'm even more confused lol... lemme start over... the subs were ORIGINALLY wired in series-parallel with 8 ga. wire running to that amp, the subs hit great (for me, atleast)... now they're wired in series (but were temporarily run in parallel when i added the 2nd amp and bought a cap)... either i'm more confused than i think, or you're missing the point (in which case i believe i'm extremely dumbfounded)... should they be re-wired in parallel series and i purchase another amp? is the cap bad? is my grounding bad? help!! haha...
