subs not playing
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=111396
Printed Date: July 19, 2025 at 1:53 PM
Topic: subs not playing
Posted By: playaslaya
Subject: subs not playing
Date Posted: February 08, 2009 at 2:32 AM
have a 1500 W RMS(i think its overated though) monoblock amp connected to two cerwin vega HED124 subs(rated at 300w rms each). The voice coils of each sub are connected in parallel and then the subs are connected in parallel to the amp giving a 1 ohm load.
The problem is that when powered the subs dont play at all. I've double checked all connections, fuses and polarities and everything appears to be connected properly.
The power LED indicator on the amp does come on though.
Please help, i have no idea where i went wrong. Thanks
Replies:
Posted By: soundnsecurity
Date Posted: February 08, 2009 at 4:01 AM
is your amp 1 ohm stable?
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Posted By: boogeyman
Date Posted: February 08, 2009 at 8:02 AM
I dont think your amp is 1 ohm stable. Wire your subs in a series parallel configuration giving you a 4 ohm load.
Posted By: i am an idiot
Date Posted: February 08, 2009 at 9:24 AM
Since you did not tell us what kind of amp you have, this may or may not be your problem. Some amplifiers speaker terminals are as follows + + - -. As opposed to the traditional + - + -.
Posted By: playaslaya
Date Posted: February 09, 2009 at 1:16 AM
The terminals are the +-+- configuration. I've tried all possible wiring combinations from the subs to the amp and still there was no response from the subs.
Posted By: i am an idiot
Date Posted: February 09, 2009 at 6:16 AM
We are still guessing here, since you still have not told us what kind of amp you have. Does it have a Master/Slave switch on the amp?
Posted By: aznboi3644
Date Posted: February 09, 2009 at 10:48 AM
check the signal
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Custom Enclosure Design
Posted By: playaslaya
Date Posted: February 12, 2009 at 1:22 AM
The Amp is an Ice Power PS3600. As far as i can tell there is no slave or master switch.
Posted By: i am an idiot
Date Posted: February 12, 2009 at 6:16 AM
Is there another amp mounted near enough that you could remove the RCA cable from the other amp and connect it to the IcePower amp? This will tell us if you have no signal on the IcePower's RCA cable.
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