Amp channel question.

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=63896
Printed Date: May 09, 2024 at 11:54 PM

Topic: Amp channel question.

Posted By: micahsmith 00
Subject: Amp channel question.
Date Posted: October 06, 2005 at 12:12 AM

i have another question to ask you guys. when wiring 2 DVC 4ohm subwoofers to a mono amp, do you use only 1 channel ( + - ) or both channels on the amp? i am currently using 1 channel, from looking at those pictures some of you showed me before (how to wire subs in certain ohms) but i was looking inside the manual and instructions and it shows every sub being used by both channels. am i suppose to use both?

thanks

Replies:

Posted By: rallysport
Date Posted: October 06, 2005 at 12:38 AM

well if its a mono amp it only has 1 channel , some mono amps will have a 2 channel appearance for ease of connecting wires but are connected inside.

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Posted By: micahsmith 00
Date Posted: October 06, 2005 at 12:43 AM

so me using 1 channel is fine? i just got thrown off by the picture in the book. every picture shows both channels being used when wiring 2 subs. so i got concerned.

thanks

Posted By: dwarren
Date Posted: October 06, 2005 at 1:24 AM

Be careful with that. My mtx amp is a mono amp but has two sets of speaker outputs and they both must be used in order to configure the proper resistance.

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Posted By: micahsmith 00
Date Posted: October 06, 2005 at 1:39 AM

hmm. well that confuses me considering i only have 2 wires coming out of the box terminals. i did what the woofer configuration showed for 4ohms. wired both subs series/parallel, and then that left just 2 wires (pos. & neg.). then i connected the pos. and neg. wires to the one channel on the amp. i thought that's how you do it, but the jbl book showed both channels being used (which made me think i did it wrong) so i don't know what the heck to do. i don't see how both channels can be used if i only have 2 wires to work with. i dont know, i'll figure something out.

thanks

Posted By: DYohn
Date Posted: October 06, 2005 at 8:20 AM

What's the make/model of the amp?

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Posted By: micahsmith 00
Date Posted: October 06, 2005 at 12:00 PM

jbl gto1201.1

Posted By: DYohn
Date Posted: October 06, 2005 at 1:09 PM

That's a class D mono subwoofer amp with one output. Multiple connection points are there for convenience only (which is normal in mono amps with multiple connection points. In fact I know of NONE that are any different than this.) You may use either or both + and either or both - speaker connections as they are connected together inside the amp. See page 3 of your owner's manual. The amp is stable to 2-ohms.

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