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Amp channel question.


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micahsmith 00 
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Joined: August 11, 2005
Posted: October 06, 2005 at 12:12 AM / IP Logged  

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

rallysport 
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Posted: October 06, 2005 at 12:38 AM / IP Logged  
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.
micahsmith 00 
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Posted: October 06, 2005 at 12:43 AM / IP Logged  

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

dwarren 
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Posted: October 06, 2005 at 1:24 AM / IP Logged  

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.

micahsmith 00 
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Posted: October 06, 2005 at 1:39 AM / IP Logged  

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

DYohn 
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Posted: October 06, 2005 at 8:20 AM / IP Logged  
What's the make/model of the amp?
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micahsmith 00 
Member - Posts: 21
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Posted: October 06, 2005 at 12:00 PM / IP Logged  

jbl gto1201.1

DYohn 
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Posted: October 06, 2005 at 1:09 PM / IP Logged  
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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