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Head Unit/Amp compatibility - HELP

 

New member
Username: Shit4brains

Australia

Post Number: 1
Registered: Nov-04
Hi all

I have a question about preouts on the CD player I just purchased from ebay and their compatibility with the input sensitivity of the amp I also purchased from ebay (both yet to arrive)

The CD player I purchased from ebay is a Pioneer DEH-P9650MP (http://www.pioneeraus.com.au/car_entertainment/cdtuners/dehp9650mp/index.html) and the amp is a JBL GTO 2000 (http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem%26%26item%3D5733435832&ssPageNa me=STRK:MEWN:IT). In my haste I didn't do quite as much research as I should have done. After reading a couple of things in your forum (and having a look at this link I found in your forum (http://www.bcae1.com/gaincon2.htm) I realized I may have a problem. The Pioneer head unit preouts output 6.5 volts, and input sensitivity of the JBL amp is 250mV to 4 volts. Will this be a problem or can I rely on resistance in the wires to lower the voltage to the 4 volts? Would the amp have some sort of internal resistance on the inputs that would do this automatically? Is there any way I would be able to get around this?

BTW, I was looking at using the amp to drive a 12" eclipse sub (can't remember the exact model). I'm not getting it from ebay.

Any help/comments/advice would be much appreciated

Thanks people

Phil


 

Wayne100
Unregistered guest
I just hooked up an old alpine 3554 to my eclipse 5341. 2.7v out on eclipse and 500mv to 2v input on alpine, no problem.
 

New member
Username: Shit4brains

Australia

Post Number: 2
Registered: Nov-04
Yeah, chances are that it would work. The thing is will I damage something after long periods of use?

When I go to the following website (http://www.bcae1.com/gaincon2.htm) and type the different things into the calculator it pops up with a message saying "Turn it down! You're gonna blow my speakers :-) If you want more power lower the impedance" and in the calculator the signal status box says "CLIPPING". This is what I am worried about, I don't usually turn my stereo all the way up but on the odd occasion I do. Will I damage my sub? Of course, I'm assuming I've typed everything into the correct boxes of the calculator.

Cheers big ears

Phil
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