Getting Both Channels out of my M-501

Getsum · 5th May 2004, 04:32 PM

I have a Onkyo M-501 amp. I want to drive a JBL sub that has dual inputs. My problem is that my amp will only push one channel at a time because I don't have the Onkyo preamp. There is an input cable from the preamp to the amp which enables both channels. This seems like a marketing gimmick by Onkyo to get you to buy thier preamp. My question is how to disable the plug and be able to use both channels at once. I am ready to tear into the amp but thought I'd see what the experts have to say...... Thanks in advance!

tnaratil · 3rd February 2011, 05:50 PM

I bought a m-501 Onkyo Amp and a P-309 Preamp and I am having the same issues. Wondering if its even possible, I tried looking for the matching P-301 preamp and they are not around.

Thanks

5th May 2004, 04:32 PM	#1
Getsum diyAudio Member Join Date: May 2004 Location: Mountain Home Arkansas	Getting Both Channels out of my M-501 I have a Onkyo M-501 amp. I want to drive a JBL sub that has dual inputs. My problem is that my amp will only push one channel at a time because I don't have the Onkyo preamp. There is an input cable from the preamp to the amp which enables both channels. This seems like a marketing gimmick by Onkyo to get you to buy thier preamp. My question is how to disable the plug and be able to use both channels at once. I am ready to tear into the amp but thought I'd see what the experts have to say...... Thanks in advance!

3rd February 2011, 05:50 PM	#2
tnaratil diyAudio Member Join Date: Feb 2011	Having the same problem! I bought a m-501 Onkyo Amp and a P-309 Preamp and I am having the same issues. Wondering if its even possible, I tried looking for the matching P-301 preamp and they are not around. Thanks

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