2. amps-preamps
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Can I use integrated as standalone pre and/or amp?

My main system is suffering from a weak left channel, especially noticeable at low volumes. I've ruled out source as the culprit, as the problem exists with both turntable and CD player. I've also checked and double checked to make sure all connections are secure, and even swapped interconnects. With source and interconnects ruled out, that leaves either the amp or preamp.

I don't have another amp or preamp to slot in for the purpose of ruling one or the other out, but I do have a Marantz PM6004 integrated in my secondary system. Can I run my preamplifier into a source input on the integrated, thereby using it as an amplifier? Or, could I possibly use the integrated as a standalone preamp by connecting my amp to the recorder out jacks? (Sorry if these are silly questions.)

If using the integrated won't work, does anyone have a guess as to what might be causing my weak left channel?

My amp is an Odyssey Khartago Extreme, and my pre is a Decware CSP2+.

Thanks for your help.
rischa

Showing 2 responses by tls49

tls49's avatar
tls49
1,351 posts
 
Connect the Left output of Decware preamp to Right input on Odyssey amp, and Right of preamp to Left of amp. If your weak channel moves to the right, preamp is the problem. If weak channel stays on the left, amp is the problem.

Also, the Decware preamp has independent output level controls. Have you checked their adjustment?
tls49's avatar
tls49
1,351 posts
 
Rischa, It could be something as simple as one of the tubes. The front signal tube (directly behind the volume control) is common to both channels, but the next two could be swapped (unit turned off and some time to cool) since the left one is left channel and right one is right channel. Again, if the problem moves, it's that left channel tube. The rectifier tube is also common to both channels.

You will need to call Decware to return unit for service, so why not talk with them.
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