2 channel amp putting out different power on each channel??

[gamebucketman 10+ year member]

I recently purchased an older Mtx 2 channel amp on eBay (RT2200X). When I received it I hooked it up to run my Components. I set the gain by testing the left channel with a DMM to 21 volts then I decided for the hell of it to check the right channel it said 24.3 volts. A 38 watt difference and of course quite a noticeable difference when listening to music.

What would/could cause this? Is it something that could be fixed easily or is this amps calling to be a mono amp? I would like some input on this from you guys

and no my headunit is not faded right

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[gamebucketman 10+ year member]

By the lack of responses i will take it that this is not a common thing and there are no suggestions? Mono amp it is i guess.

 

[ProgMtl 10+ year member]

none of my amps have ever been the same but have never had that much of a difference

 

[Symon_say 10+ year member]

They have diffente voltage but just a little bit like 0.1 or less.