Can AVR DC Output at Preamp Outs be Increased?


Can the DC voltage output at a typical AVR be increased from a specified 1.0V output to 10V or more output Volts?

If so, would this be done by upgrading the DC voltage opamps in the preamp out section of opamps in the DC voltage section of the receiver. Or is there another way this could be accomplished?

And has anyone ever done this?
128x128vinyl_rules
Why do you want to do this? Only the AVR's speaker outputs need more voltage to drive the five or more speakers in your home theater setup. I assume your AVR already has at least 5 channels rated at 100 watts (28 volts AC) each! That is adequate for most speakers! 
Stop trying to second guess the engineering team that designed your AVR (Denon, Pioneer, Technics ...). Don't be an I***T!
Your power amp can handle 0.75V or 2.5V at the input.  Why would you make your preamp output >10V?  It wouldn't work with you amp.

In general, it is better to put more gain in the cleaner environment (preamp), but both pre and amp have to be designed for that (like my Benchmark DAC3 and AHB2) - otherwise it doesn't make sense.

In addition it is not an issue of different opamp - they don't set the gain, circuitry around them does and changing it would be like redesigning it.
vinyl_rules
Can the DC voltage output at a typical AVR be increased from a specified 1.0V output to 10V or more output Volts?
Ideally, you want your DC voltage at the output to be as close to 0 VDC as you can get.