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Old 06-10-2009, 05:02 PM
GreenLeo GreenLeo is offline
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Join Date: Jan 2007
Posts: 476
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Quote:
Originally Posted by cheemo View Post
To answer question 1, you would need the fixed level output from the RCA's if you wish to feed the RWA Isabellina to an integrated amp. Your integrated amp will control the volume.

To answer question 2, a variable output from the RW Isabellina will be needed to feed a power amp only. The volume will be controlled off the RW headphone amp (basically a pre-amp) in this setup. No sound degradation will occur.

Edit: ^^^Vinnie KNOWS!

...
Thanks Cheemo for answering my questions .

I see, so basically power amp has no volume control at all? I've never owned a power amp and am ignorant on this. Mine is just a very humble integrated amp.

I need to clarify my concern of the degradation of the signal: What I mean is if the variable output from the RAC of the Isabellina is relatively inferior to the fixed output from the RAC of the Isabellina so that the output from the RCA will be degraded rather than if the output of the headphone amp will be degraded.

I know that it should not degrade the signal. But from my limited knowledge, I've always been told that adding an extra component to an audio circuit will usually degrade the signal. Hence I raise the question. May be Vinnie or other headfiers can verify or falsify what I was told.

Finally, can I feed this variable output to my integrated amp?

Thanks for any inputs.
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Travel Rig: HiFiMan 801-> ES3X
Office Rig:cheap USB-> iRoc-> Black Max-> Lisa-> ES3X
Home Rigs: PC ->Foobar (with ASIO4ALL) -> RSAD Poiema USB-> Isabellina> K701 RAL recabled
PC ->Foobar (with ASIO4ALL) -> cheap USB-> Audiosector DAC >integrated amp -> speaker

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