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In Reply to: RE: Lpad or autoformer posted by henryrancourt@att.net on August 13, 2016 at 19:49:54
Even though the variable output of the OPPO is 32-bit (considered bit perfect), there is no reason to take your Audible Illusions preamplifier out of the signal path. Plugging a source component directly into the input jacks of a power amplifier is not always superior, not unlike that of a passive preamp vs. an active preamplifier. I think you would find connecting the OPPO to the Audible Illusions preamplifier while still using the variable output control of the OPPO may be superior sounding. YMMV
Follow Ups:
Thanks for the reply. I posted earlier today that that is exactly what I've decided to do.
I mentioned that all components are in a 2nd floor closet and the OPPO and other three source components will continue to be connected to the AI preamp, which is connected to an amp in the same closet.
In the post I also mentioned the amp is connected to speakers on the 2nd and 1st floor. For convenience, when listening to the 1st floor speakers, I'll use the OPPO remote volume control. The AI preamp doesn't have remote control.
Since the Oppo has a VC you need to try it direct to the power amp. Its so easy to do and I guarantee it will sound different, you may or may not like better but you need to try it. Never decide based on anything but comparing and I lovevtubes but I'd still try both for sure.
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
I've learned that it will sound great directly connected to my amp. I've also learned that two sources connected to the same amp via Y splitters, even with one turned off, will produce less than optimal sound, have volume problems and usually weak bass response.
Since I only have one amp and three other sources connected to an Audible Illusions preamp, I've decided to connect the OPPO to the AI preamp. When listening to the OPPO I will use it's remote volume control for convenience. When listening to the any of the other three sources I will have to use the volume knobs on the AI preamp. It does not have remote control capability.
Thanks,
henry
I would expect connecting the OPPO to your Audible Illusions preamplifier while using the OPPO remote volume control to be the best option. I recommend finding the sweet spot in terms of where to set the volume knob of the Audible Illusions preamplifier when using the OPPO remote volume control. When I use a source component with a remote volume control, I set the default volume level of my preamplifier at the 11 o'clock position, which allows enough gain for the remote volume control to have a wide-range of remote volume control settings, and with enough headroom for program material with unusually low signal levels to be increased via the remote control when needed.
I'm with you on that. The OPPO has been connected to the AI preamp for at least 4 years and your description is how I've used it.
I just thought, for a very short while, that maybe connecting the OPPO and preamp directly might provide some benefit. It only took about two days to learn that was not a good idea. I appreciate your responses.
Excellent clarification; the set-up should be smooth-sailing...
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