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In Reply to: Re: HELP: HT Pre-amp Choices posted by bnlitin on February 01, 2001 at 12:47:31:
I had a B&K Ref 30. After sending it back for two repairs to get rid of digital noise that was output to the center channel when the preamp is in DIRECT mode(which is not truly direct....the volume is still in digital domain) and in any form of 2 channel mode, I gave up on it. I tried 3 other units on three other systems and they all had this problem. It's a shame about that too, because it does HT so well. For me it was not something I could live with. I did as some others have suggested and got a krell 2 channel preamp with a processor loop and a denon 3801 to pull 5.1 duties.
Follow Ups:
How can a processor have "analog bypass" and 5.1 channel direct inputs (5.1 bypass) and have the volume control in the "digital domain". To control volume in the digital domain, you have to have bits to work with, and there are none in the Reference 30 in direct mode or on the DVD-Audio input. These are self-contradictory.There are items such as the Crystal Semiconductor CS3310, which is a digitally controlled analog volume control. This volume control switches in and out discrete resistors in 0.5dB increments from -95.5dB of attenuation to +31.5dB of gain. Although interfaced digitally, it operates purely in the analog domain for volume control.
Care to cite your source of information for the comment that the volume control is in the digital domain?
Regards,
Sorry kotches, I must have misunderstood something.
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