Automatic channel switching is something CEDAR never incorporated. Such a feature would have been the next logical step after their Azimuth Corrector. Ted Kendall's The Front End includes some de-clicking circuitry of which, I think, a channel switcher is a part. But I've never used one, so I'm not sure. And, I don't believe he's making them any more. I find most often a carefully balanced mono mix will be less noisy than either channel alone, since a well-tuned mono automatically boosts the music 3 dB over the noise. But I regularly check this (L alone, R alone and L +R) if there is any doubt, just to confirm. Doug Pomeroy POMEROY AUDIO Audio Restoration & Mastering Services 193 Baltic St Brooklyn, NY 11201-6173 (718) 855-2650 [log in to unmask] > Date: Sun, 22 Mar 2009 10:16:40 -0400 > From: Steven Smolian <[log in to unmask]> > Subject: Re: SV: [ARSCLIST] SV: [ARSCLIST] PACKBURN 323A > > The idea of continual switching to the quieter channel of a mono > source is > much different from the way Cedar, SF, etc, operate. > <SNIP> > > Steve Smolian