Thinking of getting an inexpensive, but reliable, small in size multi-task unit like this for a small room... anyone have any experience with the NAD C715 ($500.) or any other low priced units???

Hello

Would someone be kind enough to shed some light on why my Classe CA-201 power amp only gives me the left channel when the room it's in is cold? I can't say for sure exactly what the temperature is, but it's cold enough to want to get the heater on asap! Typically this is first thing in the morning.

If I leave the amp on for ~20 minutes and fire up a little fan heater to help bring the room temperature up to something a little more hospitable, I get both channels.

All About Diffusion is the latest release in our "See and Hear" video lecture series. Most people have no way to hear what diffusors do or how they sound in a room. So this video explains diffusion in plain terms with no math, then lets you hear an acoustic guitar recorded in close proximity to five different surface types - a QRD diffusor, a poly diffusor, absorption, a bare wall, and a typical bookcase. The video is 16x9 wide-screen, and the audio is at 256 kbps for highly accurate sound.

Sorry I keep having questions pop up, but being new to the hi-fi thing, I can't help it. I always try to google/forum search first, by the way. Sometimes I don't know what terminology to use to frame the question, so that can be problematic. In any case, I appreciate everyone's advice - you've helped tremendously. Seriously. I'd be lost.

Just a head's up to SM, JA etal. - check out the comments below Fred Kaplan's excellent blog about the Sonny Rollins concert - they are all filled with SPAM. I don't know if there is a way for you to prevent this happening but until you do manage to find a way it's very annoying and quite a big turnoff, seriously devaluing the worth of both the blogs and the comments. Check it out:

SPAM filled comments

This issue is amazing. With JI taking us to the new world via by a superb music server, and on the other end, AD takes back to 78's. Mickey has us cleaning LPs in the sink!!!!! KR tells us about new Hi-rez releases that we can hope will work out better than SACD. And then, John Marks reminds us, as only he can, that this is a great time to be an audiophile, regardless of the value of the dollar.

Went to Virgin Mobile music festival in Balto.. 2 days of varied bands. From Dylan to Nine Inch Nails, Andrew Bird to Kanye West, She & Him to Armin Van Buurin. Many highlights (Black Rebel Motorcycle Club, Offspring, Chuck Berry, Sharon Jones & the Dap Kings) and lowlights (Dylan, Lil' Wayne, Jack Johnson).