Incontrovertible double-blind listening tests prove that the original 16-bit/44.1-kHz CD standard yields exactly the same two-channel sound quality as the SACD and DVD-A technologies.

In the September 2007 issue of the Journal of the Audio Engineering Society (Volume 55, Number 9), two veteran audio journalists who aren’t professional engineers, E. Brad Meyer and David R. Moran, present a breakthrough paper that contradicts all previous inputs by the engineering community. They prove beyond a shadow of a doubt, with literally hundreds of double-blind listening tests at matched levels, conducted over a period of more than a year, that the two-channel analog output of a high-end SACD/DVD-A player undergoes no audible change when passed through a 16-bit/44.1-kHz A/D/A processor. That means there’s no audible difference between the original CD standard (“Red Book”) and 24-bit/192-kHz PCM or 1-bit/2.8442-MHz DSD. Read the rest of this entry »

12-Channel 6-Zone Power Amplifier

Amplifier Technologies, Inc., 19528 Ventura Boulevard, #318, Tarzana, CA 91356. Voice: (818) 343-4777. Fax: (818) 343-7444. E-mail: amptech@ix.netcom.com. Web: www.ati-amp.com. AT6012 twelve-channel six-zone power amplifier, $1995.00 (discounts sometimes available). Tested sample owned by The Audio Critic. Read the rest of this entry »

Letters to the Editor are not a feature of this website because in nearly all cases they are trivial and replying to them is a waste of time. The following exchange of messages is an exception.

Hi. I’ve been enjoying reading your publication online. I came across it some time ago and was highly interested, but the (as I believe was the case) steep subscription price was a barrier I could not overcome. With the new blog format and downloadable PDFs I’m glad that I can now enjoy the no-nonsense information that hopefully will help me save tons of money on audio purchases in the future. Read the rest of this entry »

Integrated 5.1 Surround Sound System

Spherex Inc., 3641 McNicoll Avenue, Toronto, Ontario M1X 1G5, Canada. Voice: (416) 321-6211. Fax: (416) 321-1500. Web: www.spherexinc.com. Xbox 5.1 Surround Sound System, $180 to $210 (lowest Internet prices). Tested sample owned by The Audio Critic. Read the rest of this entry »

I keep forgetting that my newer readers outnumber the old-timers and that some of the basic truths about audio that are old hat to me and to the regulars are new and fresh to the recent arrivals. Here is something, therefore, worth repeating for the nth time. Read the rest of this entry »

I have believed for decades now that the only scientifically valid technique of A/B-ing two audio components against each other was a double-blind ABX listening comparison at matched levels. Now Bill Waslo of Liberty Instruments has come up with a new methodology that has the potential of being more widely used because it is simpler, takes less time and less fussing, and is basically automated. Read the rest of this entry »

As always, I am reviewing only those CDs, new or fairly recent, that I found interesting. (Sometimes even a bad performance can be interesting.) Just because they sent me a review copy is insufficient reason for a review in this Web ’zine; there are plenty of other reviewers out there who will oblige. Read the rest of this entry »

I have written about this many times before but I keep forgetting that more of my readers are first-timers than longtime habitués. So, even if you know little or nothing else about audio, be aware of this:

The loudspeaker will determine how your music system sounds. Not the amplifier, not the preamplifier, not the CD or DVD player, nothing but the loudspeaker. Speakers, even the finest, are far less accurate in terms of output compared to input than any of those other components. The speaker will be invariably the weakest link in the chain, the link that limits the quality of sound reproduction. Read the rest of this entry »