SQ Matrix Recordings

by **flavio81** » 16 Feb 2011 16:37

Whitneyville wrote:Flavio, I own a couple of dozen CD-4 LP's and they don't play without the decoder box. "Days of Future Passed" and "Dark Side of the Moon" are clearly marked Channel Discreet -4. I can upload a sample of what they sound like without the decoder box switched in. Quad 4 LP's, from Japan must be played on my Eico-Kit decoder CD-4 setting,

You should post about this on the http://www.quadraphonicquad.com forums, they will be even more puzzled than me with this info. Plus you can sell them there, if you don't want them anymore!!

by **Whitneyville** » 17 Feb 2011 09:08

Oh no! I won't part with any of my 4-channel LP's! On another "Quad" site, several of us have discovered some "strange" things. The Telefunken and DG PX "bring-backs" from Germany have required modified "black boxes" for the best sound. "Quad" was really such a "flash-in-the-pan", I'm not certain if "standards" apply to them. I do know the Columbia US "SQ" discs are different than Columbia of Japan (Denon) discs(QS), and Japan Victor Corp "Quads" are far better than RCA Victor's few (and terrible) attempts. My 15IPS four-channel "Dark Side of the Moon" (I paid an obscene amount for a German version) blows away the LP in every way. It's #983 of 5000, and I got it in '79 or '80. "Great Gig in the Sky" shows off what a creative engineer could do with 4 channel sound. It's literally almost hypnotic.

by **flavio81** » 17 Feb 2011 16:20

Whitneyville wrote:Oh no! I won't part with any of my 4-channel LP's! On another "Quad" site, several of us have discovered some "strange" things. The Telefunken and DG PX "bring-backs" from Germany have required modified "black boxes" for the best sound.

What is a "PX bring-back"?
As far as i know, DGG never released a quad record.

by **pivot** » 17 Feb 2011 17:07

flavio81 wrote:
Whitneyville wrote:Oh no! I won't part with any of my 4-channel LP's! On another "Quad" site, several of us have discovered some "strange" things. The Telefunken and DG PX "bring-backs" from Germany have required modified "black boxes" for the best sound.

What is a "PX bring-back"?
As far as i know, DGG never released a quad record.

According to this site:

http://members.cox.net/surround/quaddisc/quadclas.htm

Only one DG test pressing in CD-4 and no Telefunken quad. If you have more info on real quad discs from these labels it would be interesting.

"Real" quad please not just stereo titles that sound interesting pushed through a matrix decoder.

by **Whitneyville** » 19 Feb 2011 06:10

SOR-RY! Not Telefunken. EMI Germany. "PX bring-backs" are like my TEAC R-T-R deck. The brother of the guy I worked with for about 10 years brought it back from Germany where he bought it at the PX while in the Air Force. I have both pairs of "50Hz and 60Hz" pulleys. The TEAC is really nice in that the pulleys have a "strobe wheel" on them and all your need is a little neon "voltage test light" to dial it in perfectly. I still have my 1972 Sankyo (yeah the company that made auto A/C compressors) integrated amp bought at the PX in SE Asia, and I use it for my "rear channel amp". I put new electrolytics into it close to a dozen years ago. Identical to the Radio Shack integrated amp (SA-1000?) from the same era with the dual "Glide Path" slider pots for volume and the "perfect loudness" control for the "loudness compensation" and I wish every amp had the same system for "loudness". GI's brought lots of brands home with them (Craig, Concord, Nagi, and the German brands like Grundig and Blaupunkt), and other "obscure" brands in the US. Most of it was good equipment, just nobody had heard of it here. LOTS of Dual turntables were purchased by GI's in "West" Germany and brought home, also ELAC Miracords. Nam Vets are starting to drop like flies, and gold mines of LP's, tapes and equipment show up when the relatives dispose of their stuff.