4 channel stereo receiver

Is that the old quadraphonic deal?

Freakin' kids. A 4 channel receiver is indicating to me that it is in fact an old surround sound receiver. You think surround sound happened with Dolby Surround? Some of the earliest surround receivers go back to the late 60's.

Quadrophonic - Kind of a catch-all name started way back to indicate a system that was more than just two channel. The 4 channel systems could be comprised of Discrete 4 channel sound. Yes girls, 4 DISTINCTLY different channels of sound. It required a 4 channel receiver with discrete capability, a turntable with special cartridge, or a reel to reel machine with 4 discrete channels. There were pre-recorded discrete 4 channel tapes, and the turntables required specially pressed discrete 4 channel vinyl.

Some different systems were called SQ, QS, Matrix, and then my all time favorite, Hafler DynaQuad. 73-75 is too early for Dolby Surround.

More later, I'm at work. By now they don't actually expect me to work if I'm not flying, but I try not to rub it in their faces.

If that is an old KLH 4 channel receiver, and it is affordable, buy it. Those mid-powered KLH's have some of the SWEETEST 2 channel sound you're likely to come across in a receiver. The most powerful KLH was about 30wpc if I remember correctly.

George Grand (of the Jersey Grands)

I know surround sound didn't start with DS but he also didn't state how old it was at the time so I wasn't sure HOW old to guess. Figured I'd throw out another option other than the quadraphonic option already listed.

In my opinion, Hafler DynaQuad was the only halfway realistic surround sound from that era.

DynaQuad did not use the rear channels as discrete, separate channels. They were used as ambience channels, and could really come very close to imitating the original recording venue. The back channels were also dissimilar, and therefore, STEREO. Even Dolby Surround was mono to the back channels, using amplitude and phasing to try and move sounds from side to side in the rear.

Hafler DynaQuad was built into quite a few receivers. KLH and Sherwood immediately come to mind. There was also a stand alone outboard DynaQuad decoder available from Hafler (Dynaco), called The Dynaco Quadaptor. I still have one. It could be added to ANY stereo receiver, or power amp. I think it was recommended for only up to 100 watts, but that didn't stop me from using one with my Carver "150" Receiver (157wpc) to drive 4 Polk RTA 11T's from around 1989-1990. Sounded GREAT! Here's a picture.

George Grand (of the Jersey Grands)

****-end......

At one time in my life, setting in my room with Deep Purple's Machine Head playing on a Dual turntable thru a Marantz 4400 receiver with full quadraphonic sound connected to AR3 speakers was just about the ultimate. Throw in a smuggled bottle of Southern Comfort and the girlfriend of the moment ..... wow ...... I think some residue from the 70's just kicked loose.

It was good though!

just an observation from a new member; it tickles me to see how a thread that started out with a technical question about an unknown product can lead to a 'residue' related 70's flashback ! As an aside, I recall reading somewhere that when Disney was putting "Fantasia" together, old Walt wanted the audience to hear the bee in "Flight of the Bumblebee" flying all around them, not just from the front of the theater, and surround was born.

I'm not familiar with Fantasia. A theater filled with speakers could still get a "surround" type effect by directing a mono signal sequentially to each speaker until the circle had been completed.

your thought of a sequentially rotated mono signal made me curious, so I had to google. Front three channels-main sound track.Two rear channels-seperate spool of film... surround. As for being unfamiliar with Fantasia; if you're a lover of music, not just the gear that reproduces it, drop what you're doing and get ahold of a copy! It's a must see.

I'm sorry, this is COMPLETELY off topic, but may I ask where you got that gorilla alarm clock from? I lost mine years ago and have been desperately trawling the web trying to find at least a picture of it, and this is the first and only one I have found. Would very much appreciate it if you got in contact with me. Thanks!