Hello to Visitors

Welcome!!!!  Glad you found the place.  Quad is groovy. This is the “sticky” page that should always appear first. This is the third niche in the Web this site has appeared at. Past locations disappeared for reasons beyond my control.

I will start with an index to the many separate blog entries that comprise the “whole” that makes up this one among many sites covering quad / quadraphonic / quadrasonic / 4-channel audio etc.

The index below follows the format the blog is based upon; the newest entries appear first and the oldest, the ones written first, appear at the end of the index. This format should not cause confusion.

Deported Radio

Vintage Stereo Restorations

A new-found joy of the 8-track

Links

Peeking at the Past

Stuff I Like From Bygone Days

Q Surround

Update

Quad’s Early Days

SQ

QS aka RM

CD-4

More CD-4

Assorted Stuff

Software

Rare Stuff

Quad 8-track tape Q8s

Stuff and Stuff

Various Stuff

Cai Campbell

Tom Fornof Handy Info

QuadCasting

Several Pages of Quad Bob

Quad Bob

Quad Bob

Quad Jukeboxes

SRS Circle Surround

Several Posts with Steve Wudtke Info

Wudtke Wit & Wisdom

Wudtke Wit & Wisdom

Wudtke Wit & Wisdom

Wudtke Wit & Wisdom

Wudtke Wit & Wisdom

WordPress allows its blog users to view where blog visitors are visiting from.

This is done by the country of origin but no more than that.

Here are where some of our visitors originate:

Country

Afghanistan
Albania
Algeria
Argentina
Australia
Austria
Azerbaijan
Bangladesh
Belgium
Brazil
Britain
Bulgaria
Canada
Chad
Chile
Colombia
Costa Rica
Croatia
Cyprus
Czech Republic
Denmark
Ecuador
Egypt
El Salvador
Estonia
European Union (not a country but a region but the visit statistics includes the EU)
Finland
France
Georgia
Germany
Ghana
Greece
Greenland
Guadeloupe
Haiti
Hong Kong (great meal at the China Fleet Club. Yum!!!)
Hungary
Iceland
India
Indonesia (patrolled the seas in the area to run off pirates)
Ireland
Isle of Man
Israel
Italy
Iraq
Jersey (likely Great Britain’s island)
Japan  (Great times in the Ginza!!!)
Kazakhstan
Kenya (YAY!!!  Kenya joined the crowd in March, 2014)
Korea  (Chin Hae was a pretty place)
Kuwait
Latvia
Lebanon
Lithuania
Luxembourg
Macedonia
Malaysia
Malta
Mexico  (of the several foreign countries I have been to Mexico is the only place I had to fight off attackers– 3 of them.)
Moldova  (Hello to everybody in your part of the planet!!!)
Mongolia (Genghis Kahn, a mighty warrior of yore!!!)
Morocco
Netherlands (some of my ancestors from there…Vikings!!)
Nepal
New Zealand  (where’s Old Zealand?)
Nicaragua
Nigeria
Norway
Oman
Pakistan
Papua New Guinea
Peru
Poland
Portugal
Puerto Rico
Romania
Russia
Saudi Arabia
Senegal
Serbia
Singapore (A very modern place with lots of intelligent and industrious folks)
Slovakia
Slovenia
South Africa
Spain
Sri Lanka
Sweden
Switzerland
Taiwan (Keelung, Taipei and environs were awesome!!!!)
Tanzania
Thailand (Pattya Beach was groovy!!! It “sticks” in my mind.)
Togo
Tunisia
Uganda
Ukraine
United Arab Emirates
United States
Uruguay
Uzbekistan
Venezuela
Viet Nam (up the Saigon River but turned around after the NVA took control of Saigon. A proud brave people and I hope our countries and people will be friends forever!!!)
Zimbabwe

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Feel free to leave a comment, share some information or leave an opinion!!!

I am a resident of the USA with two military tours to several Asian countries bordering the Pacific Ocean with some bordering the South China Sea and some a little bit west of the Pacific Ocean and closer to the Indian Ocean.

I have a commitment to myself to offer my OPINION that the USA federal government does NOT truly represent the USA citizen population.

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Q Surround

QSound is a global supplier of audio software technology for mobile devices, headphones, Bluetooth devices, televisions, stereo PC multimedia equipment and other consumer electronics. QSound’s proprietary audio algorithms truly deliver a fuller, more natural and immersive audio experience – users hear the difference!!

Q-Sound home page—-> Here

“QSound 3D Positional Audio Demos “–> Here

 

There are other new and not-so-new devices, softwares, units with those circuits or programs and this and that an et cetera or two or more.

I encourage those in the know to leave a comment about those newer and really new ways and means to improve an audio field or sound or presence or whatever.

This blog is aimed at audio.

It doesn’t matter if the audio is meant to be video-related.

I would prefer if the audio devices mentioned allowed music from any source to be played; from FM radio to a receiver’s output with sources varying from 8-track or reel-to-reel or cassette decks.

Or from CD or DVD players or, if you are using vinyl– from turntables.

As with muscle car 1/4-mile racing; run whatcha’ brung.

Okay… share your opinion and/or knowledge.

Thanks!!!!

Update

This site exists to assist with hopefully enlightening the curious to the short-lived era of Quad, quadraphonic surround sound from a time before the immense expansion of home theater.

Quad was geared towards home audio, for music listening.

It was a different era as those of us around and aware way back then are well-aware of.

Generally, folks viewed music and audio equipment differently in those days.

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Quad’s Early Days

Quad hit the marketplace in a big way in 1971. Vanguard Records was one of the early players with their 4-channel reel-to-reel tape. Articles in various magazines from the period of around 1969 to 1970 mention quad sound from reel-to-reel tape. Quad from vinyl records and FM broadcasts is mentioned as being possible in the future.

Quad on tape is usually a discrete-type quad. True discrete quad uses 4 individual audio sources from input to output.

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SQ

STEREO QUADRAPHONIC

(updated March 2014. scroll to bottom for new addition to this post)

SQ was created by the CBS Technology Center and was made available to the public in April 1971. Rear channel information was placed on a vinyl record by adding “…double helical groove modulations… alongside . . .vectored modulations…” that produced the sound for the front channels. The SQ decoder sensed the different signals and did its best to send the appropriate sound to the correct speaker.

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QS aka RM

QUADRAPHONIC STEREO

Sansui introduced the QS quad encode/decode system in February 1972. Similar to SQ and EV-4, QS can decode any matrix-type quad encoded record along with synthesizing quad from a stereo source. Often, QS is shown on quad equipment with the designation “RM.” This stands for Regular Matrix. Supposedly, RM is the QS type without logic in the decoder.

I think Sansui’s grooviest invention was the famous Vario-Matrix circuitry. Various audio magazines described this circuitry in a most confusing manner. Some described Vario-Matrix as a “logic circuit” that improves channel separation. Another writer said it was specifically designed to synthesize a stereo source into a quadraphonic output. Whatever it was intended to do, it sure does sound good. Almost everything I play; FM, Compact Discs, records, whether it’s a quad or stereo version, is passed through my Vario-Matrix circuitry. Stereo sounds dull, lifeless, and boring compared to the sound of my quad receiver pumping out the tunes through its Vario-Matrix decoder.

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CD-4

CD-4

This is the “odd man out” in the quad world. Extremely ‘fine’ grooves were etched onto the vinyl record to provide frequencies between 35,000 and 50,000 hertz. The CD-4 demodulator sensed these high frequencies then converted them to a range of around 100 to 15,000 hertz. These frequencies were then sent to the amplifier and on to the rear channels.

A matrix decoder can not sense the high frequencies on a CD-4 record, it can only synthesize the stereo output of a CD-4 QuadraDisc LP.

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