Dynaquad, or DY, was a matrix decoder 4-channel quadraphonic sound system developed by Dynaco in 1969.[1][2][3]
The system originally had four speakers that were arranged in a diamond shape (centre-front, centre-left, centre-rear, centre-right).[4][5] Initially (first available in 1969 with th Dynaco SCA-80Q amplifier [6]), it was introduced as a derived (2:2:4) four channel "decoding" system based on the Hafler circuit, where the back channels played ambient sounds recovered from standard stereo sounds.[7] As such it wasn't used initially used as an encoding method (a similar approach was used on the Electrovoice Stereo-4 system).[8]
- ^ Film Score Monthly. Lukas Kendall. 1995. p. 23.
- ^ High Fidelity. Audiocom. July 1976. p. 10.
- ^ Holmes, Thom (2013-10-18). The Routledge Guide to Music Technology. Routledge. p. 6. ISBN 978-1-135-47780-6.
- ^ "Surround speaker placement: here's how". technical-tip news portal.
- ^ Ziemer, Tim (August 6, 2019). Psychoacoustic Music Sound Field Synthesis: Creating Spaciousness for Composition, Performance, Acoustics and Perception. Springer. ISBN 9783030230333 – via Google Books.
- ^ "Dynaco SCA-80 Stereo Control Amplifier Component Info". October 7, 2018. Archived from the original on 2018-10-07.
- ^ Schwann-1, Record & Tape Guide. ABC Schwann Publications. 1972. p. 26.
- ^ Traiman, Stephen (November 16, 1974). "Little "Q" Plugged in Goody Store Ads". Billboard. p. 40.