The Real Sound Of The Button Down Brass

"This quadraphonic record was made using the "SANSUI QS" matrix encoder. Use of this encoding process permits the production of a compatible recording that contains 2-channel stereo and 4-channel quadraphonic programme information, without loss in frequency response, dynamic range etc. The compatibility feature of this recording process makes this type of record a good investment for the future. When this record is played through your present stereo system it will be reproduced in improved full fidelity 2-channel stereo sound. With the addition of a decoding amplifier, and two extra speakers to your present stereo system, it will permit you to reproduce the full quadraphonic information on this record."