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Dynaco QD-1


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Dynaco QD-1


The Dynaco QD-1 Quadaptor serves as a junction box between the outputs of a conventional two channel stereo amplifier or receiver, and four loudspeaker systems; it is a passive device requiring no AC adaptor.

The Quadaptor provides the simple but essential circuitry to recover four separate signal components from two stereo channels utilising the Dynaquad system.

It facilitates accurate electrical balance in the system to attain maximum separation.

It also provides for listening to the front speakers alone as conventional two-channel stereo.


instruction/owners manual   English -

instruction/owners manual (imp scan)  English - Mark.ogura

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What a wonderful surprise to find an owner's manual for a 40 year old piece of gear and a schematic as well. I am very happy and excited with HIFI ENGINE.

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