Anyone ever use a Dynaco Quadadapter QDP-i


I just picked up one of these old Quadraphonic simulators and I wonder how best to use it. How much power can it handle? How does it effect  impedance when using four speakers? How much does it degrade performance and does it matter?

rpfef

Showing 1 response by mrdecibel

This is known as the Hafler circuit, and there are many articles about the circuit, and the man, David Hafler, available to ponder.