Both speaker and ground are isolated floating on the SSR so can be used on balanced amp.
Only ground on logic PSU input and that is optically isolated from speakers.
Only ground on logic PSU input and that is optically isolated from speakers.
This bothers me too.It has been a while since the last post, but maybe someone can answer my question about the TVS diode protecting the MOSFETs. Why do they have the same voltage rating as the MOSFET ? The BSC0402NSAT is rated for 150V, but a TVS like the SMAJ150CA with Vr=150V would not break down before 167V and clamping voltage is even 243V. So how can the diode protect the MOSFET ?