• Disclaimer: This Vendor's Forum is a paid-for commercial area. Unlike the rest of diyAudio, the Vendor has complete control of what may or may not be posted in this forum. If you wish to discuss technical matters outside the bounds of what is permitted by the Vendor, please use the non-commercial areas of diyAudio to do so.

SSE cathode feedback

Hi All,

I am not building an SSE but have an amplifier which uses a similar cathode feedback methodology with the CFB taken directly from the OPT speaker windings. I hope it's ok to ask this question here as this seems to be a fairly unusual set up and I have not seen it elsewhere. The question is also relevant to future SSE builders.

Say I have 4, 8 & 16 ohm taps on the output transformer but am using 8 ohm speakers.

If I wanted the most feedback possible (lowest THD), could I use the 16 ohm tap for the CFB connection while still using the 8ohm tap for the speaker?

Presumably this would provide double the feedback, albeit not directly from the speaker terminals. And volume would be reduced also of course.

Any issues with this configuration, other than the lower output power?

Many thanks,

Greg