Dennis Had Inspire Amps

[Breakdown7]

Originally Posted by FloridaBoy

The 6SL7 has more gain. I'm not sure if matched pairs are required.

I didn't realize they had more gain. Thanks for mentioning.

It's interesting Dennis is moving over to 6550's in the Universal mono blocks. In my PSE amp some of my favorite output tubes are NOS Winged C 6550's. It's too bad they are no longer making them in the Svetlana plant. The Tung-Sol 6550 looks promising. Never heard those. All this talk about Universal amps has me curious what they are about.