A 16 ohm tap means that ALL of the OPT's winding (on the output side) is in use. An 8 ohm tap means that 1/2 of the OPT's winding is in use. A 4 ohm tap means that 1/4 of the OPT's winding is in use. This directly affects damping (control) of the speaker's motion.

Ohm load for SET Amps

I've always heard/read/searched that 8-ohm or higher loads are ideal for tube amps. Speakers are "tube friendly". I've never really understood why that is the case. Could anyone with much more experience/wisdom than myself (most, I'd imagine) explain why this is the case? What would happen if one were to use 4-ohm speakers with a SET amp?

While I have some foundation of physics and electronics, I'm far from an electrical engineer.

The main reason I ask is because I have a pair of 845 SET's, and would like to consider speakers rated at 4-ohm. My 845's have 4, 8, 16 ohm taps.

Thanks for any help!

While I have some foundation of physics and electronics, I'm far from an electrical engineer.

The main reason I ask is because I have a pair of 845 SET's, and would like to consider speakers rated at 4-ohm. My 845's have 4, 8, 16 ohm taps.

Thanks for any help!

- ...
- 10 posts total

- 10 posts total