Zero-autoformers

[GregLett]

Zero-autoformers and ZERO-boxes by paul speltz

Is anyone here using the above transformer, or tried it?

Thanks.

[Crimson]

I've used a pair of the naked autoformers. I used them to raise the 4 ohm nominal impedance (83 db sensitivity) of a pair of speakers to 16 ohms when being driven by a pair of 200W tubed monoblocks. What was readily apparent was the decrease in bass bloat at louder volumes. I haven't tried them with SS amps.

[GregLett]

Thanks. I really want tubes, so I'm going to try a pair with tube amps and my Logans.