OTL amps with Wilson Watt/Puppy 6s

From everything I've read about OTL's, mating them with a low impedance load like the WATT/Puppy is a no no. I personally wouldn't do it. My WATTS go to LESS than 2 ohms in the critical midrange, even though they are a nominal 4 ohm speaker. You'll get some thin sounding speakers IMHO. They also have some very wild impedance swings with frequency, they are a tough load to follow. OTL's like high impedance speakers. I suggest the Coincident line (10-14 ohm load) as a better match with OTL's, if that is what gets your heart a-pumpin'. Good luck.

I used to have 5.1's. Like I said, they dip to almost a short circuit in the critical midrange, and are VERY resistive in the bass. I've never understood why speaker designers do this kind of stuff. I played with OTLs before, but have moved on to low powered SETs and horns. I find DHT's to have much lower inherent distortion than any other amplification device ever made. Other designs get good measurements with negative feedback. Same goes for horns for speakers. I used to laugh at 'em, now I love 'em (with triodes).

Wow, great idea - using an autoformer to match impedance. I would guess that without these things, OTL's on the WATT Puppies would have a frequency response curve that looked horrible. Thanks for the post!