Nelson Pass First Watt amp F1

I heard one at the T.H.E. Show a couple of weeks ago, in a room with Lowther Academy speakers, run with an analog(VPI) front end.

Frankly, I wasn't impressed, and apparently neither was the exhibitor, because the next time I went back into the room, it was gone, and replaced with an Exemplar Audio 300B amp. This 300B amp sounded quite a bit better than the Pass First Watt amp did.

I know that the show environment is not the best way to listen to the true performance of many things, but in this case it was easy to spot the difference of the amp when it was switched out to a 300B amp, and the rest of the system remained the same. Not even close.

I dunno.

The guy told me that he got it from Nelson, and I would have expected that everything needed would have been with it.

The exhibit was from the maker of the speaker system, so I don't think that anything would have been left out internally, or externally, because he was making the stuff, and he sounded from his conversation to know Nelson Pass.

But, to answer your question directly, I don't know for sure if there was any network used or not.

Trelja, since it is rated 10 watts per channel, I think it is limited to higher efficiency designs.

Yes, that was the room.
I have to say that I was just referring to the amp comparison in my previous post, and the speakers were an excellent iteration of the Lowther Academy design.
Extremely good construction quality, and beautifully finished.
I'd highly recommend those to anyone interested in one of the classic Lowther designs.