A few people here have mentioned the Berning ZOTL amps. They are now produced by a company called Linear Tube Audio. LTA is able to build these amps at a higher volume than David could by himself and the price is lower. My ZOTL40 with EL34's sounds spectacular, highly recommended.
OTL amplifiers
Can anyone explain to me, in layman's terms, the advantages or disadvantages of OTL amplifiers? I have heard a lot about them, but have not listened to any to date. I am really a tube fan and want to reach tube nirvana and don't know if OTL is the way to go. Are they suitable for all types of music? Any information would be greatly appreciated. Thanks.