I'll chime in very briefly, as Charles and I both run Coincident speakers. Charles- a local dealer friend lent me a very nice all piano black lacquer amp from Melody. It's a 2A3 integrated (uses 4 2A3's for output, and there is also a 101d DHT tube in the circuit as well!). It's super heavy with some very beefy transformers. This thing was so quiet as well. Shockingly good (even on the big PRE's Charles), and for ~ $1,500 used- I am contemplating for the third (8' x 10') bedroom system...
Best value Set amp for under $1500 used is ok.
Looking to power some large horn speakers and replace my SS Audio Research upgraded LS10 power amp because it needs service and I am not ready to service this unit for a variety of reasons not worth discussing here.
Specs for the Viking Acoustics L’Instrument speakers
are:
Sensitivity: 98 db
Time Alignment: Drivers time-aligned mechanically and electrically.
Bandwidth: 18Hz - 19,000 (18Hz - 50kHz with optional super tweeter)
I have tried 845/805/KT88/120 in non set builds. I’d like to try a 300B or similar set design for these without burning the budget. I’m based in Australia and prefer to use 240V capable amps.