There have been very encouraging comments regarding the Willsenton R 300 which is a 300b SET integrated amplifier. I have not heard it but owner feedback is consistently quite positive. It falls within your stated budget.
Charles
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.