Based on my long term experience in audio, lots of characters in this field of endeavor. In early days easy for me to take offense at perceived slights, over time I learned to listen and react in a curious manner. Knowledgeable and courteous responses to seemingly arrogant behavior sometimes brings these guys down off high horse and into interesting discussions.
As for Upscale, I have Prima Luna Dialogue Four amp diy mods Takman resistors and various boutique caps, while not my favorite amp, mostly because push pull vs. SET, holds its own against my Art Audio Carissa Sig. Coincident Turbo 845 and custom 300B monoblocks. Nice build quality, mostly point to point. I had issue with bad power tube blew out some resistors on bias board, Upscale head tech worked with me, sent out replacement board pronto. Also, purchased a Musical Fidelity integrated from them, great deal. Never had any issues with anyone I've interfaced with there.
As for Upscale, I have Prima Luna Dialogue Four amp diy mods Takman resistors and various boutique caps, while not my favorite amp, mostly because push pull vs. SET, holds its own against my Art Audio Carissa Sig. Coincident Turbo 845 and custom 300B monoblocks. Nice build quality, mostly point to point. I had issue with bad power tube blew out some resistors on bias board, Upscale head tech worked with me, sent out replacement board pronto. Also, purchased a Musical Fidelity integrated from them, great deal. Never had any issues with anyone I've interfaced with there.