My current view is that looking for a "best measuring" tube power amp is, from practical POV, a pointless pursuit.
Best, rather, to look for a SOTA solid state amp with ultra-low distortion. If you want a little color, warmth, body, or "holographic" imaging, put a tube preamp upstream -- or maybe midstream because, IMO, your upstream DAC should also be ultra-low distortion
Best, rather, to look for a SOTA solid state amp with ultra-low distortion. If you want a little color, warmth, body, or "holographic" imaging, put a tube preamp upstream -- or maybe midstream because, IMO, your upstream DAC should also be ultra-low distortion