I used to own VK-150, now VK-75SE. A friend brought over his ARC VT-100 II for me to play while I had the VK-150. BAT is better in every regard, from resolution, transparency, to bass definition. Soundstage is significantly wider and imaging is better as well. VK-75SE takes all the strength to another level, the harmonic richness and coherence are so startling real.
Speaker used is SF Amati, fairly demanding load for a tube amp like B&W Nautilus.
Speaker used is SF Amati, fairly demanding load for a tube amp like B&W Nautilus.