Unison Research S2 SEP integrated ($2,000) Italian single-ended pentode amp using EL34/6CA7 tubes to put out a mighty 10W per channel. This amp has remarkable immediacy and clarity and produces sounds from the inside out, unlike the McIntosh amps, which use soundstaging to shape the images.
Current tubes: Shuguang Treasures 6CA7s, NOS Philips 6189W
