Mark Levinson (the Harman brand, not the man) has announced its 600 Series of high-end electronics: the No. 626 Dual-Monaural pre-amplifier, the No. 632 Dual-Monaural amplifier and the No. 631 ...

Unlock the gates of Asgard with Schiit Valhalla 3 — a fully modern, OTL/OCL tube headphone amp forged for high-impedance cans and audiophiles who crave that warm, glowing Valhalla magic. Schiit Audio ...

Tube amplifiers tend to fetch top dollar because ... Modeled after the original Supro amps of the 1950s, it boasts a vintage-style, 6L6-equipped, Class A power amp. The Supro Delta King cranks ...

At the extreme budget end of tube audio lie single-tube amplifiers usually using very cheap small-signal pentodes. They’ve appeared here before in various guises, and a fitting addition to those ...

There are plenty of tube amplifiers now being manufactured, with a popular choice being headphone amplifiers that use a tube as a gain stage followed by an op-amp as a buffer with a low impedance ...