This amp design uses a plate voltage of 12, although the 12AU7 can handle up to about 330. Since the 12AU7 is of the Twin Triode variety, one tube can be used to amplify both a left and ...

[Marcel]’s low-voltage tube amp design might spark your interest. The design operates with a B+ (plate) voltage of only 40v, making it less intimidating and dangerous than many other amps that ...

Landreth's D25 might be a single-channel affair with old-school aesthetics but with six onboard virtual cabs, MIDI ...

One of the great pioneers of US high-end tube amps, Sampson co-founded Matchless and had recently returned to Bad Cat after a two-decade absence ...

Karma-AV is to distribute Unison Research’s high-performance valve-based Hi-Fi separates in the UK and Ireland. The Italian manufacturer’s line-up includes Class A pre/power and phono amplification ...

with rounded edges and a sleek design available in either black or red. One big change is the addition of two JAN6418 vacuum tubes, with the M8T featuring both a tube amp and a transistor-based ...