Traynor YBA-1 Bass Master 40-Watt Guitar / Bass Amp Head Late 1960s

This amplifier has been recently serviced and retubed, and is in perfect working order.

The YBA-1 is a 40-watt head featuring two EL34B tubes, three 12AX7WA tubes and a solid-state rectifier. The amp has a two-channel design with individual volume controls for channels I and II. The channels share treble, bass and low- and high-range expander controls, and the amp has no master volume or channel switching.

The YBA-1’s extremely simple circuit delivers fat, bold and ballsy tone that preserves a guitar’s character and provides exceptionally responsive dynamics. Even at the 2.5-watt setting, the YBA-1 sounds like a big amp, and played side by side with a modern 15- or 30-watt micro amp, it reveals the deficiencies of those designs, even though it’s not much bigger than many micro heads.