Hiwatt SUPER-HI 50 Head

The Super-Hi 50 brings the Custom Super-Hi circuit down to a lower price without changing the valves that make it work: EL34s, for 50 watts of output that does not break up or sag when the preamp is doing the distorting.

Mike Fortin took the DR504 chassis and hot-rodded it, and the result found its way to Josh Elmore, Brian Fallon and Ben McLeod. Two channels of cascading valve gain with a channel-independent Super-Hi boost give four levels of overdrive, and a passive effects loop sits ahead of the power section so delays and modulation stay clean. Oversized transformers hold the bottom end together.

Wattage	50W
Channels	Gain One, Gain Two
Input	1/4" Mono Input
Outputs	2 x 1/4" Speaker, 1/4" Effects Loop Send
Preamp Valves	4 x ECC83 (12AX7)
Output Valves	2 x EL34
Controls	Gain One; Gain Two; Bass; Middle; Treble; Presence; Depth (Resonance); Master One; Master Two; Super-Hi Boost (channel independent)
Boost	Channel-independent Super-Hi boost
Footswitch	FS203-LJ-SUPER-HI, channel and Super-Hi boost
Transformers	Oversized for extra low end and output before saturation
Construction	Birch ply