Hiwatt SE212115CF SUPER-HI

The SUPER-HI mixes voicings rather than sizes for their own sake: two 12-inch Hiwatt Celestion Vintage 30-12s handle the guitar range and a 15-inch Fane Sovereign 400-15 sits under them for the bottom.

Three inputs keep the sections separate. One drives the 2x12, one drives the 1x15, and the third runs both in parallel from a single amplifier, so the cabinet works as a full-range box or as two cabinets that happen to share a shell. Built from 18mm birch ply in the Hiwatt Custom Shops.

Configuration	2x12 and 1x15 full-range guitar cabinet
12-inch Speakers	2 x Hiwatt Celestion Vintage 30-12
15-inch Speaker	Hiwatt Fane Sovereign 400-15, 400 W
Inputs	1/4" Mono Input (1x15" Only); 1/4" Mono Input (2x12" Only); 1/4" Mono Input (2x12" & 1x15" in Parallel)
Routing	Separate 2x12 and 1x15 inputs, plus a parallel input for both
Construction	18mm birch ply
Build	Hand-wired and tested in the Hiwatt Custom Shops