Detail 01
Three independent channels with separate EQs
Clean, Crunch, and Lead each have their own EQ section.

Independent shopping perspective
Diezel’s 180-watt Herbert MKIII is a tube amp head with independent Clean, Crunch, and Lead channels, each with its own EQ. The clean channel offers volume, treble, middle, bass, and Mid Cut control; channel two uses a dual-voice +/- toggle; channel three is the high-gain channel. Two switchable master volumes make it possible to keep separate overall volume settings ready. MIDI programmability, patch store/mute functions, and parallel plus serial effects loops suit rigs that need repeatable switching and routing.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Clean, Crunch, and Lead each have their own EQ section.
Detail 02
Two overall volume settings can be switched between.
Detail 03
The head provides one loop of each type.
Detail 04
A MIDI foot controller can switch channels and engage channel two's +/- control.
Detail 05
The power amp uses six JJ KT77 tubes.
Detail 06
These are the listed weight and dimensions for planning transport and placement.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
It has three independent channels: Clean, Crunch, and Lead.
It includes one parallel effects loop and one serial effects loop.
Yes. Master Volume 1 and Master Volume 2 are independent and switchable.
Yes. Its +/- switch is MIDI-programmable, and MIDI can switch the amp's channels.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.