Here's what Seymour Duncan say about the Diamondhead:
If you’ve gone through a pile of overdrives, distortions, and boost pedals searching for that quintessential 80’s metal or hard rock tone and haven’t been satisfied, make Diamondhead the heart of your rig. Versatile enough to handle any covers set, precise enough to surgically dial in your own tone - it captures the rock ‘n’ roll spirit of a high gain head pushed to the edge.
Diamondhead captures the power and versatility of that era-defining rig in a package that will find a space on any pedalboard. Whether you’re running it into a clean pedal platform amp or into the frontend of an overdriven tube amp, the Diamondhead provides the flexibility and tonal clarity to authentically capture the sound that defined an era.
It all starts with the drive - from breathy and raw medium gain sounds to screaming high-gain harmonics, Diamondhead is deep and threedimensional, with clarity and touch response. Three powerful active EQ controls maximize the potential of the gain section. A tightly defined bass control boosts and cuts at 80 Hz with surgical precision, making the low end huge, but never muddy.
A broader mid-range control set right at 800 Hz allows for massive scooped chunk, hyper aggressive modern attack and everything in between. The Treble control set at 6 kHz adds sizzle, cut, and attack. The SAT Switch (based on our 805 Overdrive) adds a 24 dB pre-gain boost that tightens up the low end for more aggressive and defined attack. Subtly rolling off lows and highs it allows the mid-range to cut through creating chewy, harmonic saturation.
Independent from the Drive section, the Boost (activated with the left footswitch) offers 0 to 15 dB of gain and can be used as a lead boost or to push an amp on the edge into overdrive. Try using it with a slightly dirty amp as the first gain stage and adding the Drive section for your highest gain sounds.
Diamondhead also shines as a pre-amp. By running it into the effects return of your tube amp, or in front of the PowerStage power amps you’ll be rewarded with a hot-rodded high gain amp tone with body, bite and character.