Short Version: Synergy Diezel Herbert vs. Diezel Herbert mk II - Can the module hang with the amp?
Diezel Herbert mkI vs. Diezel Herbert mkII quick test
Synergy Diezel Herbert Module - Secret Gain Modes!
Diezel Herbert Preamp Pedal vs. Diezel Herbert mk. II - This pedal is nuts!
Synergy Diezel Herbert 2-channel Preamp Module Demo
Module vs. Amp | Synergy vs. Diezel Herbert - Can the module hang with the amp?
Diezel Herbert Synergy Module!
Synergy Diezel Herbert Module
Diezel Herbert mk I vs mk II - Which one sounds better?
Diezel Herbert mk II vs D-Moll - Is the D-Moll really Herberts little brother?
Can Herbert deliver what he promises? Synergy Diezel Herbert Review
Synergy Diezel Herbert tone test
SYNERGY DIEZEL HERBERT Module demo
Diezel Herbert Module by Synergy
SYNERGY DIEZEL Herbert Module
Quick Playthrough on Synergy Diezel Herbert 2-Channel Preamp Module
Synergy Diezel Herbert Module Playthrough or Jam - Room Sounds
SYNERGY HERBERT SOUNDS LARGE THROUGH CABS!
Diezel Herbert MKI vs MKIII - HEAD TO HEAD