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Synergy Diezel Herbert Preamp Module

Written by

Chris Toft

The Synergy Diezel Herbert Preamp Module gives you access to the same searing guitar tones that have made Diezel one of the most respected names in amplification. Simply slide the preamp into your Synergy hardware of choice; either the classic amp, desktop or rackmount configurations and dial in the legendary valve characteristics squeezed into the module.

The original Diezel Herbert amplifier is famous for it's ultra-tight bottom end and percussive attack, making it a popular choice for heavier genres of music. Personally designed by Peter Diezel himself, the Herbert Preamp ensures your tone sings with all the authenticity and character of it's 180 watt behemoth namesake amplifier!

Diezel Herbert Module by Synergy


The scaled-down two channel design boasts independent volume, gain and mid-cut controls for both channels, with a global 3-band EQ for accurate tone shaping. The Herbert can be used like a traditional two channel amplifier with one channel being clean and the other dirty, allowing you to fine tune separate rhythm and leads tones.

The three-position Cathode Select switch allows you to configure the input tube bass response to match the original circuit of the selected module. The different positions will affect the module's feel and tightness so it's worth experimenting with for further tone shaping.

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2 In Stock

Order now for delivery to you on Wednesday, 1 December 2021  

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