
Zerrer Manual
Explanation of knobs and switches
The upper row of knobs controls channel 1 while the lower row controls channel 2.
Gain: Adjustment of the distortion amount.
Treble, Middle, Bass: Equalization of each channel.
Volume: Loudness adjustment for each channel.
Presence, Deep: Overall treble and bass adjustment ( power amp simulation).
Turn it down for use with Diezel power amps !
Master: Overall loudness control.
Aux Volume A/B: Loudness control for each side of the aux in device like MP3 players or cd players.
Bypass/Mute: Switches the unit on mute or bypasses the input to the „Guitar Amp In“ jack as a
thru bypass.
Channel Select: Toggles between channel 1 and channel 2.

Explanation of the jacks on the rear side
Guitar In: Input for the guitar using a standard guitar cable.
To Guitar Amp In: Output of the pedal into the front end of an guitar amplifier. Please adjust the guitar
amplifier for proper sound results.
Send: Use this jack to connect the input of an effect unit. The output of the effect unit should
be connected to a guitar power amp. Or use the jack to connect it directly to a guitar
power amp with guitar speaker cabinet.
Return A/B: Connect the outputs of your effect unit for using the speaker cab simulation on the
Zerrer unit.
Compensated Out: Output with speaker cab simulation to connect with your console, hifi or DAW.
Stereo Aux In: Stereo jack for external units like (MP3 Player, CD Player, Laptop). Signal flow to the ear
phones.
Stereo Headphones: Stereo jack for headphones.
Ext. Switching: Jack to connect an external footswitch or midi switcher.
Power Supply: Connect the external power supply providing 15V AC / 500mA.

Safety warnings
We would like to stress the importance of the following points, for reasons of your personal safety, product longevity
and product liability.
Do not use the pedal in or near wet locations
Do not store the pedal in damp or wet locations
Do not operate the pedal on voltages other than those designated on the rear panel of the unit.
Do not open the panels of the pedal. No user serviceable parts inside. Do not use the pedal for anything other than its
designed purpose: To Amplify Electric Guitar Signals
Only use the power supply which shipped with the pedal.
Warranty
5 years to the original owner with proof of purchase. ALL REPAIR WORK MUST BE DONE BY A DIEZEL CERTIFIED
TECHNICIAN. Not following this procedure will VOID WARRANTY. This will ensure the the original owner and us at
Diezel Amplification that the work is done correctly and that there is knowledge of what is going on out there with
each amp or pedal. To any second owners or more, there is no warranty coverage nor is a warranty transferable.
(This policy is no different then before). Of course we at Diezel are happy to serve people who purchase their
amplifier/pedal on the used market should your amp ever need servicing. Parts and labor charges will occur for our
work on your amplifier as usual.
Diezel GmbH
Donaustrasse 5
89407 Dillingen
Germany
Email: service (at) diezelamplification (dot) com
Homepage: www.diezelamplification.com
Steuernummer: 1115212440172570441
USt.ID: DE153734466
Geschäftsführer Peter Diezel und Peter Stapfer
Handelsregister Augsburg / HRB 13015