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Herbert Diezel User Manual

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Diezel User Manual for the Herbert Amplifier
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Herbert Diezel Specifications

General IconGeneral
Channels4
MIDIYes
Power100 Watts
FootswitchIncluded
Effects LoopYes, Series/Parallel

Summary

Chapter One: Safety and Warranty

1.1 Safety Warnings

Details critical safety precautions for operating and handling the amplifier to prevent personal injury and product damage.

Chapter Two: Using Your Herbert

2.1 Mains Connections, Power and Standby

Covers initial setup, power connection, warm-up procedures, and standby operation for the amplifier.

2.1.2 Power up, Warm up, Standby off

Explains the sequence and importance of powering up, warming up tubes, and engaging standby for optimal performance.

2.1.3 Power Tube Caution

Warns about the sensitive nature of power tubes and the stress caused by premature standby activation.

Chapter Three: Peripheral Connections

3.2 Rear Panel Connections

Covers the various output and input jacks on the rear panel for effects loops and speaker connections.

3.2.1 Send/Return Loop

Explains the three separate effects loops (switchable, serial, parallel) and their functionality.

3.2.8 Speaker Connections

Details the five speaker output jacks and their impedance configurations for connecting cabinets.

Chapter Four: Three Pre-Amplifiers

4.1 Pre-Amplifiers and their Functions

Introduces the three independent preamps designed for clean, crunch, and lead tones.

Chapter Five: Power Amplifier

5.1 Tone and Volume of the Power Amplifier

Covers the controls that shape the output tone and volume of the amplifier's power section.

5.2 Power Amplifier Tubes

Explains the function of power amplifier tubes in producing output power and their tonal characteristics.

5.2.1 Function

Describes the role of the power amp section in amplifying preamp signals to loudspeaker levels.

Chapter Six: Functions and Switches

6.1 Programming the Herbert

Guides on programming the amplifier's functions and storing presets via MIDI or manual controls.

6.2 Manual Channel Selection

Explains how to manually select channels and program them via MIDI pedal for custom setups.

Chapter Seven: MIDI

7.4 MIDI Communication

Covers different modes of MIDI communication, including Omni and Single Channel modes.

7.4.2 Single Channel Mode – Automatic Channel Recognition

Details how the amplifier automatically recognizes the MIDI channel for program changes.

7.4.3 Single Channel Mode – Manual Channel Selection

Explains how to manually set the amplifier to respond to a specific MIDI channel for control.

Chapter Nine: Maintenance and Cleaning

9.3 Tube Change

Details procedures and precautions for replacing power tubes, emphasizing professional service and re-biasing.