Harley Benton Double Jammer User Manual

Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • info@thomann.de DocID: 522104_01.02.2022
Double Jammer
Quick Start Guide
This quick start guide contains important information on the safe operation of the
product. Read and follow the safety advice and instructions given. Retain the quick
start guide for future reference. If you pass the product on to others please include
this quick start guide.
Safety instructions
Intended use
This product is meant to be used as a drum machine and looper pedal. Any other
use or use under other operating conditions is considered to be improper and may
result in personal injury or property damage. No liability will be assumed for damages
resulting from improper use.
Danger for children
Ensure that plastic bags, packaging, etc. are disposed of properly and are
not within reach of babies and young children. Choking hazard! Ensure
that children do not detach any small parts from the product. They could
swallow the pieces and choke!
Where to use the product
Never use the product
• in conditions of extreme temperature or humidity
• in extremely dusty or dirty areas
• at locations where the unit can become wet
General handling
• To prevent damage, never use force when handling the product.
• Never immerse the product in water. Just wipe it with a clean dry cloth. Do not use
liquid cleaners such as benzene, thinners or ammable cleaning agents.
Features
• Dual drum machine and looper pedal for guitar and bass
• Rhythm and loop functions can be used simultaneously or individually and in any
order
• Drum machine with tone, drum level and speed controls, 11 genres of drum
patterns, a total of 121 drum beats
• Tap tempo functionality
• Looper with up to 30 minutes of loop time, undo / redo function and unlimited
repetitions
• Normal / Sync / Sync + counter switch
• Power supply via 9 V
power supply unit (not included), suitable optional power
supply unit: item no. 409939, no battery operation)
Operating elements
1 TONE Rotary control to adjust the tone colour of the drum machine.
2 DRUM LEVEL Rotary control to adjust the volume level of the drum machine.
3 SPEED Rotary control to adjust the drum machine tempo, as long as
the LOOPER is not active. Range goes from 40 to 260bpm. If a
LOOPER le exists, the drum machine tempo cannot be adjusted.
4 9V 300mA Socket for power supply (PSU not included).
5 LOOP LEVEL Rotary control to adjust the playback volume level of the LOOP-
ER. 12 o'clock for 0 dB, 5 o'clock for +6dB, 7 o'clock for -∞.
6 MODE Switch to select one of three operation modes.
7 GROOVE Select from 11 dierent rhythm types according to the currently
selected style.
8 INPUT 1/4" jack socket for instrument connection.
9 LOOPER Footswitch to control the Looper for PLAY, DUB, UNDO, REDO,
PAUSE, DELETE. See the detailed information in the instructions
below.
10 DRUM/TAP Footswitch to turn the drum machine and tap tempo function
on or o.
11 OUTPUT 1/4" jack socket for amp connection.
12 STYLE Switch to select from 10 dierent drum machine styles and 11
metronome types.
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Harley Benton Double Jammer Specifications

General

Brand	Harley Benton
Model	Double Jammer
Category	Music Pedal
Language	English

Summary

Safety Instructions

Intended Use

Defines the product's purpose as a drum machine and looper pedal for guitar and bass. Any other use is considered improper.

Danger for Children

Warns of choking hazards from plastic bags and small parts, advising proper disposal and keeping out of reach of children.

Where to Use the Product

Specifies conditions to avoid, such as extreme temperature, humidity, dust, or wet environments, to prevent damage.

General Handling

Advises against using force and immersing the product in water, recommending cleaning with a dry cloth only.

Product Features

Core Functionality

Highlights the dual capabilities of a drum machine and looper pedal, usable individually or simultaneously.

Drum Machine Details

Features tone, level, speed controls, 11 drum genres, and 121 drum beats. Includes tap tempo functionality.

Looper Capabilities

Offers up to 30 minutes of loop time with undo/redo and unlimited repetitions, controlled via footswitch.

Operating Elements and Connections

Controls Overview

Details rotary controls for Tone, Drum Level, Speed, and Loop Level, plus MODE and GROOVE switches.

Inputs and Outputs

Describes the 9V power input, 1/4" instrument input, and 1/4" output for amplifier connection.

Footswitches

Explains the function of the LOOPER footswitch (Play, Dub, Undo, Redo, Delete) and DRUM/TAP footswitch.

Style Selection

Details the STYLE switch for selecting drum machine styles and metronome types.

Using the Product

Power and Connections

Instructions for connecting the 9V power supply, emphasizing polarity, and connecting instruments/amplifiers.

Looper Function

Guides on recording, playback, dubbing, undo/redo, and stopping the looper, including LED indicators.

Drum Function

Explains starting/stopping the drum machine, using tap tempo, and tempo synchronization with the looper.

Operation Modes

Details Normal, SYNC, and SYNC+COUNT modes for independent or synchronized operation of drum machine and looper.