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Lehle Little Dual II User Manual

Lehle Little Dual II
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OPERATING INSTRUCTIONS
LEHLE LITTLE DUAL II
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Lehle Little Dual II Specifications

General IconGeneral
TypeABY Switcher
Inputs2
Outputs2
Input Impedance1 MΩ
Channels2
Power Supply9V DC
Output Impedance1 kΩ
SwitchingRelay

Summary

Introduction to Lehle Little Dual II

Lehle Little Dual II Technical Specifications

Lehle Little Dual II General Description and Features

TRS Switch Functionality

Distributes stereo or dual-mono signals via a TRS jack to outputs A and B.

A/B Input Socket Connection

Connects instruments or effects units for mono or stereo signals to outputs.

A Input Socket Usage

Connects a second pickup or stereo output, routing signals to output A.

B Output Connection

Connects an amplifier or mixing desk; grounds the instrument via this socket.

Phase Inverter Switch

Inverts the phase of the signal from output A by 180° to prevent phase cancellations.

A Output Functionality

Connects an amplifier or mixing desk; isolated by Transformer HZ for hum-free operation.

Ground Switch Operation

Connects grounds of output sockets A and B to minimize noise.

External Power Supply Requirements

Specifies the required voltage (9-15V) and recommends isolated power supplies for noise reduction.

LED Switching Status Indicators

Explains the meaning of LED colors (Green for A, Red for B) indicating active outputs.

True Bypass Switch Mechanism

Details the microcontroller-controlled true-bypass relay circuit with pop suppression.

Device Mounting and Fixing

Explains how to mount the device on a pedalboard using screws or optional kits.

Selecting the Operating Mode

Selecting the Footswitch Mode

Restoring Factory Settings

Typical Uses of the Lehle Little Dual II

Amp-Switcher for Stereo Effects and 2 Amplifiers

Setup for using stereo effects with two amps, one for left, one for right signal.

Amp Switcher in a Wet/Dry System

Configures one amp for dry signal and another for wet effects.

Amp Switcher for Piezo and Magnetic Pickups to 2 Amps

Routes separate piezo and magnetic pickup signals to two different amplifiers.

Amp Switcher for Piezo/Magnetic Pickups to Amp and Mixer

Routes piezo signal to a mixer and magnetic pickup to an amp.

Tuner Mute Box Functionality

Uses the pedal to mute the signal for tuning, isolating the tuner from the signal path.

Lehle Little Dual II Signal Flow Diagram

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