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Laney LC50-II User Manual

Laney LC50-II
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: LC50-II
MODEL : LC30-II
Laney
USER MANUAL
LC SERIES
www.laney.co.uk

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Laney LC50-II Specifications

General IconGeneral
BrandLaney
ModelLC50-II
CategoryAmplifier
LanguageEnglish

Summary

Important Safety Instructions

General Safety Guidelines

General safety and operating instructions for using the amplifier, covering installation, usage, and maintenance.

Noise Exposure and Hearing Protection

Information on permissible noise levels and the importance of hearing protection during use.

Introduction

Before Switching On

Essential checks and advice before connecting and operating the Laney amplifier.

Recommended Settings

Clean Channel Settings

Recommended control settings for achieving a clean tone on the amplifier.

Clean Crunch Settings

Suggested settings for the clean channel with overdrive engaged.

Blues Lead Settings

Recommended settings for blues-oriented lead guitar tones.

Rock Rhythm Settings

Suggested control settings for rock rhythm playing.

Rock Lead Settings

Recommended settings for rock lead guitar tones.

Explanation of Terms

Hi Input

Input for guitars with single coil or low gain pickups, providing maximum pre-amp gain.

Lo Input

Attenuated input providing a tighter, less 'mushy' sound from high gain pickups.

Volume Control

Sets the overall listening level for the clean channel.

Bright Switch

Adds brightness and sparkle to upper frequencies, noticeable at low gain.

Bass Control

Adjusts the low frequency EQ in the preamplifier.

Middle Control

Adjusts the mid frequency EQ in the preamplifier.

Treble Control

Adjusts the high frequency EQ in the preamplifier.

Channel Switch

Allows switching between Clean and Overdrive channels without a footswitch.

Drive Control

Controls the level of valve 'Overdrive'.

Master Volume Control

Controls the overall listening level of the 'Overdrive' channel.

Reverb Control

Adjusts the overall reverb level for the amplifier.

Effects Control

Controls the signal level sent to the effects loop send socket.

Power Fuses

Protects the AC power of the amplifier; use only specified size and rating.

HT Fuse

Protects the DC power; use specified size and rating. Check output valves if it blows.

Internal Cabinet Connection

1/4" output jack connected to the on-board speaker; set impedance selector to 8 ohms.

Impedance Selector Switch

Switches internal impedance setting for the amplifier's speaker connection.

Extension Speaker Socket

Connects an 8-ohm extension cabinet; set impedance to 4 ohms.

Effects Loop Send

Provides an output from the preamplifier to drive external effects units.

Effects Loop Return

Receives the output from an external effects unit via the send socket.

Footswitch Socket

Connection point for a Laney FS2 footswitch for channel switching.

Useful Hints and Tips

Warm-up Time and Placement

Advice on allowing the valve amplifier to warm up and optimal placement for sound.

Input Selection and Bright Switch

Guidance on using Hi/Lo inputs and the effect of the Bright Switch.

Valve Replacement and Trouble Shooting

Symptom 1: No Power

Troubleshooting steps when the power light fails to illuminate.

Symptom 2: No Sound Output

Troubleshooting steps when the power is on but no sound is produced.

Symptom 3: Repeated Fuse Blows

Diagnosing repeated secondary fuse blows, often indicating output valve issues.

Symptom 4: No Pre-Amplifier Boost

Troubleshooting steps for lack of pre-amplifier boost function.

Symptom 5: Slow Loss of Power

Troubleshooting steps for a gradual decrease in amplifier power output.

Technical Specification

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