Laney Lionheart L20H Bedienungsanleitung

L20H USER MANUAL - EN

www.laney.co.uk

Table of contents

ENGLISH........................................................ 3

GERMAN........................................................ 16

FRENCH......................................................... 30

SPANISH........................................................ 44

PORTUGUESE................................................ 58

KOREAN ........................................................ 72

JAPANESE...................................................... 86

WARNINGS..................................................... 100

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L20H USER MANUAL - EN

Introduction

Designed, engineered and built with pride in Great Britain.

The Lionheart range brings boutique Single-Ended & Parallel Single-Ended Class ‘A’ tube

tone to the discerning player who is looking for uniquely responsive BRITISH tube tone.

The Dark Art: In an age where guitar players have developed an unhealthy fascination with

pre-amp distortion, the fabled sound of a tube power amp being pushed hard has almost

passed into history.

Until now that is!

The 20W Parallel Class A Single Ended output stage installed in the L20H oozes classic,

warm tube tones: The harder you drive it, the better it sounds. Plus with enough gain for

contemporary tones, it also has a mean, spiteful side to it as well – making it ideal for any

style of playing. Equally at home on stage plugged into a Laney LT112 or LT212 cabinet or

perfect for studio use.

Every Lionheart product is extensively play tested by experienced guitarists before being

shipped to our customers. Only when the unit is nished to our complete satisfaction is it

assigned its own unique build number which is then hand stamped onto the rear mounted

plaque.

Your L20H should give you years of trouble-free amplication, however please take time to

read this manual and familiarise yourself with the controls as it will allow you to get the best

from your amplier.

We hope you enjoy using your L20H as much as we enjoyed designing and making it.

Best wishes from all at Laney.

L20H USER MANUAL - EN

www.laney.co.uk

HI INPUT: ‘Hi’ stands for high gain. This input is designed for the connection of low

output level guitars making it well suited for guitars with single coiled or low gain hum

bucker type pickups. Use of high gain pickups in this input may drive the preamp too

hard causing a “mushy” sound. Only use good quality guitar cable.

LO INPUT: ‘Lo’ stands for low gain. This input is attenuated down approximately 50%

from the Hi input and is designed for high output level guitars. It is useful in obtaining

output that is “tight” not “mushy” from high gain humbucker type pickups. Also use this

input for the cleanest full range sound with extended low end response. Only use good

quality guitar cable.

CLEAN VOLUME: Sets how loud the clean channel is. Try cranking it up a little to drive

the power tubes harder for that real retro sound and feel that only a quality tube amplier

can deliver. Now use your guitar volume to control the amount of distortion. (Wind it up for

distortion back it off a little for clean).

BRIGHT: Adds brightness and life to the treble frequencies of your guitar when on the clean

channel. Adds edge and picking emphasis when on the drive channel. The switch has

more effect at low Clean Volume/Drive control settings. Use in conjunction with the Treble

and Tone controls for optimum performance. Switch up to enable.

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L20H FEATURES

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L20H USER MANUAL - EN

L20H FEATURES

DRIVE: Sets the level of tube preamplier drive or how dirty your sound is. This control

should be used in conjunction with the Drive Volume (6) Setting low levels of gain with high

levels of volume will give a clean preamplier sound with tube output stage overdrive.

Setting a medium drive level and medium Drive Volume will give a nice crisp bluesy lead

tone, again with the ability to drive the output stage at higher Drive Volume settings.

Setting a high level on the Drive control and a low setting on the Drive Volume will give you

a punchy hard rock lead tone, with the ability to again drive the output tubes at higher Drive

volume settings. Having set the Drive and Drive Volume controls to your desired sound try

backing off your guitar volume and tone controls for lots of other cool sounds. Good tube

ampliers have the unique ability to produce a wide range of sounds by using only your

guitar controls, playing weight and style.

DRIVE VOLUME: Sets how loud the ‘Drive’ channel is. It is useful to experiment with drive

levels and drive volumes. If you want a very open, warm and semi overdriven sound try

reducing the amount of drive and increasing the drive volume. This reduces pre-amp gain

but pushes the power amp section and makes it work harder giving you a very desirable

level of power amp distortion which is a very pleasing “retro” style sound.

DRIVE SWITCH: Switch up to enable the ‘Drive’ channel. (This switch must be in the down

(OFF) position in order for the drive to be switched remotely via a foot switch).

DRIVE LED: This led will illuminate when the Drive channel is activated with the Drive

switch (8) or the included Laney FS2-MINI remote footswitch.

BASS, MIDDLE, TREBLE: These are a traditional set of passive tone controls. Passive

controls have the advantage of always sounding musical at any of their settings mainly due

to their unique interactive nature. This gives players a more natural set of tools to create

their ideal sound. (Try them all set at midway (5) as a good starting point).

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L20H USER MANUAL - EN

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L20H FEATURES

REVERB: Controls how loud the built in reverb sounds.

TONE: The tone control works in a similar fashion to the Tone control you probably have

on your guitar except that it uniquely works at the other end of the amplication chain. This

has the ability to not only control the overall top end response but also reduce upper end

harmonics on the output stage and preamplier overdrive sounds. This will give you bright

cutting sounds at high settings and smooth rounded sounds at lower settings. (Midway (5)

is a good starting point).

STANDBY SWITCH: Disconnects the main HT voltage from the tubes but keeps the tubes

warm so that they are ready to go instantly. Switch to standby for short breaks when you

don’t want to wait for the tubes to warm up again.

POWER LED: This LED will be lit when the amplier is switched on. (Always switch off and

disconnect the power cord when not in use).

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L20H USER MANUAL - EN

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L20H FEATURES

POWER INLET SOCKET: Connect to your power source. Make sure the specied voltage

is correct for your country!

POWER FUSE: This drawer contains the main safety fuse for the unit. The fuse protects

the AC power to the amplier. USE ONLY THE CORRECT SIZE AND RATING OF FUSE AS

SPECIFIED ON THE PANEL. If a fuse blows or fails and a replacement of the same size and

rating is installed and it in turn blows, the amplier has suffered a malfunction internally

and needs immediate service from a qualied technician. DO NOT TRY USING A FUSE OF

HIGHER RATING. Using a fuse that is too large in current rating may cause serious,

irreparable damage to the amplier and presents a serious re hazard. The mains fuse

ratings are detailed in the specs section at the rear of this manual.

POWER: Main power switch for unit.

HT FUSE: This fuse protects the DC power to the tubes within the amplier. USE ONLY

THE CORRECT SIZE AND RATING FUSE AS SPECIFIED ON THE PANEL. If a fuse blows

or fails and a replacement of the same size and rating is installed and it in turn blows, the

amplier has suffered a malfunction, at this point check the output tubes and replace faulty

ones if required. Should tubes not be the problem the amplier should be checked out by

a qualied technician. Do not try using a fuse of greater value. Using a fuse that is too

large in current rating may cause serious, irreparable damage to the amplier. Fuses are

designed to protect, do not take chances.

EXTENSION CABINET: Use to connect an 8-16 ohm extension cabinet. Please note mis-

matched impedance will reduce the ampliers performance and in some cases may cause

damage to your amplier.

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L20H USER MANUAL - EN

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L20H FEATURES

FX-LOOP:

FX RETURN: Mono jack socket for the connection of the output of an external FX unit. This

can also be used as a slave in for the power amp. As the FX loop is an insert type, this will

mute the preamp.

FXLOOP SWITCH: Selects the FX loop mode of operation

• 10 dBu - For connection of FX units with a -10dBu nominal output level. As this

is intended for devices wth a lower output level, this switch increases the gain

from the FX loop by 10dBu.

• 0 dBu - For connection of FX units with a 0 dbu nominal output level.

• Bypass - Removes the FX loop from the signal path.

FX SEND: Mono jack socket for connection to the input of an external FX unit.

FOOTSWITCH SOCKET: Provided for connection of the included Laney FS2-MINI

footswitch. This allows you to remotely switch between the clean/drive channel and switch

the built in reverb On/Off.

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L20H USER MANUAL - EN

• Tube amplifiers: generally, sound much warmer/sweeter than solid state transistor

ampliers but they also need a little more respect due to the fragile glass tubes themselves.

The L20H uses top quality tubes, three ECC83 preamp tubes, and 4 x EL84 output tubes

which should give you years of trouble-free service, however like all tube amps; it is

important to treat it with a certain amount of care.

• Tubes are fragile glass components: they can easily be damaged if thrown in and out

of vehicles.

• Make sure the impedance: of your cabinets matches the setting on your amplier.

Improper impedance matching will result in reduced output power output and compromised

sound at best and amplier failure/premature tube failure at worst.

• Allow the amplifier: to warm up to room temperature before switching it on, the sudden

thermal shock generated can crack the cold glass tube housing plus any moisture is bad

news around high voltage electronics.

• Allow the amplifier: to cool down after playing before moving. Hot tubes are more

susceptible to damage than cool ones. Use good quality loudspeaker leads, cheap leads

are often not up to the job of handling the large requirements for loudspeakers and can

often short out.

• Tube amplifiers: don’t like running into an open circuit. A tubes life expectancy is based

upon a number of factors which include operating temperature, how hard and how often

it is played, vibration due to travel etc. Tubes should be changed in your amplier if you

notice any change in your amplier’s performance etc. They need not be changed at any

regular interval.

• Typical problems: with preamp tubes, can be a crackly noise, hiss, hum and micro-

phony. The preamp tubes can safely be changed with no other action required if they fail or

reduce in performance. Typical output tube problems can be blown HT fuse; sound lacking

in punch, sound lacks extreme highs or lows and low-level hum. The Output tubes can be

replaced singularly if you replace them with the exact same type AND grade as factory tted

otherwise, they should be replaced as a set. See the diagram following to see how to check

the tube grade tted. Exact replacement preamp tubes and matched sets of output tubes

are available from Laney via your dealer.

TUBE AMPLIFIER SURVIVAL TIPS

L20H USER MANUAL - EN

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• To change a tube: switch off the unit and unplug from the mains supply. Wait for the

tubes to cool down. Lay amplier down on its front face and remove the protective grille

held in place with four screws. You should now be able to access the underside of the

amplier chassis. Preamp tubes are protected with a screen can, to remove; gently twist

the screen can anti clockwise and then pull up. The tube can then be gently pulled out.

Take care when pushing the new tube in to make sure the pins are all aligned properly.

Output tubes have a spring retainer which must be pulled away before the tube will come

out.

• Amplifier connection: To avoid damage, it is advisable to establish and follow a pattern

for turning on and off your equipment. With all system parts connected, effects processors

etc. BEFORE turning on your guitar amplier. Many products have large transient surges

at turn on and off which can cause damage to your speakers. By turning on your guitar

amplier LAST and making sure its volume controls are set to minimum any transients

from other equipment will not reach your loudspeakers. Wait until all system parts have

stabilised; usually a couple of seconds. Similarly when turning off your system always turn

down the Volume controls on your guitar amplier and then turn off its power before turning

off other equipment.

• Cables: never use shielded or microphone cable for any speaker connections as this

will not be substantial enough to handle the amplier load and could cause damage to your

amplier system.

• Caution: These professional loudspeaker systems are capable of generating very high

sound pressure levels. Use care with placement and operation to avoid exposure to

excessive levels that can cause permanent hearing damage.

Servicing: The user should not attempt to service these products. Refer all servicing to

qualied service personnel.

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