Laney L20T-112 OPERATING INSTRUCTIONS

-112

L20T

OPERATING INSTRUCTIONS - 1.3

ALL TUBE ‘CLASS A’

HERITAGE AMPLIFIER

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L20T

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions safe.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any of the ventilation openings. Install in accordance with manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.

An apparatus with Class I construction shall be connected to a mains socket outlet with a protective connection. Do not defeat the safety purpose of the

9.

polarized or grounding-type plug.

than the other. A grounding type plug has two blades and a third grounding plug. The wide blade or third prong is provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point they exit from the apparatus.

11. Only use attachments/accessories provided by the manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when

moving the cart/apparatus combination to avoid injury from tip-over.

The mains plug or appliance coupler is used as the disconnect device and shall remain readily operable. The user should allow easy access to any

13.

mains plug, mains coupler and mains switch used in conjunction with this unit thus making it readily operable.

or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as when power-supply
cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.

15. Never break off the ground pin. Connect only to a power supply of the type marked on the unit adjacent to the power supply cord.

16. If this product is to be mounted in an equipment rack, rear support should be provided.

17. Note for UK only: If the colours of the wires in the mains lead of this unit do not correspond with the terminals in your plug‚ proceed as follows:

a) The wire that is coloured green and yellow must be connected to the terminal that is marked by the letter E‚ the earth symbol‚ coloured green or
coloured green and yellow.
b) The wire that is coloured blue must be connected to the terminal that is marked with the letter N or the colour black.
c) The wire that is coloured brown must be connected to the terminal that is marked with the letter L or the colour red.

18.This electrical apparatus should not be exposed to dripping or splashing and care should be taken not to place
objects containing liquids, such as vases, upon the apparatus.

19. Exposure to extremely high noise levels may cause a permanent hearing loss. Individuals vary considerably in
susceptibility to noise-induced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently
intense noise for a sufficient time.
The U.S. Government’s Occupational Safety and Health Administration (OSHA) has specified the following
permissible noise level exposures: According to OSHA, any exposure in excess of the above permissible limits could
result in some hearing loss. Earplugs or protectors to the ear canals or over the ears must be worn when operating
thisamplification system in order to prevent a permanent hearing loss, if exposure is in excess of the limits as set forth
above. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all
persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be
protected by hearing protectors while this unit is in operation.

WARNING: When using electrical products, basic cautions should always be followed, including the following:

Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider

Unplug this apparatus during lightning storms

Duration Per
Day in Hours

8
6
4
3
2

1 ½

1

½

¼ or less

Sound Level dBA,

slow response

90
92
95

97
100
102
105
110
115

INSTRUCTIONS IMPORTANTES DE SECURITE - FRANÇAIS

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1. Lire ces instructions

2. Gardez ce manuel pour de futures références.

3. Prétez attention aux messages de précautions de ce manuel.

4. Suivez ces instructions.

5. N’utilisez pas cette unité proche de plans d’eau.

6. N’utilisez qu’un tissu sec pour le nettoyage de votre unité.

7. N’obstruez pas les systèmes de refroidissement de votre unité et installez votre unité en fonction des instructionsde ce manuel.

8. Ne positionnez pas votre unité à proximité de toute source de chaleur.

9. Un appareil avec la construction de la classe I sera relié à une sortie de douille de forces à un raccordement protecteur. Connectez toujours votre unité

sur une alimentation munie de prise de terre utilisant le cordon d’alimentation fourni.

10. Protégez les connecteurs de votre unité et positionnez les cablages pour éviter toutes déconnexions accidentelles.

11. N’utilisez que des fixations approuvées par le fabriquant.

12. Lors de l’utilsation sur pied ou pole de support, assurez dans le cas de déplacement de l’ensemble enceinte/support de prévenir tout basculement

intempestif de celui-ci.

13. Les forces branchent ou le coupleur d'appareils est utilisé pendant que le dispositif de débranchement et restera aisément fonctionnel. L'utilisateur
devrait permettre l'accès facile à toutes les forces prise, à forces coupleur et à commutateur de forces utilisé en même temps que cette unité le rendant de
ce fait aisément fonctionnel. Débranchez cet appareil pendant la foudre donne l' assaut à ou si inutilisé pendant de longues périodes.

14. Seul un technicien agréé par le fabriquant est à même de réparer/contrôler votre unité. Celle-ci doit être contrôlée si elle a subit des dommages de
manipulation, d’utilisation ou de stockage (humidité,…).

15. Ne déconnectez jamais la prise de terre de votre unité.

16. Si votre unité est destinée a etre montée en rack, des supports arriere doivent etre utilises.

17. Note pour les Royaumes-Unis: Si les couleurs de connecteurs du cable d’alimentation ne correspond pas au guide de la prise secteur, procédez comme

suit:
a) Le connecteur vert et jaune doit être connectrer au terminal noté E, indiquant la prise de terre ou correspondantaux couleurs verte ou verte et
jaune du guide.
b) Le connecteur bleu doit être connectrer au terminal noté N, correspondnat à la couleur noire du guide.
c) Le connecteur marron doit être connectrer au terminal noté L, correspondant à la couleur rouge du guide.

18. Cet équipement électrique ne doit en aucun cas être en contact avec un quelconque liquide et aucun objet
contenant un liquide, vase ou autre ne devrait être posé sur celui-ci.

19. Une exposition à de hauts niveaux sonores peut conduire à des dommages de l’écoute irréversibles. La
susceptibilité au bruit varie considérablement d’un individu à l’autre, mais une large majorité de la population
expériencera une perte de l’écoute après une exposition à une forte puissance sonore pour une durée prolongée.
L’organisme de la santé américaine (OSHA) a produit le guide ci-dessous en rapport à la perte occasionnée:
D’après les études menées par le OSHA, toute exposition au delà des limites décrites ce-dessus entrainera des
pertes de l’écoute chez la plupart des sujets. Le port de système de protection (casque, oreilette de filtrage,…) doit
être observé lors de l’opération cette unité ou des dommages irréversibles peuvent être occasionnés. Le port de ces
systèmes doit être observé par toutes personnes susceptibles d’être exposées à des conditions au delà des limites
décrites ci-dessus.

ATTENTION: L’utilisation de tout appareil électrique doit être soumise aux precautions d’usage incluant:

Durée par

Jour (heures)

8
6
4
3
2

1 ½

1

½

¼ ou

inférieur

Niveau sonore

moyen (dBA)

90
92
95

97
100
102
105
110
115

L20T

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WICHTIGE SICHERHEITSHINWEISE - DEUSCH

L20T

1. Lesen Sie sich diese Anweisungen durch.

2. Bewahren Sie diese Anweisungen auf.

3. Beachten Sie alle Warnungen.

4. Befolgen Sie alle Anweisungen.

5. Setzen Sie dieses Gerät nicht in der Nähe von Wasser ein.

6. Reinigen Sie es nur mit einem trockenen Tuch.

7. Blockieren Sie keine der Lüftungsöffnungen. Führen Sie die Installation gemäß den Anweisungen des Herstellers durch.

8. Installieren Sie das Gerät nicht neben Wärmequellen wie Heizungen, Heizgeräten, Öfen oder anderen Geräten (auch Verstärkern), die Wärme erzeugen.

9. Ein Apparat mit Aufbau der Kategorie I wird an einen Hauptleitungseinfaßungsanschluß mit einem schützenden Anschluss angeschlossen.

Beeinträchtigen Sie nicht die Sicherheitswirkung des gepolten Steckers bzw. des Erdungssteckers. Ein gepolter Stecker weistzwei Stifte auf, von denen einer breiter
ist als der andere. Ein Erdungsstecker weist zwei Stifte und einen dritten Erdungsstift auf.Der breite Stift bzw. der dritte Stift dient Ihrer Sicherheit. Sollte der
beiliegende Stecker nicht in Ihre Steckdose passen, wenden Sie sich bitte an einen Elektriker, um die ungeeignete Steckdose austauschen zu lassen.

10. Schützen Sie das Netzkabel, sodass niemand darauf tritt oder es geknickt wird, insbesondere an Steckern oder Buchsen und ihren Austrittsstellen aus dem Gerät.

11. Verwenden Sie nur die vom Hersteller erhältlichen Zubehörgeräte oder Zubehörteile.

12. Verwenden Sie nur einen Wagen, Stativ, Dreifuß, Träger oder Tisch, der den Angaben des Herstellers entspricht oder zusammen mit dem Gerät verkauft wurde.

Wird ein Wagen verwendet, bewegen Sie den Wagen mit dem darauf befindlichen Gerät besonders vorsichtig, damit er nicht umkippt und möglicherweise jemand
verletzt wird.

13. Die Hauptleitungen verstopfen, oder Gerätekoppler wird während die Trennung Vorrichtung benutzt und wird bereitwillig funktionell bleiben. Der Benutzer sollte
einfachen Zugang zu allen möglichen Hauptleitungen Stecker, zu den Hauptleitungen Koppler und zum Hauptleitungen Schalter erlauben, der in Verbindung mit dieser
Maßeinheit benutzt wird, die folglich ihn bereitwillig funktionell bildet. Trennen Sie diesen Apparat während der Blitzstürme oder wenn unbenutzt, für lange
Zeitabschnitte.

14. Lassen Sie sämtliche Wartungsarbeiten von qualifizierten Kundendiensttechnikern durchführen. Eine Wartung ist erforderlich, wenn das Gerät in irgendeiner Art
beschädigt wurde, etwa wenn das Netzkabel oder der Netzstecker beschädigt wurden, Flüssigkeit oder Gegenstände in das Gerät gelangt sind, das Gerät Regen oder
Feuchtigkeit ausgesetzt wurde, nicht normal rbeitet oder heruntergefallen ist.

15.Der Erdungsstift darf nie entfernt werden. Schließen Sie nur an die Stromversorgung der Art an, die am Gerät neben dem Netzkabel angegeben ist.

16. Wenn dieses Produkt in ein Geräte-Rack eingebaut werden soll, muss eine Versorgung über die Rückseite eingerichtet werden.

17. Hinweis – Nur für Großbritannien: Sollte die Farbe der Drähte in der Netzleitung dieses Geräts nicht mit den Klemmen in Ihrem Stecker übereinstimmen, gehen Sie

folgendermaßen vor:
a) Der grün-gelbe Draht muss an die mit E (Symbol für Erde) markierte bzw. grüne oder grün-gelbe Klemme angeschlossen werden.
b) Der blaue Draht muss an die mit N markierte bzw. schwarze Klemme angeschlossen werden.
c) Der braune Draht muss an die mit L markierte bzw. rote Klemme angeschlossen werden.

18. Dieses Gerät darf nicht ungeschützt Wassertropfen und Wasserspritzern ausgesetzt werden und es muss darauf geachtet
werden, dass keine mit Flüssigkeiten gefüllte Gegenstände, wie z. B. Blumenvasen, auf dem Gerät abgestellt werden.

19. Belastung durch extrem hohe Lärmpegel kann zu dauerhaftem Gehörverlust führen. Die Anfälligkeit für durch Lärm
bedingten Gehörverlust ist von Mensch zu Mensch verschieden, das Gehör wird jedoch bei jedem in gewissem Maße
geschädigt, der über einen bestimmten Zeitraum ausreichend starkem Lärm ausgesetzt ist. Die US-Arbeitsschutzbehörde
(Occupational and Health Administration, OSHA) hat die folgenden zulässigen Pegel für Lärmbelastung festgelegt:
Laut OSHA kann jede Belastung über den obenstehenden zulässigen Grenzwerten zu einem gewissen Gehörverlust führen.
Sollte die Belastung die obenstehenden Grenzwerte übersteigen, müssen beim Betrieb dieses Verstärkungssystems
Ohrenstopfen oder Schutzvorrichtungen im Gehörgang oder über den Ohren getragen werden, um einen dauerhaften
Gehörverlust zu verhindern. Um sich vor einer möglicherweise gefährlichen Belastung durch hohe Schalldruckpegel zu
schützen, wird allen Personen empfohlen, die mit Geräten arbeiten, die wie dieses Verstärkungssystem hohe Schalldruckpegel
erzeugen können, beim Betrieb dieses Geräts einen Gehörschutz zu tragen.

ACHTUNG: Beim Einsatz von Elektrogeräten müssen u.a. grundlegende Vorsichtsmaßnahmen befolgt werden:

Stunden

¼ oder weniger

Tag in

8
6
4
3
2

1 ½

1

½

langsame

Reaktion

90
92
95

97
100
102
105
110
115

INSTRUCCIONES IMPORTANTES PARA SU SEGURIDAD - ESPAÑOL

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1. Lea estas instrucciones.

2. Guarde estas instrucciones.

3. Haga caso de todos los consejos.

4. Siga todas las instrucciones.

5. No usar este aparato cerca del agua.

6. Limpiar solamente con una tela seca.

7. No bloquear ninguna de las salidas de ventilación. Instalar de acuerdo a las instrucciones del fabricante.

8. No instalar cerca de ninguna fuente de calor como radiadores, estufas, hornos u otros aparatos (incluyendo amplificadores) que produzcan calor.

9. Un aparato con la construcción de la clase I será conectado con un enchufe de zócalo de las cañerías con una conexión protectora. No retire la patilla

protectora del enchufe polarizado o de tipo “a Tierra”. Un enchufe polarizado tiene dos puntas, una de ellas más ancha que la otra. Un enchufe de tipo “a Tierra” tiene
dos puntas y una tercera “a Tierra”. La punta ancha (la tercera ) se proporciona para su seguridad. Si el enchufe proporcionado no encaja en su enchufe de red,
consulte a un electricista para que reemplaze su enchufe obsoleto.

10. Proteja el cable de alimentación para que no sea pisado o pinchado, particularmente en los enchufes, huecos, y los puntos que salen del aparato.

11. Usar solamente añadidos/accesorios proporcionados por el fabricante.

12. Usar solamente un carro, pie, trípode, o soporte especificado por el fabricante, o vendido junto al aparato. Cuando se use un carro, tenga cuidado al mover el

conjunto carro/aparato para evitar que se dañe en un vuelco. No suspenda esta caja de ninguna manera

13. Las cañerías tapan o el acoplador de la aplicación se utiliza mientras que el dispositivo de la desconexión y seguirá siendo fácilmente operable. El usuario debe
permitir el acceso fácil a cualquier cañería enchufe, a las cañerías acoplador y al interruptor de las cañerías usado conjuntamente con esta unidad así que lo hace
fácilmente operable. Desenchufe este aparato durante tormentas del relámpago o cuando es inusitado por períodos del tiempo largos.

14. Para cualquier reparación, acuda a personal de servicio cualificado. Se requieren reparaciones cuando el aparato ha sido dañado de alguna manera, como
cuando el cable de alimentación o el enchufe se han dañado, algún líquido ha sido derramado o algún objeto ha caído dentro del aparato, el aparato ha sido expuesto
a la lluvia o la humedad, no funciona de manera normal, o ha sufrido una caída.

15. Nunca retire la patilla de Tierra. Conecte el aparato sólo a una fuente de alimentación del tipo marcado al lado del cable de alimentación.

16. Si este producto va a ser enracado con más equipo, use algún tipo de apoyo trasero.

17. Nota para el Reino Unido solamente: Si los colores de los cables en el enchufe principal de esta unidad no corresponden con los terminales en su enchufe‚

proceda de la siguiente manera:
a) El cable de color verde y azul debe ser conectado al terminal que está marcado con la letra E‚ el símbolo de Tierra (earth)‚ coloreado en verde o en
verde y amarillo.
b) El cable coloreado en azul debe ser conectado al terminal que está marcado con la letra N o el color negro.
c) El cable coloreado en marrón debe ser conectado al terminal que está marcado con la letra L o el color rojo.

18. Este aparato eléctrico no debe ser sometido a ningún tipo de goteo o salpicadura y se debe tener cuidado para no poner
objetos que contengan líquidos, como vasos, sobre el aparato.

19. La exposición a altos niveles de ruido puede causar una pérdida permanente en la audición. La susceptibilidad a la pérdida de
audición provocada por el ruido varía segúnla persona, pero casi todo el mundo perderá algo de audición si se expone a un nivel
de ruido suficientemante intenso durante un tiempo determinado. El Departamento para la Salud y para la Seguridad del Gobierno
de los Estados Unidos (OSHA) ha especificado las siguientes exposiciones al ruido permisibles:
De acuerdo al OSHA, cualquier exposición que exceda los límites arriba indicados puede producir algún tipo de pérdida en la
audición. Protectores para los canales auditivos o tapones para los oídos deben ser usados cuando se opere con este sistema de
sonido para prevenir una pérdida permanente en la audición, si la exposición excede los límites indicados más arriba. Para
protegerse de una exposición a altos niveles de sonido potencialmente peligrosa, se recomienda que todas las personas
expuestas a equipamiento capaz de producir altos niveles de presión sonora, tales como este sistema de amplificación, se
encuentren protegidas por protectores auditivos mientras esta unidad esté operando.

CUIDADO: Cuando use productos electrónicos, debe tomar precauciones básicas, incluyendo las siguientes:

Día en

Horas

8
6
4
3
2

1 ½

1

½

¼ o menos

Sonido dBA,

Respuesta Lenta

90
92
95

97
100
102
105
110
115

L20T

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BEFORE SWITCHING ON

L20T

CAUTION:

ATTENTION:

PRECAUCION:

VORSICHT:

WARNING:

ADVERTISSEMENT:

ADVERTENCIA:

ACHTUNG:

Intended to alert the user to the presence of uninsulated ‘Dangerous Voltage’ within the products enclosure
that may be sufficient to constitute a risk of electrical shock to persons.

Ce symbole est utililise pur indiquer a l’utilisateur de ce produit de tension non-isolee dangereuse pouvant
etre d’intensite suffisante pour constituer un risque de choc electrique.

Este simbolo tiene el proposito de alertar al usuario de la presencia de ‘(voltaje) peligroso’ que no tiene
aislamiento dentro de la caja del producto que puede tener una magnitud suficiente como para constituir
riesgo de corrientazo.

Dieses Symbol soll den Anwender vor unsolierten gefahrlichen Spannungen innerhalb des Gehauses warnen,
die von Ausrichender Starke sind, um einen elektrischen Schlag verursachen zu konnen.

Intended to alert the user of the presence of important operating and maintenance (Servicing) instructions
in the literature accompanying the product.

Dieses Symbol soll den Anwender vor unsolierten gefahrlichen Spannungen innerhalb des Gehauses warnen,
die von Ausrichender Starke sind, um einen elektrischen Schlag verursachen zu konnen.

Este simbolo tiene el proposito de la alertar al usario de la presencis de instrucccones importantes sobre la
operacion y mantenimiento en la literatura que viene conel producto.

Dieses Symbol soll den Benutzer auf wichtige Instruktionen in der Bedienungsanleitung aufmerksam
machen, die Handhabung und Wartung des Produkts betreffen.

Risk of electrical shock - DO NOT OPEN.
To reduce the risk of electrical shock, do not remove the cover. No user serviceable parts inside. Refer
servicing to qualified personnel.

Risques de choc electrique - NE PAS OUVIRIR
Afin de reduire le risque de choc electrique, ne pas enlever le couvercle. II ne se trouve a l’interieur aucune
piece pouvant etre reparee par l’utilisateur. Confier l’entretien a un personnel qualifie.

Riesgo de corrientazo - no abra
Para disminuir el risego de carrientazo, no abra la cubierta. No hay piezas adentro que el pueda reparar.
Deje todo mantenimiento a los tecnicos calificadod.

Risiko - Elektrischer Schlag! Nicht offen!
Um das Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung enfernen. Es befinden sich
keine Teile darin, die vom Anwender repariert werden Konnten. Reparaturen nur von qualifiziertem
Fachpersonal durchfuhren lassen.

To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using
this appliance please read the operating instructions for further warnings.

Afin de prevenir les risques de decharge electrique ou de feu, n’exposez pas cet appareil a la pluie ou a
l’humidite. Avant d’utiliser cet appareil, lisez les advertissments supplentaires situes dans le guide.

Para evitar corrientazos o peligro de incendio, no deja expuesto a la lluvia o humedad este aparato Antes de
usar este aparato, lea mas advertcias en la guia de operacion.

Um einen elektrischen Schalg oder Feuergefahr zu vermeiden, sollte dieses Gerat nicht dem Regen oder
Feuchtigkeit ausgesetzt werden. Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.

After unpacking your amplifier check that it is factory fitted with
a three pin 'grounded' (or earthed) plug. Before plugging into the
power supply ensure you are connecting to a grounded earth
outlet.
If you should wish to change the factory fitted plug yourself, ensure
that the wiring convention applicable to the country where the
amplifier is to be used is strictly conformed to. As an example in the
United Kingdom the cable colour code for connections are as
follows.

EARTH or GROUND GREEN/YELLOW
NEUTRAL - BLUE
LIVE - BROWN

NOTE
This manual has been written for easy access of information. The
front and rear panels are graphically illustrated, with each control
and feature numbered. For a description of the function of each
control feature, simply check the number with the explanations
adjacent to each panel.
Your Laney amplifier has undergone a thorough two stage, pre­delivery inspection, involving actual play testing.
When you first receive your Laney guitar amplifier, follow these
simple procedures:
(i) Ensure that the amplifier is the correct voltage for the
country it is to be used in.
(ii) Connect your instrument with a high quality shielded
instrument cable. You have probably spent considerable money
on your amplifier and guitar - don’t use poor quality cable it
won’t do your gear justice.
Please retain your original carton and packaging so in the unlikely
event that some time in the future your amplifier should require
servicing you will be able to return it to your dealer securely
packed.

Care of your Laney amplifier will prolong it's life.....and yours!

SPECIFICATIONS

N om in al su pp ly volt ag e

M ain s F u se

H T Fu se

P ow er C on su mp tio n

O u tp ut Power R at in g

Lo u ds p eaker

Fo ot sw itc h ab le

E Q

In pu t R esis tan ce

~1 00 V , ~1 20 V , ~2 20 V , ~ 2 4 0V. 5 0/6 0H z P re -set Fact ory O p t ion

(~1 00 , ~ 1 1 0>1 20 V = T 1.6 A L 2 50 V ) ( ~2 2 0 V>2 40 V = T 63 0 m A L 2 50 V )

C u stom Design ed 1 2 ” (M in imu m 8 O hm Imp ed an ce)

FX Loo p: sid e c h ain typ e, n ominal 7 50 mV level.

T 3 15 mA L 2 5 V

Birch p lyw oo d cabin et con st ru ct io n fo r optimu m so u nd q ua lity a nd ro ad w ort h in ne ss .

5 0 W

2 0 W

FS 2 Fo r C lean /D rive C ha nnel & R ev erb O N /O FF

P u re P ar allel Single E n d ed C las s A V alv e tone.

O v ersiz ed p ow er su pp lies a nd ou tp u t t ran sformers f or th at b ig p ow erf u l sou n d an d lo ng term
reliab ility.

T h e b est av aila ble sp ecia lly selec ted tu b es t hrou gh o u t , ( 4* EL8 4 P ow er T ub es ,
3 * E CC 8 3 /12 A X 7 P reamp T ubes).

T h e ren ow ne d "t y p e 4 " la rge s p rin g lin e for t h at c lassic g uit ar reverb sou nd .

U n ique T ilt M ec h an ism.

P a sssiv e Bass, M idd le an d Treb le, T o n e B oost & C u t ( ac tive on top en d of sign a l)

1 M O hm

Fe a tu re s

-112

L20T

In order to reduce environmental damage, at the end of its useful life, this product must not be disposed of along with normal Household

This product conforms to the requirements of the following European Regulations, Directives & Rules:-

waste to landfill sites. It must be taken to an approved recycling centre according to the recommendations of the

CE Mark (93/68/EEC), Low Voltage (72/23/EEC), EMC (2004/108/EEC),

WEEE (Waste Electrical and Electronic Equipment) directive applicable in your country.

RoHS (EU2002/95/EC), WEEE (EU2002/96/EC)

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L20T

WELCOME

Dear Player,

Thank you very much for purchasing your new Laney product and becoming part of the worldwide Laney
family. Each and every Laney unit is designed and built with the utmost attention to care and detail, so I trust
yours will give you many years of enjoyment.

Laney products have a heritage which stretches back to 1967 when I first began building valve amplifiers in
my parent’s garage.

Since then we have moved on from strength to strength developing an extensive range of guitar, bass, public
address and keyboard amplification products along with a list of Laney endorsees that includes some of the
world’s most famous and respected musicians.

At the same time we believe we have not lost sight of the reason Laney was founded in the first place - a
dedication to building great sounding amplification for working musicians.

Warm Regards,

Lyndon Laney CEO

INTRODUCTION

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 L20T-112’s hand wired 20W Class A Single Ended output stage 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. Perfect for stage and studio use.

Every Lionheart product is extensively play tested by experienced
guitarists before being shipped to our customers. Only when the
unit is finished to our complete satisfaction is it assigned its own
unique build number which is then hand stamped onto the rear
mounted plaque.

Your L20T-112 should give you years of trouble-free amplification,
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
amplifier.

We hope you enjoy using your L20T-112 as much as we enjoyed
designing and making it.

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Best wishes from all at Laney

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FRONT PANEL CONTROLS

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1 2 3 4 5 6 7 8 10 11 12 13

1

HI INPUT:

suited for guitars with single coiled or low gain humbucker 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.

2

LO INPUT: ‘

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.

3

CLEAN VOL:

retro sound and feel that only a quality tube amplifier 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)

4

BRIGHT:

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.

5

DRIVE:

with the Drive Volume (6) Setting low levels of gain with high levels of volume will give a clean preamplifier 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.

‘Hi’ stands for high gain. This input is designed for the connection of low output level guitars making it well

Lo’ stands for low gain. This input is attenuated down approximately 50% from the Hi input and is designed

.

Sets how loud the clean channel is. Try cranking it up a little to drive the power tubes harder for that real

Adds brightness and life to the treble frequencies of your guitar when on the clean channel. Adds edge and

Sets the level of tube preamplifier drive or how dirty your sound is. This control should be used in conjunction

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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 amplifiers have the unique ability to produce a wide range of sounds by using only your guitar
controls, playing weight and style.

6

DRIVE VOL: . 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.

7

DRIVE LED:

Laney FS2 remote footswitch.

8

DRIVE SWITCH:

for the drive to be switched remotely via a foot switch.)

9

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)

10

REVERB: Controls how loud the built in reverb sounds. The reverb in the L20T-112 is a legendary Sound
Enhancements aka ‘Accutronics reverb’ - the only choice for that authentic reverb sound .

11

TONE:

uniquely works at the other end of the amplification 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 preamplifier 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)

12

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.

13

POWER LED: This led will be lit when the amplifier is switched on.

Sets how loud the 'Drive' channel is

-

This led will illuminate when the Drive channel is activated with the Drive switch (8) or the included

Switch up to enable the 'Drive' channel. (This switch must be in the down (OFF) position in order

.

The tone control works in a similar fashion to the Tone control you probably have on your guitar except that it

(Always switch off and disconnect the power cord when not in use)

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REAR PANEL CONTROLS

2

1

1

POWER: Main power switch for unit.

2

POWER INLET SOCKET: Connect to your power source. Make sure the specified voltage is correct for your
country!

3

POWER FUSE: This drawer contains the main safety fuse for the unit. The fuse protects the AC power to the
amplifier. 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 amplifier has suffered a
malfunction internally and needs immediate service from a qualified 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 amplifier
and presents a serious fire hazard. The mains fuse ratings are detailed in the specs section at the rear of this manual

4

HT FUSE: This fuse protects the DC power to the tubes within the amplifier. 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 amplifier has suffered a malfunction, at this point check the output tubes and replace
faulty ones if required. Should tubes not be the problem the amplifier should be checked out by a qualified 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 amplifier. Fuses are designed to protect, do not take chances.

5

SERIAL NO: Displays the model and serial number of the unit.

6

EXTENSION CABINET: If the onboard loudspeaker jack is removed, a 4-16 ohm cabinet can be connected directly
to these sockets. Use only one impedance selection at once. Please note mismatched impedance will reduce the
amplifiers performance and in some cases may cause damage to your amplifier.

EFFECTS LOOP RETURN: Connect the output from your external effects to this socket. The effects loop allows

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you to connect external effects such as tremolos, chorus and delays to your amplifier. A portion of the signal leaves the
amplifier via the `Send’ socket and comes back from the effects via the `Return` socket. Use the output level control on

3 4

5

6

7

8

9

Your FX to control how loud the FX return signal sounds.

8

EFFECTS LOOP SEND: Connect the input of your external effect to this socket. A ‘side chain’effects loop allows
you to connect external effects such as tremolos, chorus and delays to your amplifier. Signal leaves the amplifier via the
`Send’ socket and comes back from the effects via the `Return` socket. Some Effects are better suited to being between
the guitar and amplifer input - these are foot pedal types / distortion / wah wah pedals etc. Rack mount effects will work
better in the FX loop on the amplifer rear. Stomp boxes are normally designed for small signals such as a guitar output
whereas rack mount FX are designed for the higher signal level obtained from an FX send.

9

FOOTSWITCH SOCKET: Provided for the connection of
the included Laney FS2 footswitch.This allows you to remotely
switch between the clean/drive channel and switch the built in
reverb On/Off.

Your L20T-112 features a Tilting Mechanism to allow
use in either the upright or tilted back position.

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Use this design featu re with cauti on, due to the ease with which the amplifier can be moved
between straight and tilted back positions, only use the amplifier on a level, stable surface. DO
NOT operate the amplifier on a desk, table, shelf or o therwise u nsuitable nonstable platform.

Employez cette caractéristique de conception avec prudence, en raison de la f acilité avec
laquelle l'amplificateur peut être déplacé entre directement et en arrière incl inées des
positions, seulement utilisation l'amplificateur sur une surface de niveau et stable. N'actionnez
pas l'amplificateur sur un bureau, une table, une étagère o u une plate- forme nonstable
autrement peu convena ble.

Benutze n Sie diese Ausrüstu ngsbeschreibung mit der Vors icht, we gen der Mühelosig keit, mi t der der
Verstärker zwis chen gerade versch oben werden kann und g ekippte zur ück Positionen, nur Gebra uch der
Verstärker auf ei ner waagerecht aus gerichteten, bestän digen Oberf läche. Betreiben Sie NICHT den
Verstärker auf ei nem Schreibtisch, e iner Tabelle, einem Re gal oder anders ein er unpassenden nonstable
Plattfo rm.

Utilice esta característica del diseño con la precaución, debido a la facilidad con la cual el amplificador se
puede mover en medio derecho y detrás inclinadas las posiciones, sólo uso el amplificador en una superficie
llana, estable. No funcione el amplificador en un escritorio, una tabla, un estante o una plataforma nonstable
de otra manera inadecuada.

Lionheart products use only the best available build techniques and components to produce that perfect sound. This includes
the loudspeakers which are selected for their tonal quality. Because these speakers are hand made, using vintage style materials
which are acknowleged to give the best guitar sounds, they will take several hours of playing to settle down to their optimum
sound.

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QUICK START SETTINGS - suggestions only, experiment!

USER SETTINGS - Store your own cool sounds

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TUBE AMPLIFIER SURVIVAL TIPS

• Tube amplifiers; generally sound much warmer/sweeter than solid state transistor amplifiers but they also need a little
more respect due to the fragile glass tubes themselves. The L20T-112 uses top quality 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 amplifier. Improper impedance matching will
result in reduced output power output and compromised sound at best and amplifier 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 a 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 amplifier if you notice any change in your amplifiers performance etc. They need not be changed at any regular interval.

• Typical problems; with preamp tubes, can be a crackly noise, hiss, hum and microphony. 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 fitted otherwise they should be replaced as a set. See the
diagram following to see how to check the tube grade fitted. Exact replacement preamp tubes and matched sets of output
tubes are available from Laney via your dealer.

• To change a tube; switch off the unit and unplug from the mains supply. Wait for the tubes to cool down. Lay amplifier
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 amplifier 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 In order 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 amplifier. Many products have
large transient surges at turn on and off which can cause damage to your speakers. By turning on your guitar amplifier LAST and
making sure its Volume controls are set to minimum any transients from other equipment will not reach your loudspeakers.

V1 RT030 005570
V2 NN001 005550
V3 NN003 005548
V4-V7 EL84STR x 4 005563

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 amplifier 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
amplifier load and could cause damage to your amplifier 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. (Refer to guidelines on
page 2)
Servicing: The user should not attempt to service these products. Refer all servicing to qualified service personnel.

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BLOCK DIAGRAM

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SAMPLE SYSTEMS

L20T-112 CONNECTIONS WITH FX

L20T-112 WITH LT-212 EXTENSION CABINET & FX

The internal loudspeaker may be unplugged and an extension cabinet
added, (ensure that the correct impedance socket is used).

FX Controller

8 Ohm

Input

Output

The internal loudspeaker should
be plugged into the 8 Ohms socket.

FX Controller

Output

Input

NOTES

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