Laney GH100TI User manual

100W ALL TUBE
GUITAR HEAD AMPLIFIER
POWER TO THE MUSIC
Laney
GH1 T
00 I
OPERATING INSTRUCTIONS - 2.1
w w w . l a n e y. c o . u k
Tony IommiTony Iommi

SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using electric products, basic cautions should always be followed, including the following.
1. Read all safety and operating instructions before using this product
2. The product should be powered by a three pin `grounded (or earthed) plug connected to a power socket with a grounded earth outlet.
3. All safety and operating instructions should be retained for future reference
4. Obey all cautions in the Operating instructions and on the back of the unit
5. All operating instructions should be followed
6. This product should not be used near water, i.e. a bathtub, sink, swimming pool, wet basement, etc.
7. This product should be located so that its position does not interfere with its proper ventilation. It should not be placed flat against a wall or placed in a built up enclosure that
will impede the flow of cooling air.
8. This product should not be placed near a source of heat such as stove, radiator, or another heat producing amplifier.
9. Connect only to a power supply of the type marker on the unit adjacent to the power supply cord.
10. Never break off the ground pin on a power supply cord.
11. Power supply cords should always be handled carefully. Never walk or place equipment on power supply cords. Periodically check cords for cuts or signs of stress, especially at
the plug and the point where the chord exits the unit.
12. The power supply cord should be unplugged when the unit is to be unused for long periods of time.
13. If this product is to be mounted in an equipment rack, rear support should be provided.
14. The user should allow easy access to any mains plug, mains coupler and mains switch used in conjunction with this unit thus making it readily operable.
15. Metal parts can be cleaned with a damp cloth. The vinyl covering used on some units can be cleaned with a damp cloth or ammonia based household cleaner if necessary.
Disconnect the unit from the power supply before cleaning.
16. Care should be taken so that objects do not fall and liquids are not spilled into the unit through any ventilation holes or openings. On no account place drinks on the unit.
17. A qualified service technician should check the unit if:
18. The user should not attempt to service the equipment. All service work is done by a qualified service technician.
19. Exposure to extremely high noise levels may cause a permanent hearing gloss. 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 exposure.
Duration Per Day In Hours Sound Level dBA, slow response
8 90
6 92
4 95
3 97
2 100
1 ½ 102
1 105
½ 110
¼ or less 115
According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors in the ear canals or over the ears must be
worn when operating this amplification system in order to prevent a permanent hearing loss if exposure exceeds the limits 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.
!The power cord has been damaged
!Anything has fallen or spilled into the unit
!The unit does not appear to operate correctly
!The unit has been dropped or the enclosure damaged.
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PRECAUCION:
PRECAUCION:
ADVERTENCIA:
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.
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.
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.
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.
ATTENTION:
ATTENTION:
ADVERTISSEMENT:
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
Ce symbole est utilise pour indiquer a l’utilisanter qu’il ou qu’elle
trouvera d’importantes instrucions sur l’utilisation et l’entrerien
(service) de l’appareil dans la litterature accompagnant le produit.
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.
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.
VORSICHT:
VORSICHT:
ACHTUNG:
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.
Dieses Symbol soll den Benutzer auf wichtige Instruktionen in der
Bedienungsanleitung aufmerksam machen, die Handhabung und
Wartung des Produkts betreffen.
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.
Um einen elektrischen Schalg oder Feuergefahr zu vermeiden, sollte
dieses Gerat nicht dem Regen oder Feuchtigkeit ausgesetzt werden.
Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.
CAUTION:
CAUTION:
WARNING:
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.
Intended to alert the user of the presence of important operating
and maintenance (Servicing) instructions in the literature
accompanying the product.
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.
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.

BEFORE SWITCHING ON
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.
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, pre-delivery 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!
EARTH OR GROUND - GREEN/YELLOW
NEUTRAL - BLUE
LIVE - BROWN
Laney
OPERATING INSTRUCTIONS
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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 GH100TI is a single channel master volume style head, designed specifically to meet the tonal demands of Tony Iommi. The GH100TI is
equipped for out and out metal with 5 stages of gain permanently engaged and several cunning high gain modifications, this amplifier is the
ultimate partner to one of the most influential players of all time. The hand wired 100W output stage is built to deliver: The harder you
drive it, the better it sounds. The GH100TI is designed to be used with the GS412LA and GS412LS cabinets - to enhance the amplifiers
huge tonal range and produce stunning tone at any volume.
Your GH100TI 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 GH100TI as much as we enjoyed
designing and making it. Best wishes from all at Laney
Laney
OPERATING INSTRUCTIONS
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
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PRESENCE BASS MIDDLE TREBLE MASTER VOLUME GAIN BRIGHT
POWER STANDBY
1
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HILO
RESONANCE
INPUT
BASS
HI INPUT:
LO 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 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.
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.
BASS: Boosts the very low bass frequencies before any distortion is applied. Use this control to clean up or fatten your
bottom end. The sound can become muddy at very high gain levels, depending upon your choice of guitar.
BRIGHT: Adds brightness and sparkle to the upper frequencies. This control is more effective at lower gain settings.
GAIN: Sets the level of tube preamplifier gain or how dirty your sound is. This control should be used in conjunction with the
Master Volume (4) Setting low levels of gain with high levels of volume will give a clean preamplifier sound with tube output
stage overdrive. Setting a medium gain level and medium Master Volume will give a nice crisp bluesy lead tone, again with the
ability to drive the output stage at higher 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 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.
FRONT PANEL CONTROLS
Laney
OPERATING INSTRUCTIONS
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5
5

MASTER VOLUME Sets the overall ‘loudness’ of the amplifier.
-
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)
PRESENCE: An output stage tone control. This adjusts the high frequency response - it adjusts your sound from being dull
to giving it edge / sounding sparkly.
RESONANCE: Adjusts level of Power Tube damping. This allows the player to adjust how tight the bass response is - this
will be dependent on what speaker cabinet used. The Resonance allows you to adjust the bass damping to your particular
taste.
STANDBY: Disconnects the HT supply from the Tubes whilst the heaters still keep them warm. This allows you to switch
out of standby and play without waiting for your amplifier to warm up. This is useful after you have sound checked and you are
waiting to go on stage - leave the amp in standby so its ready to go when performance time comes. Always switch off for
short breaks when you don’t want to wait for the tubes to warm up again.
POWER: Main power switch for the unit. The GH100L features delay turn on circuitry to increase tube life, the HT supply to
the tubes gets switched on only after they have warmed up and are ready to go - approx 30 seconds.
(Always switch off and disconnect the power cord when not in use)
: It is useful to experiment with the gain and volume controls.
If you want a very open, warm and semi overdriven sound try reducing the amount of gain and increasing the 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.
Laney
OPERATING INSTRUCTIONS
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CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
SUPPLY VOLTAGE
HT FUSE
CAUTION
TO REDUCE THE RISK OF FIRE REPLACE
ONLY WITH SAME TYPE AND RATING
MODEL : GH100TI
SERIAL NO.
1*16 OHM
MAXIMUM POWER CONSUMPTION
300 WATTS
CAUTION - TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER. NO USER SERVICABLE PARTS
INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONEL.
WARNING - THIS APPARATUS MUST
BE EARTHED
WARNING - TO REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO
RAIN OR MOISTURE.
ATTENTION REMPLACER LE FUSIBLE
PR LE MEME ET CALIBRE
ATTENTION DEBRACHER A LA PRISE
SECTEUR AVANT D’OUVRIR
Laney
Power To The Music
T1A L
MAINS FUSE
~220-240V = T2A L 250V
~100-120V = T5A L 250V
1*8 OHM 1*4 OHM
2*16 OHM 2*8 OHM
LOUDSPEAKERS
WARNING:
USE ONLY ONE IMPEDANCE
SELECTION AT A TIME
5881/6L6 EL34
BYPASS
SIDE/
CHAIN INSERT
SEND RETURN
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FX RETURN
LEVEL
SLAVE IN SLAVE OUT BIAS
www.laney.co.uk
SLAVE
Made in the UK
POWER INLET SOCKET. Connect to your power source. Make sure the specified voltage is correct for your country!
POWER FUSE: This is 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
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.
BIAS:
LOUDSPEAKERS : Loudspeaker outlets are provided on a series of five jack sockets. The impedance of the
loudspeaker/s should be checked and connected to the appropriate socket/s. Using the incorrect sockets will reduce the life
of your output tubes and won’t sound as good and in extreme cases could damage your amplifier.
IMPORTANT: Operation of your GH100TI amplifier without a loudspeaker connected could result in expensive failure of
your output transformer. DO NOT OPERATE WITHOUT A LOUDSPEAKER CONNECTED. There are dedicated
optimised outputs for the following loudspeaker combinations: 1*16 ohm, 1*8 ohm, 2*16 ohm, 1*4 ohm, 2*8 ohm.
This allows you to bias the amplifier to suit your chosen output tubes. The switch has two positions 5881/6L6 and
EL34. We recommend the use of matched sets of output tubes for best performance. Ensure the switch is in the correct
position otherwise you risk damaging your amplifier.
¼” (6.3mm)
Laney
OPERATING INSTRUCTIONS
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Laney
OPERATING INSTRUCTIONS
SLAVE OUT: The slave out gives the user an output for driving other amplifiers. This is useful in multi-amp setups where a
single preamp can drive several GH power stages. This can be done by simply daisy chaining SLAVE OUT’s to SLAVE IN’s. The
Slave Out is an (unbalanced) line level output.
SLAVE IN: The Slave in socket provides the user with an input to the power amplifier stage. The Slave in is only operative
when the FX switch is in Side Chain or Insert mode. When a Jack is connected to the Slave In socket the preamp signal does
not pass to the power amp.
FX RETURN LEVEL: This control serves two purposes.
1) In Side chain mode it controls the level of the FX Return signal mixed with the dry signal.
2) In Insert mode it behaves as an overall level control. (See 14)
EFFECTS LOOP RETURN: Connect the output from your external effects to this socket. The effects loop allows 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 unit via the ‘Return’ socket. A notable feature on the GH products is you
won’t lose sustain when the FX loops are in use. This is because the power stages are still driven by a tube FX loop buffer.
EFFECTS LOOP SWITCH: This allows the effects loop to operate in three distinct modes:
1) Side Chain: The return signal is mixed with the dry signal, the level of FX return is controlled by the FX return
level control. This allows you to set the right mix between the dry signal and the effects signal.
(When the Effects loop switch is in ‘Side Chain’ mode the Slave in socket is operative)
2) Insert: The return signal is buffered and sent directly to the output tubes, no mixing with the dry signal happens.
The wet/dry mix is adjusted within the external FX processor. The FX return level control then acts as overall level
control allowing you to make up for any insertion loss that may occur in the FX processor.
Warning: In insert mode with the FX return level control at minimum the amplifier will have no output, good
normal level for this control is ‘5’ which is approx unity gain.
(When the Effects loop switch is in ‘Insert’ mode the Slave In socket is operative)
3) Bypass: The FX loop circuitry is switched out of circuit altogether.
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 tremolo’s, 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.
SERIAL NO: Displays the model and serial number of the unit.
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Laney
OPERATING INSTRUCTIONS
QUICK START SETTINGS - suggestions only, experiment!
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PRESENCE BASS MIDDLE TREBLE MASTER VOLUME GAIN BRIGHT
POWER STANDBY
1
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HILO
RESONANCE
INPUT
BASS
On OnOn
Tony’s Settings
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PRESENCE
PRESENCE
PRESENCE
BASS
BASS
BASS
MIDDLE
MIDDLE
MIDDLE
TREBLE
TREBLE
TREBLE
MASTER VOLUME
MASTER VOLUME
MASTER VOLUME
GAIN
GAIN
GAIN
BRIGHT
BRIGHT
BRIGHT
POWER
POWER
POWER
STANDBY
STANDBY
STANDBY
1
1
1
0
0
0
HI
HI
HI
LO
LO
LO
RESONANCE
RESONANCE
RESONANCE
INPUT
INPUT
INPUT
BASS
BASS
BASS
USER SETTINGS - Store your own cool sounds