Laney GS412PA User manual

GS412PS41 P
A G 2 S
OPERATING INSTRUCTIONS - 1
LA N E Y A M P L I F I C A T I O N
w w w. l a n e y. c o. u k
GS412PA
GS412PS

Laney
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
Page 2/8
S
GS412PA G 412PS
INTRODUCTION
The GS412PA & GS412PS are a pair 4 x 12” cabinets developed for use with amplifiers such as GH50L, GH100L or VH100R from the
Laney range - but equally would a be great addition to your existing guitar amplifier.
Rated at 240W Mono (or 2*120W Stereo) these cabinets can be used in isolation, or together to form an 8 x 12 stack and feature top
quality construction, Celestion Vintage 30 drivers with a larger robust plywood cabinet, switchable impedance, large side bar handles, castor
cups on top of the straight cabinet to allow stacking, stainless steel corner protection and a set of roadworthy casters mounted to each
model for ease of mobility.
Every Laney product is extensively play tested by experienced guitarists to ensure it has the tone and durability to perform at the very
highest level, before being shipped to our customers.
We hope you enjoy using your new extension cabinet as much as we enjoyed designing and making it. It should give you years of trouble-
free service, however please take time to read this manual, as it will allow you to get the best from your GS412PA or GS412PS.
Best wishes from all at Laney.

Page 3/8
GS P GS412PS412A
Laney
www.laney.co.uk
Laney
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PA
INPUT A INPUT B
www.laney.co.uk
Laney
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PS
INPUT A INPUT B
INPUT IMPEDANCE M/S SWITCH OPERATES
A 4 Ohns Mono All Speakers
B 16 Ohms Mono All Speakers
A 8 Ohms Stereo RH Half of Cab
B 8 Ohms Stereo LH Half of Cab
CHECK CONTENTS ARE ALL INCLUDED
1. Open top of carton, remove top foam tray and open protective bag, pull back to sides.
2. Flip carton over. Cabinet rests on its castors.
3. Remove the Carton, bottom foam tray and protective bag.
4. Enjoy.
UNPACKING INSTRUCTIONS
Always use good quality speaker cables
ITEM NO. DESCRIPTION QTY
1 Cabinet 1
2 Top Foam Tray 1
3 Bottom Foam Tray 1
4 Cardboad Inserts 2
5 User Manual 1
SPECIFICATIONS GS412PA GS41PS
Impedance Switchable Impedance
Loudspeaker 4 x 12" Celestion Vintage 30
Power Rating Mono 240W RMS Stereo 2*120W RMS
Size W*D*H 758*358*758
Weight 42.5 Kg

Laney
Page 4/8
S
GS412PA G 412PS
SAMPLE SYSTEMS
Stereo system using
2* GH50L Heads
1* GS412PA
& FX Controller
Connected to the single
16 ohm socket.
www.laney.co.uk
Laney
POW ER TO T HE M US IC
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
MADE IN CHINA
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PA
INPUT A INPUT B
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
SERIAL NO.
1*16 OHM
MAXIMUM POWER CONSUMPTION
300 WATTS
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.
CAUTION - TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONEL.
ATTENTION REMPLACER LE FUSIBLE PR LE MEME
ET CALIBRE
ATTENTION DEBRACHER A LA PRISE SECTEUR AVANT D’OUVRIR
MADE IN THE U.K.
www.laney.co.uk
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
CLASS 2 WIRING MAY BE USED
INOUT LINE
PREAMP POWERAMP
FOOTSWITCH EL34 6L6/
5881
BIAS
ONLY FOR USE
WITH LANEY FS4
INSERT RETURN
LEVEL
RETURNSEND
BYPASS SIDE/
CHAIN
INSERT
SENDRETURNRETURNRETURN
EFFECTS LOOPEFFECTS LOOP
OVERDRIVE CHANNEL BCLEAN CHANNEL A
A+B
SEND 0 10
4 *12 system using
1* VH100R Head
1* GS412PA
Input FX Controller
Output
LH
Output
RH
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 : GH50L
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 N1646N1646
T1A L
MAINS FUSE
~220-240V = T2A L
~100-120V = T5A L
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
FOOTSWITCH
BYPASS
SIDE/
CHAIN INSERT
SEND RETURN
5
4
3
2
1
010
9
8
7
6
FX RETURN
LEVEL
SLAVE IN SLAVE OUT BIAS
Made in the UK
www.laney.co.uk
SLAVE
POWER TO TH E MU SI C
1*8 OHM
2*16 OHM
www.laney.co.uk
Laney
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
MADE IN CHINA
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PA
INPUT A INPUT B
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 : GH50L
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 N1646N1646
T1A L
MAINS FUSE
~220-240V = T2A L
~100-120V = T5A L
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
FOOTSWITCH
BYPASS
SIDE/
CHAIN INSERT
SEND RETURN
5
4
3
2
1
010
9
8
7
6
FX RETURN
LEVEL
SLAVE IN SLAVE OUT BIAS
Made in the UK
www.laney.co.uk
SLAVE
POWER TO TH E MU SI C
1*8 OHM
2*16 OHM
Connected to the two
single 8 ohm sockets.

Page 5/8
GS P GS412PS412A
Laney
SAMPLE SYSTEMS
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 : GH50L
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 N1646N1646
T1A L
MAINS FUSE
~220-240V = T2A L
~100-120V = T5A L
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
FOOTSWITCH
BYPASS
SIDE/
CHAININSERT
SEND RETURN
5
4
3
2
1
010
9
8
7
6
FX RETURN
LEVEL
SLAVE IN SLAVE OUT BIAS
Made in the UK
www.laney.co.uk
SLAVE
POWER T O TH E MU SIC
1*8 OHM
2*16 OHM
Connected to the two
16 Ohm sockets.
www.laney.co.uk
Laney
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
MADE IN CHINA
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PA
INPUT A INPUT B
www.laney.co.uk
Laney
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
MADE IN CHINA
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PS
INPUT A INPUT B
8 *12 stack system using
1* GH50L Head
1* GS412PA
1* GS412PS

Laney
Page 6/8
S
GS412PA G 412PS
SAMPLE SYSTEMS
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
SERIAL NO.
1*16 OHM
MAXIMUM POWER CONSUMPTION
300 WATTS
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.
CAUTION - TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONEL.
ATTENTION REMPLACER LE FUSIBLE PR LE MEME
ET CALIBRE
ATTENTION DEBRACHER A LA PRISE SECTEUR AVANT D’OUVRIR
MADE IN THE U.K.
www.laney.co.uk
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
CLASS 2 WIRING MAY BE USED
INOUT LINE
PREAMP POWERAMP
FOOTSWITCH EL34 6L6/
5881
BIAS
ONLY FOR USE
WITH LANEY FS4
INSERT RETURN
LEVEL
RETURNSEND
BYPASS SIDE/
CHAIN
INSERT
SENDRETURNRETURNRETURN
EFFECTS LOOPEFFECTS LOOP
OVERDRIVE CHANNEL BCLEAN CHANNEL A
A+B
SEND 0 10
Input FX Controller
Output
LH
www.laney.co.uk
Laney
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
MADE IN CHINA
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PA
INPUT A INPUT B
www.laney.co.uk
Laney
DESIGNED AND ENGINEERED
IN THE UK BY LANEY
SERIAL NUMBER:
4 OHMS
8 OHMS
MONO
STEREO
MADE IN CHINA
POWER RATING:
MONO = 240W RMS
STEREO = 2*120W RMS
16 OHMS
8 OHMS
MODEL = GS412PS
INPUT A INPUT B
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
SERIAL NO.
1*16 OHM
MAXIMUM POWER CONSUMPTION
300 WATTS
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.
CAUTION - TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONEL.
ATTENTION REMPLACER LE FUSIBLE PR LE MEME
ET CALIBRE
ATTENTION DEBRACHER A LA PRISE SECTEUR AVANT D’OUVRIR
MADE IN THE U.K.
www.laney.co.uk
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
CLASS 2 WIRING MAY BE USED
INOUT LINE
PREAMP POWERAMP
FOOTSWITCH EL34 6L6/
5881
BIAS
ONLY FOR USE
WITH LANEY FS4
INSERT RETURN
LEVEL
RETURNSEND
BYPASS SIDE/
CHAIN
INSERT
SENDRETURNRETURNRETURN
EFFECTS LOOPEFFECTS LOOP
OVERDRIVE CHANNEL BCLEAN CHANNEL A
A+B
SEND 0 10
Output
RH
Stereo system using
2* VH100R Heads
1* GS412PA
1* GS412PS
& FX Controller

Page 7/8
GS P GS412PS412A
Laney
This product conforms to the requirements of the following European Regulations, Directives & Rules:-
CE Mark (93/68/EEC), Low Voltage (72/23/EEC), EMC (93/68/EEC),
RoHS (EU2002/95/EC), WEEE (EU2002/96/EC)
In order to reduce environmental damage, at the end of its useful life, this product must not be disposed of along with normal
household waste to landfill sites. It must be taken to an approved recycling centre according to the recommendations of the WEEE
(Waste Electrical and Electronic Equipment) directive applicable in your country.
IMPORTANT SAFETY INSTRUCTIONS
Duration Per Day
In Hours
8
6
4
3
2
1 ½
1
½
Sound Level dBA,
slow response
90
92
95
97
100
102
105
110
1). Read & Retain these Instructions carefully before installing or operating this product.
2). Comply with Warnings: All warnings and instructions for these products should be adhered to.
3). Unpacking: On unpacking your product please check carefully for any signs of damage that may have occured whilst in transit from the Laney factory to your dealer. In the unlikely
event that there has been damage, please repack your unit in it original carton and consult your dealer. We strongly advise you to keep your original transit carton, since in the unlikly
event that your unit should develop a fault, you will be able to return it to you dealer for rectification securely packed.
4). Amplifier Connection: In order to avoid damage , it is advisable to establish and follow a pattern for turning on and off your system. With all system parts connected, turn on
source equipment, tape decks, cd players, mixers, effects processors etc, BEFORE turing 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 level control is set to a minimum, any transients from other equipment should not reach your loud speakers. Wait till all
system parts have stabillised, usually a couple of seconds. Similarly when turning off your system always turn down the level controls on your guitar amplifier and then turn off its power
before turning off other equipment
5). Cables: Never use shielded or microphone cable for any speaker connections as this will not be stubstantial enough to handle the amplifier load and could cause damage to your
complete system.
6). Caution: These professional loudspeaker systems are capable of generating very high sound pressure levels. Use care with placement and operation to avoid excessive levels that
can cause permament hearing damage.
7). 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 permissible noise level exposure in the chart oposite.
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 oposite. 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.
8). Servicing: The user should not attempt to service these products. Refer all servicing to qualified service
personnel

In the interest of continued product development, Laney reserves the right to amend product specification without prior notification.
POWER TO THE MUSIC
Laney
LA N E Y A M P L I F I C A T I O N
w w w. l a n e y. c o. u k