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Laney

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 marked 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 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 exposure. (See oposite).
      According to OSHA, any exposure in excess of the 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.

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

Page

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Summary of Contents for GH50L

Page 1: ...POWER TO THE MUSIC Laney w w w l a n e y c o u k LA N E Y AM P L I F I C A T I O N 50W ALL TUBE GUITAR HEAD AMPLIFIER GH50LOPERATING INSTRUCTIONS 2 2 ...

Page 2: ...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...

Page 3: ...nnerhalb 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 e...

Page 4: ...sing your GH50L as much as we enjoyed designing and making it Best wishes from all at 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 stret...

Page 5: ...er gain or how dirty your sound is This control should be used in conjunction with the MasterVolume 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 MasterVolume will give a nice crisp bluesy lead tone again with the ability to drive the output stage at higherVolume settings Setting ...

Page 6: ...ound 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 ...

Page 7: ...SPEAKERS 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 GH50L amplifier without a loudspeaker connected could resul...

Page 8: ... 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 ef...

Page 9: ...lly 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 FOOTSWITCH Connect a Laney FS1 footswitch here to allow remote switching of the front panel drive switch The Drive switch needs to be in the ON position for the footswitch to operate The footswitch shorts the tip ring together on a mono jack SERIAL NO Displ...

Page 10: ...7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 PRESENCE PRESENCE PRESENCE PRESENCE BASS BASS BASS BASS MIDDLE MIDDLE MIDDLE MIDDLE TREBLE TREBLE TREBLE TREBLE MASTER VOLUME MASTER VOLUME MAS...

Page 11: ...5 4 3 2 1 0 10 9 8 7 6 PRESENCE BASS MIDDLE TREBLE MASTER VOLUME GAIN DRIVE POWER STANDBY 1 0 HI LO RESONANCE INPUT ON OFF ON OFF 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 5 4 3 2 1 0 10 9 8 7 6 PRESENCE BASS MIDDLE TREBLE MASTER VOLUME GAIN DRIVE POWER STANDBY 1 0 HI LO RESONANCE INPUT ON OFF ON OFF 5 ...

Page 12: ... problems with preamp tubes can be a crackly noise hiss hum and microphony The preamp tubes can safely be changed with no 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 ...

Page 13: ...hen 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 Servicing The user should not attempt to service these products Refer all servicing to qualified service personnel Cables Never use shielded or microphone cable for any speaker connections as this will not be substantial enough to handle the ampli...

Page 14: ...ANEY SAMPLE GS412IS 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...

Page 15: ...t directive applicable in your country SupplyVoltage 100V 120V 220V 230V 240V 50 60Hz Factory Option Mains Fuse 220V 240V T2A L 250V 100 120V T5A L 250V HT Fuse T1A L Power Consumption 200W Output Power Rating 50W Features Pure Class A BValve tone 2xEL34B STR Power Tubes Matched Set TAD 4x12AX7 Preamp tubes Premium TAD ECC83 Hi Lo Gain Inputs Rugged construction Selectable FX Loop with Level Contr...

Page 16: ...TO THE MUSIC Laney In the interest of continued product development Laney reserves the right to amend product specification without prior notification w w w l a n e y c o u k LA N E Y AM P L I F I C A T I O N ...

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