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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. 

Best wishes from all at Laney

INTRODUCTION

L20T

-112

Summary of Contents for L20T-112

Page 1: ...ALL TUBE CLASS A HERITAGE AMPLIFIER L20T 112OPERATING INSTRUCTIONS 1 3 ...

Page 2: ...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 b...

Page 3: ...rhalb 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 eine...

Page 4: ...0 V 5 0 6 0 H z P re set Factory O p tion 1 0 0 1 1 0 1 2 0 V T 1 6 A L 2 5 0 V 2 2 0 V 2 4 0 V T 6 3 0 mA L 2 5 0 V C u stom Design ed 1 2 M in imu m 8 O h m Imp ed an ce FX Loop sid e ch ain typ e n omin al 7 5 0 mV level T 3 1 5 mA L 2 5 V Birch p lyw ood cab in et con stru ction for op timu m sou n d q u ality an d road w orth in n ess 5 0 W 2 0 W FS2 For C lean DriveC h an n el R everb O N O ...

Page 5: ...st 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 ...

Page 6: ...tyle 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 ple...

Page 7: ...l 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 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 CleanVolume Drive control s...

Page 8: ...sounds The reverb in the L20T 112 is a legendary Sound Enhancements aka Accutronics reverb the only choice for that authentic reverb sound 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 amplification chain This has the ability to not only control the overall top end response but also reduce uppe...

Page 9: ...d 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...

Page 10: ...L20T 112 features aTilting Mechanism to allow use in either the upright or tilted back position Employez cette caractéristique de conception avec prudence en raison de la facilité avec laquelle l amplificateur peut être déplacé entre directement et en arrière inclinées des positions seulement utilisation l amplificateur sur une surface de niveau et stable N actionnez pas l amplificateur sur un bur...

Page 11: ...QUICK START SETTINGS suggestions only experiment L20T 112 ...

Page 12: ...USER SETTINGS Store your own cool sounds L20T 112 ...

Page 13: ...s 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 ot...

Page 14: ...r 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 ...

Page 15: ...hm L20T 112 WITH LT 212 EXTENSION CABINET FX Input Output FX Controller The internal loudspeaker may be unplugged and an extension cabinet added ensure that the correct impedance socket is used The internal loudspeaker should be plugged into the 8 Ohms socket L Z B1 2 3 4 L Z B1 2 3 4 ...

Page 16: ...NOTES L20T 112 ...

Page 17: ......

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