Laney TT20, TTH20 Owner's Manual

TT20 & TTH20

USER MANUAL

Laney

Classic British Amplification

Newlyn Road, Cradley Heath, West Midlands. B64 6B£

www.laney.co.uk

Dear Laney customer,

Thank you for taking the time to try out and ultimately purchase a Laney
amplifier.

Here at Laney we take great care in everything we design and build, 35
years of combined experience goes into each and every product. When
you’re producing Tube Tone heritage is everything.

I am sure with a little care and attention your Laney amplifier will give you
many years of faithful service.

Page 2

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. All safety and operating instructions should be retained for future reference

3. Obey all cautions in the Operating instructions and on the back of the unit

4. All operating instructions should be followed

5. This product should not be used near water, i.e. a bathtub, sink, swimming pool, wet basement, etc.

6. 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.

7. This product should not be placed near a source of heat such as stove, radiator, or another heat producing
amplifier.

8. Connect only to a power supply of the type marked on the unit adjacent to the power supply cord.

9. Never break off the ground pin on a power supply cord.

10. 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.

11. The power supply cord should be unplugged when the unit is to be unused for long periods of time.

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

13. 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.

14. Care should be taken so that objects do not fall and liquids are not spilled into the unit through any
ventilation holes or openings.

15. A qualified service technician should check the unit if:

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.

16. The user should not attempt to service the equipment. All service work is done by a qualified
service technician.

17. 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.

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.

Lightning Bolt Symbol:
This symbol is used to alert the user to the presence
of dangerous voltages and the possible risk of
electric shock.

Exclamation Mark Symbol:
This symbol is used to alert the user to make special note of
important operating or maintenance instructions found in the

!!

reference manual.

SAVE THESE INSTRUCTIONS

Page 3

INTRODUCTION

Congratulations on your decision to purchase a Laney amplifier.

Laney products are designed with ease of operation as a primary objective, however to ensure you derive the best from your
new amplifier, it is important you take time to read this user manual and to familiarise yourself with the control functions and
facilities available

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.

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

This manual has been written for easy access of information. The front and rear panels of each unit 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 valve amplifier has undergone a thorough two stage, pre-delivery inspection, involving actual play testing, as well
as valve burn in. Valves are the most important component in your Laney valve amp. However they are also the most fragile
component. The glass envelope and valve filaments can easily be damaged in transit without any apparent signs of damage to
the box, amp or valves. Valve damage is however quite simple to diagnose and even more simple to remedy. These
procedures are explained later in this manual..

When you first recieve your Laney valve amp, follow these simple procedures:

(i) Ensure that the amplifier is set at the correct voltage for the country it is to be used in.

(ii) Connect your instrument with a high quality sheilded instrument cable. Use of cheap cables will compromise the sound of
your instrument and your amplifier.

If there is a problem with your Laney valve amplifier please contact the store where you purchased your amplifier and they will
help you resolve the problem.

Care of your Laney amplifier will prolong it's life.....and yours!. If you follow these guidelines your equipment will give you

years of playing pleasure

Page 4