AVI Pre-Amplifier Owners manual

The AVI Laboratory Series Preamplifier

Owners Instruction Manual

For the use, care and maintenance of your Preamplifier

AVI Ltd

Suite 7 Lightpill Mill

Bath Road Trading Estate

Stroud

Glos. GL5 3QF

Tel: [phone]

Fax: [phone]

[e-mail]

www.avihifi.com

Introduction

Thank you for purchasing an AVI Laboratory Series preamplifier. As the name
implies it is a precision instrument, meticulously hand built and tested and,
given the right circumstances will produce the best sound quality that
technology will allow.

We recommend that before you attempt to use your new preamplifier, you
carefully read the following instructions.

Installation

The preamplifier can have other units of the same size stacked on top of it but
it should be in a well ventilated, and not unduly dusty environment. If you are
using an AVI amplifier with another manufacturers products that “plop or click”
on switch on, then they should be turned on first and allowed a few seconds to
stabilise before switching on the power amplifier. An amplified “plop or click”
can sometimes damage loudspeakers.

Use good quality, screened coaxial phono to phono leads to connect CD players,
tuners, record players, VCR and DVD players. The make is not important but
the quality is. Locking phono plugs are inadvisable as are unscreened
interconnects.

AVI amplifiers are designed to be largely immune from cable effects
provided the correct type is used.

AVI products are exceptionally reliable but many of the faults we deal with are
damaged phono sockets caused by people who are not getting satisfactory
results and believe changing cables may cure the problem. This is extremely
unlikely as the biggest differences you will hear are caused by room acoustic
problems and then ancillaries like CD players and more particularly
loudspeakers. Many shops have appalling dem rooms with the result that
customers often end up with unsatisfactory loudspeakers, therefore if you are
worried about the sound you are getting, please contact us and, provided you
are able to describe reasonably accurately what it is that you do not like, we
will advise.

Power Amplifier Choice

Your Laboratory Series Preamplifier is capable of extremely high quality sound
reproduction and, although designed for use with AVI power amplifiers, can
drive a wide range of power amplifiers and active speakers.

The Remote Control Handset

All AVI products now use standard Philips RC5 codes and the Laboratory Series
Preamplifier comes with a One for All Handset. This can control up to four units,
all from different manufacturers. An AVI owner can customise this handset to
suit any system or, because the amplifier uses widely accepted codes, it may
be that a handset already in your possession will control it.

The One for All handset has comprehensive instructions for customising it to
suit your requirements and we suggest that you program the MD button to
operate your Laboratory Series Integrated Amplifier. The code number is

121142.

Control functions for the Laboratory Series Preamplifier are as follows:

Standby: Puts preamp into standby. NB. Only the

program up down control will bring it out of
standby again.

Program up/down brings unit out of standby (and back to last

input selected) and changes input selected.

Volume up/down controls volume and brings unit out of

mute.

Mute Press to mute and press again to regain

sound.

All these controls are located together in the lower half of the handset.

Phono Stage (if fitted)

If your preamplifier has been fitted with a phono stage then it will operate from
the Disc button on the front panel and the two phono sockets on the left rear
(viewed from the front). It is best to ask your dealer to select moving coil or
moving magnet for you but if you do it yourself you must observe the following
instructions.