A1 Integrated
INSTALLATION
Issue 2: 05
th
March 2008
Page 6
of
13
INTRODUCTION
Congratulations on the purchase of the new A1 Class A
Integrated amplifier. Great attention has been paid to internal
layout, isolating each circuit section to prevent possible
interaction.
The unit features a top quality USB input DAC to allow direct
connection to a PC or MAC for listening to MP3/WAV or
other digital music storage formats.
The preamplifier sections are our finely tuned and tweaked
preamplifier, for smooth sound coupled with low noise and
virtually no distortion. The preamp section includes a top
quality low noise phono stage which caters for MM cartridge
users.
The power amplifier consists of two class-A amplifier
modules with separate supplies for the absolute best in
separation and imaging. Generously rated, they are enough to
drive even the most demanding loudspeakers with ease. Low
distortion and very quiet they will deliver all music types
exactly as the artist originally intended.
The resultant performance achieved by this unit is among the
best in the world. It has excellent signal to noise ratio, low
distortion, wide bandwidth and dynamic range, with
extraordinary resolution and fine detail.
CLEANING
Before cleaning the unit, switch off power at the mains switch
and remove the mains plug from the wall socket.
Clean the cabinet and remote control unit using a moist cloth.
Using solvents, white spirit or thinners is not advised, as they
could damage the surface finish.
INSTALLATION
Position the A1 on a stable, horizontal surface where there is
no risk of it being knocked, or subjected to vibration such as
from loudspeakers.
Important note:
As a “CLASS A” amplifier, the unit dissipates a quantity of
power at all times, and it is important that it is adequately
ventilated. The sides are perforated to allow the smooth flow
of heat through the unit. It is therefore not recommended that
the unit is enclosed in a cabinet or placed where the ventilation
holes on the sides are impeded as this could result in the unit
cutting out due to excessive heat build-up.
The A1 must be protected from humidity - if the unit is
moved from a cold place to a warm room, leave the unit for an
hour or so to allow sufficient time for the moisture to
evaporate.
POWER CONNECTIONS
The A1 is supplied with a standard IEC mains cable which
plugs into the IEC socket at the back of the unit (see P.7)
AUDIO CONNECTIONS
Analogue Inputs:
Connect all analogue sources to relevant
analogue inputs (see p.7 For more information). Use good
quality fully connected (signal and ground) coaxial phono
cables for all signal connections.
USB Input:
Connect a USB A to B (not supplied) cable
between computer and USB input if required.
Please note: The USB input is a USB Digital to Analogue
Converter (DAC), not a “host controller”. It therefore does
NOT support direct streaming from USB players, media,
drives etc. It only functions with a personal computer/PDA
or equivalent attached.
Outputs
: Connect loudspeakers to the terminals on the back
panel marked as
LEFT
and
RIGHT SPEAKER
outputs
The
TAPE
output allows loop through of analogue signals
for example, to pass on to recorder or monitor. It is also the
ideal output to connect our headphone amps into.
The
PRE-OUT
output allows analogue signals controlled by
the volume, to pass on to a second amplifier. This is useful
for bi-amping.
