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Box contents:
Amplifier, remote control, mains lead, manual,
bias meter.
1 Unpack unit carefully and check that it is in
good condition. Transit damage must be reported
to Icon Audio within 3 days. It is important that you
keep packaging for warranty/service return.
2 If Necessary fit the valves, or check that they
are firmly in place.
Fit the 2A3s first using the numbers 1,2,3,4 on the
valve; in the four sockets marked 1,2,3,4 left to
right viewed from the front. This is essential as
each valve is 'set up' in this position.
IMPORTANT! Make sure the small and large pins
are lined up correctly. Otherwise damage to both
valve and amplifier may result which will not be
covered by the warranty. SEE DIAGRAM ON P3.
Do not push or pull the output valves by the
glass envelope, this could cause the glass
envelope to become detached from the base,
damaging the valve. Note the orientation of the
smaller and larger pins of the 2A3s.
The small valves are normally numbered 1, 2, 3
and should be gently pushed into place. The
middle one is a 6SL7, the outside pair are 6SN7.
The 274B rectifier valve should be fitted in the
centre position.
3 Connect to source units, e.g. CD, Tuner,
Tape, Phono pre amp (if used) etc via appropriate
phono sockets.
4 Connect to speakers making sure that the
correct impedance (ohms) is chosen, (see back of
speakers). Most modern speakers are 6 ohms
which so this is not critical (see Ch 3), if you are
not sure start by using the 8 ohms (and "0")
terminals. Don't forget to get the correct polarity of
speaker
cables.
(See
chapter). If 'bi-wiring' both 'common' should go to
the black terminal, and both 'positive' (or red)
should go to either 4 or 8 ohm terminals.
5 Connect to mains supply using supplied IEC
mains lead to 230/240v supply. If for some
reason the welded plug must be removed,
please
remove
fuse
immediately. (As they can be a danger to
children if plugged in). The replacement plug
should be wired in the following way Brown to Live
terminal,
Blue
to
Green/Yellow to Earth.
6A Put the STANDBY switch in the "down"
position.
6B SWITCH ON! The blue mains indicator should
light up and the valves will take approximately 60
seconds to start working. All valves should have a
visible orange glow from the cathode heaters.
6C The Volume control will "re-set" on switch on
to aprox "9pm" position. There should be no
sound coming from the speakers except a barely
IMPORTANT READ THIS FIRST
2 QUICK SET UP GUIDE
speaker
connections
and
dispose
of
Neutral
terminal
and
discernable
gentle
hum.
unpleasant sounds coming from the speakers,
switch off and refer to the 'Trouble Shooting'
section or contact Icon Audio.
The 274B valve rectifier acts as a HT delay on
switch on. If you do not intend to use the amplifier
for a few hours you can switch put into "standby",
when it will use minimal power and be ready for
use "instantly". In standby you may hear low
distorted sound from the speakers if you have a
source playing. This is normal, reduce the volume
during this time.
7 Your unit should now be functioning. If not
check
wiring
again
monitor/volume to choose source program and
suitable listening volume. Do not operate at a high
volume for the first five minutes to allow the valves
to warm up properly.
8, Remote Control. If the batteries are OK (2x
AAA) the LED should light when any of the keys
are pressed. A little skill is needed in pointing and
pressing, as the unit has a motorised "pot" which
may not be as responsive as your TV.
Please note all these things are normal for
valve amplifiers:
A, Valves can get very hot, BEWARE!
B, The transformer cover will get quite warm
C, The amplifier may smell slightly for a few weeks.
D, Mobile phone 'breakthrough' is normal.
E, Valves may make a 'tinkling' sound when
warming up and cooling down.
F, The volume control may sometimes appear to
sound 'Scratchy', this is not a fault!
G, Valves occasionally "Pop" or "Crackle". If this is
regular
problem
it
boiler/cooker/fridge etc. (see trouble shooting).
8 Health and Safety. The valves when operating
have high surface temperatures. Keep out of
reach of children and pets. The use of the
supplied
guard
is
recommended
circumstances. Always unplug when making
adjustments. Like all amplifiers there are
potentially lethal high voltages inside (over
300v DC), which when switched off can take
twenty minutes to discharge! Do not remove
bottom panel unless you are a competent
engineer. There are no user serviceable parts
inside.
Like
other
appliances do not leave unattended whilst
switched on. Do not adjust the output valve grid
bias pre sets without reference to the manual.
Incorrect adjustment could cause the valves to
overheat, with resulting in damage to valves and
amplifier.
To maintain the best performance of the
amplifier you should check the bias of the
output valves from time to time (say twice a
year). Full details will be found in section 7.
If
there
are
any
and/Use
selector/tape
could
be
your
CH
in
these
household
electrical
Page 3
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