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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. The EL34s should be fitted
first observing the numbers 1, 2 , 3, 4 on the rear
of the valve; this corresponds with the four
sockets nearest the transformers) from left to right
viewed from the front. This is essential as each
valve is 'set up' in this position.
The small valves are normally numbered 5, 6 and
7 and should be gently pushed into place. The
middle one is a 6SL7, the outside pair are 6SN7.
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.
Please
note
the
interchanable with the EL34/KT88s this could
be dangerous and will damage the amplifier.
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 4ohms.
Don't forget to get the correct polarity of speaker
cables. (See speaker connections 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 240v supply. If for some reason
the welded plug must be removed, please
remove fuse and dispose of 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
Neutral terminal and Green/Yellow to Earth.
6A Put the STANDBY switch in the "up"
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 With the volume control set to minimum
(fully anti-clockwise) push the "Standby"
switch down. After a brief "Whum" sound there
should be no sound coming from the speakers
except a barely discernable gentle hum. If there
are any unpleasant sounds coming from the
IMPORTANT READ THIS FIRST
2 QUICK SET UP GUIDE
6SN7/6SL7s
are
not
speakers, switch off and refer to the 'Trouble
Shooting' section or contact Icon Audio.
If your unit is fitted with the optional HT delay
timer, operation will begin after the unit switches
the HT on (approx 40-70 secs), your may hear
very low distorted sound from the speakers during
the warm up time. This is normal. We suggest you
reduce the volume until the HT cuts in.
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.
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 for a few weeks.
D, Mobile phone 'breakthrough' is normal.
E, Valves may make a 'tinkling' sound when
warming up and cooling down.
F, One channel may come on before the other at
switch on.
G, The volume control may sometimes appear to
sound 'Scratchy', this is not a fault! H, There may
be a 'click' when switching off.
H, Valves occasionally "Pop" or "Crackle". It 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
400v 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.
and/Use
selector/tape
could
be
your
CH
in
these
household
electrical
Page 3
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