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IMPORTANT YOU MUST READ THIS FIRST!
Box contents:
Amplifier, remote control, mains lead, manual.
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 in the correct position, firmly in place. The
valves and sockets are numbered. The large KT150
valves need fitting in sockets V1 and V2. Continue
fitting the 3 other valves in V3, V4, V5 (3x 6SN7)
6SN7=CV181/6N8.
YOU MUST OBSERVE THE
CENTRAL "SPIGOT" WHEN INSERTING THE
VALVES.
Inserting the valves incorrectly will damage
both valves and amplifier and will not be covered by
the warranty.
Do not push or pull the valves excessively by the
glass envelope, this could cause the glass envelope
to become detached from the base, damaging the
valve. Take care to observe the alignment of the
centre spigot when inserting all valves.
3 Connect to source units, e.g. CD, Tuner, Tape,
Phono pre amp (if used) etc via appropriate phono
sockets.
4 Connect to speakers Modern speaker impedance
can fall as low as 3 Ohms and rise as high as 20
Ohms,
so
the
"nominal"
manufacturers has little practical meaning, therefore
you may wish to try both, most people prefer the
results at 8 Ohms, but the type of speaker and room
acoustics can also have a big affect, so choose by
personal preference.
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. (A second banana plug
may be fitted vertically in the hole of the socket
stem).
5 Connect to mains supply using supplied IEC
mains lead to your wall 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
Green/Yellow to Earth.
6 Before switching on make sure that the
"standby switch" is in the "up" position.
SWITCH ON! The meter should light up. Leave for at
least 60 seconds for the valves to warm up, and then
push the "standby" switch into the "down" position.
The amplifier should now be working. All valves
should have a visible orange glow from the cathode
heaters. With the volume control set to minimum
(fully anti-clockwise) there should be no sound
coming from the speakers except a barely discernible
gentle hum. If there are any unpleasant sounds
2 QUICK SET UP GUIDE
figure
quoted
to
Neutral
terminal
coming from the speakers, switch off and refer to the
'Trouble Shooting' section or contact Icon Audio.
Check the BIAS of the KT150s by switching the Bias
switch "up" and then "down".
If you do not intend to use the amplifier for a for a few
hours you can switch into "standby", it will then use
minimal power and be ready for use "instantly". In
standby you may hear low distorted sound from the
speakers this is normal, reduce the volume during
this time.
7 Your amplifier should now be working. If not
check
wiring
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. You may need to remove plastic
tape (if any) to activate. 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 is.
Please note all these things are normal for valve
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.
by
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" when new.
If this is regular problem it could be your CH
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
unplug
when
amplifiers
there
voltages inside (over 400v DC), which when
switched
off
discharge! Do not remove bottom panel unless you
and
are a competent engineer. There are no user
serviceable parts inside. Like other household
electrical 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.
again
and/Use
selector/tape
amplifiers:
in
these
circumstances.
making
adjustments.
are
potentially
lethal
can
take
twenty
minutes
Always
Like
all
high
to
Page 3
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