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IMPORTANT READ THIS FIRST
2 QUICK SET UP GUIDE
1 Unpack unit carefully
. Make sure that it is in
good condition. If not report to Icon Audio. 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 300Bs should be fitted
first observing the numbers 1,2,3,4 on the rear of
the valve, this corresponds with the four sockets
from left to right viewed from the front. This is
essential as each valve is ‘set up’ in this position.
To prevent inserting the wrong way round, each
valve has 4 pins which are different sizes and
spacing. But if forced, it is possible to insert the
valve the wrong way. This will ruin the valve and
damage the amplifier. NOTE THAT THE EACH
PAIR OF SOCKETS IS ROTATED BY 180°.
Do not push or pull the 300Bs by the glass
envelope
, this could cause the glass envelope to
become detached from the base, damaging the
valve. The small valves are also numbered
1,2,3,4, and should be inserted left to right.
(12AT7= ECC81, outside pair, 6SL7/6188 inside
pair). It is normal for the small valves to feel a little
loose.
3 Connect to source units
, e.g. CD, Tuner,
Tape, Phono pre amp (if used) etc via appropriate
phono sockets.
4 Connect to speakers
(4 to 16 ohms) Make
sure that you connect your speaker cables
maintaining the correct polarity. (See speaker
connections chapter). If ‘bi-wiring’ both ‘common’
should go to the black terminal, and both ‘positive’
(or red) should go to 8 ohm terminals.
5 Connect to 230/240v mains
supply using
supplied IEC mains lead.
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 terminal.
6 SWITCH ON!
The blue mains indicator should
light up and unit will take approximately 40
seconds to start 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 discernable gentle
hum. If there are any unpleasant sounds coming
from the speakers, switch off and refer to the
‘Trouble Shooting’ section or contact Icon Audio.
If your unit is fitted with the 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 because there is virtually no
HT to operate the
amplifier. We suggest you
reduce the volume until the HT cuts in.
The red light on the front indicates when the HT
delay is operating.
7 Your unit should now be functioning
. If not
check
wiring
again
and/Use
selector/tape
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.
Remote Control
The remote control can be found in the bottom of
the box. It controls the volume by means of a
motorised volume pot.
Pressing “mute” will reduce
the volume. Make sure that you point the control
directly at the sensor on the amplifier front panel.
If you are having difficulty operating the handset
from an oblique angle, try pointing at something
reflective, e.g. the opposite wall, or place a small
reflective item at a suitable angle in front of the
amplifier.
A small dot of white paint or “Tippex” will
enable the little “dimple” on the volume control to
be more visible.
Please note that upon “switch-on” the volume
control is automatically re-set s to a low setting.
When the handset blue LED gets low you should
replace the batteries with 2x AAA cells.
Please note all these things are normal for
valve amplifiers:
A, Valves can get very hot, BEWARE!
B, The mains transformer will get quite warm
C, The amplifier will smell slightly for a few weeks.
D, M
obile 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.
9 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 in these
circumstances. Always unplug when making
adjustments.
Like all amplifiers there are
potentially lethal high voltages inside (over
500v DC), which when switched off can take
several minutes to discharge!
Do not remove
bottom panel unless you 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 300B grid bias pre
sets without reference to the manual. Incorrect
adjustment could cause the valves to overheat,
with possible damage to valves and amplifier.
