icon Audio Stereo 40 MK III User manual

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icon Audio
Instruction Manual Covering:
Stereo 40 MK III all models
Pictured with SG KT88 valves
Contents
1 Introduction & Final Inspection
2 Quick Set Up Guide
3 Connecting inputs & outputs
4 Getting the best out of your amplifier
5 Trouble Shooting
6 Bias Checking & Valve Replacement
7 Specifications
8 Packing and Shipping
1 Introduction
Thank you for purchasing the Stereo 40 MKIII. A
great deal of care has been taken in the design,
selection of components and production of this
amplifier. We are sure that you will hear the
difference.
In order to get the best out of your amplifier,
please read the enclosed notes. Even if you are
experienced with hi fi please read the ‘quick set
up guide’. Should you be uncertain about
anything to do with your amplifier please contact
us for advice.
Valve (or Tube) amplifiers do the same job as a
solid state amplifier, but they do it differently. And
whilst solid state specifications look good on
paper even quite modest valve amplifiers can
have a richer, more textured sound. Your ears will
have become accustomed to your old amplifier.
Sometimes it may take some hours before your
ears attune themselves to the new sound.
Your source, loudspeakers and room acoustics
will also affect the sound before it finally reaches
your ear. Some people find a small adjustment in
re positioning their speakers can help too. The
weakest link will always affect the final results
when making judgements. Not all recordings are
‘equal’! Therefore an amplifier which faithfully
reproduces the input signal will also reproduce
imperfections in the tonal balance and the
recording itself. Setting up and judgements should
be made with a ‘clean’ well balanced recording.
The Stereo 40 MKIII is a push-pull Ultralinear
stereo power amp, capable of running in either
pentode ultralinear or pure triode mode, using the
excellent EL34 or KT88* valves in fixed bias. The
driver and phase splitting is all triode. The pre-
amp is a high quality ‘Passive’ circuit using silver
audio cable and an ALPS ‘blue’ volume control. It
is sensitive enough to be used with all modern
source equipment having an output of 250mv or
greater. Its simplicity coupled with point to point
wiring hand wiring without the use of printed
circuit boards results in an open euphoric sound
that is wonderfully detailed and warm sounding.
also covers the SE & ‘ie’ model, where the
tape monitor facility & triode circuit and are
omitted. *This model may be used with either
EL34/6CA7/KT77/KT66/KT88/6550

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2 Final Inspection - Your Guarantee of Quality
To assure you of optimum performance and reliability, this amplifier has passed our rigorous
final inspection and listening test by the Icon Audio team in Leicester . During which the final set
up and adjustments were made.
Date …./…./….
Model ……….
Amp Serial Number ……….
Customer ……………………………
Check amplifier finish ……….
Internal wiring check ……….
Check Triode mode ……….
Run min 6 hour test ……….
Check inputs & tape monitor ……….
Output Valve Bias level ……mv
Sound Quality ……….
Channel Balance ……….
Valve Microphony ……….
Valve Seating ……….
Hum level left/right ...../…..mv
RF Test ……….
LED brightness ……….
Serial No sticker and recorded ……….
Mains voltage 110 / 230-240V
IEC Mains Fuse ………A
Soft Start Fitted ……….
Sales invoice ……….
Bottom label ……….
Credit card receipt .………
Customer survey form .………
Bias meter ……….
Transformer Protection ……….
Upgrades:
HT delay fitted? …Y / N
Output valves ……....……….
1st Stage valve ……………….
Phase splitter valve ……………….
Capacitor grade (Audio) ……….
Mains lead ……….
Interconnects ……….
Signed off by ……………………….
Notes:
Please note we do not test the standard mains lead.

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IMPORTANT READ THIS FIRST
2 QUICK SET UP GUIDE
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. The KT88/EL34s 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. 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.
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.
Please note the 6SN7/6SL7s are not
interchangeable with the KT88/EL34 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 6 ohms
which so this is not critical (see Ch 3). 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 “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
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.
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 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.
8, Remote Control. If the batteries are OK (2x
AAA) the blue 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 you 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 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 in these
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 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.

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3 Connecting inputs & outputs
Many problems associated with electronic
equipment involves connecting leads, which are
usually either ‘BAD CONNECTION’ or a
‘WRONG CONNECTION’. So it’s worth making
sure that you have good connections and that
your leads are the right way round.
Inputs
The amplifier will work with any standard piece of
hi fi e.g. CD, Tuner, Tape Deck, Mini Disc, TV,
Video Recorder, DVD etc having an output of
250mv or more, to get full power.
If you wish to use a turntable you will need a
suitable phono pre-amp. Icon Audio or your dealer
can advise you. Our new all valve phono stage is
an ideal partner.
To use as a power amplifier. In this mode of
operation it is suggested that the volume control
be fully clockwise, and volume be controlled on
the pre-amplifier for best results. The tape input
will provide the most direct signal path. Good
quality leads should be used, making sure that
you have good connections both ends. If you have
to much gain Icon Audio con modify to suit you
requirements.
Connecting a tape deck/Recorder/Equaliser
The STEREO 40 will work with any tape deck
having suitable output, and it is possible to record
from any connected source using the terminals
marked ‘Pre-out’. The STEREO 40 has a ‘Tape
Monitor’ facility, which enables you to use a ‘three
head deck’ or an equalizer.
Some tape decks ‘Present a load’ to the amplifier
terminals, even when not in use, which can affect
sound quality. (You can do an audible check for
this by removing the plugs and listening for a
change). Therefore for best results do not leave
anything connected to “Rec out” unnecessarily.
Connecting loudspeakers
It is important to use good quality loudspeaker
cable. This should be relatively thick and muti-
stranded. i.e. QED ‘Original’ or better. Take care
to connect the correct polarity. The use of
‘Banana plugs’ or ‘spade’ connections will ensure
a good connection whilst minimising the risk of
‘shorts’.
In our experience valve amplifiers are more
tolerant of cables, therefore the benefits of very
‘exotic’ cables may be wasted! But this is personal
taste. Icon or your dealer will advise you.
As all cables have losses, keeping the speaker
cables short is best. It may be better and be
cheaper to re-arrange your room and use shorter
cables than to spend a fortune on longer cables!
You can either ‘hard wire’ your cable to the
amplifier by baring enough cable to fit in the
connector and twist together to avoid any spare
strands touching anywhere else (soldering the
stands together helps). Be warned this amplifier
does not have an output protection device,
which would degrade the sound. So a
prolonged short due to strands of wire
touching could damage the valves.
Alternatively use good quality ‘banana’ plugs,
once fitted they are trouble free.
Speaker polarity. It is essential that you
observe the polarity of the terminals; they
must be the same for the left/right connections
at the amplifier end and at the loudspeaker
end. Otherwise the sound will be ‘out of phase’
with the sound stage ‘inside out’ with reduced
bass. If you are unable to check this or confirm
the polarity (e.g. if you have ‘built in’ wiring), try
the following; Connect the system up and play
some music with plenty of bass (e.g. dance
music), preferably in mono (FM tuners are usually
switchable to mono) and stand the speakers close
together. If correct you should hear plenty of bass,
if not reverse the terminals for one channel
only, either at the amp or speaker. You will now
hear more, or less bass. The higher bass output is
the correct setting to use. Another alternative is to
use a test disc. If you are ‘bi-wiring’ your speakers
only two terminals, you must use only 4 or 8
ohms, not both, as this will not load the amplifier
properly.
The STEREO 40 is designed to work with full
range, medium to high efficiency having
impedance of 4 ohms to 8 ohms. Speakers having
efficiency of lower than 86db will have greater
difficulty in providing a high sound level. But this
will also depend upon individual speakers, room
size, type of music and positioning etc.
Speaker impedance. It is important to use the
correct speaker impedance terminals, as this will
give the best sound quality and power matching. If
using 15-ohm speakers use the 8-ohm
connections. If you are unsure or “6 ohms” or “4 to
8 ohms” is quoted; a rule of thumb guide is to try
both positions. The loudest being the best match.
Although your personal taste should be the final
deciding factor.
Do not connect to more than one pair of terminals
for each channel. If two pairs of speakers are
required to be connected, they must both be 8-
ohm and connected 4 ohm terminals. Contact
Icon Audio for more information. Damage could
be occur if care is not taken.

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4 How to get the best out of your amplifier
•Do not leave the amplifier switched on all the time. This is not necessary
•Do not switch off and on without a short rest of 60 seconds (to reset the ‘soft start’)
•Do not adjust the output valve grid bias unless you know how
•Do not switch from Ultralinear to Triode without switching to Standby or switching off
•Do not operate the amplifier without loudspeakers connected
•Do not use valves other than listed as there could be danger of shock or overheating
•Remember to check the bias about twice a year for best performance.
•Make sure the speakers are in phase.
•Use the best possible source material.
•Use efficient, well-designed speakers.
What is safe maximum volume?
The Stereo 40 MKIII will run happily all day long at
maximum power; the valves are not stressed any
more at full power than at zero volume. Running
into gross distortion will however stress the whole
amplifier. To find the maximum safe volume, play
full range music and advance the volume until
distortion occurs, (this is normally between 12 and
3 o’clock on the volume control) back off the
volume control about 30 degrees, this is
approximately full music power. However this
position will vary according to the level and type of
music and the output of the source unit. For
example CD players tend to be higher than say
tuners or phono stages.
Triode Switch. This switch causes the
KT88/EL34s to operate as Triode valves. As
switching can stress the output transformers
we would recommend that switching be done
when the amplifier is in “Standby”.
The majority of listeners prefer the “triode” sound
believing it to be more pleasant to listen to, but the
power will drop to about 50%. As the gain in triode
is nearly the same the volume will be the same.
But at higher volumes you may hear some
distortion, in which case switch to ULTRALINEAR.
Leaving the amplifier switched on
Do not leave the amplifier switched on 24/7. Your
valves will be worn out in approximately nine
months! Whilst the amplifier will sound at its best
when it is properly warmed up, there is no
advantage leaving it switched on when it is not in
use. See (Standby Switch). We would always
advise that any item of home electronics is
switched off when not in use
Standby Switch
If the amplifier is not needed for a few hours, it
can be left in the “standby” state. This enables the
valves to be fully warmed and ready to use the
instant you put the standby switch down. In the
“standby” position the amplifier is only using about
50% of normal power. It also enables a healthy
cloud of electrons to build up around the hot
cathode. Also it allows the silver “getter” inside the
valve to “mop up” any gas that has built up inside
and therefore keep the vacuum “hard” for best
performance. There is no benefit to leaving the
ST40 on standby indefinitely. If not in use switch
off!
‘Burning in’
Although the amp should sound good within
about 10 mins it can take up to an hour to
sound at its best and will take several months
of regular use before it is fully ‘run in’.
Upgrading Valves!
Good quality new valves sound better, have good
performance and reliability. The upgrade valves
supplied with selected models are the result of
careful comparison with other makes. But beware
paying excessive amounts for “New Old Stock”,
second hand or “Fake”, valves,
Cabinet Care
To remove dust we suggest gentle brushing of the
polished stainless steel cabinet with a soft
paintbrush. Other marks can usually be removed
with a damp cloth. The Perspex valve cover may
need a gentle wipe with soapy water and drying
with a duster. On no account use anything wet on
the amplifier, and always clean with the power
disconnected.
5 Trouble Shooting
Amplifier Dead
Check the 1.6 amp mains fuse at the back of the
amplifier. To gain access, remove the mains lead. The
fuse is in a small plastic drawer, which forms part of the
socket assembly. To open insert a flat bade screwdriver
or similar and prise open. The fuse in use is the
innermost the outer is a spare. Should the replacement
fuse also blow there is a fault. Replacements should be
1.6 Amp ‘anti-surge’. Available from Icon Audio free.
The fuse in the plug should be a 3 or 5 amp fuse,
although unlikely, this should be checked if the amplifier
fuse is OK.
No sound
Have you selected the right input? Are the
connections OK? Is everything switched on? Are the
speakers connected?
Distorted sound.
Try another source; if sound improves then it’s
probably something wrong with the first source. If no
improvement try different speakers, if no
improvement could be an amplifier problem.
Hum Problems
If you experience hum, try disconnecting all inputs, if
hum persists this is probably an amplifier fault.
If not, identify which input is causing hum. Connect
one input at a time. A common cause is a ‘hum loop’
caused by having to many earths, and may be

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identified by unplugging each input source from the
mains. One remedy for this is to use an interconnect
which only has the screen connected at one end. Other
causes of low-level hum can be from adjacent
equipment, so experiment with moving equipment
around to see if this makes the hum better or worse.
Interference Problems
The amplifier design incorporates features and devices
which make it resistant to mains-born interference. But
some CH boilers/fridges/cookers etc can generate RF
(radio frequency) interference which travels through the
air (and walls). Although rare this can be very irritating.
In this case a simple capacitor is often all that is needed
to effect a permanent cure (ask us).
One channel missing.
Usually ‘bad’ connection on either the input or the
speakers. Try swapping the connection over to establish
if the cause is:
(a) Input to the amp. Sound will move to the other
channel.
(b) Amplifier or speakers. Sound will not move.
Strange noises coming from speakers:
Turn volume to minimum on unused input, if problem
corrected either fault with source unit or with connection.
If noise persists, problem with amplifier.
If a whole output valve glows red (other than the heater),
often accompanied by a hum through the speakers,
switch off immediately, and refer to Icon Audio or a
service engineer, as this could be valve failure.
A valve that is lit up is not a guarantee that it is working
properly; conversely a valve that is not lit up will not be
working (usually cold to the touch).
Valve Replacement (see also section 7)
Valve life will depend upon such things as hours of use
and number of on/off cycles, Do not switch on and off
unnecessarily (see Standby). Also it is not good practice
to remove the valves unnecessarily as this can strain the
pins and cause tiny air leaks.
Service: Should you suspect a problem, you could
return the unit to Icon Audio for a periodic service or
return the valves for testing free of charge. You should
carefully remove the valves (the KT88/EL34s should be
held by the base when removing, to prevent damage)
numbering them with a marker from left to right as you
do so in order that that may be replaced in the same
position. They should be well packed in cardboard &
foam or similar, and returned to Icon Audio for testing.
(Valves are very rugged if packed properly).
Mains Supply
This amplifier is hard wired to work on 230/240v ac. The
transformer may easily be re-configured for 110/120v ac.
Contact for more information.
6. Bias Checking & Adjustment
If you are unsure about any aspect of bias
contact your retailer, Icon Audio or a competent
service engineer.
The Stereo 40 MKIII uses the ‘Fixed bias’ method
of valve operation. This has the advantage of
higher power, lower feedback and cooler running.
However we recommend that once or twice a year
you check the bias reading using the supplied
meter to ensure best performance from the
amplifier. This is a safe procedure which involves
measuring less than 0.5 volt in the four sockets next
to each KT88/EL34 and adjusting if necessary.
1, Tools you will need: The supplied meter or one set
to measure approx more than 2 or 3 volts DC, and a
small flat blade screwdriver. Adjustments are done at
zero volume with speakers connected. Run the amp
for at least 15mins (if it is working correctly).
Otherwise do a rough adjustment and check later
when the ST40 is hot.
The Icon meter reads in mv (millivolt=1v/1000). So
will read “.400” EL34 or “.450” KT88.
2, Connect: the black probe to the chassis ‘earth’ by
unscrewing the ‘0’ speaker terminal and tightening
the probe in the exposed hole. And the other in the
test socket adjacent to the valve on test. Set the
‘Icon’ meter to 2000mv (2v) or the ‘black mark’. See
pics.
Making the ‘earth’ connection.
3, Checking: You should get a reading of 400mv
EL34, 450mv KT88 if valve is conducting correctly.
But bear in mind that your mains voltage fluctuations
can affect your readings up to 10% Check all valves,
they should be within about 20% of the ideal voltage.
4, Adjusting: If the reading is incorrect, set this by
using the bias adjuster in the centre, NOTE: There is
only one adjuster for all four valves. They are very
sensitive so adjust very carefully; use tiny turns of the
screw. If the reading appears a little unstable this is
normally due to mains fluctuations.
5, If one or more valves are showing erratic readings
or you cannot set the correct voltage, then that valve
is probably faulty or out of specification. If you are
unable to set the reading high enough this means the
emission of the valve is low.

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Showing a probe reading 1st output valve
Replacing the KT88/EL34 Valves
Important: Do not attempt to change the KT88/EL34
without reading these notes. Failure to do so could
be both dangerous and damaging to the amplifier.
When replacing valves, it is essential that you use a
“matched quad”.
Health & safety; High voltages are present inside the
amplifier and on exposed valve sockets when valves
are removed, so take suitable care. It is not
necessary to remove the bottom cover. Beware
valves get hot in operation!
5, Changing valves: You should if possible check the
bias setting before you attempt to change the valve(s), in
order to familiarise your self with the procedure.
The safe way is to change and check one or two valves
at a time. Remove the first old valve and fit the
replacement. Switch on and measure bias, you should
be setting the reading for each valve to about 350mv (0.,
Do not allow the reading to go above -800mv. Don’t
worry how low the reading goes this will not cause
damage. Continue in the same way and fit all four
valves. Do final adjustment when the amplifier is fully
warmed up.
If all is well there should be no more than a barely
detectable hum from the speakers, and the amplifier
should sound OK When tested.
6, If you cannot set up the 400/450mv then the valve is
probably faulty or is unsuitable.
If the valves are brand new, you will need to check again
after approximately 10 & 100 hours, after that only
occasionally or if you suspect a problem.
NOTE: If you are changing to a different type of
valve, be ready to change the bias quickly, as the
setting from say KT88 to EL34 may be quite large.
7, To avoid damage to the amplifier and electric
shock hazard you must use only valves marked
KT88/EL34 (or 6550), 6SL7, 6SN7 Or that you know to
be direct equivalents. Use only valves which you know
to be new or good condition and test the amplifier
thoroughly before resuming normal use.
8, Replacing the small valves:
6SL7 (centre) and 6SN7 valves. Neither of these
requires any set up procedure. It’s just ‘plug and play’,
although care should be taken when removing and
inserting not to break the centre spigot. (These valves
are similar with the same pin connection; accidental
wrong insertion would not cause damage).
Icon Audio are happy to check the valves/amp or
your re-bias your amp free of charge.
9, 274B Rectifier. This should normally last
longer than the audio valves. Replacements may
be obtained from Icon Audio. Alternative valves
to use are GZ34, 5AR4, GU5.
*RMS watts Do not literally exist! But this figure is based upon the RMS
voltage output (V²/R).
*Push Pull is a very elegant way of virtually cancelling out non linear
distortion, noise and hum. Whilst dramatically increasing the power and
damping factor. In Class AB about 1/4 of the output is pure class A. Unlike
transistor designs there is NO crossover distortion before the amplifier
reaches full output.
*Ultralinear (or Distributed Load). This is a true “win-win” output stage
design. Having virtually the all the characteristics and low distortion of pure
Triode valves, whilst keeping 90% of the power of pure Pentodes types.
*The Leak Stereo 20 (& 50/60) series used a single ECC83 triode first
stage coupled to an ECC83 double triode “long tailed pair” phase splitter.
Originally developed by A D Blumlein in the 1930’s. This design was also
widely used by GEC, Mullard, Sugden etc. However the “TL+” series used
an EF86 Pentode, now widely regarded as having an inferior sound).
*Power output level will vary from 25 watts (6L6) up to 45 watts (KT88)
depending upon the output valve type.
7 Specification & Features
(Typical conditions @ 240v 50Hz)
•KT88/EL34 output valves or eqv (6550)
•6SL7 double triodes for first stage
•6SN7 double triodes phase-splitter
•274B full wave rectifier
•No feedback used
•Custom hand wound transformers with Tertiary
winding.
•Hand wired point to point components
•No printed circuit board
•No
tag board
•Ceramic valve bases for low noise/leakage
•HT delay circuit to protect cathodes (optional)
•40w RMS per channel Ultralinear
•20w RMS per channel Triode mode
•Signal to noise level -90db
•Freq response better than 20-20kHz +0-1db
•Power bandwidth 10hz-30khz
•0.15% THD at full output
•4 and 8 ohms output taps
•Valve rectifier
•Choke regulated power supply
•Supplied with attractive safety guard
•Audiophile quality metal film resistors
•Audiophile quality polypropylene audio caps
•Japanese ‘Blue’ ALPS volume pot.
•Rubicon/Nichichron power caps.
•Internal wiring using Teflon silver cable
•Valves carefully matched for best performance
•Gold plated Input & speaker terminals
•Inputs for CD, Tape, Tuner, Aux
•Tape monitor
•250mv sensitivity for full output
•230/240volts, 76w SB, 140w Min, 240watts max
•1.6 amp AS rear fuse (with spare)
•390W, 210H, 410D Amp overall 25kg
•Carton= 34x51x49cm 28kg packed
•IEC mains lead, (5amp fused)
•Conforms to CE ROHS and WEEE where applicable
Specification subject to change without notice.

Page 8
Thank you for purchasing one of our amplifiers. We
hope you will be pleased with it.
All units are individually tested for performance for at
least six hours before despatch to you. In the unlikely
event that you believe the unit is not functioning
correctly, it may be helpful to contact us first as we
may be able to assist you. Then we would request
that you return the item to us for further action.
You are advised to inform us of any change of
address in order that we may keep you up to date of
any upgrades or improvements. Check our website.
Exclusions
Claims for any damage to either amplifiers or valves
must be reported within three days of receipt.
This amplifier is designed for normal domestic hi fi
use. It is not guaranteed for commercial, Public
Address use, or use in other situations. The
guarantee becomes void if the unit has been
modified in any way not approved by Icon Audio.
8 Packing Instructions
It is essential that the original box and packing be
kept in good condition, as this provides vital
protection during transit. Please do not write on
box, but use removable labels. If returning for
service do not send the cover, as this is easily
damaged. If you are sending the cover place the
amplifier in a plastic bag and wrap packing tape
around the amplifier as shown in order to “clamp” the
cover down firmly. This minimises damage if the
amplifier is not kept upright.
•Re-use the supplied plastic bag to keep the
amp clean and free from damp.
•The mains lead fits in a foam cut-out
underneath the amplifier.
•Insert the piece of cardboard between the
transformer cover and the valve guard;
this will prevent the valve guard
scratching the transformer paintwork.
•Valves should be removed, numbered and
packed in “bubblewrap” or similar for
protection inside the valve cover.
•If the amplifier is stored in the box, keep
upright.
icon Audio
351 Aylestone Road Leicester LE2 8TA
[email protected] www.iconaudio.com
Phone [phone] [phone]
Fax [phone]
0107 V Gen Pr 25/06/2010