Arcam DiVA P80 User manual

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HANDBOOK
Arcam P80 amplier

A80/P80
2
A80/P80
3
Safety guidelines
CAUTION: To reduce the risk of electric shock, do not
remove cover (or back). No user serviceable parts
inside. Refer servicing to qualied service personnel.
WARNING: To reduce the risk of re or electric shock, do
not expose this apparatus to rain or moisture.
The lightning ash with an arrowhead symbol within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
‘dangerous voltage’ within the product’s enclosure that may be of
sufcient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the product.
CAUTION: In Canada and the USA, to prevent electric
shock, match the wide blade of the plug to the wide slot
in the socket and insert the plug fully into the socket.
Important safety instructions
This product is designed and manufactured to meet strict
quality and safety standards. However, you should be aware of
the following installation and operation precautions:
1. Take heed of warnings and instructions
You should read all the safety and operating instructions
before operating this appliance. Retain this handbook for future
reference and adhere to all warnings in the handbook or on the
appliance.
2. Water and moisture
The presence of electricity near water can be dangerous.
Do not use the appliance near water – for example next to a
bathtub, washbowl, kitchen sink, in a wet basement or near a
swimming pool, etc.
3. Object or liquid entry
Take care that objects do not fall and liquids are not spilled into
the enclosure through any openings. Liquid lled objects such
as vases should not be placed on the equipment.
4. Ventilation
Do not place the equipment on a bed, sofa, rug or similar
soft surface, or in an enclosed bookcase or cabinet, since
ventilation may be impeded. We recommend a minimum
distance of 50mm (2 inches) around the sides and top of the
appliance to provide adequate ventilation.
5. Heat
Locate the appliance away from naked ames or heat
producing equipment such as radiators, stoves or other
appliances (including other ampliers) that produce heat.
6. Climate
The appliance has been designed for use in moderate climates.
7. Racks and stands
Only use a rack or stand that is recommended for use with
audio equipment. If the equipment is on a portable rack it
should be moved with great care, to avoid overturning the
combination.
8. Cleaning
Unplug the unit from the mains supply before cleaning.
The case should normally only require a wipe with a soft, damp,
lint-free cloth. Do not use paint thinners or other chemical
solvents for cleaning.
We do not advise the use of furniture cleaning sprays or
polishes as they can cause indelible white marks if the unit is
subsequently wiped with a damp cloth.
9. Power sources
Only connect the appliance to a power supply of the type
described in the operating instructions or as marked on the
appliance.
10. Power-cord protection
Power supply cords should be routed so that they are not likely
to be walked on or pinched by items placed upon or against
them, paying particular attention to cords and plugs, and the
point where they exit from the appliance.
11. Grounding
Ensure that the grounding means of the appliance is not
defeated.
12. Power lines
Locate any outdoor antenna/aerial away from power lines.
13. Non-use periods
If the unit has a standby function, a small amount of current will
continue to ow into the equipment in this mode. Unplug the
power cord of the appliance from the outlet if left unused for a
long period of time.
14. Abnormal smell
If an abnormal smell or smoke is detected from the appliance,
turn the power off immediately and unplug the unit from the wall
outlet. Contact your dealer immediately.
15. Servicing
You should not attempt to service the appliance beyond that
described in this handbook. All other servicing should be
referred to qualied service personnel.
16. Damage requiring service
The appliance should be serviced by qualied service personnel
when:
A. the power-supply cord or the plug has been damaged, or
B. objects have fallen, or liquid has spilled into the appliance,
or
C. the appliance has been exposed to rain, or
D. the appliance does not appear to operate normally or
exhibits a marked change in performance, or
E. the appliance has been dropped or the enclosure
damaged.
Safety compliance
This product has been designed to meet the IEC 60065
international electrical safety standard.
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
ATTENTION
CAUTION
RISK OF ELECTRIC
SHOCK DO NOT OPEN

A80/P80
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A80/P80
11
Connecting to power, loudspeakers and
other equipment
Follow the installation instructions for the amplier on pages
4–6.
AUDIO IN
Connect this input to the output sockets of your pre-amplier or
the PRE OUT sockets of an amplier.
MONO LINK
The power amplier can be adapted to provide two mono
loudspeaker outputs from a single input. Pull out the link
supplied and use it to connect the L and R AUDIO OUT sockets
together. Using one power amplier per loudspeaker will enable
you to bi-amplify bi-wireable loudspeakers.
This is particularly benecial for top quality stereo installations
with a separate pre-amplier, or where ampliers are provided
for the left, centre and right channel loudspeakers in a ve
speaker Dolby Pro Logic or Dolby Digital system.
Contact your Arcam dealer for more information.
‘Daisy chaining’
The power amplier can be connected to further power
ampliers to drive more speakers (e.g. those in other rooms or
tri-amplied speakers, etc).
Connect the extra power amplier inputs to the AUDIO OUT
sockets on the power amplier, left to left, right to right.
Installation: P80 power amplifer
Remote switching
By making a connection from the REMOTE IN socket of the P80
power amplier to the TRIG OUT socket of the A80 amplier,
you can use the A80 to switch the power amplier on and off. If
congured in this way, the front panel POWER button of the A80
(or the Power/Standby button on the remote control) switches
both ampliers on and off together. This facility allows you to
conceal the power amplier yet still control it.
The connecting cable required is a male 3.5mm to male 3.5mm
jack lead (stereo or mono) and it is possible to connect several
power ampliers to an A80 by ‘daisy chaining’ from TRIG OUT of
one P80 into the REMOTE IN of the next.
Signal detect
The P80 power amplier features a signal-detecting circuit
that automatically switches the unit on when an input signal
is delivered to the amplier. The unit switches into standby
approximately 12 minutes after the signal source is switched
off.
The signal detect feature is disabled by the supplied blank plug,
or when a connection from the REMOTE IN socket to TRIG OUT
of an A80 is made. Simply remove the blank plug from the
REMOTE IN socket if you wish to use this feature.
LR + –+ –
SP1
SP2
4 – 16 OHMS L
R
IN OUT
REMOTE
IN
TRIG
OUT
AUDIO LINK
POWER INLET
VOLTAGE
SELECT
115/230V

A80/P80
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A80/P80
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POWER (and power indicator light) 2
Switches the unit on and off. The light indicates the status of the
amplier.
When you switch your amplier on, the light glows amber for a
few seconds, during which time the speakers are disconnected.
The light changes to green when the amplier is ready for use. A
red light means the amplier is in standby mode.
The light may ash if a fault has occurred somewhere in the
system (the fault type is shown on the front panel display of
the A80). You should unplug the amplier and leave it for a few
minutes before reconnecting. If the fault cannot be cleared,
unplug your amplier and contact your Arcam dealer.
Using your P80 power amplier
A80 POWER AMPLIFIER
SP1 SP2 POWER
21
NOTE: If both lights are out the amplier will appear not
to work, as all speakers are switched off. If both are on,
overloads are more likely if low impedance speakers are
connected.
SP1 and SP2 1
These buttons allow you to select and deselect the main
(SP1) and secondary (SP2) sets of speakers attached to your
amplier.

A80/P80
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A80/P80
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Before you start
WARNING: Do not make any connections to your
amplier while it is switched on or connected to the
mains supply.
Before switching on please check all connections
thoroughly, making sure bare wires or cables are not
touching the amplier in the wrong places (which could
cause short circuits) and you have connected positive
(+) to positive and negative (–) to negative.
Always ensure that the volume control on your amplier
is set to minimum before starting these procedures.
Bi-wiring your loudspeakers
Bi-wiring improves the sound of your system because it divides
the high and low frequency signal currents into separate
speaker cables. This avoids signal distortions arising from the
high and low frequency currents interacting with one another
within a single cable, as in conventionally wired systems.
You will need:
Speakers – with four input terminals each: these will be marked
HF (High Frequency) and LF (Low Frequency).
Loudspeaker cables – two pairs of cables per loudspeaker
(which may be joined at the amplier end if your amplier has
only one pair of output terminals per channel). Or, a suitably
terminated cable set (a loom, probably prepared by your dealer
and capable of being used for bi-wiring in one length).
How to bi-wire loudspeakers
1. Remove the terminal links on the rear of your
loudspeakers
WARNING: This step is essential or damage to
your amplier may result which is not covered
under warranty.
2. Connect the cables as shown in the diagram below,
ensuring correct polarity at all times.
Bi-amping your system
The performance of your system can be further enhanced over
that achieved with bi-wiring, by extending the principle one
stage further to include separate amplication for the low and
high frequency drive units in each loudspeaker enclosure.
Connect the amplier to the high frequency (HF) terminals and
connect the power amplier to the low frequency (LF) terminals.
You will need:
Speakers – with four input terminals each (as with bi-wiring):
these will be marked HF (High Frequency) and LF (Low
Frequency).
Two ampliers – one of these would be the A80 and the other
an Arcam power amplier (e.g. P80).
Loudspeaker cables – two pairs of cables per loudspeaker or
a suitably terminated cable set (a loom, probably prepared by
your dealer and capable of being used for bi-amping in one
length).
Interconnect cables – one pair of high quality interconnect
cables.
How to set up a bi-amped system
1. Remove the terminal links on the rear of your
loudspeakers.
WARNING: This step is essential or damage to
your amplier may result which is not covered
under warranty.
2. Connect the cables as shown in the diagram below,
ensuring correct polarity at all times.
3. Use the interconnect cables to connect the PRE OUT
sockets of the A80 to the corresponding AUDIO IN sockets
of the power amplier.
Bi-wiring and bi-amping loudspeakers
Bi-wiring using one set of connections on amplier Recommended bi-amping conguration
Arcam A80 amplifier
R L
Right
speaker
HF
LF
+
+
+ –
HF
LF
+
+
–
–
+ –
Left
speaker
–
–
R L
Arcam P80 power amplifier
+ –+ –
RL
+ –+ –
Right
speaker
HF
LF
+
–
+–
–
HF
LF
+
–
–
+
Left
speaker
Arcam A80 amplifier

A80/P80
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A80/P80
13
Service information
Continual improvement policy
Arcam has a policy of continual improvement for its products.
This means that designs and specications are subject to
change without notice.
NOTE: All specication values are typical unless otherwise
stated.
Before returning your amplier for service, please check the
following:
Sound cuts out for no reason
If the temperature of the internal heatsink rises above a safe
level, then a thermal cutout inside the amplier will operate.
The power indicator on the front panel ashes and the
protection system temporarily removes the power to the
speakers. The system resets after the heatsink has cooled
down.
Note that because of the high output voltage from a CD player,
it is possible to drive the A80 at full power even though the
volume is not set at maximum.
Amplier does not switch back on
The A80 and P80 ampliers have a protection mechanism
which is activated if you switch the unit on immediately after
turning it off. If this mechanism activates, wait 30 seconds then
switch back on again.
Technical specications
A80 P80
Continuous power output, per channel
Both channels, 8Ω, 20Hz–20kHz 65W 65W
Single channel, 4Ω, 1kHz 140W 140W
Distortion, 8Ω, 80% power, 1kHz 0.005% 0.005%
Inputs
Phono cartridge input sensitivity, MM 2.5mV
Line and tape inputs:
Nominal sensitivity 250mV 700mV
Input impedance 22kΩ22kΩ
Signal/noise ratio (CCIR) 105dB 112dB
Preamplier outputs
Nominal output level 700mV
Output impedance <50Ω
General
Power consumption (maximum) 650VA 650VA
Dimensions W x D x H (including feet) 430 x 330 x 75mm 430 x 330 x 75mm
Weight (net) 9kg 9kg
Weight (packed) 10kg 10kg
Supplied accessories mains lead
CR-389 remote control
2 x AAA batteries
mains lead
E&OE

A80/P80
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A80/P80
15
Worldwide Guarantee
This entitles you to have the unit repaired free of charge, during
the rst two years after purchase, at any authorised Arcam
distributor provided that it was originally purchased from an
authorised Arcam dealer or distributor. The manufacturer
can take no responsibility for defects arising from accident,
misuse, abuse, wear and tear, neglect or through unauthorised
adjustment and/or repair, neither can they accept responsibility
for damage or loss occurring during transit to or from the
person claiming under the guarantee.
The warranty covers:
Parts and labour costs for two years from the purchase date.
After two years you must pay for both parts and labour costs.
The warranty does not cover transportation costs at any
time.
Claims under guarantee
This equipment should be packed in the original packing
and returned to the dealer from whom it was purchased, or
failing this, directly to the Arcam distributor in the country of
residence.
It should be sent carriage prepaid by a reputable carrier -– NOT
by post. No responsibility can be accepted for the unit whilst in
transit to the dealer or distributor and customers are therefore
advised to insure the unit against loss or damage whilst in
transit.
For further details contact Arcam at:
Arcam Customer Support Department,
Pembroke Avenue, Waterbeach, CAMBRIDGE
CB5 9QR, England.
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
Problems?
If your dealer is unable to answer any query regarding this
or any other Arcam product please contact Arcam Customer
Support on [phone] or write to us at the above
address and we will do our best to help you.
Guarantee
On-line registration
You can register your Arcam product on line at
www.arcam.co.uk
Other languages
Check the Arcam website (www.arcam.co.uk) for further
languages.

PEMBROKE AVENUE, WATERBEACH, CAMBRIDGE CB5 9QR, ENGLAND
telephone [phone] fax [phone] email [email protected] website www.arcam.co.uk
SH117EIssue 1