Arcam Power Amplifier P1 User Manual 2

Pre Amplier C31 Power Amplier P35 Power Amplier P1
C31/P35/P1
E-3
English

Safety guidelines

RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
ATTENTION
CAUTION
RISK OF ELECTRIC
SHOCK DO NOT OPEN
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.
These products are 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 these products. Retain this handbook for future reference and adhere to all warnings in the handbook or on the product itself.
2. Water and moisture
The presence of electricity near water can be dangerous. Do not use these appliances near water – 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 of a unit through any openings. Liquid­lled objects such as vases should not be placed on these products.
4. Ventilation
Do not place these units 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 each unit to provide adequate ventilation.
5. Heat
Locate these products away from naked ames or heat producing equipment such as radiators, stoves or other appliances (including other ampliers) that produce heat.
6. Climate
These products have 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 a unit from the mains power supply before cleaning.
The cases 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 an unit to a power supply of the type described in the operating instructions or as marked on the product itself.
The primary method of isolating these products from the mains supply is to remove the mains lead from the rear of the unit. These products must be installed in manner that makes this disconnection possible.
These are Class 1 devices and must be earthed.
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. Pay particular attention to cords and plugs, and the point where they exit from the unit.
11. Grounding
Ensure that the grounding means of these products is not defeated.
12. Power lines
Locate any outdoor antenna/aerial away from power lines.
13. Non-use periods
When using the stand-by function, a small amount of current will continue to ow into the unit. Unplug the power cord of a unit from the outlet if it is to be left unused for a long period of time.
14. Abnormal smell
If an abnormal smell or smoke is detected from a unit, turn the power off immediately and unplug the unit from the wall outlet. Contact your dealer for further advice.
15. Servicing
You should not attempt to service these products beyond that described in this handbook. All other servicing should be referred to qualied service personnel.
16. Damage requiring service
These products 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

These products have been designed to meet the IEC 60065 international electrical safety standard.
C31/P35/P1
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Using this handbook

Thank you for buying this quality Arcam product.
This handbook covers the following items:
C31 pre-amplier;
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P35 power amplier;
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P1 power amplier.
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This handbook is intended to give you all the information you need to install and use these products. The C31 is described rst, followed by the P35 and the P1. Use of the CR-389 remote control supplied with the C31 is also described.
If your ampliers have been installed and set-up by an authorised Arcam dealer, you may wish to go directly to the sections on how to use this equipment. Otherwise we recommend reading carefully the installation instructions for your products before proceeding.

Safety

Safety guidelines are set out on page 2 of this handbook.
Many of these items are common-sense precautions but, for your own safety and to ensure that you do not damage the unit, we recommend that you read them.
Contents
Safety guidelines................................................ E-2
Important safety instructions..........................E-2
Safety compliance.........................................E-2
Using this handbook ...........................................E-3
Safety .........................................................E-3
Installation: C31 pre-amplier..............................E-4
Positioning the unit .......................................E-4
Connecting to other equipment....................... E-4
Connecting to a power supply......................... E-5
Switching the C31 on ....................................E-6
Changing the volume ....................................E-6
Selecting an audio source ..............................E-6
Using your C31 pre-amplier ...............................E-6
Recording an audio source .............................E-7
Listening using headphones ...........................E-7
Product conguration ....................................E-7
Conguring your C31 pre-amplier .......................E-8
Introduction .................................................E-8
Adjusting listening settings ............................E-8
Using the remote control ..................................... E-9
Installation: P35 and P1 power ampliers ............E-10
Positioning your power amplier ...................E-10
Connecting to other equipment..................... E-10
Remote switching .......................................E-11
Connecting loudspeakers .............................E-12
Connecting to a power supply....................... E-13
Using your power amplier ................................ E-14
Technical specications ..................................... E-15
Remote-control codes ....................................... E-16
Troubleshooting ............................................... E-17
Guarantee ....................................................... E-17
On-line registration ..................................... E-17
English
Environmental matters:
This handbook is printed in the U.K. on recycled paper, and is itself fully recyclable and biodegradeable.
The paper used is from the ‘Revive’ range of papers, manufactured in the U.K. by Robert Horne. In Revive, 75% of the paper is de-inked post-consumer waste, with the remaining 25% being mill broke and virgin bre. The recycled pulps used in the production of this paper are a combination of Totally Chlorine Free (TCF) giving zero AOX and Elemental Chlorine Free (ECF) giving a resultant AOX level of less than 0.5Kg per 1000Kg of pulp.
C31/P35/P1
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C31/P35/P1
E-4
C31/P35/P1
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Engl ish

Positioning the unit

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Place your ampli er on a level,  rm surface.
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Avoid placing the unit in direct sunlight or near sources of heat or damp.
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Ensure adequate ventilation. Do not place the unit in an enclosed space such as a bookcase or
cabinet as both of these will impede air- ow through the unit.

Connecting to other equipment

The connections on the rear of the C31 fall into four groups:
1. dedicated audio inputs;
2. recording loops;
3. connections for power-ampli ers;
4. remote control and trigger connections.
These groups are described below.
General advice on connecting to other equipment
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We recommend the use of high-quality interconnect cables to and from your ampli er to ensure the
best sound quality; cheap ‘bell-wire’ interconnects may seem to be a good alternative, but they will reduce the overall quality of your system, and are a false economy.
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Make sure that audio and power cables are kept as far apart from each other as possible. This
reduces the risk of ‘noise’ from the power cables bleeding into those for audio.
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Cables should be kept as short as is practical.
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For each of the audio inputs/outputs that you wish to use, connect the terminal labelled L or
LEFT (on the device to be connected) to the terminal labelled L for that input/output on the C31.
Similarly, the terminal labelled R or RIGHT on the device should be connected to the R-terminal on the C31. Conventionally, stereo-phono leads have plugs that are coloured red for the right channel and white or black for the left channel, to aid channel identi cation.
Audio inputs
bl
DVD – This input is intended for use with a DVD-player. Connect the stereo audio outputs of your
DVD player to these sockets.
bm
AV – This input is intended for use with general audio-visual equipment, such as a VCR,
digital TV/satellite receiver, or Nicam tuner. Connect the analogue audio outputs of the device to this input.
bn
TUNER – Intended for use with a radio tuner.
bo
CD – Intended for use with a CD-player.
bp
AUX – As with the ‘AV’ input, this is intended for general use. Connect the audio outputs of
any unit with a line-level output (tape deck, tuner, etc.), to this input.
bq
PHONO (if  tted) – As standard, no phono input is  tted to the C31.
Phono inputs are provided on a separate plug-in module which your Arcam dealer or distributor can supply and  t. This module is compatible with most high-output moving-coil and moving-magnet cartridges (MM) and low-output moving-coil cartridges (MC). Once the module is  tted, MM or MC is selected via the MM/MC back panel switch.
Why is this useful?
The phono module (or an external phono ampli er) is required if you wish to connect a record player to the C31. This is because the low-voltage output of a record player requires a pre­ampli cation stage before the signal can be used. If you have already an external phono ampli er that you wish to use, connect this to one of the line-level inputs, such as the ‘AV’ input.
Installation: C31 pre-ampli er
LR
PHONO
POWER INLET
PRE OUT
BUFFERED
L
R
L
R
L
R
VOLTAGE
SELECT
RECORD
OUT
PLAY
IN
TAPE/PROC
RECORD
OUT
PLAY
IN
VCR/TAPE 2 DVD AV TUNER CD AUX
MM MC
REMOTE
IN
TRIG
OUT
115/230V
DIRECT
With the exception of the ‘PHONO’ input, although these inputs are labelled for speci c devices, all have the same characteristics and each may be used with any line-level product.
Recording loops
The C31 is equipped with two recording loops, for use with recording devices (such as cassette decks, MiniDisc players, VCR’s etc.)
TAPE/PROC RECORD OUT – Connect these output sockets to the input sockets of your recording
7
device (usually labelled RECORD or IN).
TAPE/PROC PLAY IN – Connect the output sockets of your recording device (usually labelled PLAY
8
or OUT) to these inputs. If you do not have a recording device, you can use this input for other (line-level) equipment, such as a CD-player, tuner, VCR, etc.
VCR/TAPE2 RECORD OUT – These output sockets can be connected to the input sockets of a
9
second recording device.
VCR/TAPE2 PLAY IN – Connect the output sockets of your second recording device to these
bk
inputs. Alternatively, this input may be used for other (line-level) equipment such as a CD-player, tuner, etc.
Power-amplier connections
PRE OUT – The recommended connection between the C31 pre-amplier and your power
456
amplier depends on both the distance between the two and the type of power amplier that you are using. There are three options:
1. If the cables to be used to connect the C31 to the power amplier are less than 3m long, we recommend connecting the DIRECT sockets 6 to the input sockets of your power amplier. On the P35 and P1, connect to the socket(s) labelled AUDIO IN.
If the cables to be used to connect the C31 to the power amplier are 3m or longer, then the connection to use depends on the type of power amplier you have.
2. If your power amplier does not have balanced inputs (such as the P35), use the
BUFFERED outputs
3. If your power amplier provides balanced inputs (such as the P1), use the balanced outputs 4. On the P1, connect to the sockets labelled BALANCED AUDIO IN.
The buffered and balanced outputs are designed to drive longer cables than the direct output, but you cannot damage either your C31 or your power amp. by using the “wrong” connection type.
. On the P35, connect to the sockets labelled AUDIO IN.
5
Engl ish
Other connections
Phono earth terminal – For connecting your turntable earth lead (if required). Note that this terminal
must not be used as a safety earth.
TRIG OUT and REMOTE IN (12V in and out) – These connections are intended for use in multi-
3
room installations.
TRIG OUT: This output provides a 12V signal whenever the unit is switched on (i.e.,
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not off or in stand-by). This signal can be used to switch on power ampliers (or other equipment) connected to the C31, as they will come on when the C31 is activated. This is useful if the power amplier is remote from the C31, or otherwise difcult to access.
REMOTE IN: This allows remote-control signals to be received by the C31 if the remote
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sensor is covered (or otherwise not ‘visible’ to the remote-control). An external sensor (such as the Xantech ‘Dinky Link’™) is used to receive the signals from the remote-control, which are then fed to the C31 (into this input) using a suitable cable.
In normal use there is no need to make any connections to either of these sockets.

Connecting to a power supply

Mains lead
The appliance is normally supplied with a moulded mains plug already tted to the lead. Check that the plug ts your supply and that your mains supply voltage agrees with the voltage setting (115V or 230V) indicated on the rear panel of the unit 2 before plugging in.
If your mains supply voltage or mains plug is different, please consult your Arcam dealer immediately.
Plugging in
Push the IEC-plug of the power cable into the socket POWER INLET 1 in the back of the unit, making sure it is pushed in rmly.
Stand-by power
For remote stand-by operation, the amplier’s control power-supply is kept powered up all the time the unit is connected to the mains supply. The front-panel power-switch powers all other circuitry down and power consumption in this mode is less than 2W.
This means that even though the power-switch is off, it may be possible to hear a slight residual hum coming from the mains transformer inside the amplier. This is perfectly normal. If the unit is to be left unused for an extended period, however, we recommend that it is disconnected from the mains supply.
The 12V-trigger uses a 3.5mm mono jack plug, wired as follows:
Sleeve: Ground
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Tip: Active
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When the C31 is powered-on, the tip carries 12V, current­limited to 30mA; other­wise the tip carries 0V.
The remote-in also uses a 3.5mm mono jack plug, wired as above. Remote control signals must be in modulated RC5 format, with a voltage level of 5–15V. Note that the remote receiver will require its own power-supply.
Details of the Xantech ‘Dinky Link’ can be found at www.xantech.com, or ask your dealer.
C31/P35/P1
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C31/P35/P1
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C31/P35/P1
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Engl ish
Using your C31 pre-ampli er

Switching the C31 on

The power button bm switches the unit on and off; alternatively, the unit can be switched in and out of stand-by mode by pressing the 2 button on the remote control handset.
The power light (next to the “C31 Pre-Ampli er” text) indicates the state of the ampli er:
1. a red light means that the ampli er is in stand-by mode;
2. when you switch your ampli er on, the power light glows amber for a few seconds; during this time the outputs are muted;
3. the light changes to green when the ampli er is ready for use.
The power light may  ash if a fault has occurred – the fault type is shown on the display. See page 16, “Troubleshooting,” for help in resolving fault situations. If the fault cannot be cleared, unplug your ampli er and contact your Arcam dealer.

Changing the volume

Use the control knob 7 in the centre of the display to change the volume. Turn the knob clockwise to increase the volume, anti-clockwise to reduce it.
The output of the C31 can be muted by pressing MUTE 1. Press MUTE for a second time (or change the volume) to release the muting.

Selecting an audio source

A source-selection button 8 is used to select the source that is connected to the input corresponding to the button. A light above the relevant button indicates which input is selected and this information will also be shown on the display.
TAPE
To listen to the device connected to the tape input, press the TAPE button.
Note that two source lights will be illuminated when the TAPE button is pressed: the tape light itself, together with an indicator to show which source is being routed to the tape outputs for recording purposes. To change this recording source, please see below.
To de-select the tape input, press the TAPE button for a second time.
C31 PRE-AMPLIFIER
REF TRIM POWERPHONES
PHONO
CD TUNER AV DVD
VCR TAPE
ENTER
MUTE RECORD SELECT
BALANCE DISPLAY
AUX
It is important to realise that the volume indication on the display may not an accurate indication of the ‘percentage’ of the ampli er power in use. Your power ampli er may deliver its full power long before the volume control reaches its maximum position, particularly when listening to ‘loud’ inputs, such as CD’s. In contrast, lower­level inputs, such as tuners and cassette decks, will sound quieter for the same shown volume level. To compensate for this (to make all inputs the same ‘loudness’ for a given value on the display), the input levels of each source may be adjusted. This is done using the product con guration menu, described on page 8.
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