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INTRODUCTION

The Arcam Alpha 9 integrated amplifier, is derived from the

highly successful Arcam Delta 290 model. It is rated at 70 watts

per channel into 8 ohms. The Alpha 9 is extremely versatile and

suitable for both conventional and Audio Visual (home cinema)

based systems.

It can be used as an integrated amplifier or as a preamplifier to

drive external power amplifiers. The preamp out sockets also

allow the addition of an Alpha 9P power amplifier to give a true

bi-amplified system. In this configuration the power amplifiers

within the Alpha 9 integrated amplifier are retained to drive the

loudspeakers' treble units whilst using the Alpha 9P to drive

their bass/midrange units.

In addition to this the Alpha 9 integrated amplifier can also be

used as a stand alone power amplifier via its "power amp in"

sockets or combined with suitable loudspeakers and an AV

processor, such as the Arcam Xeta 2, to form a very high

performance home cinema system.

The Alpha 9P is a matching 70 watts per channel power

amplifier designed to complement the Alpha 9 integrated

amplifier. It offers an easy upgrade path for owners of the

Alpha 9 integrated amplifier (or the Delta 290 integrated

amplifier) to provide a bi-amplified system.

It may also be used with Arcam's Alpha 7 and 8 integrated

amplifiers, either as a simple power booster or as part of a high

performance bi-amplified system.

It can be used with almost any preamplifier and is ideal for

upgrading both hi-fi and Audio Visual systems.

This manual is in four parts:

This section has information relevant to both the Alpha

9 and Alpha 9P.

Alpha 9 integrated amplifier operating instructions.

Alpha 9P power amplifier operating instructions.

Instructions on how to bi-wire or to bi-amplify ("bi-amp")

your loudspeakers.

N.B.

Circled numbers e.g.

refer to items on the diagrams

inside the flap of the front cover.

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INSTALLATION

Check that your mains supply voltage agrees with the

voltage setting indicated on the rear panel of the unit.

■

If your mains supply voltage is different, consult your

Arcam dealer.

MAINS SAFETY

■

This product is normally supplied with a moulded mains

plug already fitted to the lead. If for any reason the plug

needs to be removed, It must be disposed of

immediately and securely, as it is a potential shock

hazard when inserted Into a mains socket.

NOTICE FOR U.K, OWNERS ONLY

■

If the plug is removed then the remaining lead must be

rewired as follows:

■

The blue wire must be connected to the terminal which

Is coloured blue or marked with the letter N.

■

The brown wire must be connected to the terminal

which is coloured brown or marked with the letter L.

■

The green and yellow wire must be connected to the

terminal which is coloured green and yellow, or marked

with the letter E or the safety earth symbol.

■

When replacing the fuse in the supplied moulded mains

plug, the integral fuse holder/cover must always be

refitted. Use a 5 amp fuse.

SAFETY STANDARD

■

This product has been designed to meet the I EC 6i

international electrical safety standard.

MAINS SUPPLY CONNECTIONS

Insert the lEC line socket of the mains lead fully into the

power inlet on the rear panel. Connect the other end to

your mains supply.

CAUTION: Your Alpha 9 and Alpha 9P generate heat when in

use, particularly at higher volumes.

It is therefore most

important never to obstruct the ventilation slots on the top and

bottom of the unit as this will cause overheating.

If the temperature of the internal heatsinks rises above a safe

level, then a thermal cut out inside the amplifier will operate.

The POWER LED on the front panel will turn amber and the

output protection relays will temporarily remove the feed to the

loudspeakers. The system will reset itself as the heatsinks cool

down.

Please note that under certain conditions it is possible for the

Alpha 9 or Alpha 9P's thermal cut out to operate when playing

music at very high levels.

This might for example happen when continuously playing

heavily compressed rock music "flat out" into low impedance

(4-6 ohm) speakers. If this happens to you, the cure is to turn

the volume down slightly and ensure the amplifier is properly

ventilated.

It is Important to point out that when playing a heavily recorded

CD it is possible to drive the Alpha 9 at full power despite the

fact that the volume control is only at 10 or 11 o'clock. This Is

because of the high output voltage from a CD player. However

the Alpha 9 also has to be capable of giving full power output

from much lower level sources, such as tuners and cassette

decks. Using these sources, the volume control setting will be

much higher before overload sets In.

Warning: This apparatus must be earthed.