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23425
MZ12
MZ8
MULTI ZONE POWER AMPLIFIER
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safety guidelines Class II product This equipment is a
Class II or double insulated electrical appliance. It has been designed CAUTION: To reduce the risk of electric shock, do not remove cover (or back). No user serviceable parts inside. Refer servicing to qualified service personnel. in such a way that it does not require a safety connection to WARNING: To reduce the risk of fire or electric sho
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c onsignes de sécurité Class II produit
Ce produit est un appareil électrique à isolation double (appareil de classe II). Il a été ATTENTION : afin de réduire les risques de choc électrique, n’ouvrez pas le boîtier de l’appareil. Les pièces internes ne sont pas réparables par l’utilisateur. Pour tout problème matériel, contactez des techniciens qualifiés. conçu pour ne pas nécessiter de connexion d
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welcome Thank you and congratulations for purchasing your Arcam MZ Contents Amplifier. Arcam has been producing specialist audio products of safety guidelines ...................................................... 2 remarkable quality for over three decades. The new MZ8 and Important safety instructions ..................................................2 MZ12 multi-zone power amplifiers draw upon all of Arcam’s Safety compliance...............................................................
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o verview Placing the unit Standby power Place the amplifier on a level, firm surface, avoiding direct sunlight an Th d e front panel power switch powers all circuitry down. The unit may be sources of heat or damp. Alternatively, the unit can be installed in a 1p 9u ” t into low-power standby operation using RS232 control or the trigger equipment rack using the rack ears supplied. Attach the rack ears to input. In standby, the amplifier’s control power supply is kept powered the sides of the
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7 c onnections Speaker terminals The MZ amplifier speaker terminals are arranged into zones, with one pair of terminals per speaker and two speakers per zone. See page 8 for information on connecting loudspeakers. Z1 Z1 Z2 Z2 Z5 Z5 Z6 Z6 Z3 Z3 Z4 Z4 R L R L R L R L R L R L _ _ _ _ _ _ _ _ _ _ _ _ 12V Trigger CLASS 2 WIRING CLASS 2 WIRING CLASS 2 WIRING Used to turn on the R R R R R R R R R R R R amplifier from a + + + + + + + + + + + + remote preamplifier. See page 11. L L L TRIM TRIM TRIM T
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speakers single wiring Speaker Installation Single wiring is the conventional wiring method of running a single cable The MZ12 amplifier allows the connection of up to twelve independent per channel between the amplifier and the speaker; this is the easiest loudspeaker channels, arranged in six stereo zones. The MZ8 amplifier technique. provides eight channels in four zones. Each zone is designed to provide If each speaker has more than one pair of connecting terminals, use the amplificati
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bi-amping Bi-amping is the separation of the amplification of low- and high- Notes on making speaker connections frequency signals over two amplifiers. You will need to connect to loudspeakers that provide separate terminals for the two cables. Each • Do not make any connections to any amplifier while speaker must have two pairs of terminals; one pair labelled HF For ‘High it is switched on. We recommend that your amplifier Frequency’, the other pair labelled LF or ‘Low Frequency’. is com
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operation Zone operation Each zone (except Zone 1) has an input switch. This switch allows the Each channel of each zone has a trim control. This recessed control input for the zone to be taken from either the corresponding zone inpuall t ows each speaker’s volume to be adjusted using a small flat blade or or the zone 1 input. This allows for the input to zone 1 to be sent to cross-head screwdriver and is ideal for compensating for differences multiple loudspeaker pairs. Switch all input swit
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Front panel indicators Troubleshooting The front panel Zone Status LEDs indicate the status of each of the If you are having trouble with your amplifier, check the following items: amplifier zones: no sound Check the following: • Red - standby • Both the source component (pre-amp) and MZ amplifier are • Amber - zone muted switched on, indicated by the front panel LED being lit green on the • Green - zone on MZ amplifier. • Flashing Red - over temperature • The MZ amplifier is not i
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specifications Continual improvement policy Arcam has a policy of continual improvement for its products. This means that designs and specifications are subject to change without notice. Continuous power output (1kHz at 0.1% THD) Single zone, both channel Ω s, 8 80W rms Single channelΩ, 4 116W rms Harmonic distortion, 80% powe Ω r ,a 8 t 1kHz 0.01% Power output, all zones all channels driven, 8 Ω at 1kHz, 0.1% THD+N 65W rms per channel Inputs Nominal sensitivity 0.9V—1.5V Input impedance 11kΩ Si
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DB9 Female 1 5 6 9 rs 232 c ontrol Introduction This document describes the remote control protocol for controlling the MZ8/12 via the RS232 interface. The document relates to MZ RS232 control protocol version 1.0. Any updates to this protocol will be posted on the Arcam Extranet website at http://www.arcam.co.uk/extranet. Serial Cable Specification The cable is wired as a null modem: Connector 1 pin Connector 2 pin Function 2 3 Rx Tx 3 2 Tx Rx 5 5 RS232 Ground Data transfer format • Tr
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Zone numbers The following zone numbers are defined: 0x01 - Zone number 1. (Zone 1 is the master zone. Commands that are global are addressed to Zone 1) 0x02 - Zone number 2. 0x03 - Zone number 3. 0x04 – Zone number 4. 0x05 – Zone number 5. 0x06 – Zone number 6. Answer codes The following answer codes are defined: 0x00 – Status update. 0x82 – Zone Invalid. 0x83 – Command not recognised. 0x84 – Parameter not recognised. 0x85 – Command invalid at this time. 0x86 – Invalid data length.
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System Command Specifications software version (0x04) COMMAND: Request the version number of the main software or the control protocol Byte: Description: of the MZ8/MZ12. St 0x21 Zn 0x01 example Cc 0x04 Command/response sequence to request the RS232 protocol version Dl 0x01 (1.4): Data 0xF0 – Request version RS232 protocol Command: 0x21 0x01 0x04 0x01 0xF0 0x0D 0xF1 - Request version main software Response: 0x21 0x01 0x04 0x00 0x03 0xF0 0x01 0x04 0x0D Et 0x0D RESPONSE: Byte: Descriptio
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a ctivate/deactivate the mute lines (0x1f ) COMMAND: Activate/deactivate the mute lines on the designated zone. Byte: Description: St 0x21 example Zn Zone number Command/response sequence to activate the mute relays: Cc 0x1F Command: 0x21 0x01 0x1F 0x01 0x0D Data1 0x00 – Deactivate mute line Response: 0x21 0x01 0x1F 0x00 0x01 0x0D 0x01 – Activate mute line Dl 0x01 Et 0x0D RESPONSE: Byte: Description: St 0x21 Zn Zone number Cc 0x1F Ac Answer code Dl Data length Data1 Relay state Et 0x0D
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23425 sh 216e issue 2 a &r c ambridge l td, pembroke avenue, waterbeach, ca Mbridge cb 25 9Qr , england
