Designed and engineered in the United Kingdom
Contents Overall Description Technical specification Front Panel Controls Rear Panel Connectors and Controls Appendix 1 Microphone compressor and ducker operation Appendix 2 Remote Zone Controller connections Appendix 3 LOOP input and output connections Appendix 4 RS-232 Interface Appendix 5 Operation with Audica Speaker Eq and Subwoofer 3 3 4 4 8 8 8 9 12 Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions.
Overall Description: The Audica Professional MULTIzone is a zone control mixer with 4 zone outputs and 6 music inputs plus a microphone input for paging applications. Each of the 4 zone outputs can be independently configured to provide music from one of the inputs plus the paging microphone, with the relative levels set by front panel controls. When the microphone is used, the music is automatically reduced in level (“ducking”) to allow for announcements to be heard clearly.
Front Panel Controls c a b d c b d c a) Input Select Choose one line input channel (1 to 6) to send to each zone output (1 to 4). b) Zone Volume Set the volume level for each zone (1 to 4). Turn clockwise to increase volume, anticlockwise to decrease. c) Mic Volume Four screwdriver controls set the volume level from the paging microphone mixed with each zone’s music signal (zones 1 to 4). When set to zero, music ducking (see Appendix 1) is disabled for that zone.
g1 g2 g3 g4 g5 g6 g g7 g4) BASS Low-mid tone control on microphone channel (centred at 150Hz). g) Microphone Input An XLR balanced input for a paging microphone. A 48V “phantom power” option is provided for active or condenser microphones – selected via the DIL switch (see next page). The microphone signal can be processed in various ways using 6 rotary potentiometers. g5) DUCKER – FLOOR Rotary potentiometer sets the music ducking “floor level” (music attenuation level).
j i h h) DIP switch DIP switches are “ON” when down and “OFF” when up. The default setting is with all switches set OFF (up). The table below describes their effect.
k l k) LOOP input and output connectors These are 15-pin D-type connectors (male for Loop out, female for Loop in) for looping the audio inputs (and optionally Mic, Mute and RS-232) to other units. Up to a total of 7 MULTIzone units can be linked in this way. When a unit has a loop cable connected to its LOOP IN socket it becomes a “Slave”. The unit which has nothing plugged into its LOOP IN socket is the Master unit. See Appendix 3 for further details.
Appendix 1 Microphone compressor and ducker operation A variable compressor effect is provided to help level out differences in loudness caused by different microphone users. This also helps prevent overload of the loudspeakers from any knock or pop noises received by the microphone or the differing mic technique of various users. The “Compression Ratio” control adjusts the balance between compressed and uncompressed mic signal.
Appendix 4 RS-232 Interface An RS-232 control interface allows remote control of all basic functions of MULTIzone. The RS-232 interface is uni-directional, MULTIzone does not transmit any data. Commands will be sent as RS-232 serial communication at 9600 baud, 8 bits, no parity bits, 1 stop bit and no flow control. All characters will be sent as ASCII, not delimited and ending with a line feed (0x0A).
Unit command format Command Type RS-232 Command UNIT $sXXsbyoff Unit Y enters standby UNIT $sXXsbyon Unit Y powers up from standby UNIT $sXXmuten Unit Y all zones enter mute UNIT $sXXmutdis Unit Y all zones de-mute UNIT $sXXcomen Unit Y all zones enter RS-232 control mode UNIT $sXXcomdis Unit Y all zones enter manual front panel control mode MULTIzone command response Where XX = Responding unit Y DIP switch address 01 1 05 09 2 3 13 17 21 4 5 6 25 7 Zone command format As a nu
Where can be MULTIzone command response vol Sets absolute volume level of zone vo+ vo- Range of Notes Increments volume level of zone Decrements volume level of zone 000 to 027 N/A N/A Will not increment above 027 Will not decrement below 000 muton mutoff Zone enters mute Zone de-mutes N/A N/A Previous volume level recorded Previous volume level restored comon comoff src Zone enters RS-232 control Zone exits RS-232 control Selects input source (1 through 6) as zone output N/A
Appendix 5 Operation with Audica Speaker Eq and Subwoofer If the MULTIzone is to be used with a speaker system which requires Audica Speaker Eq and also includes a subwoofer, then two zones must be employed. One zone is set to a flat response (Eq off ) to drive the subwoofer and one with Eq on to drive the full range speaker. This appendix describes two arrangements which can achieve this end. 1.
2.0 CASCADE 2 ZONES Source signal SOURCE Select 1 - 5 only Input gain set to suit source ZONE 1 Speaker Eq OFF ZONE 1 Volume Control is “Master” Z1 output to Subwoofer Z1 output also to input 6 SOURCE To input 6 Select 6 Set Input 6 gain to x1 (see below) ZONE 2 Speaker Eq ON ZONE 2 Fix volume at Maximum Z2 output to full range speaker • Feed source signal to any of inputs 1 to 5, selected to go to Zone 1 (and set input gain as normal).
w w w.audicapro.co.uk Our policy is one of continuous product improvement, we reserve the right to change the designs and specications without notice. All information is given in good faith. The manufacturer accepts no responsibility for errors, omissions or incorrect assumptions. This symbol means do not dispose of as municpal waste. Re-use or recycle wherever possible. Electrical/Electronic Equipment may contain substances harmful to the environment.
