Multizone Amplifier MZA-4.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. 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.
Quick Install Guide Unpacking Immediately upon receiving your MZA-4.7 inspect the carton for evidence of mishandling during shipment. Then carefully unpack the unit and inspect for damage. Please save the shipping carton and all inner packing materials in the event that the MZA-4.7 needs to be shipped for service or moved to a new location. Should you discover that the MZA-4.7 has been damaged during shipping please contact your dealer immediately. 1.
Precautions 1. Recording Copyright—Unless it’s for personal use only, recording copyrighted material is illegal without the permission of the copyright holder. 2. AC Fuse CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE T6.3A 250V FUSE. REFER REPLACEMENT TO QUALIFIED SERVICE PERSONNEL. 3. Care—Occasionally you should dust the unit all over with a soft cloth. For stubborn stains, use a soft cloth dampened with a weak solution of mild detergent and water.
Features Thank you for purchasing an Integra MZA-4.7 Multi-Zone Amplifier. Please read this manual thoroughly before making connections and plugging in the unit. Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment from your new Multi-Zone Amplifier. Please retain this manual for future reference. Multi-Zone, Multi-Source, Video Switching The MZA-4.
Features—Continued advantageous to have different volume control but the same source, or the same volume with separate standby control. Zone linking is setup either via the front panel user interface or by the IMC program. 32 Zones There are 32 zones of possible control. On a MZA-4.7 each zone must be different, however in a multiple amplifier stack same zone amplifiers are possible – they simply mimic every parameter.
Part Names and Functions Front Panel 1 2 3 4 Multi Jog Push to Enter Zone 1 2 3 4 USB MZA- 4.7 6 7 A Front Panel Solid Aluminum front Panel. B Infra-Red Receiver Receiver for the MZA-4.7 IR control – Not IR pass through! C LCD display Back lit LCD display for menu guided control and programming. The display is dimmed when all zones are OFF. D Multi Jog The display menus are navigated and selections made using left and right rotation and pushes on the knob.
Part Names and Functions—Continued Rear Panel 1 2 3 4 L A AC INLET IEC socket. B Speaker Terminals Plug in terminal clamp connectors accept 1.5mm2 speaker wires. C ZONE PREOUT Audio and composite video outputs. D RS232 Comm Port The port is used for setup, control or monitoring. The interconnecting cable must be straight: 9 pin ‘D’ connectors. E EXPANSION BUS OUTPUT 34 way IDC header. Connects to the expansion bus input of the next MZA-4.7 in the stack.
Typical System Configuration Lounge Study TV or screen ACTIVE SUB Keypad Zone 1 Zone 2 Bedroom & Ensuite Gym TV or screen TV or screen Keypad AMP Zone 3 Zone 4 Tuner SAT receiver To IR2 To IR1 CD changer DVD Player To IR1 + IR2 VCR DVD Changer To IR1 + IR2 Fig 1 9
Typical System Configuration—Continued Fig 1 depicts a typical configuration, where the MZA-4.7 is providing audio into four listening zones. Each zone consists of a room with a pair of speakers, and a suitable controller. Additionally a zone may require TV’s or screens. In Fig 1 three such screens are shown in the Lounge, Gym, and Bedroom. Each zone may be listening/watching any of the connected sources: Satellite Receiver, DVD, Video, Digital Music Server, CD Changer, or Tuner.
Controller Termination Orange and Green White/Blue White/Green White/Orange CAT5E cable used to connect controllers to MZA-4.7 Pin # Wire Color Keypad function 1 White/Orange +12V DC supply 2 Orange 0V supply 3 White/Green IR output 4 Blue nc 5 White/Blue Data input 6 Green 0V supply 7 White/Brown nc 8 Brown nc Table 1 Fig 2 The recommended wiring and color scheme is shown in Fig 2.
Advanced IR Control Tuner 2 To A SAT 2 Tuner 1 To B SAT 1 CD changer To IR2 Fig 3 IR routing – discussed in “Typical System Configuration” on page 9 – is used to address specific centrally located source components. When several same brand and model source components are required in an installation, steps must be taken to isolate the radiated IR from interfering with their discrete operation.
Multiple MZA-4.7 Stacks To next amplifier in the Stack Tuner SAT receiver To IR2 To IR1 CD changer DVD Player To IR1 + IR2 VCR DVD Changer To IR1 + IR2 Fig 4 In large installations where multiple MZA-4.7’s are required, the expansion bus may be used to convey inter-amplifier control, source component Audio, and IR. Fig 4 shows inter-connected amplifiers using an expansion bus lead. The source component audio inputs must be plugged into the first MZA-4.
Zone Linking Lounge Study TV or screen Keypad Zone 1 SAT receiver ACTIVE SUB Zone 2 To IR1 CD changer DVD Player To IR1 + IR2 DVD Changer VCR To IR1 + IR2 Fig 5 Zone linking is a useful feature for simplifying control in closely coupled rooms, where the rooms require different volume levels and On/Off status, yet the same audio source.
Automation Control System Interface Contact closure required when paging Line Level Input Phone or Paging System Fig 6 Any MZA-4.7 parameter is controllable using the serial RS232 interface. The RS232 protocol is outlined in the following section, and encompasses both the amplifier and connected keypads. The interface is bidirectional, allowing the amplifier and network to be monitored. The interconnecting cable must be straight: 9 pin ‘D’ connectors.
RS232 Protocol The RS232 serial port provides data acquisition and control of Integra networks by a home automation system, or PC. The interconnecting cable must be straight: 9 pin ‘D’ connectors. Baud Rate = 9600, Characters are all ASCII. Command Structure: line feed.
RS232 Protocol—Continued Data Command Standby (01) Mute (02) Source Selection (03) Volume (04) Bass (05) Treble (06) Balance (07) Send all parameters (09) Amplifier features (0C) Maximum Volume Limit (0D) Link Zone (0F) Volume Up (11) Volume Down (12) Zone Name (1C) Preamplifier Volume Mode (1D) Preset Selection (1E) Volume BCD Format (26) Content 00 – Standby OFF 01 – Standby ON 04 – Toggle 00 – Mute 01 – Un-mute 02 – Toggle Mute 00 – S5 01 – S6 02 – S7 03 – S4 04 – S8 05 – S1 06 – S2 07 – S3 00 – A0 ra
RS232 Protocol—Continued ■ A Standby ON command implies that the amplifier is not muted, if the amplifier was previously OFF, a mute command must follow the Standby command if it is muted. ■ Not all Command and Data commands are covered in this document. ■ The expected reply for the “Send all Parameters” command (09) is >144 bytes. All command fields listed in this document are contained in the reply. The reply also contains advanced commands not listed in this document.
RS232 Protocol—Continued Keypad Key Codes An Integra Keypad may be directed to emit its learnt IR commands via RS232 control. This is achieved by sending a ‘Cause key press on Keypad’ command “0B” followed by the zone, and the Keypad key code (data). The Keypad key code is encoded with IR string repeats. (See table below) To terminate a continuously repeating ‘Key press’, command a “FF” keypad key code must be sent.
Menu Navigation Front Panel user interface: The MZA-4.7 has a LCD display and multi-jog (Rotary Encoder with Push Select) for menu navigation. The menus are hierarchal providing access and control of all amplifier functions. The user navigates through the menu using left/right multi jog rotations and pushes for selections or escapes. The vertical bars indicate the selected function, while the animated bars indicate the selected function may be edited.
Menu Navigation—Continued • Preamp Volume: Only displayed if the room is a preamplifier. • Mode: Track Two options track or Independent • Track Offset: 0 –37 to +25 range of adjustment. • Return Steps back to More function menu. • Return: Steps back to the Primary functions menu. ■ System Setup The System Setup menu is entered by pushing and holding the Multi Jog for > 10 seconds.
Programming Using IMC (Integra Music Center) Overview IMC is an amplifier setup program. Full control and tracking of any MZA-4.7 zone is provided. The program runs on PC’s running Win 2000 - Win XP operating systems, and communicates via either RS232 or USB. When a MZA-4.7 is first attached to a PC running IMC the clock is automatically set to the PC’s current time and date. A Keypad controller connected to the amplifier may also be controlled by IMC.
Programming Using IMC (Integra Music Center)—Continued ■ Zone Select To select the zone move the cursor over the zone tab’s down arrow and left click. A zone list window appears – make the selection with a left mouse click. Placing the cursor over the zone tab’s room description displays information about the amplifier’s device ID/serial number. ■ Zoned Functions • Standby On, Off control of the amplifier or preamplifier is achieved by a left click over the standby buttons.
Programming Using IMC (Integra Music Center)—Continued • Volume Levels The volume sliders may be changed either by left clicks above or below the displayed level, or by dragging the level down using a left click and hold. Note: If the amplifier is in “Tracking” mode then changing one volume changes the other.
Programming Using IMC (Integra Music Center)—Continued Setup Window The window provides the means to control the occasionally used functions like bass, treble, amplifier and preamplifier balance and loudness. These are all adjusted using a left mouse click while above the button or slider. Note: The preamplifier and amplifier share the same bass and treble control. Loudness is defeated when the preamplifier is set to “Independent Mode”.
Programming Using IMC (Integra Music Center)—Continued Preset Setup Window ■ Preset Programming Preset programming effects all zones on the MZA-4.7. There are six momentary preset buttons – Preset 1 - Preset 6. These presets are stored in the MZA-4.7, and may be setup using the IMC setup window. Left mouse click over “Set up preset 1” and change any MZA-4.7 function i.e. On status, volume level, source selection, even bass, treble etc.
Programming Using IMC (Integra Music Center)—Continued ■ Source Control Alarm Clock Programming If a KEY-5.7 keypad is connected to the MZA-4.7, then source control can also be included in an alarm preset. In IMC’s main window; file open a KEY-5.7 keypad Window. Select the connected Keypad’s zone in “Zone” tab. If the Keypad is controlling a Preamplifier zone (which is in Independent Mode) then Left click “Preamp.” Left clicks on the KEY-5.
Specifications Amplifier Section General Rated Output Power (FTC) Front L/R: 50 watts minimum continuous power per channel, 8 ohm loads, 2 channels driven at 1 kHz, with a maximum total harmonic distortion of 0.05% THD (Total Harmonic 0.05% (Power Rated) Distortion) 0.
