soundavo M66-EXT Six-Zone Expansion Power Amplifier Owner’s Manual

June 5, 2024
Soundavo

M66-EXT Six-Zone Expansion Power Amplifier
Owner’s Manualsoundavo M66-EXT Six Zone Expansion Power
Amplifier

DEAR CUSTOMER
Thank you for purchasing this product. For optimum performance and safety, please read these instructions carefully before connecting, operating or adjusting this product.  Please keep this manual for future reference.

WARNING

  1. Do not expose this unit to water, moisture, or excessive humidity.

  2. Do not install or place this unit in a built-in cabinet, or other confined space without adequate ventilation.

  3. To prevent the risk of electrical shock or fire hazard, due to overheating do not obstruct the unit’s ventilation openings.

  4. Do not install near any source of heat, including other units that may produce heat.

  5. Do not place the unit near flames.

  6. Only clean unit with a dry cloth.

  7. Unplug the unit during lightning storms or when not used for an extended period of time.
    A surge protector is strongly recommended.

  8. Protect the power cord from being walked on or pinched, particularly at the plugs.

  9. Use the unit only with accessories specified by the manufacturer.
    0. Refer all servicing to qualified personnel.

CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

soundavo M66-EXT Six Zone Expansion Power Amplifier -
warning

INTRODUCTION

Soundwave M66-EXT, specially designed for custom integration of whole home audio systems, the M66-EXT serves as an expansion amplifier for the Soundavo WS66i to expand other 6 zone speaker outputs. it provides up to SOW x 2 power by class D amplifier and distributes at most to 18 zones (with 1x WS66i and 2 x M66-EXT), which all can be controlled by APP, or the optional keypads & IR remote controller.

FEATURE

  • Works together with Soundavo WS66i to expand speaker zone in custom integrated multi-room audio systems from the original 6 zones to 12 zones (with Slave 1).
  • 6 zones of high efficiency with more than 85% Class D amplification with 4/8 ohms capable.
  • Each zone is also bridgeable to 100W RMS @ 8 ohms, giving you the option to increase power output to select speakers if needed.
  • 6 LEDs for 6 zones Power On, Standby, and Mute.
  • Built-in IR emitter output.
  • Mini Jack TRS PRE-AMP output on each zone.
  • Can be controlled via WS66i Control APP under Slave 1 and 2 pages for the source selection, volume, zone on/off, treble, bass, mute, and balance.
  • Interlocks power on/off with Soundavo WS66i via Trigger I/O.
  • Works with optional keypad/IR remote controller.
  • 1U-high, rack-wide enclosure; removable rack ears and faceplate included.
  • AC 115V / 230V input auto switching

SPECIFICATION

Output Power: 25W x 2 per zone (at 8Ω)
Output Power: 50W x 2 per zone (at 4Ω)
Output Power: 100W per zone (Bridged at 8Ω)
S/N: >85dB A WTD
THD: <0.1%
Frequency Response: 20Hz-20KHz
Protection Function: Overload, Short Circuit
System on Voltage: DC +12V
External Mute Voltage: DC +12V
Power Supply: AC115V/60Hz, 230V/50Hz
Output Connection: 4P Terminal Block

FRONT PANEL

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  1. Standby/Zone ON LED
    These six LEDs illuminate to indicate the status of each zone.
    Blue: In Standby mode.White: In Activate mode.Blue/White: In Mute mode.

REAR PANEL

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  1. PRE-AMP OUTPUT
    Stereo Line level output on each zone.
    Connect to additional amplifier with higher output, or powered Sub-woofers.

  2. SPEAKER OUTPUTS
    6 x Removable terminal block connectors on each zone.
    Each zone provides 2x50W @ 4 Ohm or 100W@ 8 Ohm in bridge mode.

  3. STEREO/BRIDGE SWITCH

  4. IR EMITTERS
    Those two corresponding Infrared (IR) emitter outputs can be used to control the audio source component/device that connected to the
    WS66i Master unit (see page 12)

  5. PA-IN
    12VDC paging trigger input

  6. EXT. MUTE/CONTROL OUT
    Mute the entire system with the 12VDC MUTE IN.
    Use the12VDC CONTROL OUT to trigger other equipment

  7. EXPANSION IN/OUT OF PORT
    Expandable to 18 zones with 3 x Multi-zone Controller systems.
    SWITCH

  8. SLAVE 1/SLAVE 2
    Set the unit ID when connecting multi Controller systems
    KEYPAD CONNECTOR

  9. RJ-45 jack Connects to the keypad hub for 6 keypads.

  10. AC INPUT/POWER SWITCH

KEYPAD  (optional accessories)

soundavo M66-EXT Six Zone Expansion
Power Amplifier - figure 3

  1. Numeric LED Display: The digital LED display shows the number of the source device, as well as the volume, treble, and bass level.

  2. VOL. LED: When illuminated, this LED indicates that the Numeric LED is displaying the volume level. Use the Up and Down buttons to increase and decrease the volume level.

  3. Source LED: When illuminated, this LED indicates that the Numeric LED is displaying the source selection.

  4. EXT. LED: When illuminated, this LED indicates that the Mute function is enabled or that a PA broadcast is in progress

  5. Treble Mode LED: When illuminated, this LED indicates that the Numeric LED is displaying the treble level. Use the Up and Down buttons to increase and decrease the  treble level.

  6. Bass Mode LED: When illuminated, this LED indicates that the Numeric LED is displaying the bass level. Use the Up and Down buttons to increase and decrease the bass level.

  7. Infrared (IR) receiver: The IR “eye” receiver the infrared remote control signals. Signals sent from the include remote control are used to control the wall plate keypad.

  8. Up Button: Use this button to increase the volume, treble, or bass levels (depending on which mode is selected). If the zone is muted, pressing this button will unmute it.

  9. Down Button: Use this button to decrease the volume, treble, or bass levels (depending on which mode is selected). If the zone is muted, pressing this button will unmute it.

  10. Previous Source Button: Use this button to cycle backward through the list of available sources.
    For example, if source 3 is currently selected, pressing this button will change to source 2.

  11. Next Source Button: Use this button to cycle forwards through the list of available sources. For example, if source 3 is currently selected, pressing this button will change to source 4.

  12. Select-Power Button: Press and hold this button for about 3 seconds to turn the zone on or off.

  13. When the zone is on, pressing the button will cycle through the available adjustment modes.

REMOTE CONTROL (optional accessories)

soundavo M66-EXT Six Zone Expansion Power Amplifier - figure
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  1. Power: switches power (On/Off) for a certain zone.
  2. Mute: allows you to mute a certain zone.
  3. BAL: These L & R buttons can adjust the balance of the L/R channel in stereo mode.
  4. VOL: Volume adjustment
  5. Source: Used to select signal input.
  6. Treble: This allows you to enhance or reduce the Treble of the signal in the individual zone.
  7. Bass: This allows you to adjust the Bass for the individual zone

CONNECT AND OPERATE

(Before you begin to install the M66-EXT)

  • The M66-EXT unit is not working as a stand-alone, so it does not have an audio input and volume controls, the main 6 audio sources will come from the WS66i master unit

  • Connect all the audio source devices to the WS66i MASTER unit to the Source Input 1(RCA), 2 (RCA), 5 (Mini Jack TRS), 6 (Optical / Mini Jack TRS), and WiFi Streamer or USB stick to Source Input 3 & 4.

  • Make sure you connect with the WS66i matrix amplifier as the MASTER Unit via the ribbon cable to the M66-EXT unit.

  • The M66-EXT Slave 1 (Slave 2) unit only can be controlled via WS66i APP’s Slave 1/2 window page (or the optional keypad/remote controller)

  • By using the expansion cable, the WS66i can be expanded up to 18 zones using 2 additional complete M66-EXT units. Connect the expansion cable from the WS66i  MASTER unit output and cascade the units from output to input. Next, you must select which M66-EXT unit will be the SLAVE 1, or SLAVE 2 by using the select switch. The following data and control are provided between units using the expansion cable: All source audio information – All RS232 control data – All MCU communication between the MASTER and SLAVE units.
    Note, only WS66i as the main MASTER unit needs to be connected to the LAN with the internet router.
    soundavo M66-EXT Six Zone Expansion Power Amplifier - figure
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  • Connection between WS66i and M66-EXT:

    1. Make sure each unit is correctly addressed:
      The WS66i unit set as “Master” (for Zone 1 ~ Zone 6)
      First M66-EXT unit set as “SLAVE 1” (for Zone 7 ~ Zone 12)
      Second M66-EXT unit set as “SLAVE 2” (for Zone 13 ~ Zone 14)

    2. Use the provided ribbon cables to connect the OUTPUT of the original WS66i MASTER unit to the INPUT of SLAVE1

    3. To cascade the source into a third unit, using the provided expansion ribbon cable, go out of the OUTPUT port from the device addressed as SLAVE 1 into the INPUT  port of the device addressed as of SLAVE 2

USING THE PRE-AMP OUTPUTS
There are unbalanced, line-level Pre-Amp outputs that correspond to the first Outputs. These can be used to connect an additional amplifier, expand zones, or connect a  powered subwoofer. The Pre-amp output levels are not fixed and are able to be controlled via IR, RS232, keypads, and network.soundavo
M66-EXT Six Zone Expansion Power Amplifier - figure 6

CONNECTING THE SPEAKERS

The M66-EXT can works with speakers that are 4-8 ohms, there are two modes that can be set for different setups: Stereo or Bridge.
An 8 ohms speaker can only be used when in BRIDGE Mode, to choose between modes, please follow the speaker connection information below:

Connecting speakers
Connect the speakers to the unit with the supplied Euroblock plug and commercially-available speaker cables.

Connecting speakers in bridge mode
Connect the speakers to the unit with the supplied Euroblock plug and commercially-available speaker cables, and set the
NORMAUBRIDGE switch to “BRIDGE”.
Note
Unplug the unit’s power cord from the AC wall outlet before changing the BRIDGE (YES/NO) switch setting.

soundavo M66-EXT Six Zone Expansion Power Amplifier - figure
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  1. Loosen terminal screws.
  2. Insert cables.
  3. Securely tighten terminal screws.
  4. Insert the Euroblock plug into the SPEAKERS terminals of the unit.

Note

  • You must use the supplied Euroblock plugs. If the plugs have been lost, please contact your Yamaha dealer.
  • Recommended cable gauges for the Euroblock plug: AWG26 (0.13 mm) to AWG16 (1.3 mm?)
  • To prepare the cable for attachment to a Euroblock connector, strip the wire as shown in the illustration using stranded wire to make connections. With a Euroblock connection, stranded wires may be prone to breakage because of metal fatigue due to the weight of the cable or vibration. When rack mounting your device, use a  lacing bar when possible to bundle and fasten the cables.
  • Do not tin (solder) the exposed end.

CONNECTING THE KEYPADS

The M66-EXT can be controlled via 6 POE-enabled keypads (optional). This allows for source control from each specific zone as well as IR routing to the appropriate source devices once selected. The M66-EXT also comes with an optional hub that allows for all 6-keypads to be connected to the amp via Cat5e/6.

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Without power being connected, connect a CatSe/6 cable to the RJ45 port labeled KEYPADS on the back of the AMP We recommend terminating the Cat5e/6 using the 568B standard.
At this point, it is also important to address your keypads. Refer to the chart below which is also found on the PCB board of the back of the keypad to set the dip switches according to the zone you would like them to control. soundavo M66-EXT Six Zone Expansion Power Amplifier - figure
9

Connect the other end of the Cat5e/6 to the lone RJ45 port found on the front side of the Keypad Hub. The front is what fits into the provided decora plate. Note that the  CatSe/6 between the unit and the hub should only be between 7-1Oft. The RJ45 ports on the back of the Keypad Hub are not assigned but the single RJ45 port isolated on the  bottom of the hub is reserved for cascading units. soundavo M66-EXT Six Zone Expansion Power Amplifier - figure
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Connect the other end of the terminated Cat5e/6 to the RJ 45 port on the back of the assigned keypad and installation is complete. Complete zone and source control, as well as IR and power, are provided through the single CatSe/6.

CONTROL: When any zone is on, 12Vdc is applied to the CONTROL OUT. When All zones are OFF, 12Vdc removed from the CONTROL OUT
Trigger Inputs: PA- IN: Apply 12Vdc for input #1 override on all six zones.
MUTE – IN: Apply 12Vdc to mute all zones.

IR EMITTERS

The M66-EXT provides two corresponding Infrared (IR) emitter outputs that can be used to control the audio source component/device that connected to the WS66i Master unit, remotely through the WS66i/M66-EXT IR system.
When being used with keypads (optional), the M66-EXT can receives a total of 2 IR signals from each zone and routed back through the CatSe/6 and Keypad up to the amplifier to control all (global) sources that is connected to the WS66i master unit.
For example, if the CD Player device has been connected to Input Source 2 on the WS66i master unit, simply connect an IR emitter to the IR Emitter output jack (either one) from the M66-EXT, and then connect the flasher from the IR emitter cable to the IR receiver window on source 2 (CD Player) The user will be able to control the CD  Player to power the device on/off, change settings, etc…
(Repeat this for the second Infrared (IR) enabled sources for complete IR source control)

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