Massive Audio M8S Betriebsanweisung PDF herunterladen (Seite 21)

SYSTEM APPLICATIONS

The M8 is a versatile multichannel amplier that can be used in a variety of applications. The following pages will provide three M8

system examples: multiroom, home theater with a second zone and mixed use in a multizone system. These are by no means the

only uses for this versatile piece. The M8 can be used for just about any application where multiple audio channels are required.

For assistance with M8 applications, please call Procient Audio Technical Support at 877.888.9004 or email techsupport@pro-

cientaudio.com. Procient Tech Support is open every weekday, except holidays, between the hours of 7:00AM and 5:00PM PST.

Multiroom

The multiroom system shown in Diagram 21 features the M8 when used to add additional rooms of amplied audio to an A/V

Receiver, (coincidentally a Procient M40). This system is a single-source system, meaning the same source will be played through

all active speakers at the same time. The system shown allows up to six or eight rooms of audio depending upon conguration.

Note: The M40 allows direct connection of two pair of speakers, or up to four pair if using impedance matching volume controls.

Those speakers/volume controls are not shown in Diagram 21. Please refer to the Owners Manual if using another brand receiver

for information on speaker connections/limitations.

Audio/Video sources are connected to the M40 Receiver in a normal manner. They are selected and played in a normal manner us-

ing the front panel controls or a remote control. When a source is selected it will play through all active speakers. With this type of

system, it is best to set a master volume on the Receiver and use the individual room volume controls to adjust volume.

Bus In

The M8 is connected to the M40 Receiver Pre-Out. The Pre-Out is a variable line level audio output that is connected to the M8

BUS IN. The M8 BUS IN audio signal will output through any channel(s) that are set to BUS L (left) or BUS R (right).

1. Connect the M40 Pre-OUT to the M8 BUS IN.

2. Set the Channel Input switches for all channels that are to output the BUS IN to BUS L (left) and BUS R (right).

Bus Loop

The M8 BUS LOOP is a xed line level audio output that can be used in a number of dierent ways. In the example shown, the BUS

LOOP is being fed back to the M40 Receiver Main IN. The M40 features a pre-out/main in connection for various purposes. In this

case, that connection will be used to insert the M8 into the source audio signal path. That is: when a source is selected, it will out-

put the M40 Pre-OUT. Via the M8 BUS IN connection, all M8 channels will be fed the source audio signal. The BUS LOOP will output

that same audio signal back to the M40 Main IN which feeds the M40 amplier. If the BUS LOOP is not connected to the M40 Main

IN, the M40 will not output amplied audio.

1. Connect the M8 BUS LOOP to the M40 Main IN.

The BUS LOOP can also be used to add additional M8 ampliers for additional rooms of amplied audio. Up to ve

total M8s can

be connected in this manner.

1. Connect the M8 BUS LOOP to the next M8 BUS IN. Repeat to connect up to ve M8s (20 amplied rooms).

Power Mode Switch

For convenience, the M8 can be setup to turn ON/OFF automatically when the M40 is turned ON/OFF. There are two automatic

power modes: Audio Sensing (Auto ON) and Voltage Sensing (Trigger).

Audio Sensing

Requires no additional connections. When the M8 detects audio on any input it will automatically turn all channels ON.

1. Set the Power Mode Switch to Auto ON.

2. Set the Front Panel ON/OFF switch to the ON (in) position.

Voltage Sensing

Requires connection of a 3-30 V AC/DC control voltage. For the example shown, a 12V power supply can be connected to one

of the switched outlets on the M40 and connected to the M8 Trigger jack.

1. Connect a power supply to one of the M40 switched outlets. Connect the power supply to the M8 Trigger jack, (maintain

proper polarity).

2. Set the Power Mode Switch to Trigger. Set the Front Panel ON/OFF switch to the ON (in) position.

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