Broadcast Tools ProMix 12 Especificaciones descargar pdf (Pagina 4)

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ProMix 12 Installation and Operation Manual

INSTALLATION

2.1.3 LINE INPUTS

The ProMix 12 accommodates up to 9 stereo “line level” sources. Source equipment

can be either balanced or unbalanced, operating at either professional (+4dBm) or

consumer (-10dBm) levels. It is connected via the Line Input T/R/S jacks (3). The

upper jacks are for Left channel inputs; the lower jacks are for Right channel inputs.

Mating TRS plugs should be wired as followed:

Unbalanced sources: TIP: Hi (or “hot” lead)

RING: (leave unconnected)

SLEEVE: Ground (or shield)

Balanced sources: TIP: Hi

RING: Low

SLEEVE: Ground

Note: The console terminates the Low input to ground via a 1K resistor. In

some cases, connecting the Low audio lead to Ground will produce a slightly

higher audio level. However, check the manual of the source equipment to be

certain grounding the Low output lead will not cause problems. It is general-

ly OK to do so on older transformer-coupled outputs; active (transformerless)

outputs may or may not permit this.

2.1.4 USING A TELEPHONE HYBRID

If the console will be interfaced to a telephone hybrid (for broadcasting telephone

calls), the Receive (“caller”) output of the hybrid should be fed into Channel 4. This

is because the Mix Minus output of the console contains ALL line sources mixed to

the AUDITION bus, except for Channel 4. The” Audition-minus-caller” Mix Minus

output is normally fed back to the hybrid’s send input. The caller will therefore be

able to hear all program sources mixed on the Audition bus, minus him.

2.1.5 AIR MONITOR INPUT

The console provides a Monitor Air input (4) that can be used to feed an off-air mon-

itor into the console’s Monitor system. This input is electrically identical to the

other Line channel inputs, and should be connected the same way. Any tuner or

demodulator can be used.

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