Extron-electronics PVS 204SA User Guide Manual do Utilizador descarregar pdf (Página 23)

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PVS 204SA Switcher • Installation

Ampliﬁed Out — Wire and connect the supplied 4-pin 5 mm

connector to this port, marked “L” and “R” (left and right) for

4 or 8 ohm speaker output.

Do not tie both L and R outputs to each other and/or to ground.

Doing so will short out the outputs and damage the ampliﬁer.

The speaker setup covers two individual speakers of 8 ohm impedance or two

pairs of speakers in parallel where each channel drives a maximum output load

of 4 ohms

Speaker Conguration

Speaker arrangement examples

Ceiling and program speakers can be arranged several different ways.

The following factors affect the choice of speaker placement:

• Dimensions of the room

• Room acoustics

• Desired evenness of sound coverage

• Audience mobility (whether the audience will be seated or not)

• Ambient noise level

• Type of music or other audio source

Some general ideas for speaker placement are included below.

2 Front Program Speakers

Program Speakers

Classroom Top View

4 Ceiling Speakers

Classroom Top View

Ceiling

Speakers

Figure 2-15 — Examples of speaker layouts

L R

4/8 Ohms

AMPLIFIED OUTPUTS

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Extron-electronics PVS 204SA User Guide Manual do Utilizador Página 23