Extron electronic MLS 304SA, MLS 304MA Speakers Tapped at 7.5 Watts Each Equals 15 Watts Total

Installation, cont’d

Wiring for a 70 volt or 100 volt distributed speaker system (MA models)

CThe speaker taps should not exceed the amplifier’s maximum power output.

NThe maximum power output when the MLS is wired for 70 volt or 100 volt systems is 16 watts.

1.Flip the toggle switch up to select a distributed 70 V or 100 V system connection.

2. Use the appropriate wiring for the load as shown in the following illustrations.

70V

AMPLIFIED OUTPUT 20 WATTS MONO

XFMR

4/8 ohm COM 70V 100V

DIRECT

Common

Com. 3.7 W

Com. 3.7 W

Com. 3.7 W

Com. 3.7 W

70V Speakers

4 Speakers Tapped at 3.7 Watts Each Equals 14.8 Watts Total

100V

AMPLIFIED OUTPUT 20 WATTS MONO

XFMR

4/8 ohm COM 70V 100V

DIRECT

Common

Com. 3.7 W

Com. 3.7 W

Com. 3.7 W

Com. 3.7 W

100V Speakers

PRELIMINARY

4 Speakers Tapped at 3.7 Watts Each Equals 14.8 Watts Total

70V

AMPLIFIED OUTPUT 20 WATTS MONO

XFMR

4/8 ohm COM 70V 100V

DIRECT

Common

Com. 7.5 W

Com. 7.5 W

70V Speakers

2 Speakers Tapped at 7.5 Watts Each Equals 15 Watts Total

CDo not short the terminals to ground or the amplifier will be damaged. C Do not bridge mono outputs. Bridging could damage the amplifier.

2-12 MLS 304 Series, MLS 406 Series • Installation