Features Overview; Installation - Viking PP-250 Product Manual

250 watt / 70v paging power amplifier

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IMPORTANT: Electronic devices are susceptible to lightning and power station electrical surges. It is recommended that

a surge protector be installed to protect against such surges.

VIKING

INPUT LEVEL: Input Level volume control and LED showing both activity and audio level

BASS: Low frequency tone control

TREBLE: High frequency tone control

VOLUME: Volume control and LED level indicator for setting Peak Limiting

POWER: LED indicating power is on (winks off to indicate an overload condition)

VIKING

250 WATT PAGING POWER AMPLIFIER

LINE INPUT

Analog line level input

Analog ground

A. Speakers

Step 1

Connect 70V speakers across the 70V SPEAKERS terminals (pins 4 & 7).

If using 25V speakers, connect half of them across the 25V SPEAKERS terminals (pins 4 & 5), and the other half

Step 2

across the 25V SPEAKERS terminals (pins 6 & 7), so that the power load is balanced between the two outputs.

Check the power tap of each speaker connected, and be sure the sum of all the speakers connected does not exceed

250 Watts. For example, if there are 40 speakers, all wired to their 5 Watt taps, the amplifier is driving a 200 Watt

Step 3

load. Since the PP-250 is capable of driving a 250 Watt load, additional speakers could be added, or some of the

existing speakers could be tapped at a higher wattage setting to play louder. If the total speaker load goes "over

budget" (greater than 250 Watt load), remove some speakers, or use lower power taps to get to a 250 Watt load.

Back Panel

NOTE: For wire run lengths up to 500 feet, use #18 gauge or larger speaker cables. For wire run lengths up to 1000 feet, use #16

gauge or larger speaker cables. For wire run lengths up to 1500 feet, use #14 gauge or larger speaker cables, etc.