D-Link PM0599-03 owner manual Sound System Setup, Introduction

COPYRIGHT © 2006 MERIT INDUSTRIES, INC.

Section 4: Sound System Setup

INTRODUCTION

See Section 2 if you have any questions about setting up the Network, or consult the included “MoD BoX User Manual” for questions about jukebox operation.

Extension Speaker Operation

To avoid a poor-sounding jukebox, care must be taken when adding extension speakers. Two requirements must be met:

1.Speakers must be wired so that the power consumed does not exceed the ampli- fier power rating.

2.All speakers must be connected with the correct polarity.

70-Volt Speakers

To avoid prohibitive cable losses on long speaker lines (over 100 feet), use 70 V speakers. This can only be done if you add the Output Transformer (standard in the Deluxe model, or available as a kit, part number KOV-106-000-05). The power level in the 70 V speakers is set at each speaker. 250 watts is provided for 70 V speakers by A1, A2 connections on the audio output transformer assembly.

The power level in the 70 V speakers is set at each speaker. 250 watts is provided for 70 V speakers by A1, A2 connections on the audio output transformer assembly.

Low Impedance Speakers

Low impedance speakers (8-ohm or higher) can be used when the connecting cable is less than 100 feet.

8-Ohm Speakers (Parallel Connections)

No more than one 8-ohm speaker should be connected to a speaker line. If several 16-ohm speakers are to be used, each speaker should have its own line. The loss in 100 feet of 18 gauge zipcord feeding an 8-ohm speaker is 15%.

SOUND SYSTEM SETUP

Acoustical Compensation (Equalizer Tone Controls)

The preamplifier contains seven tone controls on each channel to compensate for room acoustics in various locations. These controls are on the amplifier chassis. The sound level at which the jukebox will be operated and the room furnishings determine the settings of these controls.

PM0599-03 MOD BOX INSTALLATION & OWNER’S MANUAL 32