Table of Contents
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1. Introduction
UXA4403 power amplifiers have been designed to provide
configurable, consistent and reliable high performance
audio power amplification for residential, commercial and
entertainment applications.
This manual covers the features, installation and functions
of the UXA4403. Please read the manual fully before
installing and using an amplifier. If you have any questions
regarding amplifier configuration, installation or operation
please contact the appropriate customer support portal.
Following this introduction, the manual is divided into sections
covering the following topics:
• 2. Overview
• 3. Carton Contents
• 4. Installation
• 5. Configuration
• 6. Connections
• 7. Operation
• 8. Specifications
Introduction and Overview
2. Amplifier Overview
UXA4403 amplifiers are a full rack width, 2U format power
amplifiers that can drive both conventional low impedance (Lo-Z,
4Ω to 16Ω) loudspeakers and high impedance (Hi-Z, 70V/100V)
transformer coupled loudspeakers. They provide four analog
inputs, one stereo S/PDIF digital input, and either two or four
outputs (Lo-Z mode), or one or two outputs (Hi-Z or Lo-Z BTL
mode). UXA4403 amplifier model output channel counts and
power outputs are as follows:
[Mode
Channels
Lo-Z
Four
Lo-Z (BTL)
Two
Hi-Z
Two
Note: In Lo-Z BTL (bridge-tied load) mode, two amplifier output
channels are combined to create a single, double power output
channel. BTL mode can be engaged via the amplifier Output
Mode configuration setup menu described in Section 5 of this
manual.
Max Rated Output per Channel
750 Watts
1500 Watts
1500 Watts
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