Specifications subject to change. | ©2021 Procella Audio Svenska AB, Procella Audio USA, LLC. All rights reserved. | V1.0 2021/08 4
Introduction and Overview
1. Introduction
The Procella DA4280 power amplifier has been designed to provide
configurable, consistent and reliable high performance audio
power amplification. Please read this installation and operation
manual fully before installing and using the amplifier. If you have
any questions regarding amplifier configuration, installation or
operation please contact the customer support department
at:[email protected]
Following this introduction, the manual is divided into sections
covering the following topics:
Overview
Carton Contents
Configuration
Installation
Connections
Operation
Maintenance
Frequently Asked Questions
2. Amplifier Overview
The
Procella DA4280
is a 1U rack format, four channel audio power
amplifier that can drive both conventional low impedance (4Ω to
16Ω, - Low-Z) loudspeaker loads and constant voltage (70V/100V -
Hi-Z) transformer coupled loudspeaker loads. Each Procella DA4280
is preset at the factory for operation with 4 to 16 ohm loads. The
Procella DA4280 is capable of a maximum output of 280 Watts per
channel.
The Procella DA4280 amplifier channel gain control knobs and
status indicators are located on the front panel. Signal input and
output connections are accomplished via ‘Euro Block’ connectors
and operational configurations are set up through a DIP switch
module located on the amplifier rear panel. A rear panel GPIO
(General Purpose In/Out) connector is also provided that enables
some amplifier functions to be controlled or monitored remotely,
including standby mode. The Procella DA4280 amplifier has no
mains power switch and are operational as soon as mains power is
connected. The Procella DA4280 amplifier should be connected to
switched mains sockets.
Amplifier dimensions and features are illustrated in
Diagram 1.
The
Procella DA4280 amplifier is primarily intended for installation in
an equipment rack but can also be under-desk or wall mounted, or
used free standing. It is fan-cooled and must be installed such that
ventilation apertures are not obstructed.
3. Carton Contents
The Procella DA4280 amplifier are shipped in a cardboard carton
containing the amplifier unit, a mains cable appropriate for the
sales territory, an accessory pack, and a document pack. The full
contents is listed below.
•
Procella DA4280 amplifier unit
•
Mains power cable
•
4x XLR to Euroblock cables
•
Input connector x 4
•
GPIO socket connector
•
Output connector x 4
•
Adhesive rubber feet x 4
•
Document pack
Optional accessories
•
Pair of Rear Support Brackets
292 mm
11.5 in
440 mm
17.3 in
44 mm
1.7 in
80 mm
3.1 in
25 mm
1 in
Diagram 1
The Procella DA4280 dimensions.
Shaded area defines ventilation space.
