Cloud CXA21K Quick Start Manual

Carton Contents

• Amplifier unit
• Rack mount ears (fitted) x 2
• Mains power cable
• Input connector x 2

Connection Sockets

Configurable
Network
Control GPIO

Installation Notes

• The amplifier must be switched on before use via its front panel
Standby button. Do not switch on until all required signal and
control connections are made.
• High or low impedance speaker connection options can be selected
independently for each output channel via the configuration web
app
• Analogue input sensitivity can be adjusted independently for each
channel via the configuration web app.

Wireless Network Control Connection

A mobile, laptop or desktop device with WiFi functionality and a
web browser is required.
Follow the steps below.
1. Connect the [Amp Name] amplifier to mains power using the
supplied mains cable and switch it on via the front panel Standby
switch. Wait for the front panel WiFi indicator to illuminate green.
2. Use a mobile, laptop or desktop device to search for available WiFi
networks. Connect to, '[Amp Name] (product serial number)' using the
password, 'password'. The amplifier serial number can be found on its
rear panel.
3. Open a mobile, laptop or desktop device web browser and enter
the following IP address: 192.168.4.1. The amplifier configuration
web interface page will open in the browser app to enable amplifier
configuration as required.
It is strongly recommended that the amplifier WiFi password is
changed following initial wireless connection.
QUICK START GUIDE
CXA SERIES DIGITAL AMPLIFIERS
MODELS: CXA21K & CXA215K
• Output connector x 1 or 2
• Adhesive rubber feet x 4
• Document pack
• GPIO socket connector
S/PDIF Audio I/O
Support
• A full user manual that includes information on installation,
mounting accessories and amplifier operation is available online.
Go too: www.cloud.co.uk
Audio Inputs
Balanced: Euroblock
Unbalanced: RCA Phono.
Configurable Speaker
Outputs
• Audio I/O routing can be configured via the configuration web app.
• GPIO (General Purpose Input/Output) options can be configured via
the configuration web app.
• Ensure that rack or other confined installation does not restrict
the front to rear airflow required for safe and reliable operation of
the amplifier. It is important that the 40°C maximum operating
temperature for the amplifier is not exceeded.

Wired Network Control Connection

A laptop or desktop device with Ethernet functionality, a web
browser and a network scanning app is required.
Follow the steps below.
1. Connect the [Amp Name] amplifier Network Control socket directly
to a laptop or desktop device - or through a switch.
2. Connect the [Amp Name] amplifier to mains power using the
supplied mains cable and and switch it on via the front panel Standby
switch. Wait for the front panel Network indicator to illuminate green
to indicate that the amplifier has network connectivity.
3. The default LAN IP address of the amplifier is 192.168.64.100.
Configure your laptop or desktop device to a fixed IP address in the
same IP range, ex. 192.168.64.10, with Subnet mask 255.255.255.0 (or
prefix 24) and set Gateway to 192.168.64.1.
4. Open a laptop or desktop device web browser and enter the
address http://192.168.64.100/ - The amplifier configuration web page
interface will open to enable amplifier configuration as required.
Mains
Power Input