Cambridge Audio EDGE M User manual

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EDGE M
Manual Generated: 02/11/2023 - 13:26

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Table of Contents
EDGE M 3 ........................................................................................................................................................................................................................
Introduction 4 ................................................................................................................................................................................................................
What’s included with the EDGE M? 5 .........................................................................................................................................................................
Front panel 6 .................................................................................................................................................................................................................
Rear panel connections 7 ............................................................................................................................................................................................
Getting connected 9 .....................................................................................................................................................................................................
Power syncing 12 ..........................................................................................................................................................................................................
Protection circuitry 13 ..................................................................................................................................................................................................
Troubleshooting 14 .......................................................................................................................................................................................................
Technical specifications 15 ..........................................................................................................................................................................................
Frequently Asked Questions (FAQ) 16 .......................................................................................................................................................................

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EDGE M
Last updated: August 9, 2022 05:03. Revision #10024
Users Manual

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Introduction
Last updated: August 9, 2022 05:03. Revision #10033
This guide is designed to make installing and using this product as easy as possible. Information in this document has been carefully checked for
accuracy at the time of printing; however, Cambridge Audio’s policy is one of continuous improvement, therefore design and specifications are
subject to change without prior notice.
This document contains proprietary information protected by copyright. All rights reserved. No part of this manual may be reproduced by any
mechanical, electronic or other means, in any form, without prior written permission of the manufacturer. All trademarks and registered trademarks
are the property of their respective owners.
© Copyright Cambridge Audio Ltd 2022.
For upcoming news on future products, software updates and exclusive offers, make sure you register your product
at https://www.cambridgeaudio.com/register

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What’s included with the EDGE M?
Last updated: August 9, 2022 05:03. Revision #10032
Inside the box of your EDGE M you will receive:
EDGE M Monoblock Power Amplifier1.
UK power cord (Depending on which country the EDGE M was purchased in)2.
EU power cord (Depending on which country the EDGE M was purchased in)
CU power cord (Depending on which country the EDGE M was purchased in)
JP power cord (Depending on which country the EDGE M was purchased in)
Link Cable3.
Instruction Manual4.
Warranty Card5.
Welcome Letter6.
Unboxing Card 7.

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Front panel
Last updated: August 9, 2022 05:03. Revision #10031
1. STANDBY/ON - Switches the unit between Standby mode (indicated by dim LED) and On (indicated by bright LED). Standby mode is a low
power mode where the power consumption is less than 0.5 Watts.
AUTO POWER DOWN (APD)
The product will automatically switch to standby mode after inactivity of 20 minutes. To enable or disable this function, use the APD switch located
on the rear of the unit.
AUTO POWER UP (APU)
This product will automatically switch back on if it detects audio signal and will resume normal function. Auto Power Up will only work after the
product has Auto Powered Down on the same input.

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Rear panel connections
Last updated: August 9, 2022 05:03. Revision #10030
1. VOLTAGE SELECTOR SWITCH
Note: For use by Cambridge Audio service personnel only!
2. AC POWER SOCKET
3. BALANCED/UNBALANCED INPUTS - The XLR input is balanced and the RCA input is unbalanced.
4. BALANCED/UNBALANCED SWITCH - Select depending on whether a source is connected to the balanced XLR or unbalanced RCA input.
Note: There will be no sound from the amp if the correct input isn’t selected. If a source is connected to the balanced input, for example, ensure
that the balanced switch has been selected.
5. LOOP OUT - The XLR output is balanced and the RCA output is unbalanced.
6. SPEAKER TERMINALS
Note: When using a banana plug, make sure the speaker terminals are completely tightened before inserting the plug.

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Connect the wires from your left channel loudspeaker to the left positive and negative terminals and the wires from the right channel loudspeaker
to the right positive and negative terminals.
In each case, the red terminal is the positive output and the black terminal is the negative output.
Care should be taken to ensure no stray strands of wire short the speaker outputs together. Please ensure that the loudspeaker terminals have
been tightened completely to provide a good electrical connection.
It is possible for the sound quality to be affected if the screw terminals are loose.
7. AUTO POWER DOWN (APD) SWITCH - Switches to enable or disable the Auto Power Down function. When enabled, the amplifier will
automatically switch to standby mode after inactivity of 20 minutes.
8. LINK - Refer to the 'Power syncing' section of this manual for more information.

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Getting connected
Last updated: August 9, 2022 05:03. Revision #10029
LOUDSPEAKERS
Check the impedance of your speakers. You can use types with an impedance of between 4 and 8 Ohms.
The red coloured speaker terminals are positive (+) and the black speaker terminals are negative (-). Make sure the correct polarity is maintained at
each speaker connector or the sound can become weak and “phasey” with little bass.
USING BARE WIRE CONNECTIONS
Prepare the speaker cords for connection by stripping off approximately 10mm (3/8”) or less of the outer insulation. More than 10mm could cause a
short circuit. Twist the wires tightly together so there are no loose ends. Unscrew the speaker terminal, insert the speaker cable, tighten the
terminal and secure the cable.
Note: All connections are made using standard loudspeaker cable.
USING BANANA PLUGS
We recommend using Banana plugs with our units to establish a secure connection and ensure there are no loose strands of wire that may cause
unwanted noise or interference.
Once you have stripped the outer insulation of the cable and twisted the wires as indicated below, securely connect these to your banana plugs and
push the plug in as far as possible without applying excessive force.
Note: When using a banana plug, make sure the speaker terminals are completely tightened before inserting the plug.

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BASIC CONNECTIONS
Balanced stereo connections:
The diagram below shows a basic balanced stereo connection between two EDGE M amplifiers and the EDGE NQ. In this stereo connection each
Edge M drives one speaker.
The Balanced/Unbalanced switch on the Edge M must be switched to the ‘Balanced’ position.
Unbalanced stereo connections:
The diagram below shows a basic unbalanced stereo connection between two EDGE M amplifiers and the EDGE NQ. In this stereo connection each
Edge M drives one speaker.
The Balanced/Unbalanced switch on the Edge M must be switched to the ‘Unbalanced’ position.