Meridian Power Amplifier G Series Installation Manual
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- Installation manual (67 pages) ,
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Table of Contents
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Summary of Contents for Meridian Power Amplifier G Series
- Page 1 G Series Power Amplifier Installation Guide...
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Page 2: Important Safety Instructions
Important safety instructions P r e f a c e • Read the instructions. • Keep these instructions. • Follow all instructions. • Do not use this apparatus near water. • Clean only with a dry cloth. • Install only in accordance with the manufacturer’s instructions. •... -
Page 3: Table Of Contents
Contents Introduction Provides information about the power amplifier models, a description of each product, and technical specifications. Power amplifier models Specifications Installing the power amplifier Describes how to install the power amplifier and connect it to the other equipment in the system. Unpacking Inputs Outputs... - Page 4 World Wide Web – http://www.meridian-audio.com/ Copyright © 2003-2005 Meridian Audio Ltd Designed and manufactured in the UK by Meridian Audio Ltd. Meridian Audio reserves the right to make changes and improvements to any of the products described in this document without prior notice.
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Page 5: Introduction
Introduction This guide provides full information about unpacking the power amplifier, and connecting it to the other equipment in the system. Power amplifier models This Installation Guide applies to the G55 Five-channel Power Amplifier, G56 Two-channel Power Amplifier, and G57 Two-channel Power Amplifier. -
Page 6: General Features
I n t r o d u c t i o n General features Each of the G Series power amplifiers is based on modules that feature a symmetrical design with fully electronically-balanced inputs. Both balanced and unbalanced inputs are provided, but in fact the unbalanced inputs are converted to balanced before they enter the amplifier itself, using Meridian’s proprietary ‘superbal’... - Page 7 I n t r o d u c t i o n G55 Five-channel Power Amplifier The Meridian G55 is a five-channel unit, and delivers a solid 100W RMS per channel continuous into 8Ω. The outer pairs of channels can be operated in bridge mode by actuating a back-panel rocker switch on the channel 1 and/or channel 5 modules, in which case the first channel input of the pair becomes the bridged input and the upper output terminals are...
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Page 8: Specifications
Specifications I n t r o d u c t i o n Distortion Less than 0.01%. Signal/Noise Better than -100dB. Inputs Balanced on XLR and unbalanced on phono. Sensitivity 1.0V RMS phono/per leg balanced. Input 16kΩ phono, 32kΩ balanced. impedance Outputs Twin outputs for bi-wiring. -
Page 9: Installing The Power Amplifier
Installing the power amplifier This chapter explains how to install the power amplifier. It describes what you should find when you unpack the product, and how you should connect it to the other equipment in the You should not make any connections to the product or to any other component in the system while the AC power supply is connected and switched on. -
Page 10: Inputs
I n s t a l l i n g t h e p o w e r Inputs a m p l i f i e r G55 Five-channel Power Amplifier ������ ������ ���� ������� � �������� ������ ������� � �� ������� � Use this input UNBALANCED BALANCED... - Page 11 To connect the G55 to an unbalanced preamplifier (eg G01 Control Unit) G01 Control Unit PRE OUT • Switch the BRIDGE MODE switch for channels 1/2 to the OFF position. • Connect the UNBALANCED sockets on the power amplifier to the outputs from the preamplifier.
- Page 12 I n s t a l l i n g t h e p o w e r a m p l i f i e r To connect the G55 to a G68AXV Digital Surround Controller • Switch the two BRIDGE MODE switches to the OFF position. •...
- Page 13 G56 Two-channel Power Amplifier ����� ���������� ����� ��� � ����� � ������ ����� ���������� �������� ������� ����� ������ � �� ��� ���� �� ���� ����������� ����� ������ ����� ����� �������� ����� �������� ����� Use this input To connect to this UNBALANCED A preamplifier, using phono connectors and high-quality screened cable.
- Page 14 I n s t a l l i n g t h e p o w e r a m p l i f i e r G57 Two-channel Power Amplifier ����� ���������� ����� ��� ��� ������� ����� ��������� �������� ��� ���� �� �������...
- Page 15 To connect to an unbalanced preamplifier (eg G01 Control Unit) G01 Control Unit PRE OUT • Switch the BRIDGE MODE switch to the OFF position. • Connect the UNBALANCED sockets on the power amplifier to the outputs from the preamplifier. •...
- Page 16 I n s t a l l i n g t h e p o w e r a m p l i f i e r To connect to each channel of a G68AXV or G68XXV Digital Surround Controller Three G56 or G57 Two-channel Power Amplifiers can be used in bridge mode for each of the front channels of a G68AXV or G68XXV Digital Surround Controller, which are provided as...
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Page 17: Outputs
Outputs G55 Five-channel Power Amplifier ������ ���� ����� ��� �������� � � � ������ ������ ���� ��� �������� � � � ������� � ������ ������ ���� ������� � ��� �� ��� ���������� ���������� �������� �������� ���� ��� ������ ���� ������ ���� �� ��������... - Page 18 I n s t a l l i n g t h e p o w e r a m p l i f i e r To connect to passive loudspeakers • Set the BRIDGE MODE switches to the OFF position. To bi-wire to passive loudspeakers •...
- Page 19 To wire to passive loudspeakers in bridge mode Loudspeaker Treble Bass/mid INPUT You can wire channels 1/2 and 4/5 in bridge output mode, to obtain more than twice the power output. • Switch the BRIDGE MODE switches to the ON position. •...
- Page 20 I n s t a l l i n g t h e p o w e r a m p l i f i e r To bi-amp to two passive loudspeakers INPUT Extremely high sound quality can be achieved using two separate channels of the power amplifier to drive the LF and HF units in each loudspeaker.
- Page 21 To connect two G55s to a seven-channel surround system G55 Five-channel Power Amplifier Main right input Main right Side right Main left Two G55 Five-channel Power Amplifiers can be used as the basis of a superb seven-channel surround system, taking advantage of bridge mode operation to give more than twice the power output for the three front channels.
- Page 22 I n s t a l l i n g t h e p o w e r a m p l i f i e r G56 Two-channel Power Amplifier ���������� ������� ����� ������ � �� ��� ���� �� ���� ����������� ����� ������ Use this output LEFT, RIGHT FAN OUTPUT...
- Page 23 G57 Two-channel Power Amplifier ����� ������ ��� ���� ��� ��� ������� ����� ��������� ����� ����� �������� ��� ���� �� ������� �� �������� ����� ��� ������� ������ ������ ��� ��������� ���� ������ ������ ���������� �������� ������� ����� ������ �� ��� ���� ��...
- Page 24 I n s t a l l i n g t h e p o w e r a m p l i f i e r To connect to passive loudspeakers • Set the BRIDGE MODE switch to the OFF position. To bi-wire to passive loudspeakers •...
- Page 25 To wire to a passive loudspeaker in bridge mode Loudspeaker Treble Bass/mid You can use the G56/G57 as a mono power amplifier, to obtain more than twice the power output, by wiring it in bridge mode. • Switch the BRIDGE MODE switch to the ON position. •...
- Page 26 I n s t a l l i n g t h e p o w e r a m p l i f i e r To bi-amp to two passive loudspeakers ����������� ������ �������� Extremely high sound quality can be achieved using two separate G56/G57 Two-channel Power Amplifiers, one to drive each loudspeaker.
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Page 27: Troubleshooting
Troubleshooting We expect you to achieve superb results with the power amplifier. If, however, you encounter any problems, either when installing it, or during operation, please check the following pages If these suggestions fail to cure the problem, please contact your Meridian dealer for further No front-panel indicator is shown •... -
Page 28: Maintenance
Maintenance Tr o u b l e s h o o t i n g Cleaning To clean the case • Disconnect the power cord before cleaning the unit. The exterior surfaces of Meridian G Series products are made from solid anodised aluminium, powder coated steel, thermoplastic rubber, and glass. -
Page 29: Service And Guarantee
The guarantee is void if the product has been subject to misuse, accident, or negligence, or has been tampered with or modified in any way without the written authorisation of Meridian Audio Limited. Attempted servicing by unauthorised people may also invalidate this guarantee. - Page 30 Tr o u b l e s h o o t i n g...
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Page 31: Index
accessories 5 balanced preamplifier, connecting to G55 7 G56 or G57 11 bi-amping G55 16 G56 or G57 22 bi-wiring G55 14 G56 or G57 20 bridge mode G55 15 G56 or G57 21 cleaning 24 connections, cleaning 24 fan control output 13, 18, 19 G55 Five-channel Power Amplifier 1 bi-amping 16 bi-wiring 14... - Page 32 I n d e x loudspeakers, connecting to G55 14-16 G56 or G57 20-22 mains fuse, changing 24 models 1 outputs 13 preamplifier, connecting to 11 safety warnings ii seven-channel surround system, connecting to 17 specifications 4 standby 5 stereo preamplifier, connecting to 11 trigger input 5, 9, 10 troubleshooting 23 unbalanced preamplifier, connecting to 7...