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Indicators 

Blue LED power indicator 

 

Per-channel blue LED 

operation indicator

Power 

100–240Vac, 30–1200VA

Dimensions 

Main enclosure 

435 x 82 x 250 mm (17.25 x 

3.25 x 9.75 in) W x H x D

Front panel 

485 x 87.5 x 12 mm (19 x 

3.45 x 0.5 in) W x H x D

Weight 

TBC kg (xx lb)

Crossover cards 

Cards are supplied with each active installation 
loudspeaker system. These feature premium 
quality Burr-Brown operational amplifiers and 
four-layer printed circuit boards. LEDs indicate 
presence of rail voltages while the colour 
combinations confirm the type of crossover 
in place. Cards plug into sockets on the front 
panel of the C51.

Meridian Audio reserves the right to amend 
product specifications at any time.

InStALLAtIon And SetUP 

Unpacking 

•  Inspect product box and unit for any shipping 

damage. 

•  Save product box in the event the unit needs to 

be shipped in the future. Shipping the unit in a 

generic box may void warranty. 

Mounting 

The C51 is primarily designed to be mounted 
in a standard 19in rack. Feet are provided for 
free-standing operation: these should not be 
present if the unit is to be rack-mounted.

•  EXCESSIVE HEAT MAY CAUSE THE UNIT TO 

MALFUNCTION OR SHORTEN PRODUCT LIFE. 

Follow regular installation rules for proper 

ventilation. 

•  Be sure rack location has adequate ventilation. 

Allow a minimum of 1U rack space (1.75in) 

above and below unit for ventilation. 

•  Allow additional ventilation when mounted 

near other power amplifiers or other equipment 

that may generate excessive heat.

Connections 

Be sure to use high quality cables for both 
sources and output signals. 

AC Power Connector

Connect to a stable AC power line. Ensure 
that the unit is connected to a supply of the 
voltage specified on the unit and that the unit 
is of the correct type for the territory in which 
it is being installed.

•  To avoid ground loops, a power conditioner for 

the equipment rack is recommended. 

•  Static electricity can cause equipment problems. 

Be sure installer is grounded to chassis or 
equipment rack before connecting sources. 

Summary of Contents for C51

Page 1: ... Please review this manual carefully before contacting Technical Support PRODUCT OWNERS Please contact your authorised Meridian dealer for product or installation questions Meridian C Series Installation Components C51 5ch x 2 bass treble Active Speaker Power Unit Installation and Operation Manual ...

Page 2: ...This page intentionally left blank ...

Page 3: ... review the instructions in the following pages of this manual to help insure a smooth installation and a happy customer Copyright 2007 Meridian Audio Limited No part of this document may be copied photocopied translated or reproduced to any electronic medium or machine readable form without prior consent in writing from Meridian Specifications subject to change without notice All Rights Reserved ...

Page 4: ...arnings Do not expose the unit to dripping or splashing Do not place any object filled with liquid such as a vase on the unit Do not place naked flame sources such as lighted candles on the unit To avoid interference Do not position the unit Near strong magnetic radiation Near to a television or where connecting cables may be subject to or cause interference To avoid overheating Leave at least 10c...

Page 5: ...n If you wish to dispose of this product please do so in accordance with applicable national legislation or other rules in your country for the treatment of old electrical and electronic equipment Accessory Kit The following items are supplied with C51 Powered Crossover Amplifier unit 1 This manual 1 Power Cord Service and guarantee Service The Meridian components have been carefully designed to g...

Page 6: ...rotection circuitry is included The C51 has soft start fan output and trigger input The front panel includes five sockets for installation of the crossover cards which can be accessed by unscrewing the transparent smoked access cover Front panel indicators take the form of blue LEDs for main power and for each channel arranged in high low pairs so that the status can be instantly assessed The rear...

Page 7: ...d warranty Mounting The C51 is primarily designed to be mounted in a standard 19in rack Feet are provided for free standing operation these should not be present if the unit is to be rack mounted EXCESSIVE HEAT MAY CAUSE THE UNIT TO MALFUNCTION OR SHORTEN PRODUCT LIFE Follow regular installation rules for proper ventilation Be sure rack location has adequate ventilation Allow a minimum of 1U rack ...

Page 8: ...bles for each speaker connected to the BASS and and the TWEETER and terminals Plug the crossover module supplied with each Active Installation Loudspeaker into the appropriate crossover bay on the front panel of the C51 and re fit the acrylic cover Ensure that the card is correctlly seated and that the correct card for the speaker is in the appropriate slot Each crossover card includes indicator l...

Page 9: ...ot illuminated a fault condition is indicated A further blue LED is situated next to the Standby button and illuminates when the unit is in standby indicating that the unit is powered When this light is illuminated the channel indicators should be extinguished A blue LED indicates when the unit has been shut down as a result of overheating In an overtemperature situation the entire unit will enter...

Page 10: ...nits move when the C51 is switched on or off This is normal as the amplifier electronics settle The sound from one or more speakers is either muffled lacking in HF or thin lacking in bass Check that the crossover cards have been correctly inserted and in particular that the type of crossover card in each bay matches the type of loudspeaker connected to the corresponding output channel Each crossov...

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