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Meridian 558 Multi Channel Power Amplifier
user guide
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Preface Meridian 558 Multi Channel Power Amplifier User Guide i
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Sales and service in the UK Meridian Audio Ltd Stonehill Stukeley Meadows Sales and service in the USA Cambs PE18 6ED Meridian America Inc Designed and England 3800 Camp Creek Parkway manufactured in the UK by Building 2400 Tel␣ ␣ (01480) 52144 Suite 122 Digital Gramophone and Wireless Ltd Fax␣ ␣ (01480) 459934 Atlanta Stonehill GA 30331 Stukeley Meadows World Wide Web Cambs http://www.meridian-audio.com Tel (404) 344 7111 PE18 6ED Fax (404) 346 7111 England Copyright © 1993–2000 Digital Gramoph
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Preface Contents Introduction 1 Introduces the 558 Multi Channel Power Amplifier, and provides an overview of the Setting up the multi other products available in the Meridian channel power amplifier 5 500 Series. Describes how to unpack, install, and use The Meridian 500 Series ........................ 2 the multi channel power amplifier, and Troubleshooting 15 Sample configurations ........................... 3 explains what you should do if it requires Specification and accessories ..........
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iv Preface
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Introduction Introduction The 558 Multi Channel Power Amplifier provides five discrete power amplifiers in a single enclosure, and is ideal for multi-channel surround systems. Two pairs of channels can also be operated in bridge mode, for over twice the power output. The 558 Multi Channel Power Amplifier uses a unique feedback topology and precision local error correction system. It includes two massive twin wound toroidal transformers, and the unit has full thermal, load, and DC protection on e
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The Meridian 500 Series The Meridian 500 Series is a unique system of digital, analogue, 500 Series communications and video components designed to meet the demand for absolute quality, ease of use, and lasting value. The Meridian 500 Series includes a sophisticated communications link, to ensure that any configuration of units The flexibility of the Meridian 500 Series is such that you can will work together as a fully integrated system. assemble a system as simple or as complex as you need, pe
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Introduction Sample configuration 558 Multi Channel Power Amplifier A500 A500 A500 A500 A500 Meridian DVD Player 558 568/561 The 558 Multi Channel Power Amplifier is ideal for use with the outputs from the front left, right, and centre channels, and so is Meridian 561 Digital Surround Controller or the 568 Digital ideal for use with the balanced inputs of the 558 Multi Channel Surround Processor, to drive five analogue loudspeakers in a Power Amplifier. 3 high-quality surround system. The 568 pr
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Specification and accessories Specification Available accessories Input 1.4V RMS. The following accessories are available from your dealer: Output (bridged Greater than 200W per channel into 8W . m Power cord Europe. mode off) Greater than 300W per channel into 4W . m Power cord Canada and USA. Output (bridged Greater than 400W into 8W . mode on) Greater than 600W into 4W . Rack mount kit Distortion Less than 0.05%. The Meridian 500 Shelf is a tray produced by Middle Atlantic Noise Less than -90
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Setting up the multi channel power amplifier Setting up the multi channel power amplifier This chapter explains how to install the multi channel power amplifier. It describes what you should find when you unpack the multi channel power amplifier, how you should connect it to your other audio equipment, and the siting constraints. You should not make any connections to the multi channel power amplifier or to any other component in your system whilst the AC power supply is connected and switched o
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Unpacking The 558 Multi Channel Power Amplifier comes in a box To position the multi channel power containing the following components: amplifier m 558 Multi Channel Power Amplifier. During normal operation the internal heatsinks may become m 1 power cord. quite hot. The multi channel power amplifier should therefore be m 2 bridged mode links. positioned to allow a free flow of air through the cooling vents m This manual. from the base to the top. You are advised to retain the packing in case yo
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Setting up the multi channel power amplifier Connecting the multi channel power amplifier Back panel Select balanced/ Select bridged mode Balanced Unbalanced Select bridged mode Power unbalanced input for channels 4/5 inputs inputs for channels 1/2 and fuse ON OFF INPUT SELECTOR INPUT SELECTOR INPUT SELECTOR INPUT SELECTOR INPUT SELECTOR BALANCED BALANCED BALANCED BALANCED BALANCED ON ON BRIDGED MODE BRIDGED MODE UNBALANCED UNBALANCED UNBALANCED UNBALANCED UNBALANCED OFF OFF BALANCED BALANCED BA
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Outputs connections to the bass/mid and tweeter units this allows the units to be connected independently to the multi channel power The following table gives details of the output connections: amplifier, for optimum sound quality. Use this output To connect to this Alternatively, for loudspeakers providing a single pair of inputs, either of the output terminals can be used. CHANNEL 1 to Loudspeakers of 4W to 15W , using CHANNEL 5 either plug or bare wire connections. Inputs The recommended assi
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Setting up the multi channel power amplifier Standby Once set up, the multi channel power amplifier can be left in standby as it consumes negligible power in this mode. To bring the amplifier out of standby press the button on the front panel. Alternatively, the 558 can be brought out of standby automatically using the TRIGGER INPUT; see below. If you are not going to use the multi channel power amplifier for a period of several days you should switch the unit completely off, at the back panel,
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Connecting a source To connect to an analogue To connect to a 568 Digital Surround preamplifier (eg Meridian 501/501V) Processor 558 Multi Channel Power Amplifier 558 Multi Channel Power Amplifier OFF OFF OFF 501/501V Control Unit 568 Digital Surround Processor REAR-L RIGHT C LEFT OUTPUT REAR-R l Switch the BRIDGED MODE switch for channels 1/2 to the l Switch the two BRIDGED MODE switches to the OFF OFF position. position. l Connect the sockets marked UNBALANCED on the back l Connect the LEFT, R
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Setting up the multi channel power amplifier Connecting speakers To connect to A500 Loudspeakers To bi-wire to A500 Loudspeakers A500 Loudspeaker A500 Loudspeaker A500 Loudspeaker A500 Loudspeaker 558 Multi Channel Power Amplifier 558 Multi Channel Power Amplifier OFF OFF OFF OFF l Set the BRIDGED MODE switches to the OFF position. l Set the BRIDGED MODE switches to the OFF position. l Connect one of each pair of the red and black terminals from l If necessary, remove the links bridging the LF a
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To wire to A500 Loudspeakers in l Connect the supplied bridged mode links between the black bridged mode (-) CHANNEL 1/2 and CHANNEL 4/5 terminals, as marked on the back panel. A500 Loudspeaker A500 Loudspeaker l Connect the loudspeakers between one pair of the red (+) CHANNEL 1/2 and CHANNEL 4/5 terminals. You can bi-wire in bridged mode by using the other pair of red terminals to connect separately to the loudspeaker treble unit. 558 Multi Channel Power Amplifier ON ON Input Input You can wire
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Setting up the multi channel power amplifier To bi-amp to two A500 Loudspeakers l If necessary, remove the links bridging the LF and HF terminals on the back of each loudspeaker. A500 Loudspeaker A500 Loudspeaker l Connect the red and black terminals from the LF and HF units on the left loudspeaker to the red and black terminals on channels 1 and 2. l Likewise, connect the LF and HF units from the right loudspeaker to channels 4 and 5. 558 Multi Channel Power Amplifier OFF OFF Input Input Extrem
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To connect two 558s to a l Switch channels 1/2 of the second 558 to bridged mode, and seven-channel surround system use these for the centre loudspeaker. l Use the remaining channels for the side and rear 2 x 558 Multi Channel Power Amplifiers loudspeakers, as shown in the diagram. ON ON Side right Main left Main right Main left Main right Side right ON OFF Rear right Side left Rear left Centre Centre Rear Rear Side left right left Two 558 Multi Channel Power Amplifiers can be used as the basis
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Troubleshooting Troubleshooting This chapter provides suggested solutions to typical problems that may occur when setting up or using the multi channel power amplifier. If you are still not able to resolve a difficulty with the help of this guide and the suggestions in the following pages, please contact your Meridian dealer or Meridian Audio Ltd. 15
