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Meridian 558 manual

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Table of contents for the manual

  • Page 1

    Meridian 558 Multi Channel Power Amplifier user guide[...]

  • Page 2

    i Preface Meridian 558 Multi Channel Power Amplifier User Guide[...]

  • Page 3

    Preface ii Sales and service in the UK Meridian Audio Ltd Stonehill Stukeley Meadows Cambs PE18 6ED England Tel␣ ␣ (01480) 52144 Fax␣ ␣ (01480) 459934 World Wide Web http://www.meridian-audio.com Sales and service in the USA Meridian America Inc 3800 Camp Creek Parkway Building 2400 Suite 122 Atlanta GA 30331 Tel (404) 344 7111 Fax (404) 34[...]

  • Page 4

    iii Preface Contents Introduction 1 Introduces the 558 Multi Channel Power Amplifier, and provides an overview of the other products available in the Meridian 500 Series. The Meridian 500 Series ........................ 2 Sample configurations ........................... 3 Specification and accessories ............... 4 Setting up the multi channel[...]

  • Page 5

    Preface iv[...]

  • Page 6

    Introduction 1 Intr oduction T he 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 prec[...]

  • Page 7

    2 Introduction The Meridian 500 Series The Meridian 500 Series is a unique system of digital, analogue, and video components designed to meet the demand for absolute quality, ease of use, and lasting value. The flexibility of the Meridian 500 Series is such that you can assemble a system as simple or as complex as you need, perfectly suited to your[...]

  • Page 8

    Introduction 3 Sample configuration 558 Multi Channel Power Amplifier The 558 Multi Channel Power Amplifier is ideal for use with the Meridian 561 Digital Surround Controller or the 568 Digital Surround Processor, to drive five analogue loudspeakers in a high-quality surround system. The 568 provides balanced A500 558 A500 A500 A500 568/561 Meridia[...]

  • Page 9

    4 Introduction Specification Input 1.4V RMS. Output (bridged Greater than 200W per channel into 8 Ω . mode off) Greater than 300W per channel into 4 Ω . Output (bridged Greater than 400W into 8 Ω . mode on) Greater than 600W into 4 Ω . Distortion Less than 0.05%. Noise Less than -90dB. Trigger input 5 to 30Vdc or 5-30Vac peak to peak, polar[...]

  • Page 10

    Setting up the multi channel power amplifier 5 Setting up the multi channel power amplifier T his 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 [...]

  • Page 11

    Setting up the multi channel power amplifier 6 Unpacking The 558 Multi Channel Power Amplifier comes in a box containing the following components: ❍ 558 Multi Channel Power Amplifier. ❍ 1 power cord. ❍ 2 bridged mode links. ❍ This manual. You are advised to retain the packing in case you need to transport the unit. The 558 Multi Channel Pow[...]

  • Page 12

    Setting up the multi channel power amplifier 7 Back panel Connecting the multi channel power amplifier OFF ON TRIGGER INPUT INPUT SELECTOR BALANCED UNBALANCED BALANCED UNBALANCED + + –– BRIDGED MODE INPUT CHANNELS 4/5 INPUT SELECTOR BALANCED UNBALANCED BALANCED UNBALANCED + + –– INPUT SELECTOR BALANCED UNBALANCED BALANCED UNBALANCED + + –[...]

  • Page 13

    Setting up the multi channel power amplifier 8 Outputs The following table gives details of the output connections: Use this output To connect to this CHANNEL 1 to Loudspeakers of 4 Ω to 15 Ω , using CHANNEL 5 either plug or bare wire connections. The recommended assignment of channels, to make best use of the capacity of each power supply, is [...]

  • Page 14

    Setting up the multi channel power amplifier 9 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. I[...]

  • Page 15

    Setting up the multi channel power amplifier 10 To connect to a 568 Digital Surround Processor 558 Multi Channel Power Amplifier 568 Digital Surround Pr ocessor RIGHT C REAR-L REAR-R LEFT OFF OFF ● Switch the two BRIDGED MODE switches to the OFF position. ● Connect the LEFT, RIGHT, and CENTRE balanced outputs from the 568 to the CHANNEL 1, 2, a[...]

  • Page 16

    Setting up the multi channel power amplifier 11 To connect to A500 Loudspeakers 558 Multi Channel Power Amplifier A500 Loudspeaker A500 Loudspeaker OFF OFF ● Set the BRIDGED MODE switches to the OFF position. ● Connect one of each pair of the red and black terminals from the appropriate channel of the 558 Multi Channel Power Amplifier to the re[...]

  • Page 17

    Setting up the multi channel power amplifier 12 To wire to A500 Loudspeakers in bridged mode 558 Multi Channel Power Amplifier A500 Loudspeaker A500 Loudspeaker ON ON Input Input You can wire channels 1/2 and 4/5 in bridged output mode, to obtain more than twice the power output. ● Switch the BRIDGED MODE switches to the ON position. ● Connect [...]

  • Page 18

    Setting up the multi channel power amplifier 13 ● If necessary, remove the links bridging the LF and HF terminals on the back of each loudspeaker. ● 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. ● Likewise, connect the LF and HF units from the right lou[...]

  • Page 19

    Setting up the multi channel power amplifier 14 To connect two 558s to a seven-channel surround system ON OFF 2 x 558 Multi Channel Power Amplifiers ON ON Centre Main left Main right Rear left Rear right Main right Centre Rear left Rear right Side left Main left Side right Side left Side right Two 558 Multi Channel Power Amplifiers can be used as t[...]

  • Page 20

    Troubleshooting 15 T r oubleshooting T his 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[...]

  • Page 21

    Troubleshooting 16 T r oubleshooting No front panel indicator is shown ❍ Check that your AC power supply is connected correctly. ❍ Check that the ON OFF switch on the back panel is in the ON position. ❍ Check that the unit has been taken out of standby using the front panel button or TRIGGER INPUT. ❍ Check that the fuse on the multi channel[...]

  • Page 22

    Troubleshooting 17 Cleaning When cleaning the multi channel power amplifier bear in mind that the front of the unit is brushed aluminium and the case is metal. Disconnect the power cord before cleaning the unit. Note: Do not use abrasive cleaners on any part of the multi channel power amplifier. To clean the case ● Use a slightly damp cloth. Ensu[...]

  • Page 23

    Troubleshooting 18 Service The Meridian 500 Series of hi-fi components have been carefully designed to give years of untroubled service. There are no user- serviceable parts inside the case, nor do the units require any form of maintenance. In the unlikely event that your multi channel power amplifier fails to function correctly, it should be retur[...]

  • Page 24

    19 Index Index A Accessorie s 4 B Balanced inputs 8 Bi-amp connectio n 13 Bi-wire connectio n 8 , 11 Bridged mod e 12 C Cleanin g 17 the audio connection s 17 the case 17 Components 6 Connecting to a 501/501V Control Uni t 10 to a 568 10 to A500 Loudspeakers 11 , 12 to an analogue preamplifier 10 to two A500 Loudspeaker s 13 two 558s to a seven-cha[...]

  • Page 25

    Index 20[...]