Meridian America Meridian 518 11

Overview of 518	11

Tuner		DSP
Tuner		Speaker
		Speaker
LP
CD Player	562	518
CD Player
LaserDisc

DSP

Speaker

DAT

Using 518 with DSP Loudspeakers

As the diagram shows, a 518 can be placed between the 562 and the Meridian DSP speakers. In this case, the 518 is used – very much as it is for the earlier CD example – to provide further de-jittering and resolution enhancement. The Meridian DSP speakers can read 22 bits on the input and have analogue de-emphasis, so 518 can significantly improve the sound of this system.4

Because 518 does not pass on subcode, the time display feature on DSP5000 or DSP6000 becomes disabled. However the Meridian Comms system keeps the speaker updated on the current track number.

Meridian Surround improvement

The Meridian 565 is a world-beating surround decoder. One of its unusual features is the ability to accept digital signals directly to the DSP decoding. This means, for example, that the signal from a LaserDisc can be passed without the distortion of in-built (and often inferior) DACs and results in a substantially improved sound.

The Meridian 565 can drive DSP, active or conventional loudspeakers in any combination.

Tuner
LP
CD Player	562V	518	565
CD Player

LaserDisc

DAT

Using 518 with a 565 Digital Surround Processor

Whatever the output configuration, the 518 should be placed before the 565 Digital Surround Processor – so that the precision of the inputs (normally 16 bit) can be matched to the 20 bit input capability of 565.5

4Setup details: set 518 to Type 1. Set Out to 22 C.

5Setup details: set 518 to Type 1. Set Out to 20 C.

518 User Guide

Contents

Page Contents Page Sales and service in the UK Sales and service in the USA Designed & manufactured in the UK by Acknowledgements Introduction About this manual Conventions used in this manual About the 500 Series Unpacking the Installing your General precautions Connections Siting Planning setup of What's inside a 518 Overview as Preamp (Type 0) Page Overview as Resolution Enhancement Processor (Type 1) Page Overview as Mastering Processor (Type 2) Overview as Multimedia Processor (Type 2) Customising features Starting off with Checking Switching on If there is no display Memory Operating 518 as a Control Unit (Type 0) Selecting a source Adjusting the volume Out Dither Page Emphasis Light Clip Display Software version Advanced operation using the Remote Control Putting the 518 in Standby Muting the sound Menu Keys Operating 518 as Resolution Enhancer (Type 1) Volume control Gain control Operation summary Customising 518, an overview Restoring default settings Type: an overview Config: an overview How to customise Customising, general procedure Customising using Type Customising using Config How to use Config Page Page Setting up sources Page Connections Digital audio connections Communications connections To connect to other Meridian 500 Series equipment Mastering Processor Description 518 as a Mastering or Multimedia Processor (Type 2) Meridian 500 Comms warning Page Making Recordings Transfer to editor Transfer to the final carrier Noise shaper characteristics 518 Operating Background Page Simple rules for using Specification Help Standby point not lit Audible hiss at high volume settings No output with Meridian 565, DSP speaker or DAC No time display with Meridian DSP speaker Cleaning Maintenance & Service Appendix 1 – Noise Shapes Page Page Appendix 2 – Hints on Mastering with noise-shaping Page Appendix 3 – RS232 Appendix 4 –ResolutionEnhancement Jitter and de-jittering Dynamic-range Dynamic-rangeoptimisation with Gain Dynamic-rangeoptimisation with Pre-emphasis Page Page DAC enhancement by using high-frequencydither DAC or channel enhancement by word-lengthmatching Index Page Notes