Meridian Audio 8000 User Manual

8000

MERIDIAN DSP
LOUDSPEAKER

USER GUIDE

Meridian DSP8000 Digital Loudspeaker

System User Guide

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PREFACE

Copyright and acknowledgements

Sales and service in the UK

Meridian Audio Ltd

Stonehill

Stukeley Meadows

Cambs

PE29 6EX

England

Tel [phone]

Fax [phone]

World Wide Web – http://www.meridian-audio.com

Designed and

manufactured in the UK by

Digital Gramophone and Wireless Ltd

Stukeley Meadows

Sales and service in the USA

Meridian America Inc

3800 Camp Creek Parkway

Building 2400

Suite 122

Atlanta

GA 30331

Tel [phone]

Fax [phone]

Stonehill

Cambs

PE29 6EX

England

Copyright © 2000 Digital Gramophone and Wireless Ltd.

Part no: DSP8000U/1

Boothroyd|Stuart Meridian, Meridian,
Meridian Digital Theatre, Meridian
Lossless Packing, MHR and MLP are
registered trademarks of Meridian
Audio Ltd.

MHR: This product incorporates
copyright protection technology covered
by certain patent applications and
intellectual property of Meridian Audio
Ltd. This technology is provided for the
express purpose of securely containing
copyright audio within the Meridian
System only. Reverse engineering or
circumvention of this protection is
strictly prohibited.

FCC Warning: This equipment
generates and can radiate radio
frequency energy and if not installed

and used correctly in accordance with
our instructions may cause interference
to radio communications or radio and
television reception. It has been type­tested and complies with the limits set
out in Subpart J, Part 15 of FCC rules for
a Class B computing device. These limits
are intended to provide reasonable
protection against such interference in
home installations.

EEC: This product has been designed
and type-tested to comply with the
limits set out in EN55013 and EN55020.

This guide was produced by:
Human-Computer Interface Ltd,
http://www.interface.co.uk

ii

Contents

Introduction 1

Meridian DSP8000 loudspeaker system 2

Sample configurations 5

Specification 6

Available accessories 8

Setting up the DSP8000
loudspeakers 9

Unpacking 10

Positioning the DSP8000 loudspeakers 13

Connecting the loudspeakers 14

Connecting to other equipment 15

Using the DSP8000
loudspeakers 19

Selecting a source 20

Changing the display 21

Adjusting the volume 22

Changing the tilt, bass or phase 23

Changing the listening position 24

Configuring the DSP8000
loudspeakers 25

Choosing standard settings 26

Specifying information about your system 28

Configuring the sources 29

Configuring the setup options 31

Troubleshooting 33

Troubleshooting 34

Maintenance and cleaning 36

Service and guarantee 37

iii

Index 39

iv

Introduction

Welcome to the Meridian DSP8000 Digital Loudspeaker System!

This User Guide provides full information about using the DSP8000

loudspeakers in conjunction with your other equipment, to achieve the

superb results you can expect from them.

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INTRODUCTION

Meridian DSP8000 loudspeaker system

The Meridian DSP8000 loudspeaker system represents the fruits of more
than 25 years of continuous development of loudspeakers as musical
instruments. The finest materials and state-of-the-art design are combined
to create what we believe is the ultimate home loudspeaker.

Digital Signal Processing

Digital Signal Processing, or DSP, is a technique pioneered by Meridian in
hi-fi products for achieving extremely accurate reproduction of audio
signals using high-precision mathematical processing.

DSP allows sophisticated processing to be performed without any of the
cumulative noise or degradation that inevitably occurs, even with high­quality analogue circuitry. In addition, the signal improvement techniques
incorporated in the Meridian DSP loudspeakers would be virtually
impossible to implement in analogue circuitry.

The Meridian DSP loudspeakers take advantage of DSP for several different
functions:

•

To remove timing variations from the incoming digital signals
(de-jittering).

•

To upsample 44.1kHz and 48kHz signals to 88.2kHz and 96kHz.

•

To split the frequency band between bass, mid-range, and treble drivers
(crossover).

•

To perform filtering or adjustment of the frequency response; eg treble
or bass.

•

To provide volume control to 48-bit precision.

•

To provide digital protection of the loudspeakers against high-level low­frequency transients.

•

To perform electronic equalisation.

If you are using the Meridian DSP loudspeakers with a digital source, such
as CD or DVD, the signals remain in digital form until the last possible
stage.

DSP loudspeaker drivers

Each DSP8000 loudspeaker uses six multiple high-efficiency long-throw
custom bass drive units. The bass units are mounted symmetrically in pairs
on the sides of the bass cabinet, cancelling vibration in order to minimise
interference with the mid-range and treble units.

2

INTRODUCTION

The treble and mid-range drivers are mounted in a separate sealed head
assembly. The treble unit is a semi-horn-loaded composite dome design
with a silver voice coil. The mid-range unit incorporates a cone made from
a uniquely light and stiff combination of polymers to give unparalleled
transparency.

Power amplifiers

The speakers are driven by five independent high-power low-feedback
power amplifiers mounted on a multi-finned extruded heatsink. The
combination of idealised magnetic design, careful star earthing, and very
fast output devices gives the amplifiers extremely low noise, high detail,
and fast bass.

The whole electronic assembly is supplied from two substantial toroidal
transformers feeding high-quality audiophile-grade capacitors.

Cabinet

Each DSP8000 loudspeaker is built around a precision manufactured
cabinet, which uses innovative design techniques to give exceptionally low
coloration and amazing mid-range transparency.

The head assembly is a sealed enclosure fabricated from curved pressure­laminated panels, each using multiple layers of selected woods and metal
to provide high stiffness and damping. Its narrow tapered shape offers
optimum dispersion across a wide listening area. It is supported on the bass
enclosure by three machined feet.

Like the head unit, the bass cabinet is constructed from interlaminated
panels with extensive bracing. The front panel is 6mm glass and
incorporates a window for the matrix display and infrared remote control
sensor. The cabinet stands on triangulated adjustable machined foot
assemblies with provision for floor spikes or skids.

Meridian High Resolution (MHR)

The DSP8000 loudspeakers support Meridian High Resolution (MHR), to
allow you to connect to other MHR-compliant Meridian products to take
advantage of high-rate audio sources, and provide the additional benefits
of lower jitter and improved sound quality on all sources.

MHR is a proprietary secure encoding format that uses encryption and anti­copy methods to provide a secure copyright protection environment, and
allow the secure transfer of audio streams within a Meridian-only system
for playback only.

3

INTRODUCTION

Meridian Comms

The Meridian DSP loudspeakers are part of the Meridian family of
advanced digital, analogue, and video components, and these incorporate
a sophisticated communications link, to allow you to control any
combination of units using a single remote, and ensure that they will work
together as a fully integrated system.

The communications system also allows you to extend your hi-fi system into
two or three rooms, with the ability to control the sources in one room
from the controller in another room.

The following page shows two recommended configurations based on the
Meridian DSP8000 loudspeakers to illustrate the flexibility of Meridian
components.

4

INTRODUCTION

Sample configurations

Meridian Digital Theatre™

DSP8000

Meridian 800 Reference

DVD/CD Player

DSP8000 DSP8000

DSP5500HC

Meridian 861 Reference Digital

Surround Controller

DSP8000

Up to seven Meridian DSP8000 loudspeakers can be used in conjunction
with a Meridian Surround Processor to create a digital surround system
with superb music and cinema sound.

The Meridian DVD Player is an ideal source for use with DSP loudspeakers.
It allows you to play both audio CDs and DVD movies, with the audio kept
in digital form until the last possible stage.

Meridian Digital Music System

DSP8000

Meridian 800 Reference

DVD/CD Player

Meridian DSP loudspeakers include DSP volume and tone controls, and can
be connected directly to up to two digital sources to create an extremely
compact high-quality music system.

5

DSP8000

INTRODUCTION

Specification

Digital inputs and outputs

•

2 x cable digital inputs, 75Ω, IEC958, 44.1-96kHz. FIFO locks at 44.1, 48,

88.2, or 96kHz ± 150ppm, PCM or MHR encoding.

•

176.4kHz or 192kHz supported with special firmware and cabling; details
available on request.

•

1 x cable digital output, 75Ω, IEC958, providing a copy of the selected
input.

Signal processing

•

2 x Motorola 56366 running at 100MHz.

•

4 x 192kHz/24-bit Delta-Sigma DACs.

•

Crossovers linear-phase ±30º at 200Hz and 2.6kHz.

Output stages

•

Power amplifiers: Complementary bipolar design, with output-stage
error correction and low feedback design.

•

Bass: 3 x 150W RMS.

•

Mid: 100W RMS.

•

Treble: 100W RMS.

Acoustic

•

3 Qw way.

•

Closed bass enclosure.

•

Separate mid/top plywood cabinet.

•

Bass drive unit: 6 x 200mm (8") high-efficiency long-throw custom
drivers.

•

Mid drive unit: 1 x 160mm (6") custom driver.

•

Treble drive unit: 1 x 25mm (1") Meridian piston in short horn,
composite dome with silver voice-coil.

Characteristics

•

Distortion typically <0.01%, or <0.02% up to full power at all
frequencies.

•

Noise and hum <-94dBr at all volume settings.

•

Acoustic output typically >115dB spl @ 1m.

•

Acoustic noise <15dB spl @ 1m.

•

Frequency response in room response within 3dB, 25Hz-35kHz.

Control

•

2 x Meridian Comms.

•

9-pin D connector for RS232 PC setup and control, null modem, 9600
baud, 2N1, no handshake.

6

INTRODUCTION

Cabinet

•

Entire speaker manufactured from interlaminated panels.

•

Glass front.

•

Finished in high-gloss black piano lacquer.

•

400mm x 1300mm x 528mm (15.7" x 51.2" x 20.8") (W x H x D excluding
feet).

•

105kg (231lb) each.

Power

•

100-125; 200-250V AC 50-60Hz.

•

20VA idle; 900VA max.

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

7

INTRODUCTION

Available accessories

Each pair of DSP8000 loudspeakers is shipped with a Meridian System
Remote and cables to enable them to be used as the front speakers in a
Meridian Digital Theatre with a Meridian DVD Player (such as the 800) or a
Meridian Digital Surround Controller (such as the 861, 568, or 561).

Other applications, and some advanced features, may require one or more
of the following accessories, which can be purchased from your Meridian
dealer.

•

Additional S5 leads (8m and 14m).

•

511 S-patch box if connecting more than two DSP loudspeakers to a 561
Digital Surround Controller or 568 Digital Surround Processor (not
required with 861).

8

Setting up the DSP8000 loudspeakers

This chapter explains how to install your DSP8000 loudspeakers. It

describes what you should find when you unpack the speakers, how

you should connect them to your other audio equipment, and the

siting constraints.

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SETTING UP THE

DSP8000

LOUDSPEAKERS

Unpacking

Before you begin installation you should ensure that your DSP8000
loudspeakers are the correct voltage for your local AC supply. If they are
not, do not try to install them, and contact your dealer.

You should not make any connections to the DSP8000 loudspeakers, or to
any other component in your system, while the AC power supply is
connected and switched on.

Care when unpacking

Take great care when unpacking or re-packing the DSP8000 loudspeakers
that you do not put undue pressure on the side containing the drive units,
as they may be damaged if pressed.

Components

Each pair of DSP8000 loudspeakers is supplied with the following
components:

•

The DSP8000 loudspeakers.

•

Grilles packed separately.

•

Six foot-mounting plates, spike clamps, spikes, and spike protectors.

•

Four stabilisers.

•

A hex wrench (3mm) for the drive units.

•

A 10mm spanner for removing the headboard and footboard.

•

Six shouldered spikes for the head unit.

•

Meridian System Remote, battery and user guide.

•

One power cord per speaker suitable for your territory.

•

Meridian M5 lead (8 metres).

•

Meridian S5 lead (8 metres).

•

This user guide.

You will also need a No. 2 Pozidriv screwdriver to attach the foot mounting
plate.

If any of these items is missing, please contact your dealer. We suggest that
you retain the packaging carefully, as it provides maximum protection in
transit.

Unpacking

To unpack the DSP8000 loudspeakers please follow the instructions on the
enclosed leaflet.

10

SETTING UP THE

DSP8000

LOUDSPEAKERS

Caution

Meridian Audio has taken every care in the design, assembly, finishing and
packing of this product. The high gloss finish on parts of the cabinet is
achieved by painting up to five coats of polyester lacquer onto the
plywood, each one hand polished.

Due to the product size and high technology cabinet construction, small
marks on the lacquer surface may be visible when unpacked. These small
marks can usually be removed as described in Maintenance and cleaning,
page 36.

It is the nature of all lacquer finishes to shrink over time. This is
unavoidable and may result in cabinet joint lines becoming visible.

Meridian Audio has supplied products using lacquer finishes for many years
and we are confident that when carefully used your product will return a
lifetime’s enjoyment.

Tightening the drive units

The DSP8000 loudspeakers typically take about two weeks of normal use
for the drive units to settle. It is therefore recommended that you leave the
grilles unfitted during this period, and tighten the mounting bolts on each
drive unit every few days. Tighten the bolts in symmetrically opposite pairs
using the 3mm hex wrench provided.

You should then check and if necessary retighten the drive units every few
years.

To dismantle the loudspeakers

It is advisable to remove the head units when moving the speakers. This is
achieved by disconnecting the head lead from the head unit and lifting off
the head. Take care while the head is not in position as this exposes its
mounting spikes. While not in place the head should be stored safely but
care should also be taken of the surface they are placed upon as it may be
damaged by the cups.

When dismantling the speakers always disconnect and switch the power off
first.

Note: Do not disconnect the head lead while the unit is connected
to the AC supply and switched on.

11

SETTING UP THE

DSP8000

LOUDSPEAKERS

Radio interference

FCC Warning: This equipment generates and can radiate radio frequency

energy and if not installed and used correctly in accordance with our
instructions may cause interference to radio communications or radio and
television reception. It has been type-tested and complies with the limits
set out in Subpart J, Part 15 of FCC rules for a Class B computing device.
These limits are intended to provide reasonable protection against such
interference in home installations.

EEC: This product has been designed and type-tested to comply with the
limits set out in EN55013 and EN55020.

12

SETTING UP THE

DSP8000

LOUDSPEAKERS

Positioning the DSP8000 loudspeakers

Safety warnings

•

Do not expose the speakers to dripping or splashing.

•

Do not place any object filled with liquid, such as a vase or plant pot, on
the speakers.

•

Do not place naked flame sources, such as lighted candles, on the
speakers.

To avoid overheating

Do not position the speakers:

•

In direct sunlight.

•

Near heat sources, such as a radiator.

•

Directly on top of heat producing equipment.

The back panel of the DSP8000 loudspeaker acts as a heatsink and requires
adequate ventilation. Ensure that air can flow around it.

The heatsink normally runs warm to the touch when the speakers are not
in standby.

To obtain the best sound

For best results adjust the position of the loudspeakers while listening to
music.

If possible, have the most acoustically absorbent wall in the room behind
the front speakers. Ideally have each DSP8000 loudspeaker at least 0.5m
(20") from a corner, and position them approximately 0.25m (10") from the
wall.

If you are using a DSP8000 loudspeaker as a centre channel, place the
speaker centrally between the main left-right pair and, if possible, arrange
for the treble units of the three speakers to be approximately the same
height.

13

SETTING UP THE

DSP8000

LOUDSPEAKERS

Connecting the loudspeakers

Back panel

The following diagram gives details of the back panel connections:

Digital inputs

DIGITAL INPUT DIGITAL

21

OUTPUT

Digital output

Comms

MERIDIAN COMMS RS232

OUTPUT INPUT

PC

Digital connections

The following table gives details of the digital audio connections:

Use this connection To connect to this

DIGITAL INPUT 1, A digital source, such as a digital sound processor
DIGITAL INPUT 2 digital preamplifier, CD player or DVD player.

DIGITAL OUTPUT A second (slave) DSP loudspeaker, using an S5 lead.

The digital connections should be made with high-quality 75Ω screened

cable. Suitable cables are available from Meridian. We do not recommend
using audio cables, which do not have adequate shielding or the correct
impedance, or cables intended for UHF applications, as these do not
provide adequate shielding in the 1–30MHz region.

Communications connections

The following table gives details of the communications connections:

Use this connection To connect to this

COMMS INPUT The COMMS connection on a Meridian control unit or

COMMS OUTPUT The COMMS INPUT on a second DSP loudspeaker.

RS232 The serial port of a PC, to control the DSP loudspeaker using a

preamplifier.

computer. For more information see the Meridian Web site,
http://www.meridian-audio.com.

14

SETTING UP THE

DSP8000

LOUDSPEAKERS

Connecting to other equipment

To connect two DSP loudspeakers in a Meridian system

562V.2 Multimedia Controller

DIGITAL

COMMS

OUTPUT

M5 lead

DSP loudspeaker – Main R DSP loudspeaker – Main L

DIGITAL INPUT

21

DIGITAL
OUTPUT

You can connect two DSP loudspeakers directly to a Meridian CD or DVD
player, Digital Surround Processor, or Meridian 562V.2 Multimedia
Controller.

• Connect one of the COMMS sockets on the Meridian source or control
unit, and the MAIN digital output, to one of the speakers using the M5
lead supplied.

COMMS

OUTPUT INPUT

DIGITAL INPUT

21

S5 lead

DIGITAL

OUTPUT

COMMS

OUTPUT INPUT

• Link the two DSP loudspeakers together using the S5 lead supplied, as
shown in the illustration.

To use a DSP loudspeaker as a centre speaker

Meridian Surround Processor

CENTRE
DIGITAL

COMMS

OUTPUT

M5 lead

DSP loudspeaker – Centre

DIGITAL INPUT

21

DIGITAL

OUTPUT

You can use a single DSP loudspeaker as a centre speaker in a Meridian
surround system.

• Connect the speaker to the CENTRE digital output using an M5 lead, as
shown in the illustration.

COMMS

OUTPUT INPUT

15

SETTING UP THE

DSP8000

LOUDSPEAKERS

To connect three or more DSP loudspeakers in a
Meridian surround system

DSP loudspeaker

Centre (master)

COMMS

OUTPUT INPUT

DIGITAL

OUTPUT

M5 lead

Meridian Surround Processor

DIGITAL OUTPUTSCOMMS

511 S-patch box

21

DIGITAL INPUT

S5 lead (digital unused)

S5 lead

DSP loudspeaker – Main R DSP loudspeaker – Main L

DIGITAL INPUT

21

DIGITAL

OUTPUT

COMMS

OUTPUT INPUT

DIGITAL INPUT

21

DIGITAL

OUTPUT

COMMS

OUTPUT INPUT

S5 lead

If your system includes more than two Meridian DSP loudspeakers you may
need a 511 S-patch box (available separately) to link together the S5 leads
from each speaker, as shown above.

• Use the comms part of an M5 lead to connect one of the COMMS
sockets on the Meridian Surround Processor to the DSP loudspeaker you
have chosen as the master (typically the centre speaker).

• Use the audio part of the M5 lead to connect the DSP loudspeaker to
the appropriate digital output on the Meridian Surround Processor.

• Connect the COMMS output from the master DSP loudspeaker to one
socket on the 511 using an S5 lead.

• Link all the other DSP loudspeakers together in pairs using S5 leads, as
shown in the illustration.

• Connect each pair of DSP loudspeakers to the appropriate digital output
on the Meridian Surround Processor, using an S5 lead. The other part of
the S5 lead is used to distribute the COMMS from the 511 to each pair of
DSP loudspeakers.

16

SETTING UP THE

DSP8000

LOUDSPEAKERS

To connect two DSP loudspeakers to a Meridian CD
Player or other digital source

508.24 24-Bit CD Player

DIGITAL

COMMS

OUTPUT

M5 lead

DSP loudspeaker – Main R DSP loudspeaker – Main L

DIGITAL INPUT

21

DIGITAL

OUTPUT

You can create a complete system by connecting a pair of DSP loudspeakers
directly to a digital source. The DSP loudspeakers include volume, balance,
and tone controls allowing you to control the system using the Meridian
System Remote.

• Connect one of the COMMS sockets on the Meridian source, and the
digital output, to one of the DSP loudspeakers using the M5 lead.

COMMS

OUTPUT INPUT

DIGITAL INPUT

21

S5 lead

DIGITAL

OUTPUT

COMMS

OUTPUT INPUT

• Link the two DSP loudspeakers together using the S5 lead, as shown in
the illustration.

You can connect another digital source to DIGITAL INPUT 2, and then
configure the appropriate source selection key on the remote to select that
input; see Configuring the sources, page 29.

See the chapter Using the DSP8000 Loudspeakers, page 19, for information
about controlling the DSP loudspeakers.

17

SETTING UP THE

DSP8000

LOUDSPEAKERS

18

Using the DSP8000 loudspeakers

In systems with a Meridian preamplifier or control unit all of the

functions of the DSP8000 loudspeakers, including volume, tilt, and

bass, are operated via the controller. For more information refer to the

user guide for the preamplifier or control unit, and you can ignore this

chapter.

However, the DSP8000 loudspeakers can also be connected directly to

up to two digital sources to create a complete, minimum system. This

chapter provides step-by-step instructions for operating the DSP

loudspeakers in a system with no Meridian preamplifier or control

unit.

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USING THE DSP8000

LOUDSPEAKERS

Selecting a source

When not playing, the DSP8000 loudspeakers should be left in the standby
state. This uses a negligible amount of electricity, but ensures that the
components of the loudspeakers operate at maximum efficiency from the
moment you start.

If you are not going to use the DSP8000 loudspeakers for several days you
should switch each unit completely off at the back panel, and disconnect it
from the AC power supply.

To select a source

• Press the appropriate source key on the remote; eg Radio.

This will bring the DSP8000 loudspeakers out of standby, and the displays
will show the currently selected source and volume setting.

For example:

By default the 12 sources shown below are available.

As standard, all the sources are set to select the D1 digital input. To select
the D2 input, see To configure a source, page 29.

Source Label Source Label

CD CD CDR CDR

Radio Radio Cable Cable

LP LP DVD DVD

TV TV Cable Cable

Tape1 Tape1 VCR1 VCR1

Tape2 Tape2 LD LDisc

Radio 65

To switch to standby

• Press Off on the remote.

The loudspeakers will switch to standby and
the displays will show:

.

20

USING THE DSP8000

LOUDSPEAKERS

Changing the display

The DSP8000 loudspeakers display information about the current settings
on the 8-character front-panel display.

In addition, three coloured indicators show status information.

To change the displayed information

• Press Display.

Pressing Display steps between the following options:

Display option Example

Source and volume

Radio 65

Meridian source display
(dashes if not present)

Audio format

----

PCM 96k

Blank

The audio format display shows PCM, Data, or MHR followed by the
frequency, or NL (not locked).

Status indicators

The display includes the following status indicators:

Indicator Description

Red Master loudspeaker.

Yellow 88kHz or 96kHz input.

Green Clipping; see Troubleshooting, page 33.

21

USING THE DSP8000

LOUDSPEAKERS

Adjusting the volume

The DSP8000 loudspeakers adjust the volume in precise steps of 1dB, where
9dB is equivalent to doubling the loudness, and can be varied in the range
1 to 99dB.

When you first connect power to the DSP8000 loudspeakers the volume is
set to 65, which is similar to the midway position of the rotary volume
control on a conventional preamplifier.

To change the volume

• Press the red A or V keys on the remote.

As you adjust the volume setting the display
will show the current volume level:

To mute the sound

• Press Mute on the remote.

Radio 55

The display will show:

Muted

To restore the sound

• Press Mute again on the remote.

Alternatively, the sound will be restored if you adjust the volume.

22

USING THE DSP8000

LOUDSPEAKERS

Changing the tilt, bass or phase

The DSP loudspeakers provide sophisticated tilt and bass controls, to allow
you to adjust the broad balance of the system to correct for the acoustics of
your listening room, or for a misbalanced recording.

The controls are more subtle than conventional tone controls, and take
advantage of digital signal processing techniques to provide a more natural
adjustment of the frequency response.

You can also change the absolute phase of the signal, to compensate for
signals which are out of phase, giving an unnatural-sounding bass.

To change the tilt

• Press < or > until the display shows the current tilt.

For example:

• Press A or V to change the tilt.

The tilt control tilts the frequency of the response over the entire
frequency range to make the sound brighter or dimmer. It can be adjusted
between ±10db in 0.5dB steps. Normally settings between +1.0 and -2.0 will
give the most natural results.

Tilt+0.0

To change the bass

• Press < or > until the display shows the current bass setting.

For example:

• Press A or V to change the bass.

The bass control allows you to adjust the bass response in the room by
±5dB in 0.5dB steps. Normally settings between +3.0 and -2.0 will give the
most natural results.

Bass+0.0

To change the absolute phase

• Press > or < until the display shows the current phase.

For example:

• Press A or V to change the phase.

23

Phase +

USING THE DSP8000

LOUDSPEAKERS

Changing the listening position

The balance control of the DSP8000 loudspeakers uses digital signal
processing to compensate for an off-centre listening position by delaying
and diminishing the sound in one speaker, thus effectively shifting the
speaker’s image back.

The axis control allows you to adjust the optimum listening height of the
DSP8000 loudspeakers, like a balance control operating in the vertical
plane.

To change the balance

• Press < or > on the remote until the display shows the current balance.

For example:

• Press A or V to change the balance.

The display shows the direction and position of the listening position.

For example:

There are 32 steps in each direction.

Bal. <0>

Bal. 12>

To change the axis

• Press < or > on the remote until the display shows the current axis
setting.

For example:

• Press A or V to change the axis.

The axis can be adjusted between 3 and -2, where 0 corresponds to the axis
of the treble unit. Usually a listener will be below that position, so we
recommend settings of -1 or -2.

Axis -1

To restore flat settings

• Press Clear on the remote.

The display shows:

This restores the balance, axis, tilt, and bass to zero.

24

Reset

Configuring the DSP8000 loudspeakers

This chapter explains how to configure the DSP8000 loudspeakers to

suit the other equipment in your system.

The first stage in configuring the DSP8000 loudspeakers is to choose

one of the standard settings, and these are designed to set all of the

parameters to their most common values.

You can also configure each setting individually for applications not

catered for by one of the standard settings.

Once you have configured the DSP8000 loudspeakers you will

probably never need to change the configuration, unless you alter the

equipment connected to your system at a later stage.

CD RADIO LP TV TAPE 1 TAPE 2 CDR CABLE

123

456

789

Function 0 Title

Chapter

DVD

VCR 1 VCR 2 LD

Repeat

Record

Angle Audio A-B Phase

OSD

Store

Subtitle

Slow

T

EnterReturn

Clear

Menu Volume

Setup

Preset

Display

Band

25

Off

Mute

CONFIGURING THE

DSP8000

LOUDSPEAKERS

Choosing standard settings

The DSP8000 loudspeakers provide the following five alternative standard
settings, called Types, which configure all aspects of the loudspeaker into
the most commonly needed configurations:

Type Description

1 For use with a Meridian control unit such as the 562V.2.

5 For use with a CD player connected to D1; all other sources use D2.

6 For use with a Meridian Surround Controller.

7 For use in a second room.

8 For use in the second or third room of a three-room system.

Types 2, 3, and 4 are for compatibility with 200/600 series units.

In all cases except Type 5, the D1 input is used for all sources.

Choosing one of the standard settings overrides any other configuration
you may have performed, and so can be used to reset the configuration of
the speakers.

To select a standard setting

• Switch off the DSP loudspeaker.

• Turn on the power again while holding down the 1 key on the remote.

The display will show the Type number.

For example:

• Release the remote key.

The display will show:

You should now specify the speaker’s position as follows.

Type 1

L.

26

CONFIGURING THE

DSP8000

LOUDSPEAKERS

To specify the speaker position

• Press A or V to specify the speaker position.

The options are shown in the following table:

Display Position

L. Left.

R. Right.

C. Centre (Type 6 only).

S.L. Left surround (Type 6 only).

S.R. Right surround (Type 6 only).

To choose master or slave

You should select one loudspeaker to be the master; this will normally be
the centre channel. See Setting up the DSP8000 loudspeakers, page 9. The
other DSP8000 loudspeakers should be configured as slaves as follows.

• Press the green > (Play) key on the remote.

The display shows,
for example:

L. Slv.

When you have configured the loudspeaker:

• Switch off the DSP8000 loudspeaker, using the power switch on the
back, and then switch on again to restore normal operation.

27

CONFIGURING THE

DSP8000

LOUDSPEAKERS

Specifying information about your system

You can configure the operation of the DSP8000 loudspeakers to suit the
way your system is set up, and the way in which you want to use it.

These settings are configured automatically to appropriate values when
you choose one of the standard Type settings, and you should not normally
need to alter them; see Choosing standard settings, page 26.

To configure the DSP8000 loudspeaker

• Turn off the DSP loudspeaker, using the power switch on the back panel.

• Turn on the power again while holding down the 0 key on the remote.

The display will show the current setting of the first configuration option.

For example:

• Press > or < to step between the options.

• Press A or V to change the value of the current option.

The table below shows the options you can configure.

Option Initial Value

Position and master/slave

Communications mode (500 or 200)

Controller mode (Auto, Con, or NCon)

System address (1–8)

Product address (1–8)

Volume mode (1=normal,
2/3=second/additional room)

L.

500

Auto

S.A. 1

P.A. 1

L.E. 1

L.

Balance control? (N or Y)

Centre menus? (N or Y)

Diagnostic displays? (N or Y)

Bal. Y

Centre N

Diag. N

28

CONFIGURING THE

DSP8000

LOUDSPEAKERS

Configuring the sources

When the master DSP8000 loudspeaker is set to one of the standard Types
the 12 source selection keys on the remote select inputs D1 and D2 as
shown in the table on page␣ 30.

If the configuration you want is not catered for by one of the standard
settings, you can configure each source individually.

The DSP loudspeakers provide 12 sources corresponding to the 12 source
selection keys on the remote:

CD, Radio, LP, TV, Tape1, Tape2, CDR, Cable, DVD, VCR1, VCR2, and
LD.

For each source you can configure:

•

The label used for it on the front panel display, from a range of
alternative labels.

•

The digital input it selects.

•

The comms type and address, to identify other Meridian 500 Series
equipment.

•

Other advanced options.

You only need to configure the sources on the DSP loudspeaker you have
specified as the master.

To configure a source

While in configuration mode:

• Press the source key on the remote corresponding to the source you
want to configure.

For example, to configure the Radio
source the display initially shows:

• Press > or < to step between options.

The right-hand set of characters shows the current value of the option.

• Press A or V to change the value of the option.

When you have finished programming sources:

• Switch off at the back panel, and then switch on again to restore normal
operation.

RD Radio

29

CONFIGURING THE

DSP8000

LOUDSPEAKERS

The options are summarised in the table below:

Option Initial value Alternatives Explanation

Label

Audio input

Comms type

Address

FIFO

Radio

D1

2C

1A

FF. Y

CD, Radio, LP, The label used to identify the
etc. source on the front-panel display.

D1 or D2. Choose D1 or D2 to specify the

input.

1C – 9C, or NC. Choose 1C for a Meridian CD

player, 2C for a Meridian FM
Tuner, 3C for a Meridian DVD
player, or NC otherwise.

1A – 8A. Allows you to have up to eight

of each source type.

Y or N. Choose N to disable the FIFO

buffer if you have difficulty
locking to a poor source.

30

CONFIGURING THE

DSP8000

LOUDSPEAKERS

Configuring the setup options

The setup option allows you to add a tilt offset to the centre speaker. You
only need to configure the master loudspeaker.

To select Setup mode

• Turn off the DSP8000 loudspeaker using the power switch on the back
panel.

• Turn on the power again while holding down the Store key on the
remote.

The display will show:

It will then revert
to standby:

You can now operate the speaker in the usual way, using the additional
setup menu to adjust the response while listening to sources.

When you have finished adjusting the setup options:

• Switch off at the back panel, and then switch on again to restore normal
operation with the setup you have programmed.

Setup

.

To adjust the centre tilt offset

If your system includes a DSP centre speaker you should set Centre Y on the
master speaker. An additional centre tilt offset option is then provided to
allow you to add a tilt offset to the centre speaker.

• Press > or < until the display shows the current centre tilt offset.

For example:

C.Tilt+1

• Press A or V to adjust the centre tilt offset.

The Centre tilt offset is added to the Tilt value for the selected source.
The recommended setting is -1dB.

31

CONFIGURING THE

DSP8000

LOUDSPEAKERS

To store the settings

Once you have adjusted the centre tilt offset you should store the setting
using the following procedure:

• Press the Store key on the remote.

The display shows:

• Turn off the DSP8000 loudspeaker using the power switch on the back
panel.

When you turn on the power again the speaker will operate normally with
the setting you have stored.

Store

32

Troubleshooting

This chapter provides suggested solutions to typical problems that

may occur when setting up the DSP8000 loudspeakers.

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.

CD RADIO LP TV TAPE 1 TAPE 2 CDR CABLE

123

Angle Audio A-B Phase

456

T

789

Function 0 Title

Chapter

33

DVD

OSD

Slow

EnterReturn

VCR 1 VCR 2 LD

Repeat

Record

Store

Subtitle

Clear

Menu Volume

Setup

Preset

Display

Band

Off

Mute

TROUBLESHOOTING

Troubleshooting

Display on front panel not lit

Check the following:

•

There is AC power connected to the socket on the back of the DSP8000
loudspeaker.

•

The power switch on the back panel of the DSP8000 loudspeaker is
turned on.

If the display will still not illuminate, check any fuses in your power supply
and the fuse in the inlet of the DSP8000 loudspeaker. If these are all intact,
contact your dealer.

Remote not working

Check the following:

•

The battery in the Meridian System Remote.

•

See if the DSP8000 loudspeaker has been set up as not controller in the
Meridian Configuration program; see Configuring the setup options,
page 31. Note that this may be deliberate by your dealer.

Unit goes silent when played hard

•

The DSP8000 loudspeakers have a temperature sensing system on board,

which prevents overheating of the electronics. The sound will continue
when the speaker has cooled.

There is radio interference

The DSP8000 loudspeaker is a digital audio and computing device which
has been designed to very high standards of electromagnetic compatibility.

If this equipment does cause or suffer from interference to/from radio or
television reception then the following measures should be tried:

•

Reorient the receiving aerial (or antenna) or route the antenna cable of
the receiver as far as possible from the DSP8000 loudspeaker and its
cabling.

•

Ensure that the receiver uses well-screened antenna cable.

•

Relocate the receiver with respect to the DSP8000 loudspeaker.

•

Connect the receiver and this product to different AC outlets.

•

If the problem persists contact your dealer.

34

TROUBLESHOOTING

Drive units move when the speaker is switched on or
off

•

This is normal as the speaker active electronics settle.

Configuring the DSP8000 loudspeaker does not have
any effect

Make sure that you are configuring the DSP8000 loudspeaker used as the
master digital loudspeaker in the system. This determines the configuration
of all digital loudspeakers in the system.

Unit stays in standby

•

Check that it is connected correctly.

•

Turn the system on from another Meridian product in the system.

Only the master loudspeaker plays

•

Check the S5 cables are connected correctly.

Sound is odd or mono

•

Check that the DSP8000 loudspeakers are correctly configured as Left
and Right respectively.

The yellow indicator flashes or stays on

This indicates that DSP clipping is occurring.

Brief flashes indicate occasional clipping which will not be audible.

If the indicator stays on for long periods this may indicate a fault in the
configuration of your system, and you should contact your Meridian dealer.

35

TROUBLESHOOTING

Maintenance and cleaning

Fitting and removing the grilles

When fitting the grilles ensure that the two cutouts are at the 3 o‘clock
and 9 o‘clock positions, as this will align the pattern on the grille fabric
correctly.

To remove the grilles grasp the grille by the two cutouts and pull gently
away from the loudspeaker.

Cleaning

Small marks on the lacquer surface can usually be removed by treating with
Black Turtle Wax Color Magic.

Do not use any coarse polish such as Auto Colour Restorer, and always test
any polish on a non-visible area first. Do not use any polish containing a
solvent; these can cause crazing of the surface.

Deeper scratches can be removed by treating with additional polyester
lacquer filler and then polishing carefully. Consult your authorised
Meridian dealer for advice before attempting any repair.

36

TROUBLESHOOTING

Service and guarantee

Service

The Meridian 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 DSP loudspeaker fails to function correctly,
it should be returned, in its original packaging, to your Meridian dealer.

In case of difficulty within the UK or USA please contact the appropriate
sales and service address shown on page ii.

In case of difficulty outside the UK or USA, contact the importing agent for
the territory. A list of Meridian agents abroad is available from Meridian
Audio.

No responsibility can be accepted for the DSP8000 loudspeakers whilst in
transit to the factory or an agent, and customers are therefore advised to
insure the unit. When seeking service under guarantee, proof of the date
of purchase will be required.

Guarantee

The DSP8000 Loudspeakers are guaranteed against defects in material and
workmanship for two years from the date of purchase.

The guarantee is void if the DSP8000 Loudspeakers have 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.
Note that connecting anything other than the correct network lead to the
COMMS sockets may cause damage to the DSP8000 Loudspeakers which
will not be covered by this guarantee. Attempted servicing by unauthorised
people may also invalidate this guarantee. Labour and carriage charges are
not covered unless by local agreement.

Outside the UK, local warranty liability is restricted to equipment
purchased within the territory. Our agents abroad are only under
contractual obligation to service under guarantee equipment sold through
them. They are entitled to make a non-refundable charge for any service
carried out on other equipment.

This guarantee does not limit your statutory rights within the United
Kingdom.

37

TROUBLESHOOTING

38

Index

A

absolute phase, changing 23
accessories 8
axis, changing 24

B

back panel 14
balance, changing 24
bass, changing 23

C

centre tilt offset, adjusting 31
cleaning 36
COMMS INPUT 14
COMMS OUTPUT 14
communications connections 14
components 10
configuration options 28

balance control 28
centre menus 28
communications mode 28
controller mode 28
diagnostic displays 28
position and master/slave 28
product address 28
system address 28
volume mode 28

configuring setup options 31
configuring sources 29

address 30
audio input 30
comms type 30
FIFO 30
label 30

configuring the loudspeakers 28
connecting the loudspeakers 14
connecting to other equipment 15
connections 14

COMMS INPUT 14
COMMS OUTPUT 14
communications 14

connections (continued)

digital inputs 14
digital output 14
RS232 14

D

digital inputs 14
digital output 14
digital signal processing 2
dismantling the loudspeakers 11
display, changing 21
drive units 3

tightening 11

G

grilles, fitting and removing 36
guarantee 37

L

lacquer finish 11

polishing 36

listening position, changing 24

M

maintenance 36
master, selecting 27
Meridian comms 4
Meridian Digital Music System 5
Meridian Digital Theatre™ 5
Meridian High Resolution (MHR) 3
muting the sound 22

P

positioning the loudspeakers 13

R

radio interference 12, 34

S

safety warnings 13
sample configurations

Meridian Digital Music System 5
Meridian Digital Theatre™ 5

39

selecting a source 20
service 37
settings, storing 32
Setup mode, selecting 31
setup options, configuring 31
slave, selecting 27
sources 20

configuring 29
selecting 20

speaker position, specifying 27
specification 6
standard settings, selecting 26
standby, switching to 20
status indicators 21
storing settings 32
switching to standby 20

T

Tightening the drive units 11
tilt, changing 23
troubleshooting 33

U

unpacking 10

V

volume 22

adjusting 22
muting 22

40