Meridian DSP320.2 User manual

USER GUIDE
DSP320.2 DSP LOUDSPEAKER

DSP320.2 DSP Loudspeaker User Guide
ii
Important safety instructions
Read the instructions.
Keep these instructions.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a dry cloth.
Install only in accordance with the manufacturer’s instructions.
Refer all servicing to approved service personnel.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR
MOISTURE.
This apparatus has been designed with Class 1 construction
and must be connected to a mains socket outlet with a
protective earthing connection (the third grounding pin).
This apparatus uses a single-pole power switch. As a result it is
not isolated from AC mains power when switched off at the rear
panel. The apparatus may be isolated from mains power either
by unplugging the power connector from the rear of the unit, or
by unplugging the connector at the opposing end of the power
cord or cable from its supply outlet. As a result, either or both
of these connectors should remain accessible.
•
•
•
•
•
•
•
Safety warnings
WARNING!
RISK OF ELECTRIC SHOCK – DO NOT OPEN
ATTENTION!
NE PAS OUVRIR – RISQUE DE DÉCHARGE ÉLECTRIQUE
Caution: to reduce the risk of electric shock, do not remove
cover. No user serviceable parts inside. Refer servicing to
qualified service personnel.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
 

DSP320.2 DSP Loudspeaker User Guide iii
Climate
The equipment has been designed for use in moderate climates
and in domestic situations.
≤2000m

Only use at an altitude not exceeding 2000m.
Safety warnings
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 overheating
Do not position the product in direct sunlight.
Do not position the product near heat sources, such as a
radiator.
Do not position the product on a soft surface such as a
carpet.
Leave at least 10cm around the product to ensure sufficient
ventilation.
•
•
•
•
•
•
•
To avoid interference
Do not position the unit near strong electrical or magnetic
radiation, such as near a power amplifier.
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 EN55032:2015 and
EN55024:2010 + A1:2015.
•

DSP320.2 DSP Loudspeaker User Guide
iv
Copyright and acknowledgements
Sales and service in the UK
Meridian Audio Ltd, Latham Road, Huntingdon,
Cambridgeshire, PE29 6YE, England.
Tel [phone]
Email [email protected]
Designed and manufactured in the UK
Meridian Audio Ltd, Latham Road, Huntingdon,
Cambridgeshire, PE29 6YE, England.
Meridian Audio reserves the right to make changes and
improvements to any of the products described in this document
without prior notice.
Copyright © 2019 Meridian Audio Ltd.
Part no: P88470
Visit us on the Web
www.meridian-audio.com
Product registration
Register your DSP320.2 DSP Loudpeaker at:
www.meridian-audio.com/register

DSP320.2 DSP Loudspeaker User Guide v
Contents
Introduction 1
Specifications 3
Installing the DSP320.2 DSP Loudspeaker 4
Front and back panel 7
Setting up the DSP320.2 DSP loudspeaker 9
Applications 10
RS232 commands 18
Index 25

DSP320.2 DSP Loudspeaker User Guide 1
Introduction
The DSP320.2 is perfect for delivering high-quality music
discreetly in any living or cinema room, whether used in stereo
systems, full surround sound set-ups, single-loudspeaker
installations, or multi-speaker listening zones.
It features one “racetrack” oval bass driver and one 85mm
wide-range driver for full-frequency response, each driven by an
80W power amplifier, making it capable of delivering full-range
sound at in excess of 106dB at one metre, with bass extension
down to 50Hz.
Acoustics
The DSP320.2 has been designed for maximum dispersion and
wide listening area plus minimum unwanted diffraction.
Each drive unit is powered individually by a dedicated low-
distortion 80W Class-D amplifier.
L+R mode allows a single loudspeaker to be used on its
own while still reproducing all the audio present in a stereo
recording. In addition, L+R mode makes multiple DSP320.2s a
great choice for larger areas with no specific listening position.
On-board DSP
On-board DSP provides thermal and dynamic bass protection
while retaining very accurate transients, ensuring that when
the loudspeaker is played at high levels – even over prolonged
periods of time – it always delivers a clean, detailed and
accurate sound.
Enhanced Bass Alignment (EBA)
Meridian’s innovative Enhanced Bass Alignment (EBA) uses two
different technologies to time-align high, mid, and upper bass
frequencies with the low bass, resulting in audibly improved
bass transients and added life and clarity.
Enhancement technologies
Meridian’s unique suite of proprietary technologies includes
FIFO buffering, DSP upsampling, apodising filters, and MHR
(Meridian High Resolution) to get the very best performance
from all digital sources.
Construction
The DSP320.2 is designed to have an elegant profile, with only
100mm installation depth.
It is constructed from a self-contained, all-metal enclosure.
A purpose-built rough-in wall-box is available separately. The
rough-in box is first fitted to the wall, and the loudspeaker
enclosure is then bolted to the rough-in box. The loudspeaker
is supplied with a trim frame which can optionally be fitted

DSP320.2 DSP Loudspeaker User Guide
2
according to the preferred finished appearance. The rough-in
box can be adjusted for various wall materials and depths.
The rough-in box is wired to mains power and the loudspeaker
carries a captive IEC mains lead which plugs into the mains
outlet socket on the rough-in box.
The paintable, perforated steel grille supplied with the
loudspeaker can be fitted where required. The grille is held in
place by powerful rubber-coated magnets which are attached
to the aluminium extrusion that forms the front panel of the
loudspeaker enclosure.
Controlling the loudspeaker
The loudspeaker can be controlled in three ways:
In most installations, the loudspeaker will be controlled by
another Meridian product within the system.
Alternatively, the loudspeaker features an infra-red receiver
which allows it to be controlled using a Meridian System
Remote.
Thirdly, the loudspeaker can be controlled using RS232
commands.
•
•
•

DSP320.2 DSP Loudspeaker User Guide 3
Audio input
1 x Meridian SpeakerLink connector (RJ45).
Audio output
1 x Meridian SpeakerLink connector (RJ45).
Drivers
Wide-range: 85mm with neodymium magnet.
Bass: 100mm x 150mm racetrack oval with polypropylene
cone.
Amplifiers
Wide-range driver: 1 x 80W Class D amplifier.
Bass driver: 1 x 80W Class D amplifier.
Performance
Peak SPL: 106dB @ 1m.
Bass extension: 50Hz.
•
•
•
•
•
•
•
•
Front panel
Switch selects Right, L+R, or Left or Centre.
IR window.
LED indicators show power status and configuration settings.
Physical
Dimensions*: 290mm x 290mm x 103mm (11.4" x 11.4" x
4.0") (H x W x D).
Weight: 5kg (11lb).
Grille dimensions: 292mm x 292mm x 4mm (11.4" x 11.4" x
0.16") (H x W x D).
Frame dimensions: 316mm x 316mm x 15mm (12.4" x 12.4"
x 0.6") (H x W x D).
* Excluding frame and cable feed channel.
Power
Flying IEC mains lead connects to mains socket on rough-in
wall box.
500W max.
100-240V AC, 50/60 Hz.
•
•
•
•
•
•
•
•
•
•
Specifications

DSP320.2 DSP Loudspeaker User Guide
4
Installing the DSP320.2 DSP Loudspeaker
The loudspeaker is designed to be fitted in a Meridian wall
box type RF300. If necessary, refer to the RF300 Wall Box
Installation Instructions :
https://www.meridian-audio.com/rf300-installation.pdf
Contents
Each DSP320.2 loudspeaker is supplied with the following
components:
Trim-frame.
Grille.
Fabric scrim.
3mm Allen key.
3mm hex-driver.
4 x M5 guide screws for installing into rough-in box.
2 x grille extractor keys.
1. Prepare the loudspeaker for installation
Remove the grille and scrim from the loudspeaker and put
them to one side for use later if required.
Remove the two plastic nuts and bolts used to retain the trim-
frame during shipping.
•
•
•
•
•
•
•
•
•
Remove the trim-frame.
The loudspeaker can be installed either with or without the trim-
frame according to the preferred final appearance.
Because of the weight of the loudspeaker and the method of
installation we recommend getting assistance from a second
person when installing the loudspeaker.
2. Identify the cables
If the speaker is part of a daisy-chain there will be two
SpeakerLink cables in the rough-in box. They must be
connected correctly or the system will not function.
Identify which cable is the SpeakerLink input cable and
which is the SpeakerLink output cable.
If there is only one SpeakerLink cable in the rough-in box it will
be a SpeakerLink input cable.
Identify the mains cable from the loudspeaker to the rough-in
box.
•
•
•

DSP320.2 DSP Loudspeaker User Guide 5
3. Install the loudspeaker
If the trim-frame is to be fitted, position
it on the back of the loudspeaker.
Set the power switch on the front of
the loudspeaker to the Off position.
Hold the loudspeaker close to the
rough-in box.
Plug the SpeakerLink input cable
into the SpeakerLink input socket
on the loudspeaker. If there is also a
SpeakerLink output cable plug it into
the SpeakerLink output socket on
the loudspeaker.
Plug the loudspeaker’s mains cable
into the mains inlet socket in the
rough-in box.
Insert the loudspeaker into the rough-
in box, taking care not to trap the
connecting cables in any way.
Fix the loudspeaker in place with the
four M5 x guide screws.
No additional fixings are required to
retain the trim-frame (if fitted).
•
•
•
•
•
•
•
Trim-frame
(optional)
4 x M5 guide screws

DSP320.2 DSP Loudspeaker User Guide
6
4. Set the front-panel switches
Set the channel selection switch
according to how the loudspeaker is
being used within the system.
Once the associated equipment
connected to the loudspeaker is powered
up:
Set the power switch on the front of
the loudspeaker to the On position.
5. Fit the scrim and grille – if
required
Lay the scrim into the back of the
grille.
Carefully locate one edge of the grille.
Lift the grille into position.
The magnets will grab the grille and hold
it in position.
•
•
•
•
•
Grille
Scrim
Magnet
positions

DSP320.2 DSP Loudspeaker User Guide 7
Front and back panel
Connections
The following diagram gives details of the connections on the
back of the loudspeaker:
SpeakerLink
output input
Power
Use this connection To connect to this
SpeakerLink input The SpeakerLink output of a Meridian
Controller or another loudspeaker when
connecting in a daisy-chain.
SpeakerLink output The SpeakerLink input of another
DSP320.2 loudspeaker when connecting
in a daisy-chain.
Use this connection To connect to this
Power A captive power cord to connect to the
RF300 rough-in box power outlet.
Front panel
The following diagram gives details of the front panel:
Right
L+R
Left or Centre
Fuse
~50-60Hz T5.0AH
250V for 100-230V~
CAUTION:
Disconnect supply before changing fuse.
Replace with same type fuse.
ATTENTION:
Débrancher avant de remplacer le fusible.
Utiliser un fusible de rechange
du même type.
On
Off
I
O
II
Channel
selector
Status indicator
and IR receiver
Fuse
Power
switch
Item Description
Channel selector Specifies the loudspeaker’s role in the
system. See Setting up the DSP320.2 DSP
Loudspeaker , page 9.
Power switch Controls the mains supply to the loudspeaker.

DSP320.2 DSP Loudspeaker User Guide
8
Standby indicator
Status Description
Blue Loudspeaker in standby.
White Loudspeaker operating.
At power-up flashes once if IR is off
and twice if IR is on.
The loudspeakers are switched on or into standby as
appropriate via the SpeakerLink connections by the Meridian
system they are connected to.
To configure the IR receiver
Hold down one of the following keys on an MSR remote (not
supplied) while powering up the speaker:
Next: Turns on IR; white LED flashes twice.
Previous: Turns off IR; white LED flashes once.
Stop: Resets all to factory settings; white LED flashes 3 times.

DSP320.2 DSP Loudspeaker User Guide 9
This section explains how to set up the loudspeaker in each of
the typical applications.
Using the loudspeaker on the left of the
system
Set the channel selector switch to Left or Centre.
In a multichannel system this applies to all loudspeakers on the
left-hand side of the room
Using the loudspeaker on the right of the
system
Set the channel selector switch to Right.
In a multichannel system this applies to all loudspeakers on the
right-hand side of the room
Using the loudspeaker to play a mix of left
and right audio
Set the channel selector switch to L+R.
This will play a balanced mix of left and right audio, allowing
a single loudspeaker to reproduce all the audio present in a
stereo recording. It also provides a useful option for systems
•
•
•
using multiple speakers where the listening area does not have
clearly-defined left and right loudspeaker positions.
Using the loudspeaker as a centre channel
Set the channel selector switch to Left or Centre.•
Setting up the DSP320.2 DSP loudspeaker

DSP320.2 DSP Loudspeaker User Guide
10
Applications
To connect an Audio Core 200 and DSW in a
2.1 system
The DSP320.2 loudspeakers are ideal for a compact home
entertainment system based on a Meridian Audio Core 200.
Connect analogue and digital sources, such as a TV and
satellite receiver, to the appropriate inputs on the AC200.
Connect the lower SpeakerLink output on the Audio Core
200 to the SpeakerLink input of the Master DSP320.2
loudspeaker, using a Meridian SpeakerLink lead.
Connect the upper SpeakerLink output on the Audio Core
200 to the SpeakerLink input of the DSW subwoofer, using a
Meridian SpeakerLink lead.
Connect the SpeakerLink output from the DSW subwoofer
to the Slave DSP320.2 loudspeaker, using a Meridian
SpeakerLink lead.
Set the Channel selector to the Left or Centre position on
the left DSP320.2 loudspeaker, to the Right position on the
right DSP320.2 loudspeaker, and to the 1+2 position on the
DSW subwoofer.
•
•
•
•
•
The subwoofer level and crossover are adjustable from the
AC200 menus.

DSP320.2 DSP Loudspeaker User Guide 11
Meridian Audio Core 200
TV
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
DSP320.2 – Master
DSP320.2 – Slave
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
Satellite Receiver
DIGITAL
OUT
ANALOGUE/
OPTICAL IN
DIGITAL
IN
OPTICAL
OUT
DSW – Subwoofer
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
SpeakerLink
leads
SPEAKERLINK
IN OUT

DSP320.2 DSP Loudspeaker User Guide
12
To connect a 218 to a single loudspeaker
The DSP320.2 loudspeaker can be used individually with a TV,
or in another single loudspeaker system, controlled by a 218
Zone Controller.
Connect the lower SpeakerLink output (labelled Master) on
the 218 Zone Controller to the DSP320.2, using a Meridian
SpeakerLink lead.
Set the Channel selector to the L+R position on the
DSP320.2.
Connect the Network socket from the 218 Zone Controller to
a LAN network connection on your Router, using CAT5 cable.
Connect the optical output of the TV to the optical input of
the 218.
Audio can be streamed to the system and controlled via the
Network socket on the 218.
•
•
•
•

DSP320.2 DSP Loudspeaker User Guide 13
SPEAKERLINK
OUT
NETWORK MERIDIAN
SPEAKERLINK
INPUT OUTPUT
DSP320.2
OPTICAL
IN
218 Zone Controller
Router
Network
TV
OPTICAL
OUT
SpeakerLink
lead

DSP320.2 DSP Loudspeaker User Guide
14
To use DSP320.2 loudspeakers in a Meridian
Digital Theatre
DSP320.2 loudspeakers are ideal as the front, rear, and centre
loudspeakers in a Meridian Digital Theatre, in conjunction with
a Meridian Digital Surround Controller such as the G65. The
following diagram shows how to connect the loudspeakers
using “home run” wiring.
Connect the L+R SpeakerLink output on the lower row
(labelled Master) of the G65 to the front left DSP320.2
loudspeaker, using a Meridian SpeakerLink lead.
Connect the appropriate SpeakerLink outputs on the G65
to each of the remaining loudspeakers, using Meridian
SpeakerLink leads.
Make sure the Channel selector on each DSP320.2 is
set to the Left or Centre position on the left and centre
loudspeakers and to the Right position on the right
loudspeaker.
Alternatively you can connect the loudspeakers using “daisy
chain” wiring: connect the front and rear L loudspeakers to
the G65, and then link each pair of loudspeakers together by
connecting the output from the L loudspeaker to the input of
the R loudspeaker.
•
•
•

DSP320.2 DSP Loudspeaker User Guide 15
Meridian Surround Controller
DSP320.2 – Centre DSP320.2 – Rear L
DSP320.2 – Rear R
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
DSP320.2 – Front L
DSP320.2 – Front R
MERIDIAN
SPEAKERLINK
INPUT OUTPUT
SpeakerLink leads
MERIDIAN
SPEAKERLINK