Meridian DSP Loudspeaker User Guide
ii Preface 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. • Do not disassemble – no user-servicable parts inside.
iii Contents Contents Introduction 1 Configuring the DSP loudspeakers 27 Meridian DSP loudspeakers 2 Choosing standard settings 28 Sample configurations 4 Specifying information about your system 30 DSP5200 and DSP5200HC 7 Configuring the sources 33 Unpacking 8 Troubleshooting 35 Troubleshooting 36 Cleaning 37 Service and guarantee 38 Index 39 Specifications 10 DSP7200 and DSP7200HC 11 Unpacking 12 Specifications 14 Connecting up the DSP loudspeakers 15 Connecting the
iv Preface Copyright and acknowledgements Sales and service in the UK Meridian Audio Ltd Latham Road Huntingdon Cambridgeshire PE29 6YE England Tel (01480) 445678 Fax (01480) 445686 Sales and service in the USA Meridian America Inc. 110 Greene Street, Suite #407 New York NY 10012 USA Tel (646) 66 0140 Fax (646) 66 0152 Designed and manufactured in the UK Meridian Audio Ltd Latham Road Huntingdon Cambridgeshire PE29 6YE England Visit us on the Web http://www.meridian-audio.
Introduction Introduction Welcome to the Meridian DSP loudspeaker range. This user guide provides full information about using the DSP loudspeakers in conjunction with your other equipment, to achieve the superb results you can expect from them.
Introduction Meridian DSP loudspeakers Meridian DSP loudspeakers represent the fruits of more than 30 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 range of home loudspeakers. DSP loudspeaker drivers Digital Signal Processing Standard models use long-throw bass units and a very high quality 25mm (1") Meridian treble unit.
Introduction The DSP7200 cabinet is fabricated from curved pressure-laminated panels, using multiple layers of selected woods and metal to achieve high stiffness and damping. Its narrow tapered shape gives optimum dispersion over a wide listening area. components. These incorporate a sophisticated communications link, called Meridian Comms, 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.
Introduction Sample configurations Meridian Digital Theatre™ DSP7200 DSP7200 DSP3200 DSP3200 DSP7200HC 861 Reference Digital Surround Controller HD621 HDMI Audio Processor Up to eight Meridian DSP loudspeakers can be used in conjunction with a Meridian surround controller, such as the 861 Reference Digital Surround Controller, to create a digital surround system with superb music and cinema sound.
Introduction Meridian Digital Music System DSP5200 DSP5200 808 Signature Reference CD Player Meridian DSP loudspeakers include DSP volume and tone controls, and be connected directly to digital sources, such as the 808 Signature Reference CD Player, to create an compact high-quality music system.
Introduction
DSP5200 and DSP5200HC DSP5200 and DSP5200HC This chapter explains how to unpack and install the DSP5200 and DSP5200HC, and gives specifications.
DSP5200 and DSP5200HC Unpacking Before you begin installation you should ensure that your DSP 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 DSP loudspeakers, or to any other component in your system, while the AC power supply is connected and switched on.
DSP5200 and DSP5200HC Once the speakers are upright in their playing positions adjust the spikes until the loudspeakers are stable and tighten the lock nuts to prevent the spikes moving in the cabinet. On solid floors that can be damaged by the spike the foot should be adjusted so that the spike does not protrude through the puck, leaving the puck to support the weight of the loudspeaker. Lock the spike in place with the lock nut, and screw the puck on firmly.
10 DSP5200 and DSP5200HC Specifications Connections Characteristics • Meridian SpeakerLink (RJ45) input and output, providing balanced digital audio, Meridian Comms, and serial interface. • Digital co-axial input and output. • Meridian BNC Comms input and output. • • • • • Signal processing • 1 x Freescale 56367 running at 150MHz. • Special Edition: 2 x Freescale 56367 running at 150MHz. • 2 x 24-bit Multi-bit delta-sigma DACs with 128x oversampling. • Crossover minimum-phase at 2.6kHz.
11 DSP7200 and DSP7200HC DSP7200 and DSP7200HC This chapter explains how to unpack and install the DSP7200 and DSP7200HC, and gives specifications.
12 DSP7200 and DSP7200HC Unpacking Before you begin installation you should ensure that your DSP loudspeakers are the correct voltage for your local AC supply. If they are not, do not try to install them, and contact your dealer. 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 Cleaning, page 37.
13 DSP7200 and DSP7200HC Use the supplied wrench to remove this cover plate before making any connections: To remove the grilles (DSP7200) The grilles are deliberately designed to fit tightly to avoid vibration during operation, and they should be removed using the following procedure to avoid damaging the loudspeaker. The grille consists of elastic material stretched tightly over a plastic ring.
14 DSP7200 and DSP7200HC Specifications Connections Characteristics • Meridian SpeakerLink (RJ45) input and output, providing balanced digital audio, Meridian Comms, and serial interface. • Digital co-axial input and output. • Meridian BNC Comms input and output. • Distortion: typically <0.02% up to full power. • Noise and hum: <-94dBr at all volume settings. • Acoustic output: typically >112dB spl @ 1m on music material. • Acoustic noise: <15dB spl @ 1m.
15 Connecting up the DSP loudspeakers Connecting up the DSP loudspeakers This chapter explains how you should connect your DSP loudspeakers to the other audio equipment in your system.
16 Connecting up the DSP loudspeakers Connecting the loudspeakers Back panel The following diagram gives details of the back panel connections: MERIDIAN SPEAKERLINK INPUT OUTPUT Meridian SpeakerLink connections MERIDIAN COMMS INPUT OUTPUT Meridian BNC Comms connections DIGITAL INPUT OUTPUT Digital co-axial connections You can connect to the DSP loudspeakers using either the SpeakerLink connectors, or the Meridian BNC Comms and digital co-axial connectors.
17 Connecting up the DSP loudspeakers Connecting to other equipment To connect to a Meridian product using SpeakerLink (home run) 808 Signature Reference CD Player Front R – Slave MERIDIAN SPEAKERLINK Front L – Master MERIDIAN SPEAKERLINK MERIDIAN SPEAKERLINK INPUT OUTPUT INPUT OUTPUT SpeakerLink lead You can create a complete system by connecting a pair of DSP loudspeakers directly to a digital source.
18 Connecting up the DSP loudspeakers To connect to a Meridian product using SpeakerLink (daisy chain) 808 Signature Reference CD Player Front R – Slave MERIDIAN SPEAKERLINK Front L – Master MERIDIAN SPEAKERLINK MERIDIAN SPEAKERLINK INPUT OUTPUT INPUT OUTPUT SpeakerLink lead 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 an MSR+.
19 Connecting up the DSP loudspeakers To connect to a Meridian product with BNC Comms G Series CD Player or Control Unit DIGITAL OUTPUT BNC COMMS Digital/BNC lead Front R – Slave Front L – Master MERIDIAN SPEAKERLINK MERIDIAN COMMS DIGITAL MERIDIAN SPEAKERLINK MERIDIAN COMMS DIGITAL INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT SpeakerLink lead If the Meridian source or control unit provides a Meridian BNC Comms output, you will need to connect it to the D
20 Connecting up the DSP loudspeakers Auto configuration Positioning the digital loudspeakers In a system of Meridian products one of the products acts as the controller for the system. It receives infra-red commands from the MSR+ and then, if appropriate, relays them to the other products in the system via the Comms link. For best results adjust the position of the loudspeakers while listening to music.
21 Using the DSP loudspeakers Using the DSP loudspeakers In systems with a Meridian surround controller all of the functions of the DSP loudspeakers, including volume, treble, and bass, are operated via the controller. For more information refer to the user guide for the surround controller, and you can ignore this chapter. The DSP loudspeakers can also be connected directly to up to two digital sources to create a complete, minimum system.
22 Using the DSP loudspeakers Selecting a source When not playing, the DSP 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 DSP loudspeakers for several days you should switch each unit completely off at the back panel, and disconnect it from the AC power supply.
23 Changing the display The DSP 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.
24 Using the DSP loudspeakers Adjusting the volume The DSP 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 DSP 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 A or V volume keys on the remote.
25 Using the DSP loudspeakers Changing the treble, bass, or phase The DSP loudspeakers provide sophisticated treble 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.
26 Using the DSP loudspeakers Changing the listening position The balance control of the DSP loudspeakers uses digital signal processing to compensate for an offcentre 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 DSP loudspeakers, like a balance control operating in the vertical plane.
27 Configuring the DSP loudspeakers Configuring the DSP loudspeakers This chapter explains how to configure the DSP loudspeakers to suit the other equipment in your system. The first stage in configuring the DSP 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.
28 Configuring the DSP loudspeakers Choosing standard settings The DSP loudspeakers provide the following five alternative standard settings, called Types, which configure all aspects of the DSP loudspeakers into the most commonly needed configurations: • Release the remote key. The display will show: L.M.RJ45 You should now specify the speaker’s position as follows. Type Description 1 Standard setting for 2-channel system.
29 Configuring the DSP loudspeakers Initially all sources will be configured to use the primary input you have specified, but you can configure individual sources to use the other input; see To configure a source, page 33. For example, to define the left speaker as a Slave using the digital co-axial connectors: The display shows: L.S.Coax When you have configured the loudspeaker: • Switch off the DSP loudspeaker, using the power switch on the back, and then switch on again to restore normal operation.
30 Configuring the DSP loudspeakers Specifying information about your system You can configure the operation of the DSP 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 To select a standard setting, page 28.
31 Configuring the DSP loudspeakers To specify the loudspeaker position The frequency response of each loudspeaker can be individually tailored to compensate for its position in the room, or to integrate the sound with a subwoofer where no surround controller is present. Option Pos.Corn Speaker closer than 0.5m (20") to a corner. Pos. SL Frequency response controlled via SpeakerLink. For multichannel systems with a surround controller we recommend each speaker is configured individually.
32 Configuring the DSP loudspeakers To specify the ambient temperature for thermal protection The DSP 7200 drive units are protected from overheating by thermal protection software. This is already configured correctly for most domestic listening environments, but if the ambient temperature is greater than 24°C (75°F) you should adjust the ambient temperature setting. • Press > or < until the display shows the current ambient temperature setting.
33 Configuring the DSP loudspeakers Configuring the sources The DSP loudspeakers provide 12 sources corresponding to the 12 source selection keys on the remote: To configure a source CD, RADIO, DVD, AUX, DISC, TAPE, TV, CABLE, SAT, VCR1, VCR2, and GAME. • Press the source key on the remote corresponding to the source you want to configure. If the configuration you want is not catered for by one of the standard settings, you can configure each source individually.
34 Configuring the DSP loudspeakers
35 Troubleshooting Troubleshooting This chapter provides suggested solutions to typical problems that may occur when setting up the DSP 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.
36 Troubleshooting Troubleshooting Display on front panel not lit There is radio interference • Check the display mode by pressing DISPLAY on the MSR+. • Check there is AC power connected to the socket on the back of the DSP loudspeaker. • Check the power switch on the back panel of the DSP loudspeaker is turned on. The DSP loudspeaker is a digital audio and computing device which has been designed to very high standards of electromagnetic compatibility.
37 Cleaning Cleaning Small marks on the lacquer surface can usually be removed with a damp cloth. 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.
38 Troubleshooting Service and guarantee Service The Meridian components have been carefully designed to give years of untroubled service. There are no userserviceable parts inside the case, nor do the units require any form of maintenance, apart from tightening the drive units as described in this user guide. In the unlikely event that your DSP loudspeaker fails to function correctly, it should be returned, in its original packaging, to your Meridian dealer.
39 Index A Index connections absolute phase, changing 25 accessories 3 ambient temperature, specifying 32 auto configuration 20 axis, changing 26 B Meridian Digital Theatre™ 4 digital co-axial 16 Meridian High Resolution (MHR) 3 SpeakerLink 16 mounting options 3 D digital connections 16 configuring 28 balance, changing 26 bass, changing 25 BNC Comms 16 configuring 28 connecting with 19 configuring 31 centre frequency response, configuring 32 input 16 output 16 communications connections 16 con
40 Index specifications DSP5200 and DSP5200HC 10 DSP7000 and DSP7200HC 14 standard settings, configuring 28 standby, switching to 22 status indicators 23 switching to standby 22 T temperature, specifying 32 tightening the drive units DSP5200 and DSP5200HC 9 DSP7200 and DSP7200HC 13 tilt offset, configuring 32 treble, changing 25 troubleshooting 35 U unpacking DSP5200 and DSP5200HC 8 DSP7000 12 V volume adjusting 24 muting 24
