Meridian DSP Loudspeaker User Guide ii Preface Important safety instructions • Read the instructions. To avoid overheating • Keep these instructions. • Follow all instructions. • Leave at least 10cm around the equipment to ensure • Do not use this apparatus near water. sufficient ventilation. • Clean only with a dry cloth. Do not position the unit: • Install only in accordance with the manufacturer’s instructions. • In direct sunlight. • Refer all servicing to approved service personnel. • Near heat sources, such as a radiator. • Do not disassemble – no user-servicable parts inside. • Directly on top of heat producing equipment. This apparatus has been designed with Class 1 To avoid interference construction and must be connected to a mains socket outlet with a protective earthing connection (the third Do not position the unit: grounding pin). • Near strong electrical or magnetic radiation, such as The apparatus may be isolated from mains power either near a power amplifier. by unplugging the power connector from the rear of the unit, or by unplugging the connector at the opposing Radio interference end of the power cord or cable from its supply outlet. FCC Warning: This equipment generates and can As a result, either or both of these connectors should radiate radio frequency energy and if not installed and remain accessible. used correctly in accordance with our instructions may cause interference to radio communications or radio Safety warnings and television reception. It has been type-tested and WARNING: TO REDUCE THE RISK OF FIRE OR complies with the limits set out in Subpart J, Part 15 of ELECTRIC SHOCK, DO NOT EXPOSE THIS FCC rules for a Class B computing device. These limits APPARATUS TO RAIN OR MOISTURE. are intended to provide reasonable protection against such interference in home installations. • Do not expose the unit to dripping or splashing. • Do not place any object filled with liquid, such as a EEC: This product has been designed and type-tested vase, on the unit. to comply with the limits set out in EN55013 and • Do not place naked flame sources, such as lighted EN55020. candles, on the unit. iii Contents Contents Introduction 1 Using the DSP loudspeakers 27 Meridian DSP loudspeakers 2 Selecting a source 28 Sample configurations 4 Changing the display 29 Adjusting the volume 30 DSP5200 and DSP5200HC 7 Changing the treble, bass, or phase 31 Unpacking 8 Changing the listening position 32 Specifications 10 Configuring the DSP loudspeakers 33 DSP5500, DSP5500HC, and DSP5500C 11 Choosing standard settings 34 Unpacking 12 Specifying information about your system 36 Specifications 14 Configuring the sources 37 DSP7200 and DSP7200HC 15 Configuring the setup options 38 Unpacking 16 Troubleshooting 41 Specifications 18 Troubleshooting 42 Connecting up the DSP loudspeakers 19 Cleaning 43 Connecting the loudspeakers 20 Service and guarantee 44 Connecting to other equipment 21 Index 45 Positioning the digital loudspeakers 25 iv Preface Copyright and acknowledgements Sales and service in the UK MHR: This product incorporates copyright protection technology covered by certain patent applications Meridian Audio Ltd and intellectual property of Meridian Audio Ltd. This Latham Road technology is provided for the express purpose of Huntingdon securely containing copyright audio within the Meridian Cambridgeshire System only. Reverse engineering or circumvention of PE29 6YE this protection is strictly prohibited. England This guide was produced by: Tel (01480) 445678 Human-Computer Interface Ltd, Fax (01480) 445686 http://www.interface.co.uk Sales and service in the USA Meridian America Inc 8055 Troon Circle Suite C Austell GA30168-7849 USA Tel (404) 344 7111 Fax (404) 346 7111 http://www.meridian-audio.com Designed and manufactured in the UK Meridian Audio Ltd Latham Road Huntingdon Cambridgeshire PE29 6YE England Copyright © 2002-2010 Meridian Audio Ltd. Part no: DSPU/8 (P86499) Meridian Digital Theatre, Meridian Lossless Packing, MHR and MLP are registered trademarks of Meridian Audio Ltd. 1 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. 2 Introduction Meridian DSP loudspeakers Meridian DSP loudspeakers represent the fruits of DSP loudspeaker drivers more than 25 years of continuous development of loudspeakers as musical instruments. The finest Each DSP loudspeaker uses multiple high-efficiency materials and state-of-the-art design are combined to long-throw custom bass drive units. create what we believe is the ultimate range of home Each treble unit is a very high quality 25mm (1") loudspeakers. Meridian piston in a short horn, using an aluminium dome with a silver voice-coil. It is extremely well Digital Signal Processing matched to the woofers, and also tonally very Digital Signal Processing, or DSP, is a technique compatible with the other drivers employed in the pioneered by Meridian in hi-fi products for achieving Meridian range. extremely accurate reproduction of audio signals using high-precision mathematical processing. Power amplifiers DSP allows sophisticated processing to be performed The speakers are driven by multiple independent high- without any of the cumulative noise or degradation power, low-feedback power amplifiers. The combination that inevitably occurs, even with high-quality analogue of idealised magnetic design, careful star earthing, and circuitry. In addition, the signal improvement techniques very fast output devices gives the amplifiers extremely incorporated in the Meridian DSP loudspeakers would low noise, high detail, and fast bass. be virtually impossible to implement in the analogue The whole electronic assembly is supplied from domain. substantial toroidal transformers feeding high-quality, The Meridian DSP loudspeakers take advantage of audiophile-grade capacitors. DSP for several different functions: Cabinet • To remove timing variations from the incoming digital signals (de-jittering). Each DSP loudspeaker is carefully designed with • To split the audio frequency band between bass, mid- internal bracing and damping to give incredibly low range, and treble drivers (crossover). levels of cabinet resonance, resulting in low coloration • To perform filtering or adjustment of the frequency and excellent mid-range transparency. response; eg treble or bass. The DSP5200 and DSP5200HC are constructed • To provide volume control to 48-bit precision. using veneered plywood, braced and resin damped to • To provide digital protection of the loudspeakers produce an ultra-rigid cabinet. against high-level low-frequency transients. • To perform electronic equalisation. The DSP5500, DSP5500C, and DSP5500HC are constructed using thick veneered MDF sides bolted If you are using the Meridian DSP loudspeakers with a through a 1.5mm steel plate onto the main cabinet, digital source, such as CD or DVD, the signals remain giving extremely low levels of cabinet resonance and in digital form until the last possible stage. excellent bass-mid isolation. 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 3 Introduction dispersion over a wide listening area. Each cabinet remote, and ensure that they will work together as a stands on three adjustable machined feet which can be fully integrated system. fitted with spikes or skids. The Meridian SpeakerLink connectors provide both Mounting options Meridian Comms control and two-channel balanced digital audio in a single convenient SpeakerLink lead. In addition to the main vertical speakers, designed for Meridian Comms also allows you to extend your hi- use as the left/right speakers in a system, each model fi system into two or three rooms, with the ability to includes a single horizontal centre and/or a single control the sources in one room from the controller in vertical centre, designed for use as the centre speaker another room. in a surround system. The following page shows two recommended The DSP5200HC, DSP5500HC, and DSP7200HC configurations based on the Meridian DSP are horizontal centre versions, designed for use either loudspeakers to illustrate the flexibility of Meridian above or below a television. components. The DSP5500C is a vertical version, designed for use as a centre speaker, and it uses fully shielded drive Available accessories units so they it be placed next to a television without Other applications, and some advanced features, may interference. require one or more of the following accessories, which Meridian High Resolution (MHR) can be purchased from your Meridian dealer: • MSR+ remote. All Meridian DSP loudspeakers support Meridian High • Interconnecting leads. Resolution (MHR), to allow you to connect to other • AC11 SpeakerLink Hub, to allow interconnection MHR-compliant Meridian products to take advantage between newer products with SpeakerLink of high-rate audio sources, and provide the additional connectors, and products with Meridian BNC Comms benefits of lower jitter and improved sound quality on all or Meridian DIN Comms connectors. sources. MHR is a proprietary secure encoding format that uses encryption and anti-copy methods to provide a secure copyright protection environment, and allow the secure transfer of audio streams within a Meridian-only system for playback only. Meridian Comms