Meridian America DSP33 manuale d’uso

Meridian DSP 33 Digital Loudspeaker System user guide[...]

i Preface Meridian DSP33 Digital Loudspeaker System User Guide[...]

Preface ii Sales and service in the UK Meridian Audio Ltd Stonehill Stukeley Meadows Cambs PE18 6ED England Tel␣ ␣ (01480) 52144 Fax␣ ␣ (01480) 459934 World Wide Web http://www.meridian-audio.com Part no: DSP33 Sales and service in the USA Meridian America Inc 3800 Camp Creek Parkway Building 2400 Suite 122 Atlanta GA 30331 Tel␣ ␣ (404)[...]

iii Preface Contents Introduction 1 Introduces the DSP33 Digital Loudspeaker System, and gives guidelines and suggested layouts to help you plan your surround system. The DSP33 Digital Loudspeaker System ................................................... 2 Sample configurations ........................... 5 Specification and accessories ..........[...]

Preface iv Troubleshooting 35 Provides suggested solutions to typical problems. Troubleshooting ..................................... 36 Service and guarantee ........................... 39 Index ...................................................... 41 Configuring the DSP33 loudspeakers using a computer 23 Describes how to configure the digital lo[...]

Introduction 1 Intr oduction T he Meridian DSP33 Digital Loudspeaker System combines the latest acoustic and drive unit technology with multiple built-in power amplifiers and advanced high precision digital signal processing. The result is a speaker that produces extremely high-quality sound from a compact enclosure, and is ideal either as part of [...]

2 Introduction The DSP33 Digital Loudspeaker System incorporates the result of several years of research and development into innovative technologies. 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[...]

Introduction 3 Power amplifiers The speakers are driven by two high-power low-feedback power amplifiers. The combination of idealised magnetic design, careful star earthing, and very fast output devices give the amplifiers extremely low noise, high detail, and fast bass. The whole electronic assembly is supplied from a substantial torroidal transfo[...]

4 Introduction Meridian Comms The DSP33 Digital Loudspeaker System is 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[...]

Introduction 5 Sample configurations Meridian DVD Player DSP33 Meridian Surround Processor DSP33 DSP33 D1500 DSP33 rear DSP33 rear Meridian Digital Compact Theatre™ Five DSP33 loudspeakers can be used in conjunction with a Meridian Surround Processor to create a compact surround system with superb music and cinema sound. The DSP33 provides an unu[...]

6 Introduction DSP33 Digital Loudspeaker System Meridian DVD Player DSP33 DSP33 512 The DSP33 can be connected directly to almost any source that provides a PCM SPDIF output, including CD or DVD players, some PC soundcards, and digital satellite decoders. The DSP33 includes a DSP volume control, and with Meridian sources this operates seamlessly vi[...]

Introduction 7 Specification Digital inputs 2 x cable, 75 Ω , IEC958, 32-96kHz. FIFO locks at 44.1, 48, 88.2, or 96kHz ± 150ppm. 1 x digital output cable, 75 Ω, IEC958, providing a copy of the selected input. Processing 1 x Motorola 56364 running at 100MHz. Power amplifiers Low feedback complementary bipolar design, with output-stage error cor[...]

8 Introduction Available accessories The DSP33 is shipped ready to be used as the front speakers in a small Meridian Digital Theatre with a Meridian DVD Player (such as the 800 or 580) 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 ac[...]

Setting up the DSP33 Digital Loudspeaker System 9 Setting up the DSP33 Digital Loudspeaker System T his chapter explains how to install the DSP33 Digital Loudspeaker System. 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. Before you begin installa[...]

10 Setting up the DSP33 Digital Loudspeaker System Unpacking 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 compli[...]

Setting up the DSP33 Digital Loudspeaker System 11 Positioning the digital loudspeakers Safety warnings ❍ Do not expose the speakers to dripping or splashing. ❍ Do not place any object filled with liquid, such as a vase, on the speakers. ❍ Do not place naked flame sources, such as lighted candles, on the speakers. To avoid overheating Do not [...]

12 Setting up the DSP33 Digital Loudspeaker System 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 DSP33 at least 0.5m (20") from a corner. If the speakers are mounted on st[...]

Setting up the DSP33 Digital Loudspeaker System 13 Back panel Connecting the loudspeakers The following diagram gives details of the rear panel connections: MERIDIAN COMMS RS232 OUTPUT INPUT DIGIT AL OUTPUT INPUT 2 1 CHANNEL LEFT/ CENTRE RIGHT Comms Channel selection Digital inputs Digital output PC To reset the configuration of the digital loudspe[...]

14 Setting up the DSP33 Digital Loudspeaker System Digital connections The following table gives details of the digital audio inputs: Use this input To connect to this DIGITAL INPUT 1, A digital source, such as a digital DIGITAL INPUT 2 preamplifier, digital control unit, CD player or DVD player. DIGITAL OUTPUT A second (slave) DSP loudspeaker, usi[...]

Setting up the DSP33 Digital Loudspeaker System 15 To connect two DSP33 loudspeakers in a Meridian system DIGIT AL OUTPUT COMMS COMMS OUTPUT INPUT DIGIT AL INPUT OUTPUT 2 1 S5 lead DSP33 – Main R DSP33 – Main L 562V Multimedia Controller M5 lead COMMS OUTPUT INPUT DIGIT AL INPUT OUTPUT 2 1 CHANNEL CHANNEL You can connect two DSP33 loudspeakers [...]

16 Setting up the DSP33 Digital Loudspeaker System To connect three or more DSP33 loudspeakers in a Meridian surround system DSP33 Centre (master) DIGIT AL OUTPUTS COMMS S5 lead M5 lead S5 lead (digital unused) 568 Digital Surround Pr ocessor 511 S-patch box COMMS OUTPUT INPUT DIGIT AL INPUT OUTPUT 2 1 S5 lead DSP33 – Main R DSP33 – Main L COMM[...]

Setting up the DSP33 Digital Loudspeaker System 17 To connect two DSP33 loudspeakers to a Meridian CD Player or other digital source DIGIT AL OUTPUT COMMS COMMS OUTPUT INPUT DIGIT AL INPUT OUTPUT 2 1 S5 lead DSP33 – Main R DSP33 – Main L M5 lead COMMS OUTPUT INPUT DIGIT AL INPUT OUTPUT 2 1 CHANNEL CHANNEL 512 Remote Eye D5 lead 508.24 24-Bit CD[...]

18 Setting up the DSP33 Digital Loudspeaker System To use the DSP33 as a multimedia speaker with a PC The DSP33 can be controlled via its RS232 port using any terminal emulation software such as HyperTerminal. This allows you to control the volume, balance, phase, bass and tilt in addition to the advanced setup features described in the next chapte[...]

Using the DSP33 Digital Loudspeaker System 19 Using the DSP33 Digital Loudspeaker System I n systems with a Meridian preamplifier or control unit all of the functions of the DSP33, 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 [...]

Using the DSP33 Digital Loudspeaker System 20 When not playing, the digital 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 digital loudspeakers for several days[...]

Using the DSP33 Digital Loudspeaker System 21 The digital 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 digital loudspeakers the volume is set to 65, which is similar to the midway position of the rotary volume c[...]

Using the DSP33 Digital Loudspeaker System 22 The balance control of the DSP33 Digital Loudspeaker System 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. To change the balance ● Press < or > on the re[...]

Configuring the DSP33 loudspeakers using a computer 23 Configuring the DSP33 loudspeakers using a computer T he DSP33 Digital Loudspeaker System provides a range of configuration options, which you can change to suit your own preferences and the other equipment in your system. To configure the DSP33 Digital Loudspeaker System you connect the master[...]

24 Configuring the DSP33 loudspeakers using a computer The Meridian Configuration program is a stand-alone Windows- based application that lets you design your own configuration of the DSP33 Digital Loudspeaker System to suit your own personal preferences and the particular configuration of equipment in your system. The Meridian Configuration progr[...]

Configuring the DSP33 loudspeakers using a computer 25 Button Option Function New Creates a new settings file. Open Opens an existing settings file. Save Saves the current settings file to disk. Fetch Fetches the current configuration of the attached product. Store Stores the current settings to the attached product. Disconnect Disconnects the prog[...]

26 Configuring the DSP33 loudspeakers using a computer To connect the serial cable The serial cable is symmetrical, and can be connected either way round. ● Connect one end to the RS232 connector on the back panel of the DSP33 loudspeaker. ● Connect the other end to one of the serial ports on the PC or PC notebook computer. Then specify the ser[...]

Configuring the DSP33 loudspeakers using a computer 27 A new settings file will be created for you, with the initial name MSF1 , and the Meridian window will show a Digital active loudspeaker icon to identify the product you are configuring. ● Choose Save As from the File menu, enter an appropriate name for the file, such as your name, and click [...]

28 Configuring the DSP33 loudspeakers using a computer To display the settings ● Double-click the Digital active loudspeaker icon, to open it and display the settings it contains. The left-hand panel of the Meridian window will change to show the following two icons: Settings is the initial configuration in the settings file. Double-clicking Retu[...]

Configuring the DSP33 loudspeakers using a computer 29 If you choose Meridian surround controller the Start volume , Tilt , and Bass options are controlled by the surround controller, and will be greyed out in the Meridian Configuration program. ● Set the Speaker use to Normal for a main or surround speaker, or Centre for a centre speaker. If the[...]

30 Configuring the DSP33 loudspeakers using a computer For best results with a Meridian D1500 or D2500 subwoofer choose Free , Boundary , or Corner as appropriate. If you have specified the Speaker Use as Centre you can apply a Centre Speaker tilt offset , which is added to the Tilt value for the selected source. The recommended setting is -1dB whe[...]

Configuring the DSP33 loudspeakers using a computer 31 To configure the source options ● Select the source in the list of sources. The settings for the source are shown in a panel to the right: To change the name used to identify the source when using RS232 control: ● Choose a name from the Name drop-down menu. This section describes how to use[...]

32 Configuring the DSP33 loudspeakers using a computer Choosing Unused prevents the source from appearing when you press the corresponding source key on the Meridian System Remote. The name used to identify each source is shown in the list of sources, followed by the Meridian System Remote key used to select the source in brackets. ● From the Aud[...]

Configuring the DSP33 loudspeakers using a computer 33 Advanced Specify the Advanced options as follows: ● Select Poor digital audio source if you have difficulty locking to the source. ● If the source is connected to another Meridian unit, set Comms type to 1C for a Meridian CD player, 2C for a Meridian FM tuner, and 3C for a Meridian DVD play[...]

34 Configuring the DSP33 loudspeakers using a computer Completing the configuration The final stage in creating a settings file is to save it, and then store it to the speaker. To save the current settings ● Choose Save from the File menu or click the Save toolbar button, to save the changes you have made to the settings file to your PC hard disk[...]

Troubleshooting 35 T roubleshooting T his chapter provides suggested solutions to typical problems that may occur when setting up the digital loudspeaker(s). 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.[...]

36 Troubleshooting Green indicator on back panel not lit Check the following: ❍ There is AC power connected to the socket on the back of the DSP33. ❍ The power switch on the back panel of the DSP33 is turned on. If the DSP33 will still not illuminate, check any fuses in your power supply and the fuse in the inlet of the DSP33. If these are all [...]

Troubleshooting 37 ❍ Ensure that the receiver uses well-screened antenna cable. ❍ Relocate the receiver with respect to the DSP33. ❍ Connect the receiver and this product to different AC outlets. ❍ If the problem persists contact your dealer. Centre not working There may be a connection problem. ❍ Check that the channel switch is set to L[...]

38 Troubleshooting Only the master loudspeaker plays ❍ Check the S5 cables are connected correctly. Sound is odd or mono ❍ Check the channel selector switches on both loudspeakers are correctly set.[...]

Troubleshooting 39 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 DSP33 fails to function correctly, it should be returned, in its original pa[...]

40 Troubleshooting[...]

41 Index Index A Accessories 8 Audio inputs, digital 14 B Back panel 13 Balance 22 Bass 32 C Centre speaker not working 37 using DSP33 as 15 Communications connections 14 Components 10 Computer, configuring using 23 Configuring the digital surround controller using a computer 23 using the reset plug 13 D Digital audio inputs 14 Digital audio output[...]

Index 42 T Tilt 32 Toolbar buttons 25 Troubleshooting 35 U Unpacking 10 V Volume adjusting 21 muting 21[...]