e i d u g r e s u Meridian DSP420 In-Wall Loudspeaker
Meridian DSP420 In-Wall Loudspeaker System User Guide Preface i
Sales and service in the UK Meridian Audio Ltd Stonehill Stukeley Meadows Sales and service in the USA Cambs PE29 6EX Meridian America Inc England 3800 Camp Creek Parkway Building 2400 Tel (01480) 445678 Fax (01480) 445686 Suite 122 Atlanta Meridian Audio Ltd GA 30331 Stonehill World Wide Web http://www.meridian-audio.com Stukeley Meadows Tel (404) 344 7111 Cambs Fax (404) 346 7111 PE29 6EX Part no: DSP420 Preface Copyright © 2003 Meridian Audio Ltd.
Important safety instructions ❍ Refer to installation sheet for wiring and other important safety To avoid overheating instructions. ❍ Heed all warnings. Do not position the speakers: ❍ Read the instructions. ❍ Keep these instructions. ❍ In direct sunlight. ❍ Follow all instructions. ❍ Near heat sources, such as a radiator. ❍ Do not use this apparatus near water. ❍ Directly above heat producing equipment, such as a power ❍ Clean only with a dry cloth. 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.
Contents Introduction 1 Introduces the DSP420 In-Wall Loudspeaker System, and gives guidelines and suggested layouts to help you plan Unpacking the DSP420 loudspeakers 11 your surround system. Gives details of the components supplied The DSP420 In-Wall Loudspeaker with the digital loudspeakers, and explains System ..................................................... 2 how to reset their configuration. Using the DSP420 loudspeakers Unpacking ..............................................
Configuring the DSP420 loudspeakers using a computer 19 Describes how to configure the digital loudspeakers using the Meridian Configuration program. Troubleshooting 31 The Meridian Configuration program ..... 20 Provides suggested solutions to typical Running the Meridian Configuration problems. program ................................................. 21 Creating a new settings file .................... 23 Troubleshooting ..................................... 32 Changing the setup options .......
Introduction The DSP420 In-Wall Loudspeaker System uses high technology digital signal processing to remove the compromises previously associated with in-wall speakers, allowing them to achieve the same clear open sound and wide frequency response as traditional free-standing speakers. DSP420 loudspeakers are ideal as part of a home theatre system, or as the basis for a compact stereo system.
The DSP420 In-Wall Loudspeaker System The DSP420 In-Wall Loudspeaker System incorporates the Meridian DSP result of several years of research and development into innovative technologies. The DSP420 accepts digital input signals up to 96kHz/24-bit, including Meridian High Resolution (MHR) streams from Meridian surround controllers, processors, and DVD players.
and in turn produces a convincingly ‘big box’ sound from an DSP420 drivers in-wall unit. At moderate volumes, a psychoacoustically correct filter extends the bass response much further than can be Each DSP420 loudspeaker uses two parallel 127mm (5") bass achieved with an analogue speaker of equal size while at high drive units.
Meridian High Resolution (MHR) The following pages show two recommended configurations based on the DSP420 In-Wall Loudspeaker System to illustrate The DSP420 In-Wall Loudspeaker System supports Meridian High Resolution (MHR), to allow you to connect to other MHRcompliant 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.
Sample configurations Meridian Digital Theatre™ DSP420 DSP5500HC DSP7000 DSP7000 DSP420 504 Meridian DVD Player Meridian Surround Processor A pair of DSP7000 loudspeakers, in conjunction with a Meridian Surround Processor to provide the two rear channels, DSP5500HC centre speaker, would provide excellent choices for and optionally two additional side channels, to create an the front channels, giving a complete system without unobtrusive surround system with superb music and cinema compromise.
DSP420 Digital Stereo System DSP420 DSP420 Meridian DVD Player T he DSP420 can be connected directly to almost any source Alternatively, the volume can be controlled with the Meridian that provides a PCM SPDIF output, including CD or DVD System Remote using the optional 512 Remote Eye. players, some PC soundcards, and digital satellite decoders. Introduction The DSP420 includes a DSP volume control, and with Meridian 6 sources this operates seamlessly via the 500 comms system.
Other applications Other applications include: ❍ Main speaker in a Digital Music System with a Meridian CD Player (512 required). ❍ Main speakers with another source of digital audio; eg satellite (512 and MSR required). ❍ Second zone speaker in a Meridian two-room plus system (long M5 lead, 512, and MSR required). These applications may require additional accessories; for more information see Available accessories, page 9.
Specification and accessories Frequency response 55Hz-20kHz ± 3dB Specification Digital inputs 1 x cable, 75Ω, IEC958, 44.1kHz-96kHz. FIFO locks at 44.1, 48, 88.2, or 96kHz ± Crossover Linear-phase ±30º at 2.3kHz. Drive units Woofers: 2 x 127mm (5") carbon fibre 150ppm, PCM and MHR. custom drivers, cast alloy chassis. 1 x digital output cable, 75Ω, IEC958, Tweeter: 1 x 25mm (1") aluminium dome providing a copy of the selected input.
Available accessories The DSP420 is shipped ready to be used as a speaker in a small Meridian Digital Theatre with a Meridian DVD Player (such as the 800 or 598) or a Meridian Digital Surround Controller (such as the 861, 568.2, 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: ❍ Meridian System Remote. ❍ 512 Remote Eye for remote control reception.
10 Introduction
Unpacking the DSP420 loudspeakers This chapter explains what you should find when you unpack the speakers, prior to installing them. It also explains how to reset the configuration from the front panel. to the DSP420 Installation Instructions leaflet, supplied separately.
Unpacking The digital loudspeaker system is supplied in a box containing the following components: ❍ DSP420 speaker module. ❍ Grille assembly. ❍ Spare grille scrim. ❍ This user guide. ❍ DSP420 Installation Instructions leaflet. Unpacking the DSP420 loudspeakers ❍ Six screw packs for speaker module. 12 ❍ Meridian Comms interconnect lead. ❍ Configuration program. ❍ Grille removal tool. If any of these items is missing, please contact your dealer.
Resetting the loudspeakers To reset the configuration of the digital loudspeaker The following procedure can be used to reset the configuration of the DSP420 loudspeaker to the default settings, without Channel selector needing a computer, using the reset switch accessible below the front panel. RESET POWER such as a bent paperclip or the grille removal tool. indicator stops flashing: ● Release the reset switch.
Indicator lights The following table explains the function of the indicator lights Unpacking the DSP420 loudspeakers on the front panel: 14 Light State What it means Red On Power supplied to speaker. Flashing Speaker is being reset, or speaker has overheated and has shut down. Green On Speaker is locked to a digital input. Off Speaker is in standby. Note: The indicator lights are blanked if the displays on the Meridian system have been blanked.
Using the DSP420 loudspeakers In systems with a Meridian preamplifier or control unit all of the functions of the DSP420, 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. directly to a digital source to create a complete, minimum system.
Selecting a source When not playing, the digital loudspeakers should be left in the standby state. This ensures that the components of the loudspeakers operate at maximum efficiency from the moment you start. To select a source ● Press the appropriate source key on the remote; eg DVD. This will bring the digital loudspeakers out of standby. If there is Using the DSP420 loudspeakers a signal to the speakers the green indicator on each speaker will 16 be illuminated.
Adjusting the volume 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 control on a conventional preamplifier. To change the volume ● Press the red A or V keys on the remote. ● Press Mute on the remote.
Adjusting the balance or phase The balance control of the DSP420 In-Wall Loudspeaker System To change the phase uses digital signal processing to compensate for an off-centre listening position by delaying and diminishing the sound in one ● Press A on the remote. speaker, thus effectively shifting the speaker’s image back. The phase function controls the absolute phase of the digital To change the balance conversion.
The DSP420 In-Wall 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 DSP420 In-Wall Loudspeaker System you connect the master loudspeaker to a PC, and then use the Meridian Configuration program to set the configuration you want. This chapter explains how to install the Meridian Configuration program, and then how to use it create your own configuration of the DSP420.
The Meridian Configuration program The Meridian Configuration program is a stand-alone Windows- Requirements Configuring the DSP420 loudspeakers using a computer based application that lets you design your own configuration of 20 the DSP420 Digital Loudspeaker System to suit your own To use the Meridian Configuration program you need: personal preferences and the particular configuration of equipment in your system. ❍ A computer running Windows 95 or later.
Running the Meridian Configuration program To run the Meridian Configuration program Configuration. Option Function New Creates a new settings file. Open Opens an existing settings file. Save Saves the current settings file to disk. The Meridian window will be displayed: Fetch Fetches the current configuration of the attached product. Store Stores the current settings to the attached product. Disconnect Disconnects the program from the attached product.
Configuring the DSP420 loudspeakers using a computer To select which loudspeaker to configure 22 To connect the serial cable The serial cable is symmetrical, and can be connected either You will only need to configure the DSP420 loudspeakers in your way round. system if one of them is the master speaker for the system, or if you want to change the Position control. For more information see Changing the setup options, page 25.
Creating a new settings file A new settings file will be created for you, with the initial name Meridian Configuration program, and how to enter personal MSF1, and the Meridian window will show a Digital active information to identify the settings in your product.
Configuring the DSP420 loudspeakers using a computer 24 To display the settings To display or edit the settings ● Double-click the Digital active loudspeaker icon, to open it ● Double-click the Settings icon. and display the settings it contains. The Meridian window will change to show the two categories of The left-hand panel of the Meridian window will change to show settings contained in the settings file: Sources and Setup.
Changing the setup options The next stage in editing the settings is to configure the general The Position control adjusts the frequency response of the Setup options. speaker to compensate for a position close to a corner or high ● Choose the appropriate option from the Position drop-down ● Click the Setup icon in the left-hand panel of the Meridian menu, as shown in the following table: window. The Setup options will be displayed: Position What it means Normal Up to 1.
Configuring the DSP420 loudspeakers using a computer Advanced options 26 The Advanced options are described in the following table: Option What it means Volume control Specifies whether the DSP420 provides volume control for the system. Choose Main if the DSP420 is in the main room, Secondary if the DSP420 is used in a second room, or None if the DSP420 is in the second or third room of a three-room system.
Setting up sources This section describes how to use the Meridian Configuration To configure the source options program to configure the sources provided by the digital active To set up sources ● Select the source in the list of sources. The settings for the source are shown in a panel to the right: ● Click the Sources icon in the left-hand panel of the Meridian window. The right-hand panel shows a list of the 12 sources that are available.
The name used to identify each source is shown in the list of Configuring the DSP420 loudspeakers using a computer sources, followed by the Meridian System Remote key used to 28 select the source in brackets. 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 player.
Completing the configuration The final stage in creating a settings file is to save it, and then If the download was successful the DSP420 will switch itself to store it to the speaker. standby. ● 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: To store the settings to the DSP420 loudspeaker ● Click the Store button: The settings will then be downloaded and the back panel indicator will flash.
30 Configuring the DSP420 loudspeakers using a computer
Troubleshooting This 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.
Troubleshooting Red power indicator on front panel not lit Green lock indicator will not light The green indicator lights when the product is out of standby Check the following: and is locked to a digital source. ❍ The power switch on the front panel of the DSP420 is turned ❍ Check that the digital audio input is wired correctly and that it on. is connected to an active source of SPDIF.
Only the master loudspeaker plays Configuring the DSP420 does not have any effect ❍ Check the S5 cables are connected correctly. Make sure that you are configuring the DSP420 used as the Centre not working master digital loudspeaker in the system. This determines the configuration of all digital loudspeakers in the system. ❍ Check that the channel switch is set to LEFT/CENTRE.
Service and guarantee Service Guarantee The Meridian components have been carefully designed to give The DSP420 DSP In-Wall Loudspeaker System is guaranteed years of untroubled service. There are no user-serviceable parts against defects in material and workmanship for two years from inside the case, nor do the units require any form of the date of purchase. maintenance.
Index A accessories 9 serial port, specifying 22 Meridian Configuration program Settings file, creating (continued) B balance 18 C centre speaker, not working 32 components 12 23 running 21 Settings icon 24 toolbar buttons 21 Setup icon Meridian Digital Compact Setup options, using a PC 25 20, 25 sources Theatre™ 5 computer, configuring using 19 Meridian High Resolution (MHR) 4 configuring options using a PC 27 configuring the digital surround muting the sound 17 selecting controll
36 Index
