Introduction, Available accessories | Meridian America DSP420, M420

DSP420	M420
Digital Signal Processing	Analogue Active In-Wall
In-Wall Loudspeaker System	Loudspeaker System

INSTALLATION & OPERATION

Introduction

The DSP420 Digital 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. The M420 Analogue In-Wall Loudspeaker System employs a similar design to the DSP model, but instead of digital inputs provides a line level analogue audio input.

DSP420 or M420 loudspeakers are ideal as part of a home theatre system, or as the basis for a compact stereo system where the loudspeakers need to be hidden or unobtrusive.

Available accessories

The DSP420 is shipped ready to be used as a speaker in a small Meridian Digital Theatre with a Meridian optical disc player such as the 800 or G98, or a Meridian Digital Surround Controller such as the 861 or G68. The M420 may be attached to a controller or preamplifier with analogue outputs at line level.

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 Plus.

•G12 Remote Eye for infrared remote control reception.

Indicator lights: (*DSP420 only)

The following table explains the function of the indicator lights on the front panel:

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 Meridian system displays have been blanked.

Configuration: DSP420

The DSP420 can be configured either with a PC, using the Meridian graphic configuration program or via RS232 commands. The use of the configuration application is described in its manual, which can be downloaded, along with the latest version of the program, from the Meridian web site, www.meridian-audio.com.

RS232 control: DSP420

The primary RS232 command to which the DSP420 responds is the Position command, which adjusts the loudspeaker parameters according to its position in the room. Send the command PO followed by 0 (default), 1 or 2. 0 sets the loudspeaker for the tweeter at ear level. Use 1 if the speaker is near the ceiling and 2 if it is in a corner. The complete list of RS232 commands is available from the Meridian web site.

To reset the configuration of the DSP420

The following procedure can be used to reset the configuration of the DSP420 loudspeaker to the default settings, without needing a computer, using the reset switch accessible below the front panel.

•Turn off the power at the front panel.

•Press and hold in the reset switch, using a suitable object such as a bent paperclip or the grille removal tool.

•Turn on the power. The red power indicator on the front panel will flash. When the indicator stops flashing:

•Release the reset switch.

Troubleshooting

This section provides suggested solutions to typical problems that may occur when setting up the M420 and DSP420 loudspeaker(s). If you are still not able to resolve a difficulty with the

M420, DSP420 specifications

The Meridian America DSP420 and M420 are high-performance digital signal processing loudspeakers renowned for their advanced audio technology and exceptional sound quality. Designed for both audiophiles and casual listeners, these speakers are a testament to Meridian's commitment to innovation and excellence in the audio industry.

One of the standout features of the DSP420 and M420 is their fully digital design. This means that the audio signal is processed entirely in the digital domain, eliminating the potential for noise and distortion found in traditional analog systems. The speakers incorporate high-resolution digital-to-analog converters, ensuring that audio playback is accurate and faithful to the original recording.

Both models are equipped with Meridian's proprietary DSP technology, which allows for precise control over sound characteristics. This technology helps to optimize the speakers' performance based on the listening environment, providing a tailored audio experience. The DSP capabilities also extend to built-in eq options, allowing users to customize the sound to their preference.

Another significant feature of the DSP420 and M420 is their active design. This means that each speaker has its own built-in amplifier, providing optimal power and performance. This active configuration allows for better control over the speaker drivers, minimizing distortion and delivering a more dynamic sound.

Connectivity options are abundant, with both models supporting a variety of digital inputs, including AES/EBU, S/PDIF, and network streaming. This versatility makes it easy for users to connect the speakers to a wide range of audio sources, from traditional CD players to modern streaming devices.

The build quality of the DSP420 and M420 is robust, with an aesthetic that complements various interior designs. The cabinets are crafted to minimize resonance, further enhancing sound clarity and definition. Moreover, the drivers used in these speakers are meticulously engineered to deliver broad frequency response, ensuring that every detail of the audio is reproduced accurately.

In conclusion, the Meridian America DSP420 and M420 represent the pinnacle of audio technology in a speaker format. With features like a fully digital design, advanced DSP technology, active amplification, and versatile connectivity, these models are tailored to deliver an unparalleled listening experience. Whether for music, movies, or gaming, the DSP420 and M420 stand out as exceptional choices for anyone seeking premium sound quality in their audio setup.