Meridian America DSP420 manual Audio wiring instructions, M420, Outline Specifications

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DSP420

M420

Digital Signal Processing

Analogue Active In-Wall

In-Wall Loudspeaker System

Loudspeaker System

INSTALLATION & OPERATION

Audio wiring instructions

First remove the cover labelled audio connections.

M420

If it is intended to use the wall box with a M420 loudspeaker, then select the analogue input card.

Audio connections are made in one of two ways:

XLR connection using a male XLR plug connected to K2. The XLR wiring is conventional “pin 2 hot”, ie:

Pin 1 ground / shield; Pin 2 ‘+ phase’ / hot; Pin 3 ‘– phase’ / cold

Hard wired to the terminal block, connected as marked. It is recommended balanced wiring is installed, if however single-ended wiring has been fitted then wire the signal to ‘+ phase’ and the outer / shield to the gnd terminals,

‘– phase’ should be left unconnected.

DSP420

If it is intended to use the wall box with a DSP420 then use the digital input card.

Outline Specifications

Inputs:

DSP420—1 x 75Ω coaxial digital input,

 

IEC958 (S/PDIF), 44.1kHz – 96kHz.

 

FIFO locks at 44.1, 48, 88.2, & 96kHz

 

±150 PPM, PCM & MHR.

 

M420—1 x 300Ω balanced line-level

 

input on XLR connector

Enclosure:

Aluminium front baffle with sealed, me-

 

chanically damped and insulated

 

acoustic enclosure. Baffle finished in

 

textured black enamel.

 

Grille finished in easy-to-paint white

 

powder coat, backed by acoustically-

 

transparent scrim. White moulded cus-

 

tom paintable frame.

Acoustics:

2-way Infinite Baffle enclosure.

 

2 x 127mm high-efficiency long-throw

 

custom bass drivers,

 

1 x Meridian 25mm tweeter with alumin-

 

ium (DSP420) or silk (M420) dome.

Response:

55Hz – 20kHz ±3dB.

 

Slave Master

 

 

 

 

 

 

 

 

 

 

 

 

Out

 

 

 

 

In

Out

 

 

 

In

+8V

GND IR

GND

Meridian Comms

Out

Gnd

In

Gnd

Digital Audio

Out

Gnd

In

Gnd

In order to function correctly, the DSP420 requires connections to be made to both Meridian Comms and digital audio.

Connections to both the Comms and digital audio can be made using either BNC connections or can be hard-wired to the terminals as marked.

A remote IR connection can be optionally accommodated from a remote sensor such as a Meridian G12 or 512, which can be wired to a master speaker as follows: Red to +8V, blue to IR and screen GND.

Meridian Digital link cable is suitable for the Comms and audio but it does not have approvals such as UL. If alternative cable is required, then the following specifications should be adhered to: Comms: Single screened cable, 100pF/m or less Digital Audio: 75Ω coaxial cable, shielded with braid and foil

Amplification:

Internal 85W woofer, 65W tweeter.

 

6VA (quiescent) – 200VA (full output).

DSP (DSP420): 100MHz Motorola 56364, Linear Phase

 

Crossover, 96kHz, 24-bit DAC.

Controls & Indicators:

Front baffle controls for power

 

and channel selection.

 

LED indicators for power, lock (DSP ver-

 

sion) and thermal warning.

Approx. Dimensions:

Frame 450mm (17.72in) square,

 

depth 102mm (4.02in) Hole cutout 357

 

x 388mm (14.10 x 15.28in) Note: dimen-

 

sions are approximate. See installation

 

drawings for detailed information. The

 

DSP420 and M420 are designed to fit

 

standard 16in stud centres.

Approx. Weight:8.5 kg (18.7 lb) main unit without frame,

 

grille or connection boxes.

Mounting:

Easy-install frame with fire-retardant

 

power and audio connection boxes. Tem-

 

plates provided for both new construc-

 

tion and installation into existing walls.

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Contents Truly Active In-Walls BackgroundActive Bass Extension Meridian DSPAcoustics To reset the configuration of the DSP420 Available accessoriesIndicator lights *DSP420 only Configuration DSP420 RS232 control DSP420Guarantee ServiceFitting Instructions 10AMAXIMUM DSP420 Audio wiring instructionsOutline Specifications M420Connecting a pair of DSP420s as slaves in a theatre system Connecting a pair of DSP420s as a stereo systemConnecting a DSP420 as a centre master in a theatre system

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.