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Introduction
The DSP420 In-Wall Loudspeaker System incorporates the
result of several years of research and development into
innovative technologies.
Meridian DSP
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.
Enclosed in a fully shielded housing, Meridian’s unique DSP
processing is performed on a specifically designed six-layer
PCB using a powerful 100 MIPS Motorola DSP engine. Through
this sophisticated audio computer the DSP420 receives all of the
same high technology features that can be found throughout the
Meridian DSP loudspeaker family. These include:
❍ FIFO memory buffer input for the lowest possible jitter.
❍ Linear-phase crossover for precision drive unit integration.
❍ Tweeter delay for perfect driver alignment.
❍ 48-bit resolution volume control.
❍ Minimal frequency equalisation to give a frequency response
free from drive unit or electronic coloration.
❍ Transparent tone controls.
❍ Absolute phase control and phase-corrected balance control.
A further DSP enabled enhancement to the audio performance
of the DSP420 is Meridian’s active bass extension. This deepens
the response of the system without excessive woofer excursion
The DSP420 In-Wall Loudspeaker System