Meridian Audio Car Speaker DSP420 User Manual

DSP420  
Digital Signal Processing  
In-Wall Loudspeaker System  
The World’s first DSP In-wall  
based on technology used in  
Meridian’s famous DSP speakers  
Easy install sealed  
pre-construction enclosure  
Double sealed and damped  
acoustic enclosure  
Separate, on-board,  
85W bass and 65W treble  
power amplifiers  
2 way Active speaker with  
DSP crossover  
Custom paintable grille/frame  
The DSP420 accepts up to 96kHz/24-bit  
inputs including Meridian MHR  
Smart Link.  
This product is designed to comply  
with international building regulations  
Background  
In-wall loudspeakers are by no means a new invention. Custom installers the world over  
have used them for years to enable the design and creation of discrete audio and audio-  
visual solutions.  
Meridian America Inc  
3800 Camp Creek Parkway  
Building 2400 Suite 122  
Atlanta GA 30331  
Through the use of in-wall speakers, an installer can create an environment where the  
listener need only experience the sound they expect without resorting to more tradition-  
al freestanding loudspeakers.  
T +1 (404) 344 7111  
While there are many in-wall loudspeakers currently available, surprisingly, there is very  
little design variation and all fall foul of the same constraints and limitations. Meridian  
DSP420 breaks that mould with an in-wall loudspeaker that is a rare breed. Inside each  
speaker, high technology digital signal processing is used to free the sound from the  
walls: the result is clear and open with a wide response.  
F +1 (404) 346 7111  
Meridian Audio Limited  
Stonehill  
Stukeley Meadows  
Huntingdon  
The Truly Active In-wall  
Cambridgeshire PE29 6EX  
England  
The DSP420 is a truly active in-wall speaker with separate internal amplification for high  
and low frequency bands. The idealised low feedback designs are based on those used  
in other Meridian DSP speakers. Rated at 65 and 85 Watts respectively and using careful-  
ly selected bipolar output devices, they deliver exceptionally fast bass response and high  
resolution. The system has extremely low levels of noise and distortion, which is aided  
through careful star earthing.  
T +44 (0) 1480 445678  
F +44 (0) 1480 445686  
The power supply includes a substantial toroidal transformer and audiophile-grade  
capacitors. These amplifiers are coupled directly to the drive units for the most efficient  
delivery of power and the best possible control over driver excursion.  
Meridian DSP  
The DSP420 accepts digital input signals up to 96kHz/24bit, including Meridian High  
Resolution (MHR) streams from Meridian Surround Controllers, Processors and DVD  
Players.  
 

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