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The main cabinet is constructed from high-density MDF. A unique sandwich
construction method clamps sheet steel all over the cabinet sides between the
main cabinet and the real wood veneer side panels. This technique results in a
very inert cabinet and provides exceptional magnetic screening -“ allowing the
DSP5500 to be placed immediately next to small or large TVs. The top of the
cabinet has an attractive 4mm plate-glass top.
Electronic system
Each speaker incorporates an electronic panel in the rear part of the cabinet.
The speaker accepts digital signals and there are two inputs. The input receiver
uses a FIFO memory buffer for the lowest possible jitter from almost any
source.
The crossovers, equalisation, tuning for a number of locations including cabinet
installation, protection and tone controls are all implemented in a 100MHz
Motorola Digital Signal Processor (DSP) inside each speaker. The DSP feeds
carefully tailored individual signals to the bass, mid and tweeter DACs. The
DSP5500 uses four Meridian Class-A discrete 75W low-distortion power
amplifiers to individually power the drivers. The electronics are powered by a
high-current toroidal transformer through a custom high-speed power supply.
Technical Specification
Performance: Frequency response in-room within 3dB from 30Hz to over
20kHz.
Output >112dB spl @ 1m on music material.
Noise less than 15dB spl.
Overall distortion typically <0.02% at any frequency or level.
Inputs: Two digital inputs to SPDIF standard; 32kHz-“96kHz sampling
rates at up to 24 bit; MHR support. (A future software update
will enable support for 192kHz.)
Construction: 3-way acoustic reflex system.
2 x 200mm long-throw bass drivers.
1 x 160mm polypropylene mid driver in separate enclosure.
1 x 25mm aluminium-dome tweeter, silver wire, short horn-
loaded with protective grille.
Cabinet constructed from high-density MDF. Integral magnetic
shielding and user-changeable real wood veneer acoustic
damping side panels.
FIFO memory buffer input for the lowest possible jitter from
almost any source.
Four precision 128x oversampling converters for bass, mid
and tweeter signals
Analogue gain and filtering using proprietary Meridian Class-A
discrete amplification.
Digital and conversion electronics constructed using
advanced surface-mount techniques and partitioned 6-layer
printed-circuit boards.
Four 75W power amplifiers, one for each of the drivers.
Power amplifiers use a unique feedback topology and
precision local error-correction systems to achieve a
performance equivalent to the conversion system.
Dimensions: 1100mm (43.31in) H, 284 (11.2) W, 450 (17.72) D
Weight 81kg (179lbs) each
DSP: 100MHz Motorola digital signal processor.
Digital crossover at 200Hz and 2.6kHz.
Response correction for the whole system.
Controls: Rear-panel controls for Power On/Off.
MSR and RS232 port provide control over bass, treble tilt,
listening axis, volume, time-compensated balance and
absolute phase.
Front display: Eight-character display with system lights, can be blank. DSP5500 DSP Loudspeaker
Sales information
1st
December 2001
Meridian Audio Limited
Stonehill, Stukeley Meadows
Huntingdon
Cambridgeshire PE29 6EX
T +44 (0) 1480 445678
F +44 (0) 1480 445686
Meridian America Inc.
Suite 122, Building 2400
3800 Camp Creek Parkway
Atlanta GA 30331
T (404) 344 7111
F (404) 346 7111
www.meridian-audio.com
