Meridian America DSP5500HC User Manual

DSP5500HC

Background

Today’s multichannel music and film soundtracks demand more performance from a centre channel than ever before. High performance centre-channel loudspeakers must have frequency, phase and sonic characteristics that closely match your main speakers. When matched correctly, the resulting surround sound or enhanced stereo presentation will be natural. New higher resolution multichannel formats mean that correct choice of a centre speaker is even more critical. By designing our systems with music reproduction foremost in our minds, Meridian has once again anticipated your needs with the DSP5500HC, matching the performance of its vertical counterparts.

Meridian DSP5500HC

The DSP5500HC is constructed with steel panels sandwiched between the rigid inner cabinet and the veneered outer panels on four sides. The two 200mm bass drivers are housed in separate internal enclosures. A third internal enclosure houses the tweeter and midrange. As a result the acoustic cabinet is extremely rigid, giving the benefits of extension, clarity and dynamic range unheard of in conventional centre channels.

Meridian also included innovative DSP technology to compensate for boundary and corner use. This is a centre speaker that can be installed in almost any environment with confidence.

The DSP5500HC has been designed to work coherently with the Meridian DSP5500, DSP6000 and DSP8000 loudspeakers.

Technical Specification

Performance: Frequency response in-room within 3dB from 35Hz to over

20kHz. Maximum output >111dB 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.

DSP Centre-channel Loudspeaker

Sales information 1st December 2001

• Three-way active loudspeaker

with DSP crossover

• Self-contained audio system, each

comprising four custom drivers, four amplifiers, three digital converters, digital crossovers and advanced sound-shaping DSP computers

• Remote controlled and requiring

no unsightly speaker cables

• Listener control over features

including bass, treble tilt, listening axis, volume, timecompensated balance and absolute phase

• Magnetic shielding with heavy

steel prevents disturbing TVs

• Maximum output level up to 111dB

spl

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

Power amplifiers use a unique feedback topology and

precision local error-correction systems to achieve a

performance equivalent to the conversion system. Dimensions: 1100mm (43.3in) W, 285 (11.2) H, 415 (16.3) D

Weight 81kg (179lb) DSP: 100MHz Motorola digital signal processor. Digital crossover at 200Hz and 2.6kHz. Response correction for the whole system. User tone, volume and phase controls. 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.

Diagram of Cabinet Construction

Enclosure for Tweeter and Mid

Bass Enclosure

Isolated Electronics Enclosure

Low Frequency Port Low Frequency Port

Added to this inner cabinet are four steel sheets and four veneered panels for increased rigidity.