Meridian America DSP7200 - Manual (Page 2)

DSP7200
Digital Signal Processing Active Loudspeaker System
Outline Technical Specification
Performance
• Frequency response in-room within 3dB
from 30Hz to over 20kHz.
• Maximum output >112dB spl @ 1m on
music material.
• Noise less than 15dB spl.
• Overall electronic distortion typically
<0.02% at any frequency or level.
Inputs
• 1x phono digital input (S/PDIF)
• 1x balanced digital (AES/EBU) input on
RJ45; 32kHz–96kHz sampling rates at
up to 24 bit; MHR support. RJ45 input
also carries RS232 and trigger.
Outputs
• 1x RJ45 with balanced digital audio and
control for a second loudspeaker. Carries
infra-red pick up for system automation.
Construction
• ‘3½-way’ acoustic reflex system.
• Digital crossovers at 200Hz and 2.6kHz.
• 2 x 200mm long-throw bass drivers.
• 1 x 160mm polypropylene mid driver.
• 1 x 25mm aluminium-dome tweeter,
silver wire, short horn-loaded.
• Gloss black or silver piano-lacquer
cabinet, other colours available to order.
Electronics
• FIFO memory buffer input for the lowest
possible jitter from almost any source.
• Analogue gain & filtering with proprietary
Meridian Class-A discrete amplification.
• Digital & conversion electronics utilise
advanced surface-mount techniques and
partitioned 6-layer printed-circuit boards.
• 4x 24-bit 128x oversampling D/A
converters for maximum audio quality.
• 4x 100W/4Ω power amplifiers – one per
driver.
Dimensions:
• 1072 (42.25) H (no feet), 350/180
(13.75/7.1) W, 415/217 (16.5/8.5) D
[base/top, mm (in)] See eng. drawing for
full dimensioning.
Weight:
• 55kg (121 lb) each (vertical version).
Controls
• Rear-panel controls for Power On/Off.
MSR+ and RS232
Front display
• Eight-character display w/ system lights
DSP7200DS-ENG v2.7 • REƒ • P88350 • 20080806
The DSP7200 also benefits from original
research at Meridian into digital filtering,
featuring a special new upsampling filter
with especially impressive characteristics
and no pre-echo. The filter is so effective
that it can correct problems further up the
chain including fixing faults in the original
recording. The result: conventional 44.1/48
kHz sampled CDs and DVDs sound
astonishingly like high resolution recordings!
The DSP7200 accepts a digital feed directly
from a Meridian preamp, CD, DVD player or
system controller, accommodating bitstreams
up to 96/24, eliminating analogue speaker
cabling and its associated losses, coloration,
and clutter – while SpeakerLink allows it to
be driven by a single CAT5 cable.
A DSP loudspeaker brings unique
opportunities for optimization of driver/
amplifier/enclosure systems, while giving
listeners unprecedented control over music
and cinema sound playback. Whether
in a two-channel system or as part of
a multichannel home-theatre array, the
DSP7200 provides precision command of
frequency balance, listening axis and time-
compensated balance and master volume –
all implemented utterly transparently.
The DSP7200’s four internal 100-watt
amplifiers are balanced-input, high-current
designs employed in the flagship DSP8000,
with heatsinking on the extruded back panel.
Two amps drive a pair of refined 8-inch, long-
throw bass units with a new basket design,
separately housed in their own optimised
enclosure in the base of the speaker system.
Meanwhile the 6-inch midrange unit is the
same driver used in the flagship DSP8000,
employing a cone made from a uniquely
light and stiff combination of polymers to
give unparalleled transparency. This and the
1-inch composite-dome tweeter, (the latter
deployed with Meridian’s ‘short-horn’ loading),
are each driven by their own amplifiers and
operate from a second, completely separate
enclosure atop the bass/electronics module.
The cabinet is crafted from Meridian’s
innovative, multi-layered ‘sandwich’ of
selected woods and metal, formed in curved,
pressure-laminated panels that produce
almost perfectly vibration- and resonance-
free enclosures, for unmatched freedom
from coloration. The exteriors of these
unique cabinets are painstakingly finished
in Meridian’s trademark gloss piano-lacquer
black or silver colours, with additional colours
available to special order.
In addition to the vertical units
described here, a horizontal ported design is
available, the DSP7200HC, typically designed for use
in home theatre applications.
DSP7200 rear panel showing RJ45 connectors.