Meridian America DSP7200 Speaker User Manual


  Open as PDF
of 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reex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&ltering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ampliers–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agship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agship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.
 previous