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www.meridian-audio.com
PRELIMINARYMERIDIAN C SERIES
C61R Digital Surround Controller
Versatile, rack-mounted digital surround processor with Meridian Room Correction, based on the G61R
Meridian’s C Series offers a range of robust, precision-made audio/video components
designed with the custom installation market in mind, extending Meridian’s strong
reputation for the highest possible audio and video quality into new areas.
The line includes power amplifiers, surround processors and all the building-blocks of a
powerful system for custom installation applications. All are fitted with rack-mounting
ears and are equipped with remote control capability where appropriate.
The elegant matte-black rack-mount enclosures include a transparent front panel inset
which can be removed for access.
The C61R is a rack-mounted processor
based on Meridian’s extremely popular
G61 Digital Surround Controller,
optimised for custom installation
applications. It, in turn, is a development
of the successful G68, which itself
builds on the technology that went
into Meridian’s flagship, AAA-rated
861 surround processor, and includes
the award-winning Meridian Room
Correction system to manage room
reverberation and improve the overall
listening experience.
At the heart of the C61R is a powerful
DSP engine consisting of three Motorola
56367s and a 56371 running at 150MHz
– delivering in excess of 500MIPS (million
instructions per second). Processing is
performed at high sample rates and with
48-bit precision throughout, ensuring
that all filtering, processing and other
operations are carried out far, far
above the limits of human hearing. The
C61R is thus ideal for the very latest in
digital audio. For superior audio quality,
incoming analogue signals are converted
to 24-bit, high-sample-rate digital data
via multibit Delta-Sigma converters as
soon as they enter the processor, and all
digital signals are reclocked to minimize
jitter and maintain total data integrity.
The C61R includes two 6-channel S/PDIF
digital inputs (coax), four stereo Toslink
optical inputs, and six stereo coax digital
inputs. There is also a USB Audio input,
allowing a computer system to be hooked
up directly for audio replay, the processor
being seen as an external audio device
by the computer. In addition, there’s
a 6-channel analogue input, and five
stereo analogue ins. All the inputs are
reconfigurable for an incredible degree
of flexibility, and analogue inputs are
converted to digital at high resolution –
24-bit, 96kHz.
The C61R combines controller and
surround processor functions, meeting
the latest THX Ultra 2 specifications and
including the latest superb-quality AAC,
MPEG, DTS, Dolby, Trifield and Ambisonic
(both 2-channel UHJ and B-Format, to 4,
5, 6 or 7 speakers) decoding. The decoders
consist almost exclusively of our own
code, giving them superior integration
with the Meridian design philosophy, as
well as superior performance.
The C61’s ‘Smart Source’ feature
continually monitors the digital inputs
and automatically loads the correct
decoding software for the format,
speaker layout and encoding of the
incoming signal. This capability is
enhanced by MHR SmartLink, which
provides a digital link between a Meridian
optical disc player and processor, carrying
explicit information about the nature of
the datastream.
You can also store separate user
parameters for each source (such as DVD)
depending on whether the incoming
signal is stereo or surround, so that any
source material is played with the DSP
mode of your choice.
The C61R features eight analogue
outputs for front, rear, centre and sub
connections, plus two additional outputs
for other applications. Ten digital
surround outputs are provided, including
front, rear, side, centre/sub and again
include an additional output pair.
Includes Meridian’s powerful
Room Correction system
5 digital optical and 6 digital
coax stereo inputs
5 stereo analogue inputs
10 digital surround and 8 analogue surround outputs
Analogue and 2 digital
multichannel inputs
Powerful DSP engine with
four processors delivering
over 500MIPS
On-board AAC decoding, plus
Dolby Digital, DTS, MPEG,
Ambisonics and acclaimed
Trifield decoding
THX Surround EX Ultra 2
certified
AMBISONICS
TRIFIELD
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Meridian Audio Limited
Latham Road
Huntingdon
Cambridgeshire PE29 6YE
England
T +44 (0) 1480 445678
F +44 (0) 1480 445686
Meridian America Inc
8055 Troon Circle, Suite C
Austell, GA 30168-7849
T +1 (404) 344 7111
F +1 (404) 346 7111
www.meridian-audio.com
PRELIMINARY MERIDIAN C SERIES
C61R Digital Surround Controller
The C61R can be configured with a
powerful Windows graphical setup application (downloadable from
the Meridian web site), which allows
access to all the unit’s functions and
configuration.
However, the C61R can also be
configured extensively from the front
panel, thanks to the comprehensive
‘soft-key’ based user interface like
that employed on Meridian’s G Series
components. ‘Wizards’ lead you through
the configuration procedure, allowing
a powerful degree of customization
without having to hook up a computer.
The C61’s firmware can be updated
via serial link with files downloaded
for the Meridian web site. Two serial
connectors are provided: one on the
rear panel for integration into industrystandard home automation systems,
and one on the front panel allowing
rapid access for computer-based system
reconfiguration. A rear panel USB port
is also provided that can be used for the
latter application.
Outline Specifications
C61R Digital Surround Controller
Inputs: Digital Inputs: 4 x TOSlink optical in, 6 coax S/PDIF stereo in, 2 x 6-ch MHR coax
Outputs: Digital outputs (S/PDIF coax): Main L/R, Centre/Sub, sides, rears; A/B (configu-
Analogue ins: 0.5–2.5Vrms adjustable, input impedance 20kΩ
Analogue outs: Variable between 0 and 3.5Vrms, output impedance 47Ω. Distortion <0.01%.
Control: 2 x DIN and 1 x BNC Meridian Comms, 3 x Trigger (+12v, 150mA), IR in, USB,
Processing: 3 x Motorola 56367s and a 56371 running at 150MHz to give a total of over
Conversion: 24-bit Sigma-Delta converter chips operating at up to 96 kHz on analogue
Controls: Front-panel soft buttons allow extensive system configuration. Display on/off
Display: Multi-character matrix Vacuum Fluorescent Display
Indicators: Power LED
Formats: Include AAC, Dolby Digital, DTS, MPEG Surround,
DSP Modes: Include Direct, Music, Trifield, Ambisonics (2-ch UHJ & B-Format), Super Stereo,
Power: Universal supply 100–240V, 50–60Hz, 25W
Dimensions
Main enclosure 435 x 82 x 250 mm (17.25 x 3.25 x 9.75 in) W x H x D
Front panel 485 x 87.5 x 12 mm (19 x 3.45 x 0.5 in) W x H x D
Weight TBC kg (xx lb)
in; USB Audio input. Analogue Input: 5 x stereo, 1 x 6-ch analogue in, unbalanced
rable); Analogue outputs (phono): Main L, Main R, Rear L, Rear R, Centre, Sub;
LZ, RZ (configurable)
Noise & hum <-95dB CCIR
2 x RS232 (front + rear panels) remote control/configuration
500MIPS (million instructions per second). 48-bit arithmetic throughout
inputs and outputs
button. Full remote control via MSR+ and RS232 serial. Serial and USB link also
used for firmware updates. Config via serial/USB or front panel
Music Logic, THX, Mono, Discrete, TV Logic, ProLogic IIx Music, ProLogic IIx
Movie, ProLogic IIx THX, Cinema and up to 10 user-defined.
Meridian Room Correction
This is a preliminary document and is subject to
significant change without notice.
Meridian retains the right to improve or modify product
specifications and design at any time. E&OE.
C61R v0.92ß Pxxxxx 20071120 • REƒ
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