Specifications

T
he ALVA MADI Cable Drum is a professional yet affordable 4-fibre SC to SC optical multicore, designed for
studio, stage, broadcast and TV appplications. The used MCD cable is extremely flexible, crush and impact
resistant. RME partner ALVA (www.alva-audio.com) designed a simple, but effective splash-water protection, a
sturdy strain relief, and took care of easy handling. This MADI cable system suits perfectly for all mobile applications.
It can be used with all RME products having optical MADI I/Os.
The MADI Cable Drum is made in Germany. Every cable comes with its own specific measuring protocol. ALVA offers
support and quick service in case a replacement is necessary.
Specications
▪ Fibre count: 4, each with captive dust protections
▪ Transport and splash water protection by a handy pull-out cover
▪ MADI connector cover
▪ Secondary Coating: 900 ?m
▪ Diameter Cable: 5,2 mm
▪ Dimensions (HxWxD cm): 36 x 27 x 23 (MCD-150), 49 x 31 x 29 (MCD-300)
▪ Weight: 4.9 kg (MCD-150) / 10.3 kg (MCD-300)
31Accessories
I64 MADI Card
MADI Cable Drum
ALVA MADI
Cable Drum
optional MADI I/O Slot Module
4-fibre SC to SC MADI Optical Multicore
Supported devices
Micstasy
DMC-842
ADI-8 QS
Available
lengths
100 m (MCD-100)
150 m (MCD-150)
300 m (MCD-300)
other lengths on
request
▪ Signal to Noise ratio DA (SNR): 116 dB RMS unweighted, 119 dB(A)
▪ THD DA: < -104 dB (< 0.00063%)
▪ THD+N DA: < -100 dB (< 0.001%)
▪ Crosstalk DA: < 110 dB
▪ Output level @ 0 dBFS: +24 dBu, +19 dBu, +13 dBu
▪ Frequency response DA, -0.5 dB: 5 Hz - 22 kHz (sf 48 kHz)
▪ Frequency response DA, -0.5 dB: < 5 Hz - 34 kHz (sf 96 kHz)
▪ Frequency response DA, -1 dB: < 5 Hz - 50 kHz (sf 192 kHz)
▪ Sync sources: Internal, AES, Word Clock, Option (MADI)
▪ Sample frequencies: 44.1, 48, 88.2, 96, 176.4, 192 kHz, variable
(external clocks)
▪ Sample rate range: MADI: 32 - 192 kHz, Word Clock: 27 - 200 kHz,
AES: 28 - 200 kHz
▪ Jitter: Typical < 1 ns for internal, Word Clock, AES and MADI input
▪ Jitter suppression: > 30 dB (2.4 kHz)
▪ Jitter sensitivity: all PLLs operate error-free even at 100 ns
▪ Power supply: Internal switching mode PS, 100 V - 240 V AC, 60 Watt
▪ Dimensions: (WxHxD) 483 x 88 x 200 mm
DMC-842 continued
Specifications
8 x Channel strip
Level meter with Peak Hold function, status LEDs for all channel functions (amount
of amplification, Digital Phantom Power, Stereo mode, M/S Mid/Side encoding and
Sample Rate Converter).
Multifunctional rotary controller
for direct access to all functions.
Analog outputs reference level and remote mode controls.
MIDI I/O
Used to remote control and
transmit MIDI data via MADI.
I64 MADI Card (optional)
Coaxial and optical MADI I/O
8 x Analog line outputs
Eight balanced XLR line outputs with up to +27 dBu level. Playback of eight
digital XLR Mic inputs or an eight-channel group of the MADI input signal.
Word Clock I/O 8 x Input for digital microphones
and AES/EBU signals
Eight balanced AES42 XLR inputs with
switchable digital phantom power (DPP).
Compatible to AES3 and AES/EBU.
AES/EBU I/O
The 25-pin D-sub connector provides
four outputs and one input for clock
synchronization. Wired in the widely spread
Tascam standard.
ADAT Output (TOSLINK)
Provide the same signals as
the AES/EBU outputs, but in
ADAT format.
30 Preamps
PREMIUM LINE
T
he MADI module provides total integration of Micstasy, DMC-842 and ADI-8 QS into any MADI environment.
With an installed I64 MADI Card the device can also be remote controlled via MIDI over MADI.
The I64 MADI Card features an optical as well as a coaxial MADI input. Full redundancy is ensured by the automatic
input switching, immediately changing to the other input in case of loss of the input signal. The MADI input will
operate as an optional clock source (Clock section, OPTN) as well as a thru-input.
Since a single MADI cable can transfer up to 64 channels of audio, up to 8 RME MADI devices can be easily daisy-
chained with one MADI cable per unit. They can be configured to use their individual channels within the MADI
stream. The Auto Channel Assignment setup feature simplifies the channel configuration. Since each device uses
only 8 channels, up to 56 channels can be passed through unchanged - only one block of eight channels is replaced.
All 64 combined channels are available at the last device’s MADI output.
When multiple devices are connected serially, their MADI I/O causes a delay of 3 samples. Therefore at the MADI
output of the last device, the data of all former devices are delayed. A special Delay Compensation feature takes
care of this offset problem.