BM-A2-E8SHD MKII. - Bel (Digital Audio)

BM-A2-E8SHD MKII. - Bel (Digital Audio)
professional broadcast solutions
audio/video monitors
broadcast delays
utility equipment
In-Rack Monitoring
High-quality 16 channel audio monitor with
8 high resolution bargraph meters and
intuitive control
Auto-selection of 3G/HD/SD input source
via two SDI inputs with loop-through
Comprehensive I/O facilities, including 2 x
SDI, 8 x AES-3id and AES/EBU pairs, 10
x analogue
Dolby® E, Dolby® Digital and Digital Plus
Loudness measurement to
ITU-R BS.1770-3 / EBU R128
16 channel monitoring with ability to
monitor any channel on either speaker,
including combinations and groups
High resolution, tricolour level meters
with adjustable colour transition points &
peak-hold facility. Four standard scales &
ballistics, user assignable.
Auto-scaling facilities are available on the
audio outputs when selecting multiple
The Bel BM-A2-E8SHD MKII is a no-compromise, 2U, 16-channel
audio monitor suitable for operation in broadcast control rooms
or OB vehicles where SDI is the standard video format. It is able
to de-embed 16 channels of audio from 3G/HD/SD SDI, display
the levels on individual front panel meters, and to provide stereo
audio monitoring of any combination of all 16 channels.
The unit is very simple to use: all source selection and main
monitoring setup is done from individual controls on the front
panel without any necessity for menu navigation.
In addition to two auto-detecting 3G/HD/SD SDI inputs, the
monitor has eight balanced analogue inputs (D-sub) and eight
AES3id + AES/EBU pairs (selectable). Analogue inputs 1 and
2 are duplicated on a pair of XLRs. A re-clocked loop-through
output is available for the selected SDI source providing a
convenient and cost-effective method of switching SDI feeds to
an external monitor. The 16 channels (of the selected source)
are also routed to the AES outputs and Channels 1 to 8 route to
balanced analogue outputs (D-sub). In addition, the stereo audio
monitor mix is available as a separate balanced feed at a pair of
Audio levels are metered on eight 53-segment, high-resolution,
tricolour LED bargraphs which can be toggled between channels
1-8 and 9-16. User setup options allow a choice of four scales
and ballistics (including BBC or DIN PPM, VU and AES/EBU), and
also colour transition points and peak hold.
The unit will decode Dolby® E, Dolby® Digital or Dolby® Digital
Plus bitstreams into their discrete channels. Dolby data may
be present on any pair of the incoming SDI audio channels,
or connected at any of the AES3id inputs. Metadata may be
displayed on the LCD screen.
Fully RoHS compliant and 3 year warranty.
The BM-A2-E8SHD also performs loudness measurement,
compliant with ITU-R BS1770-3/EBU R128, on the signals
selected for monitoring. Momentary loudness value is displayed
on the LCD screen in numeric form, accompanied by 3 or 10
second average values, the integrated (long-term) value or
Loudness Range (LRA).
[email protected]
BM-A2-E8SHD MKII Specifications
Audio Inputs
8 x 75 ohm (BNC connector) (Also accepts SPDIF)/8 x 110 ohm AES/EBU (Dsub): selectable
Sample Rate
48 kHz (Accepts incoming sample rates from 32 kHz to 96 kHz)
8 x differential impedance 25k ohm. 25 way ‘D’ type connector; 2 x XLR3F
2 x 3G/HD/SD SMPTE 424M, 259M, 296M, 274M, 292M
1 x SDI loopthrough
8 x 53 element tricolour with adjustable colour break points
Analogue Monitor Outputs
2 x XLR3M
Max output level
+15 dB
Noise + THD
-98 dB
Analogue Channel Outputs x 8
1 x 25 way ‘D’ type connector
Max output level
+10 dB
Noise + THD
-108 dB w.r.t. clipping
Digital Channel Outputs x 16
Digital AES
8 x 75 ohm (BNC connector) (Also accepts SPDIF) + 8 x 110 ohm AES/EBU (Dsub)
Frequency response
All analogue outputs
20 Hz to 20 kHz ±1 dB
Main drive amp
Noise + THD
-80 dB w.r.t. maximum output
Speaker driver units
Peak acoustic level (@2ft)
100 dB SPL
Scales and Ballistics
Overall dynamic range: 55 dB (+5 to -50 dB)
Attack time: 10 ms Fallback: 1.5 sec per 20 dB decay
Overall dynamic range: (+12 to -12 dB from mark 7 to mark 1)
Attack time: 10 ms Fallback: 2.85 sec (from mark 7 to mark 1)
Overall dynamic range 23 dB (+3 dB to -20 dB)
Attack time: 300 Fallback: 300 ms
Overall dynamic range 60 dB (0 to -60 dB)
Attack time: 1 ms
Fallback: 1.5 sec per 20 dB decay
19” Rack Mount: 2U high.
Outline Dimensions: 483 mm(W) x 256 mm(D) x 89 mm(H)
Outline Dimensions: 19 inch(W) x 10 inch(D) x 3.5 inch(H)
90 - 264 VAC 50/60 Hz Autoselect, Fuse 4A HAC
Temperature 0 °C to 30 °C. Humidity 70% max (non-condensing)
6 kg (14lbs)
Product specifications and image subject to change without prior notice. See website for warranty details.
Bel (Digital) Audio Ltd. 3 Horwood Court, Bletchley, Milton Keynes, MK1 1RD. United Kingdom
Tel: +44 (0)1908 641 063 Fax: +44 (0)1908 645 985
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