Bel Digital Audio BM-AV1-E16SHD A/V Monitor with Dolby decoding

High-quality 16 channel audio/video monitoring unit with Dolby decoding and Loudness measurement

The BM-AV1-E16SHD is a 1U high-quality audio/video monitoring unit, capable of monitoring 3G/HD/SD video and multi-channel audio sources. This class leading product builds on Bel’s reputation for providing very high quality and reliable broadcast solutions.

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£4,860.00 £4,050.00
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The BM-AV1-E16SHD provides a pair of auto-detecting 3G/HD/SD SDI inputs and accepts 8 analogue audio inputs and 8 AES-3id pairs (also accepts SPDIF inputs).

Integral to the BM-AV1-E16SHD is a high-quality OLED video display providing exceptional clarity and image definition. (The display comes with programmable features to ensure extended display lifetime.) The selected audio inputs are displayed on high-resolution multi-coloured LED bargraphs (two banks of 8) providing long term reliability. Selected audio channels are also provided as AES-3id and analogue outputs on the rear panel. Output levels can be fixed or controlled by the front panel volume control. An integral audio mix system enables any demuxed audio channel to be mixed on either, or both speakers, whilst maintaining a constant output level.

An SDI reclocked loop-through connector is provided enabling connection to downstream equipment.

Loudness measurement to ITU-R BS.1770-3/EBU R128 standards is available and can be displayed in four different ways, with each showing different combinations of Loudness measures.

A Dolby decoder is included in the BM-AV1-E16SHD as standard. When enabled it can decode Dolby® E, Dolby® Digital and Dolby® Digital  Plus material from any of the AES inputs, or from embedded audio data within the SDI bitstreams. Eight Dolby mix-down algorithms are available directly from a front panel rotary control. Comprehensive metadata reporting is also provided via the OLED display.

Two high quality and magnetically shielded speakers are mounted on the front panel, providing together with a ducted bass system provide high-SPL audio reproduction. A limiter circuit is included to prevent speaker damage. Either speaker can monitor the sum of any combination of inputs.

A headphone socket is provided on the front panel.

The BM-AV1-E16SHD is suited to operation within Master Control Rooms, Outside Broadcast Vehicles, or indeed anywhere where audio monitoring of SD, HD and 3G SDI sources is required, especially when within a space conscious environment.

  • High-quality audio/video monitor unit with discrete 3G/HD/SD, Dolby® E, Dolby® Digital, Dolby® Digital Plus decoding
  • Loudness measurement to ITU-R BS.1770-3/EBU R128
  • Comprehensive I/O facilities, including 2 x SDI, 8 x AES-3id pairs (accepts SPDIF inputs), 8 x analogue
  • High resolution, tricolour level meters with adjustable colour transition points & peak-hold facility. Seven standard scales & ballistics, user assignable
  • Multiple configuration options available, enabling efficient integration
  • 16 channel monitoring with ability to monitor any channel on either speaker, including combinations and groups
  • Multiple preset controls enabling fast recall of channel routing
  • Auto-scaling facilities are available on the audio outputs when selecting multiple sources
  • High resolution video display
  • Fully RoHS compliant
More Information

Audio Inputs

  • Digital AES3-id: 8 x 75W ohm (BNC connector)
  • Sample Rate: 48 kHz
  • Analogue: 8 x differential impedance 25k ohm. 25 way ‘D’ type connector; 2 x XLR3F



  • Input: 2 x 3G/HD/SD SMPTE 424M, 259M, 296M, 274M, 292M
  • Output: 1 x SDI loopthrough



  • Bargraphs: 26 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: 8 x 75 ohm BNC

  • Digital AES-3id


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
  • Shielding: Magnetic


Scales and Ballistics

  • DIN PPM: Overall dynamic range: 55 dB (+5 to -50 dB) Attack time: 10 mSec Fallback: 1.5 Sec per 20 dB decay
  • BBC PPM: Overall dynamic range: (+12 to -12 dB from mark 7 to mark 1) Attack time: 10 mSec Fallback: 2.85 Sec (from mark 7 to mark 1)
  • VU: Overall dynamic range 23 dB (+3 dB to -20 dB) Attack time: 300 mSec Fallback: 300 mSec
  • AES/EBU: Overall dynamic range 60 dB (0 to -60 dB) Attack time: 1 mSec Fallback: 1.5 Sec per 20 dB decay



  • 19” Rack Mount: 2U high.
  • Outline Dimensions: 483 mm(W) x 256 mm(D) x 44 mm(H) Outline Dimensions: 19 inch(W) x 10 inch(D) x 1.7 inch(H)


  • 90 - 264 VAC 50/60 Hz Autoselect, Fuse 4A HAC


  • Temperature 0 °C to 30 °C. Humidity 70% max (non-condensing)



  • 4 kg (8.8lbs)