Behringer SD16 IO Stage Box 16 Mic Preamps

SD16 Great Price! A single Cat 5e cable connects the stagebox, and up to three stageboxes can be cascaded together for a total of 48 inputs and 24 balanced outputs.

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The Behringer SD16 – I/O Stage Box with 16 Preamps is designed to connect the onstage talent to the Front of House (FOH) console. The stagebox provides 16 remote-controlled Midas-designed preamplifiers as well as eight servo-balanced analog XLR outputs. Two of the programmable inputs are compatible with Hi-Z sources so you can connect keyboards, acoustic, and bass guitars, etc. A USB port is included for fast and easy system updates via your PC.

An integrated 2-port Ultranet distribution hub is included for direct connection to the company’s P16-M personal monitor mixers without the need for any additional hard wire. The compact unit features rugged protective bumpers and the option to be rack mounted using the included rack ears.

A single Cat 5e cable connects the stagebox, and up to three stageboxes can be cascaded together for a total of 48 inputs and 24 balanced outputs. An onboard Ultranet distribution hub provides power and 16 channels of audio to two of the company’s Powerplay P16-M personal monitor mixers.

Remote Controllable Preamps

Includes award-winning Midas-designed microphone preamplifiers with 48V phantom power and destination routing

Servo-Balanced XLR Outputs

Allows you to connect to your amp racks, active loudspeakers, or monitors using Cirrus Logic 24-bit converters


Transmits up to 16 independent channels of 24-bit digital audio and control data via a single Cat 5e cable between compatible digital devices

  • Klark Teknik AES50
  • 48 bidirectional audio channels over Cat 5e cable (48 kHz)
  • 24 bidirectional audio channels over Cat 5e cable (96 kHz)
  • Single cable duplex interconnection for audio and sample clocks
  • Ethernet physical layer audio data transmission
  • High channel count and low deterministic latency
  • Accurate phase-aligned clock distribution.
  • Comprehensive error detection and management
  • Provision for redundant networking
  • Minimal configuration – total ease of deployment and use
  • Ethernet TCP/IP protocol-compatible auxiliary data channel
  • Royalty-free implementations available as Xilinx FPGA cores
  • OEM modules available from developer partners


  • A/D and D/A Conversion 24-bit at 44.1/48 kHz, 114 dB dynamic range
  • Latency 1.1 ms


  • Preamps 16 (Programmable mic preamps, designed by Midas, balanced XLR/TRS combo)
  • Line Outputs 8 (balanced XLR)
  • Networking AES50 SuperMac Networking, Neutrik etherCON: 2
  • USB 1x type B port (for system updates)
  • Inputs 48
  • Outputs 24
  • RJ45 Connector Ultranet: 4x


  • Design Midas
  • THD N <0.005%, A-weighted (20 dB gain, 0 dBu out)
  • Phantom Power 48 V, switchable per input
  • Equivalent Input Noise -128 dB, A-weighted, XLR (input shorted)
  • CMRR At 20 dB gain (typical): >60 dB
  • At 40 dB gain: >65 dB


  • Frequency Range 10 to 22,000 Hz
  • Dynamic Range Analog mic in to analog out (typical): 105 dB
  • A/D Dynamic range, mic preamp to converter (typical): 109 dB
  • D/A Dynamic range, converter and output: 108 dB
  • Crosstalk 90 dB at 1 kHz, adjacent channels
  • Impedance Mic input XLR jack, unbalanced/balanced: 5 kOhms
  • Hi-Z input TRS jack, unbalanced/balanced: 1 MOhm
  • Line input impedance TRS jack, unbalanced/balanced: 20 kOhms
  • Input Level Non clip maximum level, TRS: 21 dBu


  • Output Impedance 50 ohms, XLR, unbalanced/balanced
  • Output Level 4 dBu, XLR, nominal/maximum
  • Residual Noise XLR: -88 dBu, A-weighted

Digital Audio I/O

  • Networking AES50 SuperMac networking at 48 or 44.1 kHz, 24-bit PCM: 2x 48 channels, bidirectional
  • AES50 SuperMac Cable Length: Up to 328′ (100 m)
  • Ultranet networking at 48 or 44.1 kHz, 16-bit PCM: 1x 16 channels, unidirectional
  • Ultranet Cable Length: up to 246′ (75 m)
  • Ultranet Phantom power for P16-M personal mixers: 2x powered outputs


  • Power Supply 100 to 240 V (50/60 Hz)
  • Power Consumption 45 W


  • Operating Temperature 41 to 104?F (5 to 40?C)
  • Dimensions 13.1 x 5.9 x 5.5″ (333 x 149 x 140 mm)
  • Weight 7.1 lb (3.2 kg)

Packaging Info

  • Package Weight 9.7 lb
  • Box Dimensions (LxWxH) 15.1 x 8.4 x 7.8″
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