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Lectrosonics DSR4 four channel digital slot-mount receiver, rear panel adapter not included
€ 4,773.00 List Price
As low as € 5,487.35 Our Price € 4,535.00 Our Price

The DSR4 digital receiver provides the highest level of RF and audio performance available with a versatile feature set in a compact design for field and location production. Settings can be made from the front panel with tactile buttons and color LCD interface, making the unit ideal for use in portable bag systems and on sound carts. An RF spectrum analyzer and SmartTune are built into the receiver to alleviate interference problems in an increasingly congested RF spectrum.

The mechanical design of the receiver fits into the Super-Slot ecosystem and combines field-proven features developed over many years of experience in motion picture and television production. To decrease weight, the DSR4 provides a four channel receiver in one unit powered by external DC. The receiver is also equipped with an IR port for data transfer between units. The machined aluminum housing and panels are surfaced with a hardanodized finish with laser etched markings to withstand the rigors of field production.

The RF gain stages in the front end use a newly developed design to provide low noise RF amplification, excellent sensitivity and extremely low susceptibility to intermodulation and de-sensitization.


  • four independent channels, compact design
  • two diversity options for maximum flexibility
  • latest generation of SR Series: compatible with huge existing ecosystem
  • compatible with D², HDM, Duet and DCHX Digital modes and all Hybrid modes
  • 24 bit/48 kHz digital for flawless audio
  • AES 256-bit, CTR mode encryption, with 4 different key policies available
  • high IP3 performance of +15 dBm for tough RF environments
  • analog and AES3 digital audio outputs
  • external DC powering options and USB input for firmware updates and data transfer


  • 1x quickstart guide
  • 2x AMJ-19 jointed SMA antennas
  • 2x AMJ-22 jointed SMA antennas


  • 1x quickstart guide
  • 2x AMJ-22 jointed SMA antennas
  • 2x AMJ-25 jointed SMA antennas


  • model A1B1: 470 MHz to 614 MHz
  • model B1C1: 537 MHz to 691 MHz
  • frequency selection steps: 25 kHz
  • frequency stability: +-0.001 %
  • front end bandwidth: ±5.5 MHz, @-3dB
  • sensitivity: 20 dB Sinad: 0.9 uV(-108 dBm) A weighted, 60 dB Quieting: 1.12 uV (-105 dBm) A weighted
  • AM rejection: >60 dB, 2 uV to 1 Volt
  • modulation acceptance: 85 kHz
  • spurious rejection: 85 dB
  • third order intercept:+15 dBm
  • diversity method: antenna phase switching (4 channel operation), vector diversity (2 channel operation)
  • antenna inputs: 50 Ohm, SMA female connectors
  • audio output connectors: interchangeable dSub connector adapters or camera slot interfaces, dual TA5 male (mini XLR) balanced output adapter, battery sled adapters with TA5 male outputs, front panel TA5 male for analog output channels 3 and 4

AUDIO PERFORMANCE (overall system):

  • frequency response: 25 Hz to 20 kHz (+0/-3 dB)
  • THD: 0.2% (typical)


  • frequency response: 25 Hz to 20 kHz (+0/-3 dB)
  • THD: 0.2% (typical)
  • input Dynamic Range: 125 dB (with full Tx limiting)
  • overall Latency (time delay): 1.4 ms with digital source, <2.9 ms with Hybrid TX
  • audio test tone: 1 KHz, -50 to +7 dBu, <1%THD


  • front panel: Color LCD display, Menu/Sel, Pwr/Back, Up/Down Arrow Buttons, USB Port, IR Port, USB port, IR port
  • rear panel: Proprietary connector for audio/power accessory panels.


  • external power: 9 to 17 VDC, 3.2 W, 225 mA at 12 VDC
  • weight: 408 grams w/o audio adapter
  • dimensions (W x H x D in mm): 82 x 31 x 140

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