LEDSR4941

DSR4-941

Lectrosonics

The Lectrosonics DSR4 is a lightweight quad-channel digital slot receiver engineered for mobile sound production, sports video, reality TV, and anywhere a wireless system must provide mission-critical signal stability and clear, transparent 24-bit / 48 kHz sound. It is compatible with the company's mono digital transmitters (DBSM, DBu, DHu, DPR, DPR-A) and stereo digital transmitters (DCHT, M2T), and backward-compatible with any Digital Hybrid Wireless transmitter.The DSR4 provides four independent receiver channels at the highest level of RF and audio performance available, a versatile, field-proven feature set, selectable AES3 or analog mic-/line-level outputs, and next-generation capabilities in the Unislot/Superslot form factor for ENG, field, and location production. Settings can be made from the front panel with tactile buttons and a color LCD interface, making the unit ideal for use in portable bag systems, mounted in or on cameras, and on sound carts. The built-in RF spectrum analyzer and SmartTune function help you quickly find a clean frequency to alleviate interference problems in an increasingly congested RF spectrum.Built for the Rigors of the Field The mechanical design of the DSR4 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 packs four channel receivers in one unit powered by external DC.The 2-way IR sync makes quick work of setting up matching transmittersThere is a built-in TA5 male connector on the faceplate for use with cameras or other docks not offering analog audio channels through the slot connector channels 3 and 4, external audio outputsThe machined aluminum housing and panels are surfaced with a hard-anodized finish with laser etched markings to withstand the rigors of field production.Two Diversity Modes for Mission-Critical Wireless For versatility, the DSR4 offers both antenna Phase Switching diversity (4-channel operation) or Vector diversity (2-channel operation).4-channel operation: each channel combines signals from both antennas in or out of phase, depending on field strength at each antenna and which combination yields the best results.2-channel operation: receivers can be paired for Vector diversity mode. The Vector subsystem smoothly and continuously combines RF signals from both channels, with differing phase angles in order to obtain maximum energy.It is possible to have one Vector pair (say, channels 1 & 2) and two independent antenna phase channels (say, 3 & 4) for a total of 3 channels of independent operation.The two RF gain stages in the front end of each channel provide low-noise RF amplification, excellent sensitivity, and extremely low susceptibility to intermodulation and desensitization.High IP3 Performance for Tough RF Environments The DSR4 offers one of the highest Third-Order (IP3) performances at +15 dBm, compared with +5 to +8 dBm provided by typical audio RF receivers. High IP3 performance allows the receiver to better eliminate the negative impact caused by third-order intermodulation artifacts, have a better signal-to-noise ratio, and also more reliably in today's tough RF environments. Finding Clear Frequencies with SmartTune SmartTune is the easiest and fastest way to scan the local RF spectrum and find clear operating frequencies. The receiver scans through its tuning bandwidth and automatically finds empty areas within the tuning range that have little or no RF energy. The receiver will then set itself to a frequency within an empty area and prompt you to continue or use the IR function to sync to a transmitterSmartNR Noise Reduction With a noise floor at -120 dBV and a frequency response up to 20 kHz, high-frequency noise in the source audio is more apparent than in conventional wireless systems. The SmartNR algorithm has three modes. When Off, no noise reduction is performed. When Normal is selected, enough noise reduction is ap