SL Rack Receiver DW

ARCHITECT‘S SPECIFICATION

The stationary receiver shall be for use with a companion transmitter as part of a wireless RF transmission system. The receiver shall operate in the license-free 1.9  GHz band (frequency ranges shall be from 1,880 to 1,930  MHz, depending on country-specific regulations) and shall use automatic frequency management to find and select the best available frequency in the spectrum and to automatically start the transmission. The receiver shall also incorporate automatic interference management, allowing it to inaudibly and seamlessly change to another frequency if any interference is detected. Time Division Multiple Access (TDMA) and space diversity shall be used to provide for increased transmission reliability. The receiver shall be menu-driven and shall have an OLED display showing the name of the wireless link, selected sound profile, de-esser and Automatic Gain Control (AGC) settings, AF level, RF signal level, lock status, transmitter mute switch status, transmitter RF output power, and transmitter battery status. The receiver shall be fitted with a jog dial for menu navigation and shall feature dedicated pairing, escape and power buttons. The receiver shall provide a low-cut filter, speech-optimized sound profiles and a 7-band graphic equalizer for custom audio settings. The receiver’s AF frequency response shall range from 20 – 20,000  Hz. The dynamic range shall be >  120  dB(A). Total harmonic distortion (THD) at 1  kHz shall be typical 0.1  %. Signal-to-noise ratio shall be >  90  dB(A). The receiver’s RF sensitivity shall be -90  dBm. RF output power of the receiver’s back channel shall be adaptive and up to 250  mW (country-specific). The audio output shall utilize a balanced XLR-3M socket with a maximum output of +18  dBu along with two unbalanced RCA sockets with a maximum output of +6  dBu. The receiver shall feature automatic gain optimization. Two reverse SMA sockets shall be provided for connecting the antennas. The receiver shall have an RJ-45 network socket and shall support IPv4 and IPv6 network addressing. In addition, the receiver shall support the Media Control Protocol to provide for remote control and status monitoring directly from a software solution like the Sennheiser Control Cockpit or a media control system (e.g. Crestron and AMX). The receiver shall operate on 12  V  DC power supplied from the NT  12-4C power supply unit (100-240  V  AC, 50/60  Hz, for use in the USA, the UK, and Europe) or the NT  2-3 power supply unit (100-240  V  AC, 50/60  Hz, for use in countries other than the USA, the UK, and Europe). Power consumption shall be 350  mA. The dimensions shall be approximately 168 x 212 x 43  mm (6.61" x 8.35" x 1.69"). Weight shall be approximately 828  grams (1.83  lbs). Operating temperature shall range from -10  °C to +55  °C (+14  °F to +131  °F). 

The receiver shall be the Sennheiser SL Rack Receiver DW.

SPECIFICATIONS

AF frequency response: 20 to 20,000  Hz
Dynamic range: > 120 dB(A)
THD (1 kHz): typ. 0.1 %
Audio sampling: 24 bit/48 kHz  
Signal-to-noise ratio: > 90 dB(A)
Encryption: AES 256
RF frequency ranges:                
- EU: 1,880 to 1,900 MHz                
- USA: 1,920 to 1,930 MHz                
- Brazil: 1,910 to 1,920 MHz                
- Taiwan: 1,880 to 1,895 MHz                
- Japan: 1,893 to 1,906 MHz
Modulation: GFSK with back channel
Transmission method: TDMA, space diversity
Latency: 19 ms
Relative air humidity: max. 95 %
Temperature range*:                
- Operation: -10 °C to 55 °C (14 °F to 131 °F)                
- Storage: -20 °C to 70 °C (-4 °F to 158 °F)                
* The temperature range is influenced by the battery characteristics
RF sensitivity: < -90 dBm
RF output power back channel: adaptive, up to 250 mW (country-specific)
XLR output level, balanced: max. +18 dBu
RCA output level, unbalanced: max. +6 dBu
Audio effects :                
- Low cut: -3  dB at 120  Hz                
- Equalizer: 7-band graphic equalizer with sound presets                
- Sound profiles: - female voice - male voice - instrument/ media
Display: OLED
Network protocol: Media Control Protocol, TCP/IP IPv4 (DHCP, manual)/ IPv6
Power supply: 12 V DC
Current consumption: 350 mA
AF connection sockets: XLR/2 x RCA
Antenna sockets: 2 x reverse SMA
Network sockets: RJ-45
DC socket for power supply: hollow jack
Weight: approx. 828 g