AKG Acoustics GmbH

SR 4000



  • True diversity receiver with all-metal case
  • 30 MHz wide UHF band with up to 1200 selectable frequencies
  • Pilot tone data transmission for battery status monitoring and tone code squelch
  • PC interface for remote control and status monitoring; logic output for controlling external devices
  • Backlit, programmable color display and jog wheel for ease of use
  • Auto Setup, Environment Scan, and Rehearsal functions for easy setup
  • Integration into a HiQnet™ system with optional HUB 4000 Q

The new SR 4000 is a state-of-the-art, true diversity receiver that provides maximum ease of use and the most useful functions in its class. Many features of the SR 4000 were never before available or limited to extremely expensive systems.

The accurate battery life readout is an invaluable advantage in live sound applications. The transmitter uses a pilot tone to transmit battery status data to the receiver that displays the remaining battery capacity in hours.

The pilot tone decoder also detects and displays other important information including the current position of the MUTE switch on the transmitter.

The integrated software allows an easy and fast setup of WMS 4000 with automatic setup and frequency scanning. A logic output allows remote control of specific functions on an external device, e.g., an automatic microphone mixer.

Naturally, the SR 4000 operates in an extremely wide UHF band (30 MHz) and each frequency preset provides up to 24 intermodulation-free subchannels*. The maximum number of selectable frequencies is 1200. The large, backlit color display and a jog wheel make the SR 4000 easy to use and a programmable warning light indicates selectable critical conditions within the system. Housed in a half-rack, all-metal case, the SR 4000 is the most compact, reliable, and powerful UHF receiver in its price bracket.

The SR 4000 can be integrated into a HiQnet™ system with the optional HUB 4000 Q. With the PC control software System Architect™ the SR 4000 can be remote controlled and monitored from a PC. The setup and configuration of the frequency management of the entire wireless system is incredibly easy within System Architect™ with tools like RF Monitor, Device Manager, Environment Scan and Auto Setup.

* The number of channels that can be used simultaneously depends on local frequency plans.

 System components for multichannel systems

 HiQnet™

© 2010 AKG Acoustics GmbH

The wireless receiver shall operate over a 30 MHz UHF frequency range in one of 6 bands from 680 MHz to 863 MHz, with a wide range of possible frequency settings. The wireless microphone system shall incorporate factory-optimized sets of both sending and receiving frequency modules that are built into both transmitters and receivers. Each frequency set shall comprise a 30 MHz UHF band and offer up to 1,200 discrete operating frequencies within that band. The receiver shall operate on the true diversity principle, and the switching circuit shall be inaudible. Total harmonic distortion at 1 kHz for rated deviation shall be no greater than 0.3%. The receiver shall provide for a manual squelch adjustment as well as an automatic squelch option (tone code squelch) for optimum system operation. Audio output shall include a balanced XLR connector as well as an unbalanced 6.3 mm / 1/4-inch jack connectors. The output from the 3-pin XLR-type connector shall be adjustable in 3 steps (-30, 0, +6 dB). A data port for connecting a pc-controlled network and logic out connector shall be provided. The receiver shall be controlled by a jog wheel and shall provide a backlit color display as well as a programmable LED ring (red/green) showing the overall system status. The wireless receiver shall be the AKG Acoustics Model SR 4000.
 


Carrier frequency range650 to 680, 680 to 710, 720 to 750, 760 to 790, 790 to 820, 835 to 862 MHz
Audio bandwidth35 to 20,000 Hz
THDtyp. <0,3%
Signal/noise ratio120 dB (A)
ModulationFM
Audio outputsbalanced 3-pin XLR; unbalanced TS 1/4" jack; output level adjustable to -30, 0, +6 dB
Dimensions200 x 44 x 190 mm (7.8 x 1.7 x 7.4 in.)
Net weight972 g (2.2 lbs.)
Patent(s)Remaining playing time (Patent no. AT 408.280, GB 2.349.230, US 6.344.730)