Pro-Music-News Sound Section

Sennheiser presents the EM 3732 twin receiver at prolight+sound show 2007

Introduced at prolight + sound show Frankfurt 2007, Sennheiser's EM 3732 twin receiver with 90MHz switching bandwidth and operating convenience provides excellent audio qualities, numerous connection options, scanning function, and transmitter synchronization via infrared interface.
This twin receiver with its 90MHz switching bandwidth provides versatility within the UHF spectrum while maintaining maximum selectivity. “The RF spectrum is getting ever more crowded, but the EM 3732 is so flexible that the user will have sufficient alternative options to avoid interference, especially for multi-channel systems,” says Sven Boetcher, Product Manager for Professional Systems. The receiver features six user-selectable fixed frequency banks and one user bank with up to sixty channels that can be programmed in increments of 5kHz. Within a frequency bank the EM 3732 automatically searches for free frequencies. “This frequency scan, plus the synchronization function and the numerous connection options will significantly simplify the job of the sound engineer. The EM 3732 is the ideal companion for shows on tour.”
For large multi-channel applications, the EM 3732 is suitable due to its infrared interface, which programs the SKM 5200, SK 5212 and SKP 3000 transmitters with the receiver data in minimum time. “This is very simple and quickly done via a Hot Key,” explains Boetcher. Due to the integrated antenna splitter, up to eight twin receivers can easily be daisy-chained. The receiver system can be remote-controlled and monitored using the provided “Wireless Systems Manager” software. For this purpose, the PC is simply connected to the Ethernet socket of the EM 3732.
Twin receiver EM3732 by Sennheiser
The EM 3732 boasts a user interface which guides users through intuitive operating menus using easily remembered icons. Navigation is done via a jog dial, and frequently used menu items can be accessed directly via convenient hot keys. Both receivers can be monitored — individually or simultaneously — via headphones. The receiver’s front panel layout is clear and structured and its OLED display offers particularly high contrast and intensity.
The level of the receiver’s audio output signal can be set in increments of 1dB and is available at a transformer-balanced XLR-3 output and at a digital AES3/EBU audio output for digital mixing consoles. The receiver can provide the sampling rate (44.1kHz, 48kHz, 88.2kHz or 96kHz/24 bit) or it can be synchronized by the audio mixer via a BNC connection. The receiver’s HiDyn plus expander is DSP-based.
The EM 3732 twin receiver is complemented by a range of convenient antenna accessories. The rugged AB 3700 broadband antenna amplifier is designed for a frequency range of 470-866MHz and amplifies the received signal by 5 to 15dB. The antenna booster is fitted with two multi-color LEDs for indicating the amplification visible even from a distance. Unlike conventional antenna amplifiers, the AB 3700 will open a second, low-attenuation (-6dB) signal path in case of power cuts. Further, two active receiver antennas are available: the directional AD 3700 and the omni-directional A 3700.
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