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Electro-Voice Debuts RCM-28 Module

Electro-Voice has released the RCM-28 DSP and network module, designed for EV Tour Grade series power amplifiers.

New York, NY (March 11, 2013)—Electro-Voice has released the RCM-28 DSP and network module, designed for EV Tour Grade series power amplifiers.

The RCM is a dual-channel, digital controller module which, in addition to numerous DSP functions, boasts a redundantly implemented OMNEO network interface. Through IRIS-Net software, all Tour Grade amplifier network and system parameters can be supervised and controlled remotely.

The RCM-28 module is the first EV product to support the new OMNEO media networking architecture. With RCM-28 modules, Tour Grade series amplifiers can be integrated within OMNEO networks with up to 100 other devices without additional hardware. OMNEO is based on two key technologies: the media transmission component Dante from Audinate and the system-control component OCA (Open Control Architecture) developed by Bosch Security Systems together with the OCA Alliance. In combination, these allow the transmission of audio, and in the future also video, formats and the control of all devices via standard Ethernet with standardized protocols.

The RCM-28 offers a digital AES 3 (AES/EBU) input with a loop-through possibility and a dynamic range of 128 dB, whilst two analog inputs and the same number of analog outputs are available via XLR connections (116 dB SNR). The transmission of several hundred audio channels is possible over the network. Furthermore, in each case two input and output signals in OMNEO/Dante format—with a sampling rate of 48 kHz—can be received or transmitted. A third additional channel can also be transmitted for remotely monitoring the audio signal path at the amplifier. The module covers the frequency range from 20 Hz to 20 kHz, the internal latency being 1.5 ms (AES 3 In / Analog Out) and 2.375 ms (Analog In / Out) respectively. The A/D and D/A converters operate in 24-bit resolution and the DSP processing of the 500 MIPS dual core processors is performed in 48-bit resolution.

In addition to standard functions for signal processing, multi-band parametric equalizers, delays for inputs and outputs (as well as additional FIR filters on the output side) and crossovers and limiters are all available. Two RJ-45 ports for the OMNEO network and four freely configurable GPIO control ports (2 x GP1, 2 x GPO) serve as interfaces.