Used Electrovoice RCM‑28
Used Electrovoice RCM-28 units offer a dual-channel digital control module with DSP processing capability equivalent to one channel of the Electro-Voice Dx46 system processor, plus integrated OMNEO/Dante audio networking over standard Ethernet. Second-hand examples are popular with touring and installation engineers seeking flexible network-controlled amplification. Scroll down to see the used RCM-28 listings currently available.
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Electrovoice RCM‑28 specifications
| Brand | Electrovoice |
| Segment | Audio |
About the Electrovoice RCM‑28
The Electrovoice RCM-28 is a dual-channel digital control module designed for installation into Tour Grade series power amplifiers. Once fitted, the amplifier's network and system parameters can be supervised and controlled remotely via IRIS-Net. The module supports the OMNEO media networking architecture, allowing integration into networks of up to 100 devices over standard Ethernet using standardized protocols, with each module able to send or receive two audio channels in OMNEO/Dante format at 48 kHz. A third channel is available for remote audio monitoring. The RCM-28 also features an AES/EBU digital input with loop-through, two analog inputs and two analog outputs via XLR connections with 116 dB SNR, 24-bit A/D and D/A conversion, a 128 dB dynamic range on the digital input, and ultra-low latency DSP including FIR-Drive processing. Control network compatibility with the OCA protocol is also included.
Electrovoice RCM‑28 — buyer FAQs
What is the Electrovoice RCM-28 and what does it do?
The Electrovoice RCM-28 is a dual-channel digital control module that installs into Tour Grade series power amplifiers, adding DSP processing equivalent to one channel of the Electro-Voice Dx46 system processor. Once fitted, the amplifier's network and system parameters can be supervised and controlled remotely via IRIS-Net, and the amplifier gains full OMNEO/Dante audio networking capability over standard Ethernet.
Which amplifiers is the RCM-28 compatible with?
The RCM-28 is designed to work in any Electro-Voice Tour Grade series power amplifier. Installing the module gives a Tour Grade amplifier remote control via IRIS-Net, OMNEO/Dante audio networking, and OCA protocol control network compatibility, without requiring a separate external processor or network bridge.
What audio connections and networking does the RCM-28 provide?
The RCM-28 provides two analog inputs and two analog outputs via XLR connections with a 116 dB SNR, plus an AES/EBU digital input with loop-through and a 128 dB dynamic range. Networking runs over CAT5, supporting OMNEO/Dante format at 48 kHz, with each module able to send or receive two audio channels and a third channel available for remote audio monitoring. Networks of up to 100 devices are supported.
Who makes the RCM-28 and where does it sit in the Electro-Voice range?
The RCM-28 is made by Electro-Voice (EV), an American professional audio manufacturer with a long history in microphones, loudspeakers, amplifiers and signal processing for sound reinforcement and commercial installation, currently part of the Keenfinity Group. The RCM-28 sits within EV's Tour Grade amplifier ecosystem as an add-in module, and its DSP capability is referenced against the Dx46 system processor, another product in the EV processing range.
What should I check when buying a used RCM-28?
Confirm the module has not been physically damaged during removal or installation, and verify it powers up and is recognised correctly when seated in a Tour Grade amplifier. Check that analog XLR inputs and outputs, the AES/EBU loop-through, and the CAT5 network port all function. Used RCM-28 pricing typically varies with condition and whether original accessories are present. Listings on this page show current availability, and each carries a 21-day warranty covering major functional faults; further detail is in the buying guide at 10kused.com/used-av-equipment-guide/.
