RCF PR-4093 Preamplifier ( 9 IN / 3 OUT)

Versatile 9-In 3-Out Audio Preamplifier for Paging and Music Applications
The RCF PR-4093 is a rackmount preamplifier built for pro audio environments requiring clean signal distribution across multiple inputs and outputs. It supports six mic/line combo inputs on XLR with phantom power selection, three stereo line-level inputs on RCA, and a trio of outputs offering stereo, mono, and dedicated mic routing. Designed for paging systems, background music, and announcement zones, this preamp blends input flexibility with operator-friendly controls for seamless signal management.

Multiple Balanced XLR Mic and Line Inputs with Phantom Power
This preamp gives you six XLR channels that can function as either microphone or line inputs, offering precise gain handling for a variety of audio sources. Each channel includes selectable 48V phantom power, giving you full compatibility with condenser microphones in installed PA systems or live setups. The signal presence LEDs provide immediate visual confirmation of activity on each channel, helping avoid guesswork during troubleshooting or adjustments.

Stereo RCA Inputs for External Playback Devices
In addition to the balanced mic/line inputs, the PR-4093 includes three stereo RCA connectors for bringing in music playback sources such as CD players, media streamers, or DJ gear. These inputs are ideal for background music zones or ambient playback in restaurants, hotels, houses of worship, and retail environments. With this flexible combination of input types, the unit easily adapts to modern and legacy gear.

Priority Paging Control with VOX Circuit on Input One
The first input offers a built-in priority function triggered via voice activation (VOX circuit). This feature is especially useful in paging systems where announcements must override the background music. When audio is detected on this input, the system automatically mutes or lowers the volume of the other sources, ensuring announcements are heard clearly across all connected zones.

Three Independent Output Options for Complex Routing
On the output side, the PR-4093 is equipped with a stereo XLR output that includes a three-band EQ accessible from the front panel, allowing for tonal shaping without needing a separate processor. A mono output on 1/4" jack and a dedicated mic output also on 1/4" jack round out the routing options. There's also a pair of RCA connectors for sending the mix to a recording device, making this a highly adaptable centerpiece for zoned sound systems or AV installations.

Emergency Power Support and Rack-Ready Design
The unit is ready for permanent installations with both standard AC power operation and 24V DC emergency backup support. This ensures uninterrupted operation in critical paging systems like schools or public safety buildings. Its compact 1RU 19-inch rackmount form factor makes it easy to integrate into equipment racks, saving space without sacrificing functionality.

Simple Front Panel Controls and LED Monitoring
Clear visual feedback and intuitive controls make the PR-4093 a practical choice for AV technicians and facility managers alike. Output level LEDs allow for at-a-glance signal monitoring, while front-panel tone controls ensure quick adjustments on the fly. Whether you’re managing distributed audio in a commercial setting or setting up a voice-over-music paging solution, this unit provides professional performance in a straightforward layout.