Radial Engineering mPress Press-Box Master Section, 2 Mic Inputs, Limiter, Program In, 8 Outs

The Radial mPress is a modular press box that distributes audio to many destinations simultaneously, able to serve a community-sized press gallery or expanded for massive international events.

The design begins with the mPress, a master head distribution amplifier that is equipped with two microphone/line inputs, able to take signals from two microphones or directly from a mixer's speaker outputs. 48V phantom power is provided for condenser microphones, and a built-in limiter to prevent overload from overly rambunctious orators or other hot signals. Eight balanced mic outputs may be used to supply feeds to a small press gathering.

For larger system requirements, a series of modular Exo-Pods may be deployed. Sold separately, these external modules are connected using standard mic cables and feature ten balanced mic outputs and four mini 3.5mm TRS connections to feed portable recorders or hand-held video cameras. In order to eliminate hum and buzz caused by ground loops, stray DC currents and less than ideal powering systems, all outputs are transformer isolated.

The mPress’s modular approach replaces the spaghetti of cables that usually hampers setups with an orderly system than enables one to create zones for various groups. From each of the mPress XLR outputs as many as four Exo-Pods may be chained together, for a total of 320 microphone and 128 recorder outputs. A built-in 1 kHz test tone provides everyone with a reference level and the built-in headphone amplifier helps when trouble shooting. To simplify setups, a main stereo output is available to feed a pair of powered speakers and broadcast the event to an audience. Separate audio inputs also enable the mPress to play background music while waiting for the guest speaker to appear.

Signal splitting has never been more intuitive thanks to the mPress! No matter how many lines you need to run, this amplifier distributes them with ease. Simplify your set up today!

Features

• Modular press box takes mic or line signals and splits 8 ways on its own
• Supports up to 448 outputs with Exo-Pods (sold separately)
• Completely analog, no digital trickery
• Active drive with transformer isolation to eliminate noise
• Can play background music when on standby

Specifications

• Audio Circuit Type: Low Noise Active Buffer
• Frequency Response: 20 Hz to >20 kHz, +0/-1.5 dB
• Total Harmonic Distortion: < 0.001% @ +4dB
• Dynamic Range: > 112 dB
• Microphone: 4 x XLR female
  • Input Impedance: 7 kΩ
  • Maximum Gain: +51 dB
  • Noise Floor: -94 dBu
  • Low-cut Filter: 100 Hz (12 dB/Octave)
  • Limiter Threshold: -10 to +5 dBu Output
  • Limiter Ratio: > 20:1
• Program: 2 x 1/4" jacks
  • Input Impedance: 22 kΩ
  • Maximum gain: +19 dB
• Output: 2 x XLR male gallery, 2 x XLR main, 6 x XLR male Exo-Pod/gallery, 2 x 1/4" main
  • Clip Level: +24/+17 dBu (main)
  • Intermodulation Distortion: 0.002% (main)
  • Output Impedance:
    • Main: 880 Ω
    • Exo-Pod: 115 Ω
  • Noise: -80/-92 dBu (Exo-Pod, program to main)
• General
  • Power: Ω15V/+5V Custom Power Supply
  • Construction: 14-gauge steel chassis & outer shell
  • Dimensions (H x W x D): 1.62" x 19" x 7" (4.13 x 48.26 x 17.8 cm)
  • Weight: 6.25 lb
  • Conditions: For use in dry locations only, 5-40°C