Radial (R800 1112) Direct Box - Mono

Passive with XLR, RCA, 1/8", and 1/4" Inputs

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What's in the box:

  • Radial Engineering ProAV1 - Audio/Video Passive Direct Box
  • Three (3) Year Warranty

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The Radial Engineering ProAV1 can accept audio from iPods, CD players, computers and video decks. Through the use of a resistive mixer, it seamlessly merges stereo signals to mono without any signal degredation. This little box is the ideal solution for any event that requires audio and video applications to be run at the same time – especially when quick setup and tear down are required. The ProAV1 features a variety of stereo inputs that are merged via a resistive mixer to mono, greatly simplifying signal management. Custom wound transformers are employed that are able to withstand exceptionally hot levels while maintaining linearity from 20Hz to 18.5kHz.


  • Pro 'Swiss Army knife' direct box for multi-media
  • Easy to use passive ultra-quiet design
  • Eliminates ground loops causing hum and buzz
  • Handle huge transients without distortion

Specifications for the Radial (R800 1112) Direct Box

{ "Audio circuit type:" : "Passive, transformer based", "Transformer:" : "Eclipse ET-DB2, 12:1 ratio", "Number of channels:" : "Single channel (mono)", "Frequency response:" : "20Hz ~ 18.5KHz (± 0.2dB) ", "Dynamic range:" : "128dB", "Total harmonic distortion:" : "0.01% from 20Hz~20kHz @-10dB", "Phase Deviation:" : "1° @ 100Hz; 8° @ 20Hz ", "Input Impedance:" : "140k Ohms, unbalanced ", "Output Impedance:" : "150 Ohms, balanced ", "Common Mode Rejection Ratio:" : "100dB @ 60Hz", "Maximum Input:" : "+18dB @ 20Hz ", "Features" : { "Input pad, Mono Sum, Ground lift" : "", "Input Connectors:" : "1/4", RCA, 3.5mm TRS, XLR", "Output Connectors:" : "XLR", "Extras:" : "1/4" thru, RCA thru" }, "General" : { "Construction:" : "14 gauge steel chassis & shell", "Size (L x W x D):" : "3.25” x 5” x 1.875”", "Weight:" : "0.73kg (1.6 lbs)", "Shipping size (L x W x D):" : "102 x 76 x 165mm (4.00" x 3.00" x 6.50")", "Shipping weight:" : "0.87 kg (1.92 lbs)", "Power:" : "Passive, no power required ", "Conditions:" : "For use in dry locations only between 5°C and 40°C" } }

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