• -3%

Radial Engineering Pro D8


1.199,00 €
1.166,00 € -3%
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Niedrigster Preis in den letzten 30 Tagen: 1.166,00 €

8-channel Rackmount DI


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Radial Engineering Pro D8

 

Passive 8-Channel Rackmount Direct Box

The ProD8 is a high performance 8-channel passive direct box optimized for keyboard rigs in professional touring, with redundant 1/4″ inputs for each channel and a completely passive design that requires no power to operate.

Professional performance

The ProD8 features up to 8 direct box outputs in a single 1RU rack space for professional touring, with dual ¼" inputs on each channel to incorporate a backup system or connect up to 16 channels of audio at once. A ¼" TRS effects insert jack on each channel allows for connection to various effects devices while adding greater routing options, while a thru-put jack delivers a direct feed to the artist's playback system. The front panel features isolated XLRs for balanced low-noise outputs, each equipped with ground lift and 180° polarity reverse switches.

Transformer driven for greater headroom & low noise

The engine inside the ProD8 is a custom wound Eclipse ET-DB2 transformer that performs both the impedance matching and balancing. Linear from 20Hz to 20kHz, it is able to withstand the extreme dynamics common with today's digital keyboards. Unlike active circuits that overload and square wave when the rail voltage is exceeded, transformers saturate. This means that as the signal increases, the ProD8 naturally rounds out the tone producing a warm Bessel curve reminiscent of the very best vintage audio gear. The other significant advantage to this passive design is 100% galvanic isolation between the source and destination, which eliminates hum and buzz caused by ground loops.

Adaptable Configuration

To enhance setup options, the Radial ProD8 is equipped with reversible rack ears. This handy feature allows the system tech to position the inputs on the front of the rack when interfacing with external keyboards or have them inside if the setup is predominantly equipped with rack modules.

Specifications

  • Audio circuit type: Passive, transformer based
  • Transformer: Eclipse ET-DB2, 12:1 ratio
  • Number of channels: 8
  • 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
  • Maximum Input: +18dB @ 20Hz

Features

  • Input pad, 180° polarity reverse, Ground lift
  • Input Connectors: 1/4"
  • Output Connectors: XLR

General

  • Construction: 14 gauge steel chassis & outer shell
  • Size (L x W x D): 19" x 6.25" x 1.75" (48.3cm x 15.875cm x 4.45cm)
  • Weight: 7.2lb (3.26 kg)
  • Shipping size (L x W x D): 22" x 10.375" x 4.5" (55.9cm x 26.4cm x 11.4cm)
  • Shipping weight: 8.30lb (3.76 kg)
  • Power: Passive, no power required
  • Conditions: For use in dry locations only between 5°C and 40°C

GRAD8001522

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