Radial Engineering HDI High-Definition Studio-Grade Direct Box with Transformer Saturation - Line Output

ITEM #: RAD-HDI MFG #: R800 2025 H

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Free Shipping with $49 Minimum Order

List Price:

$1,140.00

Our Price:

$949.99

Availability: Usually Ships in 5-14 Days.
Please Email, Chat or Call (800) 522-2025 for Detailed Delivery Info
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R800 2025 H - Overview

The Radial HDI is a studio-quality direct box designed to create exceptional recordings with any instrument, utilizing premium Jensen transformers and a unique Color control that provides an entirely new yet familiar-sounding sonic palette to experiment with.

Instant Gratification
Despite the complex circuitry housed within the unit, the HDI has an elegant set of controls that allows the musician or engineer to dial up a record-ready sound with a minimal amount of tweaking required. The Level control drives the inputs of the HDI with instant visual feedback from the responsive front panel meter, while the Color knob provides seamless blending between an ultra-clean tone and amp-style distortion and saturation, so you can add just the right amount of character and grit to your instrument. A smooth Opto compressor can be engaged to control the peaks of the input signal, and a High-Pass Filter clears up any excessive low frequencies added by the Color control. Lastly, a Presence control accentuates the highs and high-mids, providing the ability to cut through the mix with results that are sure to impress.

Looks and Personality
With its gunmetal anodized 1/4" thick milled front panel and distinctive styling reminiscent of classic outboard studio equipment, the HDI is sure to turn heads in any recording space. A custom output meter provides a level check at a glance, with oversized chrome knobs for precise adjustments and easy tweaking on-the-fly. The HDI is a stunning standalone unit, but it also comes complete with mounting hardware to install in standard 19" equipment racks. One or two HDI's can be installed side-by-side in a 2RU rack space, and like all Radial products, they are built with rugged components and designed to easily withstand the rigors of concert touring.

Applications
Alongside an Amplifier
Acoustic Guitar
HDI Processed Output

  • Features:

    • Dial in an amazing tone within seconds
    • Blend from ultra-clean to amp-like distortion
    • Smooth Opto compressor for peak reduction
    • Mic and line-level outputs
    • Oversized custom-wound Jensen transformer
     
  • Specifications:

    • Frequency Response:
      Line Output: 1 Hz to 100 kHz (+0.25/-3 dB), 20 Hz to ~ 20 kHz (±0.1 dB)
      Mic Output: 10 Hz to 80 kHz (+0.25/-3 dB)
    • Dynamic Range: 112 dB (20 Hz to 20 kHz, Unweighted, Referred to +25 dBu)
    • Gain Range: Min Gain (Level CCW): -3 dB, Max Gain (Level CW): +31 dB
    • THD: 0.3% at 20 Hz, 0.22% at 100 Hz, 0.01% at 1 kHz (+4 dBu In)
    • Signal to Noise: 91 dB (20 Hz to 20 kHz, Unweighted, Referred to +4 dBu)
    • Max Input:
      1/4" TS: +5 dBu, 3 VAC RMS, 8.4 Vpp
      1/8" / 3.5mm: +25 dBu, 7 VAC RMS, 20 Vpp (Level at 12:00)
    • Max Output
      Line-Level XLR: +25 dBu (1% THD at 1 kHz)
      Mic-Level XLR: +3.7 dBu (1% THD at 1 kHz)
      1/4" Processed Out: +8 dBu (Approximately, Unity Gain with Level at 12:00)
    • Input Connectors: 1/4" TS (Front and Rear), 1/8" / 3.5 mm Synth
    • Output Connectors: XLR Line/Mic, 1/4" TS Processed, 1/4" TS Thru
    • Compressor: Optical, 6:1 Ratio, 8 dB Gain Reduction Max
    • HPF: 40 Hz / 100 Hz Rolloff at -6 dB/Octave
    • Construction: 14 Gauge Steel Chassis, 0.5" / 12.7 mm Aluminum Front Panel
    • Power: 100 to 200 VAC, 50/60 Hz, 0.45 A
    • Operating Temperature: 41 to 104°F / 5 to 40°C
    • Dimensions (LxWxD): 8.3 x 8.3 x 3.5 Inches
    • Weight: 5.1 Lbs
     
  • GTIN:

    0676101044979
     

R800 2025 H - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov