From Radial Engineering
The HDI is Radial Engineering’s flagship direct box, designed to create exceptional sonic results with any instrument in both studio recording and professional touring applications. The HDI combines the best aspects of both active and passive direct boxes, utilizing premium Jensen transformers and a unique Color control circuit that can blend between an ultra-clean tone on one hand, and the warmth and grit of transformer saturation and harmonic distortion on the other. A simple but elegant feature set allows the engineer or musician to achieve their desired tone in seconds, with variable Level, Color, and Presence controls on oversized chrome-plated knobs. A smooth Opto compressor can be engaged for subtle peak reduction, and a HPF is included to remove excessive low end when pushing the unit hard into distortion. Both mic and line-level balanced outputs are provided, allowing you to connect directly to a recording interface without the need for an additional preamplifier. Finally, a responsive output meter for visual feedback.
Features
- Large chrome controls knobs makes it easy to dial in an amazing tone within seconds
- Blend from ultra-clean to gritty amp-like distortion
- Smooth Opto compressor for peak reduction
- Mic and line-level outputs allow for connection to any pro audio device
- Oversized custom-wound Jensen transformer provides rich, warm tone
Extras
- Responsive output meter for visual feedback
- Versatile inputs provide various impedance and sensitivity choices for use with any instrument
- Includes 2RU mounting rack ears, use as a standalone unit or rack up to two side-by-side
- Backed by Radial’s industry-leading 3 year transferrable warranty
| Frequency response: | Line Output: 1Hz ~ 100kHz +0.25/-3dB, 20Hz ~ 20kHz +/-0.1dB Mic Output: 10Hz ~ 80kHz +0.25dB/-3dB | |
| Dynamic range: | 112dB (20-20k, unweighted, referred to +25dBu) | |
| Gain: | Min Gain (Level CCW): -3dB Max Gain (Level CW): +31dB | |
| Total harmonic distortion: | 0.3% @20Hz, 0.22% @100Hz, 0.01% @1kHz (+4dBu In) | |
| Signal to Noise: | 91dB (20-20k, unweighted, referred to +4dBu) | |
| Maximum Input: | 1/4" TS: +5dBu, 3 VAC RMS, 8.4 V Peak to Peak 3.5mm: +25dBu, 7 VAC RMS, 20V Peak to Peak (Level @ 12:00) | |
| Maximum Output: | Line Level XLR: +25dBu (1% THD at 1kHz) Mic Level XLR: +3.7dBu (1% THD at 1kHz) 1/4" Processed Out: +8dBu (Approx. unity gain with Level @ 12:00) | |
| Features | ||
| Ground lift, HPF | ||
| Input Connectors: | 1/4” TS (front and rear), 3.5mm Synth | |
| Output Connectors: | XLR Line / Mic, 1/4” TS Processed, 1/4” TS Thru | |
| Extras: | Output pad, Opto Compresser: 6:1 ratio, max 8dB gain reduction HPF: 40Hz / 100Hz rolloff @ -6dB/octave | |
| General | ||
| Construction: | 14 gauge steel chassis, 1/2” aluminum front panel | |
| Size (L x W x D): | 8.25” x 8.25” x 3.5” | |
| Weight: | 5.05lbs | |
| Power: | 100-200VAC 0.45A ~ 50/60Hz | |
| Conditions: | For use in dry locations only between 5°C and 40°C | |
Free 3-Year Warranty
Sound Pure stands behind our products. Free three-year warranty on this item. Coverage exclusions live in Terms & Conditions, Section 27.
Level of support and expertise that simply isn't available at big-box megastores. Read the warranty →
Returns
This item is not eligible for the Try-Before-You-Buy 48-hour audition. Standard return policy applies — see Terms & Conditions, Section 18 for details.
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