Sound Pure's Take
This is unquestionably the most versatile and powerful digital audio converter available on the market today. Its conversion capability is truly incredible, but its analog emulation is unequalled. When using it in our studio, there was NEVER an instance where the HEDD's analog emulation wasn't useful. That included everything from tracking vocals to mastering symphony orchestra recording. This is a must have for truly any studio that interfaces the analog and digital worlds. The HEDD's analog emulation (tape and tube) is useful in just about every possible situation. It is subtle, yet effective, and we still haven't found a situation where ours doesn't work!
From Crane Song
HEDD, short for Harmonically Enhanced Digital Device, is a technological breakthrough in signal processing. It is engineered to provide musically pleasing sound with the capability of generating tube/analog sounds in the digital domain. HEDD gives any user who works with digital the ability to sound less digital and more analog.
Features include:
- High-quality 24-bit A/D and D/A Convertors
- 24-bit Processing
- Adjustable Triode, Pentode and Tape sounds
- Digital I/O, AES and S/PDIF
- External WC Sync Input and Output
- 22 Element VU Metering
- Analog Tape Compression
The front panel controls allow the user to select input source, sample rate, and continuously variable triode and pentode sounds. The HEDD can operate as an effects device or as a separate A/D and D/A convertor with the harmonic generation process applied to either the A/D or the D/A convertor.
The signal processor performs 24 Bit processing on a digital or analog source.
HEDD has transformerless balanced analog inputs and outputs, transformer isolated digital inputs and outputs, and uses separate power transformers and supplies for the analog and digital sections. The HEDD-192 will operate at sample rates from 44.1K to 192K.
Applications include: CD preparation, work station input and output, DAT machine A/D and D/A convertor replacement and effects generation (warming or changing sounds in the digital domain). HEDD can be used in tracking, mixing, and mastering.
Analog Output: Transformer-less balanced floating stereo output with XLR connectors. Digital zero is +16dBm. This allows 12 db of headroom above a +4dBm 0 VU. Gain adjust trims are on the back panel
Analog Input: Transformer-less balanced floating stereo with XLR connectors. Digital zero is +16dBm. This allows 12 db of headroom above a +4dBm 0 VU. Gain adjust trims are on the back panel
Word Clock Input: BNC connector takes a TTL level signal at the sample rate to sync the A\D to the external sample rate. HEDD will sync from 20 kHz to 192K kHz. The input impedance is 75 ohms.
Word Clock Output: BNC connector this is a TTL level square wave that can be used to provide sync to other equipment. The WC output will be the selected sample rate or the rate of the WC input.
Internal Sample Rate: 44.1kHz TO 96kHz determined by front panel switch.
S/PDIF Input: Unbalanced digital input 75 ohms RCA connector
S/PDIF Output: Unbalanced digital output 75 ohms RCA connector
AES Input: Balanced digital input 110 ohms XLR connector
AES Output: Balanced digital output 110 ohms XLR connector
Power: 25 watts at 115 or 230 volts, 50 or 60 Hz. Fuse size is MDL .3A for 115 volts; MDL .25A for 230 volts
Pilot Lamp: # 7335
Shipping Weight: 15 lbs (6.7kg)
Depth Behind Panel: 10 inches (25.4cm) plus user input/output connectors
The Convertors: HEDD uses high Quality 24 Bit A/D and D/A Convertors made by crystal semiconductor with an upgrade path to 192K sample rate converters
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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Sound Pure Studios · Durham, NC
Come hear it in our control rooms.
Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.