HEDD, short for Harmonically Enhanced Digital Device, is a technological break through 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
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 separate A/D and D/A convertor with the harmonic generation process applied to either the A/D or 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.
Features And Specs
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
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 AD 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.
44.1kHz TO 96kHz determined by front panel switch.
Unbalanced digital input 75 ohms RCA connector
Unbalanced digital output 75 ohms RCA connector
Balanced digital input 110 ohms XLR connector
Balanced digital output 110 ohms XLR connector
25 watts at 115 or 230 volts, 50 or 60 Hz.
15 lbs (6.7kg)
Depth Behind Panel:
10 inches (25.4cm) plus user input/output connectors
HEDD uses high Quality 24 Bit A/D and D/A Convertors made by CRYSTAL semiconductor, with an upgrade path to 192K sample rate convertors