Alesis ADAT

Alesis' groundbreaking ADAT Digital Audio Recorder changed the way music is recorded, allowing musicians to create professional-quality albums in home and project studios. The ADAT-XT keeps the ease of use and great sound that made the ADAT the most popular digital multitrack of our time, and adds new tricks of its own. The audio quality actually improves on the ADAT's high standard, recording 8 tracks of audio with 18 bit 128 times oversampling A/D converters and 20 bit 8 times oversampling D/As. The ADAT format records on readily available S-VHS® videocassettes, and up to 16 ADAT recorders can be linked together for 128 tracks with no external synchronizer required and without sacrificing a track to timecode. The ADAT-XT offers an improved transport which operates up to 4 times faster than the original ADAT, with new Dynamic Braking control for more accurate locates and faster lock times. An onboard digital editor allows you to make flawless copy-paste digital edits between tracks on a single unit, or between multiple machines. The XT features Tape Offset, Track Copy, Track Delay, and ten autolocate buttons for sophisticated flexibility and control over your productions. Both +4 dBu balanced and -10 dBV unbalanced connections and the ADAT Optical Digital Interfaceô are provided for flexible hookup in your studio, and a comprehensive Vacuum Fluorescent Display provides all the critical information. A rugged six pound die-cast aluminum chassis offers strength and stability while lessening torque stress on the transport mechanism. With its fast, software-controlled transport, onboard digital editor, 10-point autolocator and 100% compatibility with over 70,000 ADATs worldwide, the ADAT-XT builds upon the ADAT format as the most world's popular professional multitrack recorder.

ADAT-XT Specifications
Audio Conversion:
Record (A/D) 18 bit linear audio, 128 times oversampling, single converter per channel
Play (D/A):
20 bit linear, 8 times oversampling, single converter per channel
Sample Rate:
44.1/48kHz (selectable); user variable via Pitch control
Frequency Response:
20Hz to 20kHz +/- 0.5dB
Dynamic Range:
Greater than 92dB, 20-20kHz
Distortion:
.009 % THD + Noise @ 1kHz
Crosstalk between channels:
Better than -90dB@1kHz
Wow and flutter:
Unmeasurable
Input Impedance:
Balanced: 10k ohms Unbalanced: 10k ohms
Output Impedance:
Balanced: 600 ohms Unbalanced: 10k ohms
Nominal Input Levels:
Balanced: +4dBu Unbalanced: -10dBV
Maximum Input Level:
Balanced: +19dBu Unbalanced: +5dBV
Pitch Control:
+100 cents/-300 cents (48k), ±200 cents (44.1k)
Digital I/O:
ADAT MultiChannel Optical Digital Interface; fiberoptic cable
Sync In/Out:
ADAT Synchronization Interface; 9 pin D-Sub connector
Footswitch Jacks:
Locate/Play/LRC Remote, Punch In/Out
Power Requirements:
90-250 VAC, 50-60Hz, 50W maximum
Dimensions:
(HxWxD): 5.25"x19"x11" (133.3mm x 482mm x 279.5mm), 3U IEC Rack mounting
Weight: 20 lbs.