Eclipse 384 Stereo AD/DA Converter

This is one beast you aren't going to want to set free once you have it in captivity.

- Audio Media

Eclipse384 Best of Show, Gear of the Year Awards & ParExcellence 2012 nominee

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A technological fusion

Eclipse 384 is an advanced 384 kHz A/D & D/A converter clocked by Antelope's renowned 64-bit technology and a flexible monitoring system that creates a technological synergy by combining the most prominent Antelope's innovations. It provides mastering and mixing engineers an unprecedented level of productivity, sound quality and ease of use.

64-bit DSP Trinity-level clocks

The Eclipse comprises 384 kHz A/D & D/A converters clocked by two independent 64-bit DSP Trinity-level clocks. The fully integrated monitor controller employs 0.05 dB accurate gold-plated relay attenuators and provides speaker switching, bass management and cue mix functions with integrated talkback. The Eclipse also includes two dedicated headphone amplifiers and a custom USB interface, as well as two large peak meters on the front panel. The advanced software control panel compatible with both Mac & PC, allows five nameable presets for easy recall of favorite setups.

Studio and live

Master clocks are becoming more and more popular for use with digital consoles and recording equipment at concerts and live events. By using the Eclipse 384, a live sound engineer is able to provide sync reference for up to four different devices, while using the main D/A for backing material, the A/D with multiple digital outs feeding redundant recording systems, and monitor DAC to check the recording post A/D conversion.

Supreme audio quality and boosted efficiency

The unique dual-domain clocking system enables analog-based, more natural sounding sample rate conversion. The integrated patching/routing capabilities make monitoring of either analog or digital sources extremely simple, avoiding jitter, distortion and cabling noise. By eliminating the many input and output stages and the various power supplies, that would be present in separate devices, the noise floor can be substantially reduced and the audio quality significantly improved.


Introduced first during the AES summit in New York in 2011 it was selected as “Best of Show” by ProSound Network and later awarded “Gear of the Year” by Audio Media.

Eclipse 384 AD/DA Mastering Interface



Clocking 64-bit DSP Trinity-quality clocking
Oven-controlled oscillator
Factory calibrated to better than +/- 0.001 ppm stability
Two independent sample rates
Varispeed capability of +/- 200 cents
10M atomic clock input
Conversion 384 kHz A/D & D/A converters
A/D with Dynamic Range of 124dB
D/A with Dynamic Range of 129dB
Burr-Brown D/A conversion chip
Two bypassable A/D inserts
Custom USB 2.0 chip streaming up to 480 Mbits
Monitoring Three sets of switchable monitor outs
Second dedicated monitor D/A
Bass management with LFE output
Precise input and output peak meters
Talkback and cue mix functions
Relay volume attenuator matched to 0.05 dB



Analog Inputs 3 x Combo Balanced Analog (XLR / ¼ TRS)
2 x ¼ TRS A/D Insert points
1 x ¼ TRS Talkback
1 x ¼ TRS Foot switch
Digital Inputs 3 x AES/EBU on XLR. 32kHz to 192kHz @ 110 Ohms terminated
2 x S/PDIF on RCA. 32kHz to 192kHz @ 75 Ohms terminated
2 x TOSLINK on optical fiber: up to 96kHz


Analog Outputs 2 x Balanced XLR outputs from D/A Converter
3 x Balanced Outputs for monitors (1 x XLR and 2 x TRS)
1 x Balanced XLR LFE Out
2 x ¼ TRS Cue Mix Headphones
2 x ¼ TRS Front Headphones
Digital Outputs 2 x AES/EBU on XLR for the A/D converter out (32kHz to 192kHz; 384kHz for dual wire when 384kHz is selected in the clock) @ 110 Ohms terminated
2 x De-jittered AES/EBU on XLR (32kHz to 192kHz; 384kHz for dual wire when 384kHz is selected in the clock) @ 110 Ohms terminated
1 x De-jittered S/PDIF on RCA (32kHz to 192kHz) @ 75 Ohms terminated
1 x De-jittered TOSLINK on optical fiber: up to 96kHz
USB USB 2.0 Hi-Speed; Data stream up to 480Mbits/384kHz, Type B
Word Clock 1 x 10M Atomic Clock input @ 75 Ohms 3Vpp on BNC 44.1 - 384kHz
1 x Word Clock Input @ 75 Ohms 3Vpp on BNC 44.1 - 384kHz
4 x Word Clock Outputs @ 75 Ohms 3Vpp on BNC 44.1 - 384kHz square wave signal

D/A Converter

Dynamic Range 129dB
THD + N 0.0004 %

A/D Converter

Dynamic Range 123dB
THD + N 0.0004 %

Clock Specs

Clocking System 4th Generation Acoustically Focused Clocking
64-bit DDS
Oven Controlled Crystal Oscillator
Clocking Stability <+/-0.02 ppm, oven controlled at 64.5ºC/ 148.1ºF
Clock Aging < 1 ppm per year
Clock Calibration <+/_0.001 ppm
Atomic Clock Input 10MHz @ 1Vpp, BNC
Sample Rates (kHz) 32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384
Clock Generators 2 Independent Clock Generators
Varispeed +/-200 cents
+ 12.246 %
10.910 %
Operating Temperature 0-50ºC/32- 122ºF
Weight 8 kg/17,64 lb
Dimensions (approx.) Width: 483 mm/19"
Height: 88 mm/3.47"
Depth: 282 mm/11.1" 
Power Supply AC Universal input 95-245VAC 20 Watts Max Consumption

Eclipse384 connectivity chart

Eclipse 384 User Manual
Eclipse 384 control panel for MAC
Eclipse 384 control panel for PC
Eclipse 384 ASIO driver for PC

* Please, update your firmware after installing the software control panel for optimum performance of your Eclipse 384.