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MOON EVOLUTION SERIES
750D DAC / CD Transport
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Updated: March 14, 2012
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Revolutionary Technology ...
The world's first true 32-bit asynchronous DAC
The MOON 750D Digital-to-Analog Converter / CD Transport features the most advanced digital technology; The first true
32-bit fully asynchronous digital audio playback system to reach the marketplace. Intended to fulfill
the demands of the most discerning music connoisseur, the 750D is a fully balanced design featuring our new
M-AJiC32 circuitry (an asynchronous jitter elimination system) built around the ESS Technology SABRE-32
Reference Audio DAC. The conversion process uses 8 DAC’s per channel working in 32-bit Hyperstream™. The final result is previously unattainable musical reproduction from
digital media, be it a CD, computer, music server, etc. In addition, the MOON 750D is extremely flexible and exemplifies a luxurious lifestyle.
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The back panel features a complete array of digital input (4) and output (2) connections to meet all the needs of today’s ever-widening technologies. The front panel
includes a disc drawer for our own proprietary drive mechanism which represents a fifth input. As well, in the coming months, an optional outboard power supply will be
made available to further enhance the already astonishing performance of the MOON 750D.
The most realistic and lifelike sound reproduction yet.
Of course, all of the signature features you’d expect in a MOON Evolution series digital product are present: our revolutionary M-Quattro floating suspension,
SimLink, i²DCf, just to name a few, as well as both RS-232 and IR ports for custom-install environments. Finally, a plethora of user selectable cosmetic
options are available at the time of purchase.
Effective November 2011,
the asynchronous USB input will be capable of 24-bit/192kHz performance.
An upgrade is available for units built before this date.
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Significant Design Features:
· The world's first true 32-bit asynchronous Digital-to-Analog converter
· ESS Technology SABRE32 Reference DAC / Digital Filter (ES9018S) working in 32-bit Hyperstream™
to achieve unprecedented jitter immunity and low-level linearity via a patented Time Domain Jitter
Eliminator
· Digital Audio Signal Processing with M-AJiC32 (MOON Asynchronous Jitter Control in 32-bit mode)
· Four (4) digital inputs (AES/EBU, S/PDIF, TosLink and USB) allowing for a connection to virtually
any digital source
· Proprietary CD drive system mounted on our M-Quattro gel-based 4-point floating suspension for
vibration damping, allowing ambient & spatial cues in your recordings to come to life like never
before - The fifth digital input
· RS-232 port for (i) full unsolicited bidirectional feedback and (ii) firmware updates
· IR input for external control
· Two (2) digital outputs – AES/EBU and S/PDIF
· Fully balanced differential digital and analog circuitry in a dual-mono design
· Separate digital & analog power supplies using 2 independent toroidal transformers
· SimLink controller port for 2-way communications with other compatible MOON components
· Power supply voltage regulation includes i²DCf (Independent Inductive DC Filtering); There is
one inductor dedicated to each integrated circuit type component (DAC, Op-Amp, etc.) in the
audio circuit’s signal path - 24 stages in all
· A virtually jitter-free - 1 picosecond - digital clocking system
· A very short capacitor-free signal path using a DC servo circuit and proprietary
12dB/octave analog filter
· 4-Layer PCB’s with pure copper tracings for a much shorter signal path; This results in
greater sonic accuracy and a dramatically improved signal-to-noise ratio
· Ultra rigid chassis construction to minimize the effects of external vibrations
· Accurate matching of the very finest quality electronic components in a symmetrical circuit design
· Designed to be powered up at all times for optimal performance
· Includes FRM-3 remote control.
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To view a larger image of the 750D's internal circuitry, simply point-and-click your mouse over the image located to the left.
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To view a larger image of the 750D's rear panel, simply point-and-click your mouse over the image located to the right.
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An important note about the USB input - applicable to units built before November 2011
The USB input on the MOON 750D accepts a digital audio signal of up to 16-bits/48kHz. This is the native specification
of the USB input. However, if you require a higher sampling rate, there are ways to achieve this with the 750D.
Rather than including a USB input for sampling rates exceeeding 48kHz, we opted to provide the best possible power supply, D/A converter and analog stage in the
MOON 750D at this price level. Also, keep in mind that USB wasn’t originally intended for use with hi-resolution audio;
there are latency issues which compromise sound quality (i.e. jitter and phase errors, etc.). These could be minimized through dedicated costly circuitry, but this
would significantly drive up the cost of the 750D without improving the sonic performance on any of the other inputs.
If you intend to use the MOON 750D’s USB input, it’s very likely that your computer is a data source for music.
Today most computers with a built-in sound card will have either an S/PDIF (RCA connector) or Toslink (optical connector) digital audio output, thus eliminating
the need for a USB input on the 750D. Furthermore, if you’re committed to getting the most out of the music stored
on your computer, then in all likelihood you have installed an after-market soundcard in your computer. Virtually all of these soundcards have at least one S/PDIF,
Optical or AES/EBU (XLR connector) digital output. At this point, USB connectivity becomes irrelevant. The USB input is there for convenience as opposed to performance.
In the event that you wish to use your computer’s USB connection with files greater than 48kHz, there are several relatively inexpensive after-market products;
compact one-box USB-to-S/PDIF interfaces that will work with USB datastreams up to 24-bit, all the way up to 192kHz.
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 "750D Silver")
 "750D Black")
 "MOON 750D Inside View - Click to enlarge")
 "MOON 750D Rear View - Click to enlarge")
