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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, theMOON 750D is extremely flexible and exemplifies a luxurious lifestyle.
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. |
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.
Configuration | Fully balanced, Dual-mono |
Transport Mechanism | Proprietary Design |
Front Panel Controls | Standby · Program · Display · Repeat · Input · Random · Time · Open / Close · Play · Pause · Scan/Skip Forward · Scan/Skip Backward · Pause · Stop |
Front Panel Display | Track number · Time – elapsed or remaining (track / entire disc) |
Front Panel LED Indicators | Program · Repeat – current track · Repeat – disc · Random |
DAC / Digital Filter | ESS ES9018S Sabre32 32-bit Hyperstream™ |
Frequency Response (audible) | 20Hz – 20kHz +0/-0.1dB (with internal CD transport) |
Frequency Response (full range) | 2Hz – 100kHz +0/-3dB (with external digital source) |
THD @ 1kHz, 0dBFS (A-weighted) | < 0.0003 % |
IMD | < 0.0002 % |
Dynamic Range | > 120dB |
Signal-to-noise ratio | > 120dB @ full output |
Slew Rate | 50V/µs |
Channel Separation | > 116dB |
Low Level Linearity | < ±0.25dB at -90dBFS |
Intrinsic Jitter | < 1 picosecond RMS |
Analog Outputs – Balanced | 1 pair XLR |
Analog Output – Single-ended | 1 pair RCA |
Digital Inputs (4) | AES/EBU (XLR), S/PDIF (RCA), TosLink, USB Type-B |
Bit-depth range – All inputs | 16 – 24 bits |
Sampling Frequency Rate range – All inputs | 44.1 – 192kHz |
Digital Outputs (2) | S/PDIF (RCA) and AES/EBU (XLR) |
Max. Analog Output @ 0dBFS – XLR | 2.0 Volts |
Max. Analog Output @ 0dBFS – RCA | 2.0 Volts |
Analog Output Impedance | 100 Ω |
Digital Output Impedance S/PDIF | 75 Ω @ 0.5p-p |
Digital Output Impedance AES/EBU | 110 Ω @ 3.7Vp-p |
SimLink Port | 1 input + 1 output each on 1/8" mini-jack |
RS-232 Port | 9-pin female DB connector |
IR input | 1/8" mini-jack |
Remote Control | FRM-2 All-Aluminum Full Function |
Display Type | 8 character dot matrix LED |
Power Consumption @ idle | 25 watts |
AC Power Requirements | 120V / 60Hz 240V / 50Hz |
Fuse Replacement – 120V | 0.2A short slow blow |
Fuse Replacement – 230V | 0.1A short slow blow |
Shipping weight | 35 lbs / 16 Kgs |
Dimensions (w x h x d) | 18.75 x 4.0 x 16.81 in. |
Features & specifications are subject to change without notice.
D.G.
Peso | 16 kg |
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