Moon 650D CD Transport & 32-Bit Asynchronous DAC

SKU 650D

Moon 650D CD Transport & 32-Bit Asynchronous DAC



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The MOON 650D Digital-to-Analog Converter / CD Transport follows in the footsteps of the highly acclaimed MOON 750D. Applying what is commonly referred to as trickle-down technology, we have created a product that yields almost all of the 750D’s performance, but at a more accessible price-point. True 32-bit fully asynchronous digital audio playback is achieved by the 650D using a fully balanced differential dual-mono design featuring our own M-AJiC32 circuitry (an asynchronous jitter elimination system). Built around the ESS SABRE32 Ultra DAC operating in 32-bit Hyperstream™, the conversion process uses an astonishing 8 DAC’s per channel. The final result is a product that will breakdown all the barriers, bringing you closer to the music than ever before, regardless of how your digital media is stored, be it on a CD, computer, music server, etc.

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, allowing for a connection to virtually any digital source. The front panel includes a disc drawer for our own proprietary drive mechanism which represents a fifth input. As well, an optional outboard power supply will be made available to further enhance the already astonishing performance of the MOON 650D.

Of course, all of the signature features you would 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.

Since November 2011 the asynchronous USB input is capable of 24-bit/192kHz performance. An upgrade is available for units manufactured prior to this date.

650D Technical Features

· True 32-bit asynchronous Digital-to-Analog converter
· ESS Technology SABRE32 Ultra DAC / Digital Filter (ES9016) 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)
· A virtually jitter-free digital clocking system
· 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
· Fully balanced differential digital and analog circuitry in a dual-mono design
· Separate digital & analog power supplies using independent toroidal transformers
· 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; 18 stages in all
· A very short capacitor-free signal path using a DC servo circuit and proprietary 18dB/octave analog filter
· RS-232 port for (i) full unsolicited bidirectional feedback and (ii) firmware updates
· IR input for external control
· SimLink™ controller port for 2-way communications with other compatible MOON components
· 4-Layer printed circuit boards 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
· Includes FRM-3 remote control.

650D Detailed Specifications

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 · Stop
Front Panel Display Track number ·
Time – elapsed or remaining   (track / disc)
Front Panel LED Indicators Program · Repeat – current track ·
Repeat – entire disc · Random
DAC / Digital Filter ESS ES9016 Sabre32 32-bit Hyperstream™
Frequency Response   (audible) 20Hz – 20kHz   +0/-0.1dB   (CD transport)
Frequency Response   (full range) 2Hz – 100kHz   +0/-3dB   (external source)
THD @ 1kHz, 0dBFS   (A-weighted) < 0.001 %
IMD < 0.001 %
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 16 – 24 bits
Sampling Frequency Rate range 44.1 – 192kHz   (up to 96kHz for TosLink)
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 100Ω
Digital Output Impedance   S/PDIF 75Ω @ 0.5p-p
Digital Output Impedance   AES/EBU 110Ω @ 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-3 All-Aluminum Full Function
Display Type 8 character dot matrix LED
Power Consumption @ idle 25 watts
AC Power Requirements 120V / 60Hz   220-240V / 50Hz
Fuse Replacement   120V   /   220-240V 200mA short slow blow   /   100mA short slow blow
Shipping weight 35 lbs / 16 Kgs
Dimensions   (w x h x d) 18.75 x 4.1 x 16.81 in.   (47.6 x 10.4 x 42.7 cm.)


16.0000 kg

Two Tone




Coaxial Digital , Optical

Audio DAC

ESS ES9016 Sabre32 32-bit Hyperstream™

Depth (mm)



AES Digital, Coaxial, Optical, USB

Height (mm)



Moon 650D


CD Player

Width (mm)


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Moon specialises in custom home audio solutions, from custom handmade cables to headphone modification services.