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Sound Gallery is a hifi specialist store located in Melbourne servicing Australian and International customers. With 20 years of experience in R&D, studio remastering and psycho-acoustics showcasing premium hi-fi systems. When you are passionate about music, let us help you find the perfect system tailored to your needs and lifestyle. 


Since our founding, Sound Gallery has been known for quality services, exceptional efficiency and the highest level of professionalism. No matter what service you’re looking for, we guarantee to not only meet, but exceed your expectations and ensure your full satisfaction. 

Soulution 746 CD/SACD Player

Soulution 746 SACD-Player

Peerless sound. Perfect linearity. Total fidelity. The soulution 746 delivers the ultimate listening enjoyment, completely free from jitter. Much more than just a CD/SACD player it bridges the gap between the digital and the analogue worlds. No piece of musical information is lost or changed in any way.
It’s the nature of sound. As pure as it gets.




A CD or SACD player brings both digital and analogue domains into an audio system. For the very highest quality sound every part of the player is critical. A high-quality D/A converter alone is no longer enough. The 746 unites a top quality optical drive, a super-precise master clock generator, an intelligent digital signal processor with over­sampling, and analogue output stages of the utmost quality. Together they ensure nothing in the music is lost on its way from disc to output connection.



Look inside many CD/SACD players and you’ll find a lot of empty space and off the shelf electronics. soulution’s approach is somewhat different. As with our other components we’ve engineered our own circuitry and used a consistent dual mono layout throughout. Three separate power supplies - for drive, digital and analogue stages - are moved offboard into an external housing, removing a potential source of interference.



Drive quality is critical in a high-end player. For the 746 we chose the Esoteric synchromesh drive from Teac. It is mounted to massive copper chassis which are in turn affixed with damped mountings for complete mechanical isolation.



Audio data from the disc is buffered. A powerful SHARC DSP performs the 8x over­sampling to 24bit /352.8 kHz (24bit/384kHz depending on the digital input signal) with the utmost precision. We believe precision of inter­polation is more important than high clock rates. Our players use an algorithm from the highly regarded Anagram Technologies followed by Burr Brown D/A converters in a digital symmetric configuration. For SACD only, conversion to PCM is used prior to D/A conversion. The PCM format allows us to use innovative processes like the Zero Phase Technology.


The 746 SACD-Player is equipped with soulution's innovative Zero-Phase-Technology. Smallest timing errors provoked by the analog low pass filter of the D/A converter get eliminated. Every D/A-converter requires an analog low pass filter in its output in order to suppress high frequency noise and aliasing signals. The 3rd order bessel filter , used for the 746 SACD-Player, with a cut-off frequency of 120kHz, does show a phase shift of up to 15° in the audio band. Due to the Zero-Phase-Technology the phase error of the analog music signal remains below 1°, 20Hz - 100kHz! The Zero-Phase-Technology brings you even closer to the beauty of the source material! The 746 SACD-Player is equipped with soulution's innovative Zero-Phase-Technology. Smallest timing errors provoked by the analog low pass filter of the D/A converter get eliminated. The music gets even more realistic and 3-dimensional with a lot of "air" around instruments and voices. As close to the source as possible! No detail gets lost.


D/A converter and output stage

Burr-Brown devices perform D/A conversion only. Their internal upsamling and filter functions are by-passed. They run in dual-mono mode. The four output currents are converted to voltage and then filtered. With an internal bandwidth of 80 MHz, this current/voltage conversion stage allows best signal-to-noise performance and maximum dynamics in the analogue domain.


Output stage

The 746‘s extremely wideband output stage is identical to that of the 720 reference preamplifier, including the power supply. A 40MHz/-3dB bandwidth ensures every musical detail is reproduced true to life producing a three-dimensional, spatial sound. Output signal levels are enough to keep interconnect influences to an absolute minimum.



No less impressive is the master clock generator which provides an ultra-precise clock signal. Residual jitter at below one picosecond is effectively undetectable with current test equipment.


External power supply

The external power supply consists of three separate and electrically isolated sections, all complemented by multi-state filter network which keeps mutual inter­ference across the three to a minimum. Supply voltages for the player’s analogue stages are precisely regulated using proven power amplifier techniques, achieving ripple levels below 0.01µV.

Power supplies for the digital and drive sections of the player are similarly highly specified and optimized for their respective functions, including accommodating any high current demands from the drive and its electronics.



The SACD player is operated from front-panel buttons and a rotary control. Further functions can be used to optimise and match an entire audio system around different components.


Analog outputs

- 1 x symmetrisch (XLR)
- 1 x unsymmetrisch (RCA)


Digital outputs

- 1 x SPDIF 1 (RCA)
- 1 x SPDIF 2 (BNC)
- 1 x AES/EBU (XLR)
- 1 x Optical (Toslink)
- 1 x Clock (BNC) 


Digital inputs

- 1 x SPDIF 1 (RCA)
- 1 x SPDIF 2 (BNC)
- 1 x AES/EBU (XLR)
- 1 x Optical (Toslink)
- 1 x Clock (BNC) 



- 2 x RJ45





FFT analysis for CD playback (44.1kHz, 16bit)

The inherent noise of CD players is typically at about -120dBr, so any distortion components with smaller fractions would get lost in the noise and no longer be visible. Not so with the 746 SACD player where the inherent noise is at ca. -150dBr. Those distortion components that become visible below -120 dBr cannot be attributed to a malfunction of the device. Instead they represent the quantisation noise of the CD (16bit) itself, see opposite measurement.

FFT analysis for CD playback (44.1kHz, 16bit)

FFT analysis in DAC mode (96kHz, 24 bit)

Only with high-resolution data the 746 can demonstrate its full potential. The quantisation noise of the 24bit data is now below the inherent noise. The actual distortions of the D/A converter become visible.

FFT analysis in DAC mode (96kHz, 24 bit)


The linearity measurement provides information whether the D/A converter translates the incoming data correctly. Particularly with small signal levels deviations may occur here. Even for signal levels of -120dBFS (24bit data) the deviation of the 746 remains below 0.2 dB. This is slightly above the measurement limit of modern measuring instruments.




Nominal voltage

Model 220 – 240 V / 50 – 60 Hz 220 – 240 V
Model 100 – 120 V / 50 - 60 Hz 100 – 120 V

Power consumption

OFF (standby) <0.5 W
ON 60 W


Output voltage balanced 4 Vrms
unbalanced 2 Vrms
Peak Output Current 1 A
Output impedance balanced 2 Ω
unbalanced 2 Ω
Frequency response (depending on data format) DC-100 kHz
Distortion (THD) <0.002 %
Signal to noise ratio (SNR) 140 dB


Output voltage SPDIF 500 mV p-p
AES/EBU X; 5 V p-p
Output impedance SPDIF 75 Ω
Frequency 32 -192 kHz
Resolution 16 - 24 Bit


Sensitivity 0.3 - 5 V p-p
Input impedance SPDIF 75 Ω
Frequency 32 -192 kHz
Resolution 16 - 24 Bit
PLL – range +/- 100 ppm


Output voltage 5 V p-p
Output impedance 75 Ω
Clock-frequency (adjustable) 44.1 or 48 kHz


Input voltage 0.3 - 5 V p-p
Input impedance 75 oder 300 Ω
LINK-System +12 V