External Power Supply For My Audiolab 6000CDT CD Transport

@kijanki good points. I have Chord Hugo TT2 that uses SMPS and sounds fine. It’s all in the quality of the SMPS and implementation. However, I do prefer a good quality and properly implemented linear power supply as in my experience the transients and dynamics are typically better with components utilizing linear supply with good filtering. 

In case of Audiolab, I wouldn’t screw around with the power supply there. But I would deaden the case - there are plenty of real estate there to apply some noise and vibration isolating Dynamat. Check out this video:

https://youtu.be/VoxC3st7WQw

@audphile1   I believe there are fantastic power supplies in either technology, but SMPS are way more complex to design (and perhaps harder to repair).  Rowland's SMPS operate at extremely high switching frequency (incredible 1MHz) that is much easier to filter out than 120Hz in linear supplies.  Small ferrite couple of inch transformer operating at high frequency can deliver as much power as 50 lbs iron transformer operating at 60Hz.   

I'd just like to take a moment and remind everybody that the prevalence of SMPS in digital applications is because they make absolutely no performance difference in the digital domain. And the low-voltage/multi Gigahertz requirements there are not insubstantial, far greater than the low bandwidth requirements of audio.

@kijanki  Benchmark reduced noise by 10dB by switching from linear power supply in DAC1 to SMPS in DAC2 and DAC3.  SMPS ... can be wonderful if done right.  My Benchmark AHB2 has SMPS and is very quiet.

PS Audio gear is switching to SMPS as well, according to Mr. Paul McGowan. Both the iFi iPower X and iPower 2 are SMPS with 1 microvolt (µV) ripple noise, while audiophile grade LPS typically has noise levels in a range of 25-100 µV. Technology advances, folks, just like class D.

+1 for upgrading to a better transport instead. To make up your mind just compare the internal components of 6000 CDT to, for example Teac VRDS 701T or Jays Audio transports.