HOW TO REPLACE THE CHORD QUTEST POWER SUPPLY WITH THE S BOOSTER MARK II

More than likely the external power supply you purchase will come with a cable and a set of nibs. It's just a matter of selecting the right nib for the Qutest.  There will be no need to cut any wires. You will simply be replacing the stock power supply with the third party power supply you purchase.  

@kjl1065 FYI…Rob Watts does not recommend using linear power supplies with his DACs. I had a Qutest and it’s an awesome DAC. You’re probably better off upgrading interconnects.

If you do get the s booster, if you order one that’s compatible with the Qutest it’s pretty much plug and play, a direct replacement for the SMPS.

@kjl1065 I got the Sbooster MKII for my Qutest, the difference for me is I now use the incisive filters almost all the time. Prior to the Sbooster I had to use the warm filters as I found incisive gave me listening fatigue. I also purchased the Ultra MKII upgrade which is an additional inline filter. I honestly can't hear the difference with this in our out of the chain. 

With all due respect to @audphile1, I think what Rob Watts point was that he didn't think a linear PS would improve the sound quality...therefore he doesn't recommend it. Most people who upgraded to one feel it was a positive move.

As mentioned implementing a Sbooster couldn't be easier. Buy the 5-6 volt version. Slide the voltage selection switch on the Sbooster to 6 volts. Attach the included micro-usb attachment to the end of the cable, plug into Qutest and enjoy.  

Sorry to contradict, but I believe the Chord Qutest requires a 5 volt power supply.

As far as amperage - 2 amps or greater.

And I do own a Chord Qutest. 

Have used IFI Ipower Elite 5v power supply with Qutest.

Use Sbooster 19v power supply with Roon Nucleus.