How important is the transport when using a DAC?

Ed - Ive tried several linears and none of them work well for digital. Analog maybe. Even LI batteries with ultracaps in parallel are not as good.

Until you have heard a good switcher/series regulator, you cant possibly understand. Believe me, the difference is incredible. There are none like this available on the market yet BTW.

Steve N.
Empirical Audio

Steve, the best digital I have heard (by a mile) is the MSB series IV. A lot of people that have listened to every 5 figure DAC under the sun concurr. It uses a linear powersupply.

May be a better mousetrap using your switcher/series regulators is just around the corner. Who knows. Technology moves on.

For now, all I can say that if the best sounding DAC money can buy uses a linear powersupply, it is premature to write it off as technology unsuiteable for digital applications.

Did I just read (again) that a power supply is better than a chemical battery to provide DC to a component?

This sounds like the Naim dealer who insisted two car batteries would not run a preamp. The 24 volts would not be "clean enough" and the performance would suffer.

Sorry to sound sarcastic...and I am not claiming to be the end all guru here, but a battery is perfect DC, is it not?
Especially for a preamp or DAC/CD player application which is essentially a stable load.

Yup, I agree the best is MSB and it is linear go figure.

Gummy - this is about di/dt. Batteries have non-zero internal impedance and even with ultracaps they cannot compete with fast low-impedance regulators. The issue is having the same impedance at all frequencies of current.

I have designed and sold both SLA and LI/ultracap supplies in the past.

Steve N.
Emnpirical Audio