Can increased voltage improve measurements? (SPL - sound performance lab, and T+A)

[dep14]

So I'm interested to hear what those more technically adept than myself feel about this.

SPL (sound performance lab) and T+A both out of Germany are using proprietary technology to allow for higher voltages inside their pre-amps, amps, combo pre-amp DAC's, DAC's etc.

The Director MKII from SPL looks like a particularly nice piece that uses their Voltair tech.

I found this little youtube presentation of their tech. I was interested to hear what others here thought?

https://spl.audio/en/spl-produkt/director-mk2/

 

[solderdude]

When you look at a cheap amp like the L30 it seems to me that such high voltage rails aren't really needed to get 114dB of dynamic range.
Seems that it is more a marketing gimmick than anything else.

Of course, when the noise floor is a certain value and you can't get it lower than only increasing the voltage span (and thus higher voltage rails and gain is needed) you can increase the S/N ratio. That high gain needs to be undone later though to get sensible gain and output voltage levels.

 

[restorer-john]

The SPL gear is almost there aesthetically for me. If they'd just clean up the front panel lettering, placement and fonts so they don't look like old-skool clip art.

Otherwise I'd be happy to have a stack of that gear in silver, including a few of the mono powere amps.

 

[dep14]

The SPL gear is almost there aesthetically for me. If they'd just clean up the front panel lettering, placement and fonts so they don't look like old-skool clip art.

Otherwise I'd be happy to have a stack of that gear in silver, including a few of the mono powere amps.

The gear has an overall nice look. I dig the Director MKII look, and reviews are very good. Being pro-audio gives me confidence the measurements are likely strong.

But wondering about this voltage thing...