With those 2nd harmonic dominance, wide bandwidth and output filter profile, this could well be the el-cheapo tube-sound-lovers panacea for the digital era.
Giù il cappello!
I meant: do we still need more detail than this? Could this (and the other devices in this class) be the end of DAC development toward signal perfection?
I remember many power amplifiers with a x10 or so switch to change the range for better readability. Impedance apart, which is a known limit of power meters in amplifiers, this would be a more useful way to implement a sensitivity control. But a knob with no scale...
$130 just to know whether...
These VUs look almost identical in style (PEAK led apart) to the ones of my first mixer Inkel MX-995...a tremendous revival...
Anyway I can't get the actual use of such a measurement instrument (if I can call it this way). Expecially with that -20/+5 scale and a sensitivity knob.
Which...
My electronics professor used to say: "almost every newly graduated can design a proper low* frequency digital circuit, there's loads of literature, patterns and working examples to inspire and steal from, but analog is another story. Today a good analog designer worths like gold".
ATOLL...
Didn't mean to make you work. Your job's over, on a blackbox testing perspective.
I just proposed that for the love of science. In front of such a broken product, the curiosity rises.
Do you think it would be feasible to measure the signal before the analog output stage? Just to understand where the design failure is, at least in terms of THD and IMD (less for HUM).
I suspect the most part of the problems lays in the discrete gain stage, rather than in the actual DAC...
With these frequency response and directivity patterns, it looks even a good option for in-wall mounting in those cases where a not fixed listening point is foreseen.