"Easily one of the best designed dongle-dacs out there. "

Why Choose S9 Pro Plus Martha?

"One thing I find especially nice about the S9 Pro Plus is the overall musicality, smoothness, and lushness of the replay while still holding onto the technical side of my music as well. " ---Chris Love

"The S9 Pro Plus is a little more organic and natural sounding with a greater amount of timbre realism. It sounds more mature and refined with less digital glare, more engaging mid-range, a smoother top end and weightier bass." ---ichos-reviews

"It is small, lightweight, universal for most of the devices, has unexpectedly huge power output and sounds close to AP80 Pro DAP. " ---ZMarketChangers

"What we have is a slightly warm/neutral tonal color across the whole of the mix with the scales tipping slightly more to the warm side. " ---Chris Love

"The S9 Pro Plus furnishes a warm-neutral and smooth tuning, yet preserving above average technical performance - think of it as an improved and more refined Truthear Shio, for a similar price tag. Something to consider for budget audiophiles searching for an all-rounder velvety dongle." ---baskingshark

"Martha is among the most powerful I have tested in its price range and can play the most extreme formats such as DSD512 and PCM 768kHz/32Bit. It is also very versatile and compatible with multiple systems, robust and light enough for everyday use. All this makes it very easy to recommend." ---cqtek