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SMSL PO100 Pro presents itself as an extremely powerful and incredibly compact USB interface. Despite its small size, the PO100 PRO is based on an architecture using high quality components to ensure a faithful and precise sound reproduction. It also offers a complete connectivity to answer most of the connection needs, with USB-C as input and coaxial, optical and I2S via HDMI as output. Package list: 1* SMSL PO100PRO; 1*Packing box; 1*User Manual;1*Type-C to C cable; 1*Type-C to A cable.
PO100Pro with Other Devices
USB input support game console connection.
The PO100 Pro support connection of multiplegame consoles: PS4 / PS5 , SWITCH, etc.
Compatibility Windows 7/ 8/ 8.1/ 10/ 11, etc.
XMOS XU316 USB Interface
The USB-C input of the PO100 Pro is associated with a third generation XMOS XU316 high-end USB interface. This one, in addition to allowing a transparent sound reproduction, ensures the support of high resolution audio streams up to PCM 32bit 768kHz and DSD512.
Input & Outputs
Input using TYPE-C USB interface, with IIS,Optical and Coaxial digital output, support PCM 32bit 768kHz.
Mobile phones and other devices can be connected and powered to the PO100 Pro.
(Support type-c to type-c cable.)
M. L. Ramsey
2025-07-28 17:00:11
Inexpensive, easy to install upgrade that absolutely improves music experienceWiim Ultra USB out to SMSL PO100 PRO then optical into Geshelli J2SDelivered in 10 days
Paige Harrison
2025-07-10 18:30:35
Absolutely FANTASTIC! Huge difference in the sound quality.
M. Meltzer
2025-06-25 17:50:27
I received my SMSL PO100 Pro Digital to Digital converter quickly after ordering, given that the unit was shipped from overseas. AOSHIDA, the Amazon seller, was very proactive and kept me informed on the status of my order via email messages including notifying me of the arrival of my order in the US and when my order had cleared US Customs. Total number of days from order to receipt of the SMSL PO100 Pro was just 9 days.I purchased the SMSL PO100 Pro from Amazon based on an online review and recommendation that the SMSL PO100 Pro can be used to re-clock the digital signal from the WiiM Ultra preamplifier to reduce jitter in the digital stream from the WiiM Ultra. Based on my listening experience with headphones the SMSL PO100 Pro when used as a digital signal re-clocker improved the sound I heard. The output of the WiiM Ultra is very pleasing. However, to test the effect of re-clocking the digital signal I inserted the SMSL PO100 Pro in between the WiiM Ultra (using the WiiM Ultra's USB port as an output and sent the streaming signal to the SMSL PO100 Pro's USB-C input.) The re-clocked signal was then routed via a digital optical cable to my Denon PMA-600NE (purchased from Amazon) stereo amplifier that has two optical inputs and an internal DAC (I can't recall which DAC but it sounds very good to me). The best way to describe the improvement in audio is that the transient sounds including drum sticks hitting wood blocks, generally any percussive sound was cleaner, clearer. In comparison, without the digital signal re-clocking performed by the SMSL PO100 Pro these transients as streamed from the WiiM Ultra sounded smeared (that is the best way I can describe what I was hearing.)The SMSL PO100 Pro comes with everything you need to connect the unit in between a computer or in my case the WiiM Ultra's USB output and a digital amplifier. The required 5V power is provided to the SMSL PO100 Pro via the USB-C connection.) SMSL provides a USB-A to USB-C interconnect cable (approximately 24 inches in length) and a shorter USB-C to USB-C interconnect cable. The digital amplifier must have an optical connection and its own internal Digital to Analog Converter (DAC). Alternately, you can connect the digital optical output of the SMSL PO100 PRO to a Digital Analog Converter that has an optical input (Note that the WiiM Pro Plus streaming unit (I purchased from Amazon) has both an optical input and and optical output so you could use a WiiM Pro Plus as the DAC and then use the RCA output connections on the WiiM Pro Plus to connect to a two channel stereo amplifier that may not have an optical input or an internal DAC.
Carlos E Long
2025-05-19 18:26:11
This SMSL digital to DIGITAL converter is a solid 10 in cost effective upgrade to a sonic system.I gave it a 4 because the instructions don't translate to English such that I understand what's going on. For example, I still don't know what those 2 rocker switches on the back actually do?However, don't get it twisted...once I got it decently integrated, it's off the chain good in imaging, soundstage, clarity, transients and with a dark background.Was a hassle to order with long lead time, but it was worth waiting for.
Alexander
2025-05-13 18:44:17
Kept having issues with the PO100 Pro and my Mac Mini M4 as well as Studio. Tried three different optical cables thinking that was the issue and sure enough I tried my Apple branded Thunderbolt 3 cable and Hi Res plays crystal clear. Previously there was static noise across most frequencies but a high quality thunderbolt cable fixed it.
Cosmo Cat
2025-05-10 15:05:45
The title of the product is not correct. There is no digital to analog conversion. You need the "AK" version if you need it. The "Pro" version is just a digital to digital conversion. So why do you need a DDC? For several reasons:1) You want to output digital from a USB port but your DAC doesn't have usb input, but has one of the following - coax, optical, or i2s.2) Your USB digital out to your USB digital input of your DAC has ground loop or other audible noise. This will eliminate the noise - for sure with optical, but coax should do the trick as well.3) Your want to output digital from a USB port but your DAC sounds best with coax or digital based on reviews or DAC maker's recommendation.4) You want to output your single USB digital to multiple devices - all of the digital outputs work simultaneously so you can connect each one to a different device.
RLV
2025-04-15 17:07:20
I bought this to connect my Wiim Ultra to the USB input of my DAC. I did the purchase on the advice of the Cheap Audio Man.Does it sound better than using a straight SPDIF output? I am not sure...it sounds the same to me.It works ok to convert a USB output to coax or toslink. In this regard, it works well and could be useful. As a "reclocker": this is what I bought it for, and I don't hear any difference.
August West
2025-04-03 20:00:11
I'm using it to reduce "jitter" in two applications where I doubt the source has low jitter. In my car, it re-clocks the output from my iPhone. There is a clear improvement in audio quality on a killer > $2000 aftermarket system - enables the system to sound as good as it should (I was a little disappointed before). I mostly hear it in the transients and overall clarity. I'm also using it to re-clock the signal from my WiiM Ultra before it goes into my Cambridge Audio irDAC that feeds a pair of self-powered AudioEngine A5+ speakers. The improvement is more subtle in that system, but still well worth the cost to me. The entire system punches WAY above its weight for a ~ $1000 Roon endpoint :o)
Peter H
2025-03-24 10:54:14
Much better than expected. Used between a Mac mini and Naim SuperUnit
nxs
2025-03-23 11:05:45
Ich nutze das Gerät im UAC1 Modus als DDC um das Stereo Signal der PS5 per Toslink zu meinem JDS Element 4 (DAC/Amp Combo) zu übertragen.Es wird im UAC1 Modus ohne Probleme von der PS5 als Audio Interface erkannt und verändert den Klang nicht.Aussetzer oder andere Probleme sind bisher nicht aufgetreten.
Christian Reymann
2024-12-26 12:37:32
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mztyo
2024-12-02 15:42:25
iPad mini6ã¨AVアンプ（YAMAHA RX-V6A）ã®é–“ã‚’ã¤ãªããŸã‚ã®DDCã¨ã—ã¦ä½¿ç”¨ã—ã¦ã„ã¾ã™ã€‚ストリーミングã®éŸ³æ¥½ã‚½ãƒ¼ã‚¹ã®ã‚µãƒ³ãƒ—ル周波数ã«è‡ªå‹•ã§è¿½å¾“ã—クリアãªéŸ³ã‚’å¥ã§ã¾ã™ã€‚NASã«ç½®ã„ãŸMQAデータも完璧ã«ã‚³ã‚¢ãƒ‡ã‚³ãƒ¼ãƒ‰ã—ã¦ãƒ‡ã‚¸ã‚¿ãƒ«ãƒ‡ãƒ¼ã‚¿ã«ã—ã¦ãã‚Œã¾ã™ã€‚DACã®ã‚¢ãƒŠãƒã‚°å‡ºåŠ›ã‚‚ã„ã„ã‘ã‚Œã©ã€ãƒ‡ã‚¸ã‚¿ãƒ«ç³»ã®ãƒ—リアンプを活ã‹ã—ãŸã„ãªã‚‰DDCを試ã™ä¾¡å€¤ã‚¢ãƒªã§ã™ã€‚
Navinda
2024-11-15 16:28:56
Works good in my setup connecting a iPad with camera adapter using i2s out to my Gustard R26 DACI like how it sounds in my system, highs are clear and doesn’t change the sound signature,
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