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SMSL DO100 Review (Stereo DAC)

Rate this DAC:

  • 1. Poor (headless panther)

    Votes: 1 0.4%
  • 2. Not terrible (postman panther)

    Votes: 4 1.4%
  • 3. Fine (happy panther

    Votes: 26 9.3%
  • 4. Great (golfing panther)

    Votes: 248 88.9%

  • Total voters
    279

GPJ

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Jan 3, 2019
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I am going to give these a shot, and send them back if they don't work (will have them tomorrow):


They are rated with only USB 2.0 so hoping that is the ticket.

These cables do not work and are going back FWIW.

Tried 4 different USB C to C cables, none worked. Finnicky DO100 USB-C for certain. Hate it when that happens. I'll take the tried and trusty USB-B on a DAC over C any day of the week. They always work.
 
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JeffGB

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These cables do not work and are going back FWIW.

Tried 4 different USB C to C cables, none worked. Finnicky DO100 USB-C for certain. Hate it when that happens. I'll take the tried and trusty USB-B on a DAC over C any day of the week. They always work.
The D0100 uses usb 1.1 (with limitations) and usb 2.0. It is not actually a usb c device, so the included usb c to usb a works fine or any other usb c to usb a cable. I'm using a generic usb c to usb a cable into a usb 3 hub and then to my usb 2/3 port on my computer and it works fine. I'm not sure how compatible some real usb c ports on computers are with a usb 2 device. Good luck!
 
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GPJ

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Using a C to C would be ideal but it's hardly a deal breaker for this incredible DAC. Putting a C connector in a DAC is kind of silly if it doesn't work directly with other C devices, without using an adapter. IMO of course.

Although, as I mentioned, my Xduoo device does work C to C but only by using the Xduoo C to C cable which is much to short. Trying to find a longer cable that works is proving to be futile.
 

06S2k07Si

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I just purchased one of these and can't get it to connect via USB to my android LG V60 at all. I also purchased a D-6 and it works great with that (and both of my Topping D50s's and D90's without issue)... what is different about this D0100?
 

GPJ

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Welcome to the world of adapters. Did your phone include a USB-C to standard USB adapter? Like this one:


This will turn the connection into a legacy one which the DO100 supports (only USB 2.0 max).

Or go insane trying to find a cable that actually works.

Kind of ridiculous huh? USB-C is a nightmare IME, 24 available pins with each manufacturer wiring the connectors however they see fit.
 
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06S2k07Si

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Welcome to the world of adapters. Did your phone include a USB-C to standard USB adapter? Like this one:


This will turn the connection into a legacy one which the DO100 supports (only USB 2.0 max).

Or go insane trying to find a cable that actually works.

Kind of ridiculous huh? USB-C is a nightmare IME, 24 available pins with each manufacturer wiring the connectors however they see fit.
Yea...I thought about that but I didn't bother. I simply sent it back and decided to keep the D-6 instead. I liked the functionality of the D-6 better anyway. Thanks
 

geoffhop

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Jul 11, 2022
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Hi there
Anybody have any ideas why I can only get a sample rate of 44.1 out when using USB 2.0 as input?
I have tried on both a Windows 11 box (with the USB driver installed) and on a RPi 4 running Ubuntu Mate 20.04 and regardless of the sample rate of the track I am playing it says only 44.1 on the LED of the device. On the Windows 11 box I can force it to use a specific bit depth and sample rate i.e. 24/176 by setting the "default format" on the device in Windows but whatever track I play regardless of the track's codec it will just state 176 (or whatever default I use) and when I turn off the DAC it reverts to 44.1 when I turn it back on. How do I get it auto detect the sample rate of the track and just play at that sample rate?
Am I missing something obvious here?
Thanks in advance
Geoff
 

Veri

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On the Windows 11 box I can force it to use a specific bit depth and sample rate i.e. 24/176 by setting the "default format" on the device in Windows but whatever track I play regardless of the track's codec it will just state 176 (or whatever default I use) and when I turn off the DAC it reverts to 44.1 when I turn it back on.
Yeah that's just how most operating system's internal audio will work. It sill sample to the system-set sample rate. If you want it to adapt every time, i.e. different source files, you need a media player that sets the rate accordingly, most easily achieved by having "exclusive" control of the audio device over ASIO or WASAPI on windows for example.
 

staticV3

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Anybody have any ideas why I can only get a sample rate of 44.1 out when using USB 2.0 as input?
That's because you're using the Wasapi shared or Direct Sound API, which will resample everything to the sample rate selected in the Sound Control Panel.

How do I get it auto detect the sample rate of the track and just play at that sample rate?
Use the Wasapi Exclusive or ASIO API instead. Foobar2000 can do both after installing the respective plugins.
 

geoffhop

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Yeah that's just how most operating system's internal audio will work. It sill sample to the system-set sample rate. If you want it to adapt every time, i.e. different source files, you need a media player that sets the rate accordingly, most easily achieved by having "exclusive" control of the audio device over ASIO or WASAPI on windows for example.
Thanks Veri that makes sense. So using the RPi 4 as an example are you aware if media software such as Volumio etc. is able to achieve this control?
 

geoffhop

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That's because you're using the Wasapi shared or Direct Sound API, which will resample everything to the sample rate selected in the Sound Control Panel.


Use the Wasapi Exclusive or ASIO API instead. Foobar2000 can do both after installing the respective plugins.
Thanks for the reply. That makes sense thank you, my end game is to try to use my RPi4 as a media server so although Foobar is not really viable I was thinking along the lines of Volumio or some other variation on that. Do you have any idea if that is achievable via media server software applicable to a RPi? Thanks again. Geoff
 

Graham849

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2 month lurker. Really appreciate all the comments here. For 20 years used Yamaha TSS-1 Dolby Digital / DTS 5.1 Surround Speaker system until (L) front channel died. Somehow found ASR and thanks to great review purchased the DO100 and AO200. Very happy with sound. Stereo sound stage is better than surround I am used to. :) Thanks again! My questions, I am in mid '60's and I cannot really hear any change in different filters. Is that old age? Also not sure if anyone is familiar with Fosi BT30D which I am using to drive subwoofer: is it possible to kill bluetooth on it| as it interferes with connection to DO100 from my phone.
 

staticV3

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My questions, I am in mid '60's and I cannot really hear any change in different filters. Is that old age?
No. I'm in my early twenties with excellent hearing and can't hear a difference either. The different filters are more academic than anything else.
Also not sure if anyone is familiar with Fosi BT30D which I am using to drive subwoofer: is it possible to kill bluetooth on it
You can probably open it up and physically disconnect the power to the BT module, though that's more of an advanced mod. Multimeter strictly required!
 

Graham849

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Thank you, will get a dedicated subwoofer amp. Final (I hope) question is it safe to connect 3.5mm female to 2 RCA Male audio Y cable to unbalanced outputs of D0100 to connect headphones for occasional use?




 

Dunring

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Thank you, will get a dedicated subwoofer amp. Final (I hope) question is it safe to connect 3.5mm female to 2 RCA Male audio Y cable to unbalanced outputs of D0100 to connect headphones for occasional use?
I just got this DAC and have the adapter, so I tried what you're asking with the Drop PC37x headset to test. At 70 volume and the headset volume wheel all the way up now it sounds really good. 90 percent volume and this is getting really loud. Sound quality is really nice too, crystal clear. The Hifiman HE4xx needs more power, but if you have reasonable headphones just go for it. Nice to know if the amp ever goes out I can just plug these in and it sounds terrific.
 

staticV3

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Thank you, will get a dedicated subwoofer amp. Final (I hope) question is it safe to connect 3.5mm female to 2 RCA Male audio Y cable to unbalanced outputs of D0100 to connect headphones for occasional use?
A DAC's line out is not designed for driving headphone loads.
Doing so will put stress on the output and could lead to damage.
I doubt this kind of damage would be covered by SMSL's warranty.
 

Graham849

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I just got this DAC and have the adapter, so I tried what you're asking with the Drop PC37x headset to test. At 70 volume and the headset volume wheel all the way up now it sounds really good. 90 percent volume and this is getting really loud. Sound quality is really nice too, crystal clear. The Hifiman HE4xx needs more power, but if you have reasonable headphones just go for it. Nice to know if the amp ever goes out I can just plug these in and it sounds terrific.
Thank you, I will think about it as per staticV3 comment
 

Graham849

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A DAC's line out is not designed for driving headphone loads.
Doing so will put stress on the output and could lead to damage.
I doubt this kind of damage would be covered by SMSL's warranty.
Thank you and noted.
 

curly747

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These cables do not work and are going back FWIW.

Tried 4 different USB C to C cables, none worked. Finnicky DO100 USB-C for certain. Hate it when that happens. I'll take the tried and trusty USB-B on a DAC over C any day of the week. They always work.
I am not having a problem with USB-C to USB-C cables. I am connecting the DAC to an ipad and also an android phone. I have used the cable that came with the ipad which is probably rated as thunderbolt and that worked. I have used a USB-C to USB-C cable that came with a dell computer monitor and that worked. I have also used a USB-C to USB-C cable i bought from amazon and that worked fine. (it was a UGREEN brand cable but looks similar specs to the one you tried) When i say it worked fine, i can play amazon music unlimited at 192 khz from the android phone and from the ipad. With the phone i have to tick the usb OTG setting for it to work. I have also tried connecting a Dell laptop using USB-C to USB-C and that works although had to instal a driver and seems a bit more tricky than other connections.
 

ghunty

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For the life of me ...Can you believe this . I can not find a good USBA (from computer ) to my DO100 USBC jack . I need it to be 10 foot long and would like it to be a USBA to USBC Audio cable. Why is the so hard to get ? Also I would like to try connecting to my 3.5 amazon Echo Dot to my DO100 ,I can not find a 3.5 mm jack male to toslink cable or a even a small Toslink adapter 3.5 end = to toslink . Or even the same senerio for Coaxial also
Please provide me some link of love ?
Thanx again
Gary
 
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