Lotoo PAW S1 - Designed for HIFI on the go with Lotoo PAW quality and the first USB DAC-AMP with dual 3.5mm & 4.4mm output

May 24, 2020 at 2:52 PM Post #107 of 2,329
No idea why its named Dental but I think that's going to be my go to EQ option. Its cleaner then no EQ and a little more full than the Sweet preset. I think this would be my ranking - Dental, Sweet, None. The others mess with the sound too much for me, so seems like I'll cycle through those depending on the music.

Sticking with my previous impression that the S1 is awesome and a bargain for the price. Nice to have a plug and play option that works on Samsung phones without issues. Battery drain seems minor and the unit barely gets warm after an hour of use. Only issue I've had - drop the unit volume down if you use UAPP on Android. It maxes out system volume, learned that the hard way on high gain with IEMs :)

I'll probably buy another one to keep at work. Time to sell some gear now...
 
May 24, 2020 at 8:13 PM Post #109 of 2,329
Question for owners of this dongle (and others)... What’s your use model? Do you use dongles as a convenient desktop solution (with phone, DAP, or laptop), or as an on-the-go solution? The reason I ask is that I find that the USB connections are pretty flaky when I carry around these solutions in a pocket - jostle the cable and the connection is easily broken.
 
May 25, 2020 at 2:29 AM Post #110 of 2,329
Question for owners of this dongle (and others)... What’s your use model? Do you use dongles as a convenient desktop solution (with phone, DAP, or laptop), or as an on-the-go solution? The reason I ask is that I find that the USB connections are pretty flaky when I carry around these solutions in a pocket - jostle the cable and the connection is easily broken.
I use them with my DAPS : pioneer xdp100r and hiby r3. They both sound better with lotoo paw s1. I don’t get interuptions even if i hang the s1 out of my pocket.
 
May 25, 2020 at 1:34 PM Post #111 of 2,329
I use them with my DAPS : pioneer xdp100r and hiby r3. They both sound better with lotoo paw s1. I don’t get interuptions even if i hang the s1 out of my pocket.

Did you try to change volume on R3 while connected to S1? The volume should not change (volume can only be adjusted from within open android daps or smarpthones, otherwise S1 volume adjustment only). But when changing the volume on R3/pro, it reboots, and the same with its AP80/pro clone.
 
May 25, 2020 at 3:15 PM Post #112 of 2,329
May 25, 2020 at 4:48 PM Post #114 of 2,329
I am not sure how the math works with these things but would the 4.4mm use the battery faster than 3.5mm, or is it more power with same battery use?
Power consumption will be higher on 4.4 balanced mode. Also depends how loud you are listening and what earphones you are using.
3.5 is 70 mW and 4.4 is 120 mW maximum output.
 
May 25, 2020 at 6:12 PM Post #115 of 2,329
I am not sure how the math works with these things but would the 4.4mm use the battery faster than 3.5mm, or is it more power with same battery use?

I use 4.4, volume 50 with IEMs between 7 and 40 ohms and it equates to 6/7% battery drain on an iPhone XS Max
 
May 25, 2020 at 8:03 PM Post #116 of 2,329
OK, so here is a little nerd experiment I did with S1 connected to my Galaxy S9 and LPGT/LP6k, monitoring 5V supply in series to see what's happening with a current draw from a source.

First of all, does not matter if it's a smartphone, android dap, or non-android DAP. And it is also the same if I'm using IEMs connected to 4.4mm or 3.5mm output. Plus, the same either if I'm playing mp3, flac, or DSD files. The current draw is stable and reads the same. At a normal listening level in high gain, S1 is drawing about 70mA of current from the source. But when you raise the volume higher, it can go up to 80-90mA. And so that I don't blow my iems, I used ibasso load dongle and see the current going up to 90mA at volume level of around 95-96. When it is closer to max 100, it probably in some saturation state where the current draw is oscillating a bit.

Again, keep in mind, I'm "sniffing" the amount of current drawn from the source by S1 from usb-c output. This is not headphone output or anything related to audio output.

Under the same test conditions, here are how much some of the other USB DAC/amp dongles draw current from the same sources at the same normal listening level:

Lotoo S1 => 4.99V, 0.070 A
AudioQuest DF v1.2 => 4.98V, 0.100 A
Hidizs S8 => 5.01V, 0.030 A
iBasso DC01 => 4.98V, 0.90 A
Cozoy Aegis => 4.93V, 0.130 A

lotoo-s1-22.jpg lotoo-s1-23.jpg
 
May 26, 2020 at 3:39 AM Post #117 of 2,329
Did you try to change volume on R3 while connected to S1? The volume should not change (volume can only be adjusted from within open android daps or smarpthones, otherwise S1 volume adjustment only). But when changing the volume on R3/pro, it reboots, and the same with its AP80/pro clone.
yes, the volume doesn't change on R3 when s1 conected (you can adjust only s1 volume)
 
May 26, 2020 at 4:37 AM Post #118 of 2,329
I find Dental EFX on Lotoo S1 the best (I am not an eq fan but this sounds amazing). It enchanted details in a very nice way, without affecting the tonality.
Audiosense T800 and Shuoer Tape with lotoo paw s1 on dental efx sounds much better than without eq.
 

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