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
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DavidS11

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This is a dedicated thread for discussions and user experience on the new Lotoo PAW S1.

From the Lotoo FB page:

Featuring Lotoo’s advanced DAP architecture from the PAW Lineup, the Lotoo PAW S1 has been created to raise the bar to previously unknown heights in the field of Portable USB DACs. Easy PLUG-&-PLAY installation for a hassle-free setup turns your smartphone into a high-resolution music player in no time!
  • High-Performance and High Utilization of the AKM4377 DAC chip
  • 4.4 Balanced & 3.5 Single-Ended Dual Output Design
  • 120mW@32Ω (per channel), great for headphones and IEMs uses alike
  • Multiple OS Supported (PC, Mac, Android and iOS)
  • Built-In Studio Quality PMEQ/ATE to create an immersive soundstage (including new pre-sets: Game and Movie)
  • Gain Control to accommodate a wider range of headphones and IEMs
  • Pure Black Background
  • OLED Screen and CNC Crafted Aluminium Alloy Body for better Build and Ergonomics
81605108_2696537160439257_4111816017754193920_o.jpg
96519504_2961790590580578_6763689410836824064_o.jpg
 
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DavidS11

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You forgot to mention that it supports firmware updates and more features will be added in time.
yes, firmware updatable with promised of future update to enable MQA too

Free feel to add/comments any other info. No official spec released from Lotoo yet.
 
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musicday

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The power output in single ended is 70 mW@32 ohm just like the Hidizs AP80 Pro. Impressive.

SPECIFICATIONS
Supported Format:
PCM 32K-384KHz DSD64/DSD128

Weight: 27.10g

Size: 66mm*22mm*13mm

Max Output: 3.5mm:70mW/ch @32Ω

4.4mm:120mW/ch @32Ω

HP Port: 3.5mm Unbalanced

4.4mm Balanced

Freq. range: 3.5mm: 20-20KHz..+0/-0.017dB

4.4mm: 20-20KHz..+0/-0.016dB

USB Port: USB Type C

Noise Level: 3.5mm: -118dBu

4.4mm: -114dBu

Screen: OLED 128x32

THD+N.. Low gain: -106dB(0.0005%)

High gain: -108dB(0.0004%)

OS.. LTOS

S/N: 3.5mm: 123dB

4.4mm: 122dB
 
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Lu88

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FYI:

Japanese official product page
http://lotoo.jp/PAWS1_Overview.html

Japanese support page(firmware download)
http://lotoo.jp/Manual_PAWS1.html

The latest firmware 1.0.0.5 changelog:
- New feature: Added "Radio" preset to ATE(EFX)
- Fixed: L/R is reversed at 3.5mm output during DSD playback.

How to update firmware:
1. Connect PAW S1 to PC in firmware update mode
Hold down the "Fn" button on PAW S1 and connect to the PC with the USB cable.
“Waiting” appears on the display and the PAW S1 is recognized as a removable disk by the PC.

2. Transfer the firmware to PAW S1
Copy PAW-S1.coe (firmware file) to the root directory of the removable disk.
The firmware update will start automatically, and when it finishes, the PAW S1 will display “Successful” and the removable disk will be automatically derecognized.

3. Disconnect PAW S1 from PC
Unplug the USB cable and disconnect the PAW S1 from the PC. The firmware update is now complete.
 
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jeffri

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Still waiting for mine, can't wait. Already made 4.4mm cable for my IEM in preparation for this. :)
 
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Lu88

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FYI:

Japanese official product page
http://lotoo.jp/PAWS1_Overview.html

Japanese support page(firmware download)
http://lotoo.jp/Manual_PAWS1.html

The latest firmware 1.0.0.5 changelog:
- New feature: Added "Radio" preset to ATE(EFX)
- Fixed: L/R is reversed at 3.5mm output during DSD playback.

How to update firmware:
1. Connect PAW S1 to PC in firmware update mode
Hold down the "Fn" button on PAW S1 and connect to the PC with the USB cable.
“Waiting” appears on the display and the PAW S1 is recognized as a removable disk by the PC.

2. Transfer the firmware to PAW S1
Copy PAW-S1.coe (firmware file) to the root directory of the removable disk.
The firmware update will start automatically, and when it finishes, the PAW S1 will display “Successful” and the removable disk will be automatically derecognized.

3. Disconnect PAW S1 from PC
Unplug the USB cable and disconnect the PAW S1 from the PC. The firmware update is now complete.
And here is in Chinese.
http://www.lotoo.cn/pro/pro2/PAW_S1/
http://www.lotoo.cn/about/fuwu/xiazaizhuanqu/yinlebofangqi/20200519/94.html
 
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musicday

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Still waiting for mine, can't wait. Already made 4.4mm cable for my IEM in preparation for this. :)
I would like to get a DIY 4.4 mm cable for my modified Koss Porta Pro. Any idea where I should look?
 
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davidmolliere

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Eagerly waiting for mine, it's on its way!
 
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Does anyone have one of these in hand yet? I recently decided to pick up a creative sxfi amp instead of this as I originally intended it for much more casual listening, and also to be used for tv shows/movies. I know it only shares the same dac chip with this, so probably not a great comparison. But it hisses pretty badly with my new solaris 2020, and I think the amp portion there isnt the greatest as with the ifi iematch, full volume is still not that loud. So I am wondering how the noise floor is on this, especially with much more sensitive IEMs. I may pick one up anyways, but would prefer not to spend the extra money if its going to hiss.
 
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musicday

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Does anyone have one of these in hand yet? I recently decided to pick up a creative sxfi amp instead of this as I originally intended it for much more casual listening, and also to be used for tv shows/movies. I know it only shares the same dac chip with this, so probably not a great comparison. But it hisses pretty badly with my new solaris 2020, and I think the amp portion there isnt the greatest as with the ifi iematch, full volume is still not that loud. So I am wondering how the noise floor is on this, especially with much more sensitive IEMs. I may pick one up anyways, but would prefer not to spend the extra money if its going to hiss.
Lotoo products are one of the best in the market,.so you should not worry about hiss. There should be completely quiet background.
 
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Does anyone have one of these in hand yet? I recently decided to pick up a creative sxfi amp instead of this as I originally intended it for much more casual listening, and also to be used for tv shows/movies. I know it only shares the same dac chip with this, so probably not a great comparison. But it hisses pretty badly with my new solaris 2020, and I think the amp portion there isnt the greatest as with the ifi iematch, full volume is still not that loud. So I am wondering how the noise floor is on this, especially with much more sensitive IEMs. I may pick one up anyways, but would prefer not to spend the extra money if its going to hiss.
I tried it with my Phantom and it was dead silent even on high gain. @twister6 also tried the Solaris and did not get any hiss with those either.
 
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mashuto

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Lotoo products are one of the best in the market,.so you should not worry about hiss. There should be completely quiet background.
Good to know, but lots of high end players still hiss with sensitive gear, not necessarily a quality thing, more just about how they are designed.

I tried it with my Phantom and it was dead silent even on high gain. @twister6 also tried the Solaris and did not get any hiss with those either.
Also good to hear. Early impressions I have been reading have been quite good.
 
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