Lotoo PAW S2 USB DAC AMP 150 mW@32 ohm 4.4 , MQA - New Firmware released 26 January 2.0.0.5 link added first post.
Sep 8, 2021 at 4:42 PM Thread Starter Post #1 of 443

musicday

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Lotoo released new PAW S2 USB DAC dongle that will follow after the huge success of the PAW S1 much loved by the audio community around the world.

This will likely be a direct competition to the also very popular and more powerful Luxury & Precision W2.
The price is 249 USD.

New firmware released 26 January 2.0.0.5
https://www.lotoo.cn/english/bottom/Service/Download/Hi_Fi_Music_Player/2021/0908/102.html

2.0.0.5
1. System stability improved.
2. Bug fix on some 96kHz files that have odd audio issues.
 

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Sep 8, 2021 at 10:05 PM Post #2 of 443
《 New Product Launch 》

Successor to the widely acclaimed PAW S1, the PAW S2 comes with an increased complement of a ground-breaking new circuit design, resultingly the performance achieved is awe-inspiring despite its diminutive size.

Powered by the now legendary AKM4377 DAC chip and coupled with the full suite of Lotoo’s advanced audio technologies, PAW S2 has raised the bar again for the ever portable, compact, dongle-style USB DACs.


HIGHLIGHTS

1. Superior sound technologies encased in a rugged but sleek design

2. High Resolution without high power consumption

3. New “Remote Control” feature & New OTG Cables available in two different lengths (65mm & 800mm); can be paired with the belt-clip

4. Potent enough to drive even demanding headphones

5. 4.4 Balanced & 3.5 Single-Ended Dual Outputs

6. MQA Certified


MSRP: USD249


For more information, please visit our website:
https://www.lotoo.cn/english/
 

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Sep 8, 2021 at 11:55 PM Post #4 of 443
Hmm

Would like to see a side by side comparison between the S1 and S2.
 
Sep 9, 2021 at 2:11 AM Post #6 of 443
I see the S2 page is now up on their website: http://www.lotoo.cn/english/Hi_Fi_Player/PAW_S2/

Strangely it doesn't look like much is different from the S1. The same DAC chip, same jitter reduction chip, EQ options seem the same (did the S1 have the Blackfin chip?, it isn't mentioned on the S1 page but is on the S2). Both made with CNC aluminium case, the same size. The S2 has an extra play/pause button and the cable might be a new iteration.

The specs are a little different. Power has increased a bit:
  • 3.5mm: 70 mW/channel at 32 ohms up to 125 mW per channel at 32 ohms
  • 4.4mm: 120 mW/channel at 32 ohms up to 150 mW per channel at 32 ohms
Noise floor is reduced a by 3 dBU on 3.5mm and 5 dBU on 4.4mm.

THD+noise is 1-3 dB lower on S2.

This picture makes me wonder whether they've incorporated extra EMI shielding inside the unit (the grey sheets on either side of the circuit board):
3.jpg
 
Sep 9, 2021 at 9:57 AM Post #9 of 443
Any word on when this is supposed to be released? I was just looking to buy an S1 and then saw this. I guess this also explains why no one sells the Lotoo OTG lightning cable for iPhone anymore as it’s being replaced imminently.
 
Sep 9, 2021 at 12:12 PM Post #14 of 443
I hope it has a lot better shielding than the S1. I found it unusable on my iPhone. W2 has no issues with the same phone.
That’s good to hear. I might look into the W2 then. I originally steered away from it because I saw a review from one of the major online publications that said the W2 did have issues with EMI interference from cellphones and also made a comment about some issues with the usb connection being recognized on a cellphone.
 

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