[buson160man]

Are you talking about this product: https://www.project-audio.com/en/product/accu-box-s2-usb/ ?
If yes, does it support simultaneously charging and discharging? Because, in my opinion, 2600 mha is too small capacity, especially if I have to stop listening to charge the battery .In any case, no doubt in sound improvement..

The supply does have a limitation of six hours play time for an eight hour charge. Which I have yet to test. But I guess the time is a limited amount. But the improvement in sound quality is easily heard .

 

[buson160man]

Are you talking about this product: https://www.project-audio.com/en/product/accu-box-s2-usb/ ?
If yes, does it support simultaneously charging and discharging? Because, in my opinion, 2600 mha is too small capacity, especially if I have to stop listening to charge the battery .In any case, no doubt in sound improvement..

Are you talking about this product: https://www.project-audio.com/en/product/accu-box-s2-usb/ ?
If yes, does it support simultaneously charging and discharging? Because, in my opinion, 2600 mha is too small capacity, especially if I have to stop listening to charge the battery .In any case, no doubt in sound improvement..

 

[buson160man]

Are you talking about this product: https://www.project-audio.com/en/product/accu-box-s2-usb/ ?
If yes, does it support simultaneously charging and discharging? Because, in my opinion, 2600 mha is too small capacity, especially if I have to stop listening to charge the battery .In any case, no doubt in sound improvement..

The total play time for a full charge is listed as six hours. The quoted full charge time is eight hours. I have not tested that limit yet. But that is what the manual listed. But the sound improvement is quite noticeable while using the battery supply.

 

[radekhulan]

I'm going to try Power box S2.
A linear power supply, that can run 24/7.
Curious about improvements and how it could compare to Accu box.

https://www.project-audio.com/en/product/power-box-s2/

 

[Baten]

I'm going to try Power box S2.
A linear power supply, that can run 24/7.
Curious about improvements and how it could compare to Accu box.

https://www.project-audio.com/en/product/power-box-s2/

Weird device, it does not use LPSU? It has a switching input?

 

[HiFlight]

I have been using an EasyACC lithium ion power bank in lieu of the included wall-wart. Sounds great, has a switch for on/off and lasts for days with a capacity of 26,000 mah.

 

[radekhulan]

Great choice at 42 GBP:
https://www.amazon.co.uk/EasyAcc-26000mAh-External-Battery-Portable/dp/B016DA61V2

Thanks.

Anyway, Power Box S2 is non-switching:
https://www.avforums.com/news/pro-ject-announce-power-box-s2-and-accu-box-s2-power-supplies.15901

 

[radekhulan]

If you are having problems with MQA music dropouts when using Tidal / Windows 10 / Pro-Ject Pre Box S2 combo, Audioquest Jitterbug might help ( https://www.audioquest.com/jitterbu...ower-noise-filter/usb-data-power-noise-filter ). No more dropouts for me after several hours of listening

Other workaroud is to use MQB, let Tidal (or Roon) do the first unfold.

 

[Baten]

Great choice at 42 GBP:
https://www.amazon.co.uk/EasyAcc-26000mAh-External-Battery-Portable/dp/B016DA61V2

Thanks.

Anyway, Power Box S2 is non-switching:
https://www.avforums.com/news/pro-ject-announce-power-box-s2-and-accu-box-s2-power-supplies.15901

Ahh, thanks for clarifying. It uses lithium battery cells, which get powered via the power inlet.
So basically. A fancy battery with 3 outputs

If you are having problems with MQA music dropouts when using Tidal / Windows 10 / Pro-Ject Pre Box S2 combo, Audioquest Jitterbug might help ( https://www.audioquest.com/jitterbu...ower-noise-filter/usb-data-power-noise-filter ). No more dropouts for me after several hours of listening

Other workaroud is to use MQB, let Tidal (or Roon) do the first unfold.

Dropouts is not the same as noise/jitter though. I have little faith in something like jitterbug doing anything worthwhile ...

 

[HiFlight]

Ahh, thanks for clarifying. It uses lithium battery cells, which get powered via the power inlet.
So basically. A fancy battery with 3 outputs


Dropouts is not the same as noise/jitter though. I have little faith in something like jitterbug doing anything worthwhile ...

I believe only the Accu Box contains rechargeable batteries. The Power Box is a non-switching power supply but not a source of battery power.

 

[radekhulan]

Dropouts is not the same as noise/jitter though. I have little faith in something like jitterbug doing anything worthwhile ...

Neither do I I can return the product within 14 days, but it does seem to help in my particular case. 13 more days to decide..

 

[Baten]

Neither do I I can return the product within 14 days, but it does seem to help in my particular case. 13 more days to decide..

good call, trying first is always good

 

[chauphuong]

Do optical and coaxial ports of S2 support MQA?

 

[HiFlight]

Do optical and coaxial ports of S2 support MQA?

Only through USB. That said, my source DX200 using the USB Audio Player Pro app does decode MQA ahead of my S2 so in this way I do have MQA via the coax input, although MQA or MQB is not indicated on my S2 screen.

 

[Vicca Tito]

It heavily depends on the signal chain in the front of your coax input (which does support up to 24/192 sampling rates) so possibly would have used ProJects MQA decoding abilities if first unfold has already been made through Roon or Tidal/various OS.