[Polky74]

For those interested, here is Andy's (Donglemadness) review of the RA2BFE + Prime DAC

 

[Neithan]

For those interested, here is Andy's (Donglemadness) review of the RA2BFE + Prime DAC

The combo I'm using right now with my Xeens Top

 

[Audiofilobrpt]

Sorry, I didn't understand... the matter is very simple: the PulWtop comes out with a long cable that must be connected to the streamer (in your case the Hiby) and then with a power cable that goes to the wall socket. The dongle must be connected to the latest USB type C of the Pulwtop... that is, the only one powered and which tells you how much current the dongle is absorbing. In my case the long PulWtop cable is connected to a PC USB because as it does not carry current it does not overload the socket you connect it to and therefore it can also be used on a computer USB without problems. I hope I was clear now.

Hello!! I bought this HUB, but I have a question and I hope I'm not bothering you and I'll be grateful if you can answer.

Will there be no problem with the dongle being connected to the powered USB port?
From what you said, the sound quality will benefit.
But, in the long term, won't the dongle components shorten their useful life because they are receiving a lot of load?

Thanks in advance!! Well, I have no knowledge about electrical components.

 

[Polky74]

Hello!! I bought this HUB, but I have a question and I hope I'm not bothering you and I'll be grateful if you can answer.

Will there be no problem with the dongle being connected to the powered USB port?
From what you said, the sound quality will benefit.
But, in the long term, won't the dongle components shorten their useful life because they are receiving a lot of load?

Thanks in advance!! Well, I have no knowledge about electrical components.

This cannot happen because it is the dongle that requests the current and not the hub that pushes it into it... when connected you will see that the instant current requested and therefore received by the dongle will appear on the display. If you notice there will be changes in the reading of the display precisely because the dongle requires that specific wattage in that specific second changing its absorption from time to time, this will be supplied by the switching type power supply with which the hub is equipped and therefore the power of amplification of the dongle will increase by say about 30%. Do a simple test... set the volume on the dongle to a value by listening to it not connected to the hub... and then without changing it connect it to the hub and you will hear how much its power increases, but everything happens in complete safety for it because it will never ask for more current than it can handle. The end result will be a much blacker background, much faster transients, all the musical parameters of the dongle will be pushed to their limits and as I was saying the power of its amplification will increase significantly. The dongle feeds on electricity and you give it better quality, more speed and as much as it wants.

 

[Audiofilobrpt]

Thank you very much for your detailed explanation! Fully understood!
For the price paid for the product and how much it can add to the sound quality, I think it is an important purchase for those who power the dongle directly from the computer's USB.
Great recommendation!
Thanks!

 

[Audiofilobrpt]

I have to thank you @Polky74 for this valuable tip. Never has Melody Gardot sounded so good on the S8 connected to the RU6 in NOS mode. It seems to have more power and the cell phone battery is not drained. Thanks!

 

[Polky74]

I have to thank you @Polky74 for this valuable tip. Never has Melody Gardot sounded so good on the S8 connected to the RU6 in NOS mode. It seems to have more power and the cell phone battery is not drained. Thanks!

See those 0.8 watts? No USB device could have provided them to the RU6 and therefore it would never have been able to play as it does now.

 

[Audiofilobrpt]

See those 0.8 watts? No USB device could have provided them to the RU6 and therefore it would never have been able to play as it does now.

It's incredible what this small product offers in terms of improving sound quality. Very good! Thanks!!

Edit: It even supplied 1w when I connected the Ibasso DC-elite.
Top!

 

[w3eonline]

It's incredible what this small product offers in terms of improving sound quality. Very good! Thanks!!

Edit: It even supplied 1w when I connected the Ibasso DC-elite.
Top!

Do u have a link to that product?? The pulwtop.


If i use a pc desktop charger with higher output. Lets say more than 20W . Is it also the same as the pulwtop hub??

Thanks

 

[Audiofilobrpt]

Do u have a link to that product?? The pulwtop.


If i use a pc desktop charger with higher output. Lets say more than 20W . Is it also the same as the pulwtop hub??

Thanks

I bought it on Amazon Spain.

If you are in the US, must have this product on Amazon us.

And about the desktop HUB, I'll let @Polky74 answer. He was the one who gave me this valuable tip.
I don't know how to answer you, sorry!

 

[Polky74]

As @Audiofilobrpt said, you can find PulWtop on Amazon or even on its official American website:

https://pulwtop.com/products/pulwto...0gbps-ports-for-imac-macbook-pro-air-ipad-xps

As regards the possible use of other USB hubs, I can't give you an answer because the PulWtop was recommended to me by a friend who understands it (unlike me) and many of us use it now and I followed his advice without having to other experiments that could have damaged the dongles I care about.

 

[w3eonline]

As @Audiofilobrpt said, you can find PulWtop on Amazon or even on its official American website:

From the video of their site. I think the diffrence are at the input of pulwtop that its a dc input. While most hub using an AC input. Wonder if thats can cause any damage or not

 

[Neithan]

I was finally able to charge my Runabout AMP and my god it is so good.
The power, the controlled bass, the details... Love this AMP.
I was listening the Dune 2 OST with my Xeens Top and is epic

 

[Polky74]

I have to be honest and say that I can't find a single fault with this amplifier:

1) Very high power and despite this excellent volume regulation even in the absence of gain regulation.
2) Complete transparency towards the DAC that is powering it (don't look for any colouring, it simply doesn't have any).
3) Filling the sound stage without favoring any frequency.
4) Stage at the maximum levels permitted by the DAC and IEM/headphones
5) Practically black background (provided you don't have the iem amplified below 16ohm)
6) Impeccable sound performance respecting the DAC connected to it, what reaches it is amplified (in every sense) and returned tu you.
7) No changes in positioning (forward/backward) of female/male voices, just a thickening of the notes, of the sound in general and lots of air in the highs as well as an incredible separation of the instruments.
8) Essential and solid construction... it lacks nothing and has nothing that is not useful for its purpose.
9) Incredible battery life, while its best competitors only reach 10 hours (balanced), it doubles and almost triples this value.
10) It costs as much as a dongle and less than an IEM cable... and not even the most expensive ones.

I recommend it to anyone who thinks that a dongle/DAP can properly amplify an IEM because it is so simple to drive. Try inserting the RA2BFE into your chain and then try removing it... you will immediately understand how wrong you were.

 

[Neithan]

I have to be honest and say that I can't find a single fault with this amplifier:

1) Very high power and despite this excellent volume regulation even in the absence of gain regulation.
2) Complete transparency towards the DAC that is powering it (don't look for any colouring, it simply doesn't have any).
3) Filling the sound stage without favoring any frequency.
4) Stage at the maximum levels permitted by the DAC and IEM/headphones
5) Practically black background (provided you don't have the iem amplified below 16ohm)
6) Impeccable sound performance respecting the DAC connected to it, what reaches it is amplified (in every sense) and returned tu you.
7) No changes in positioning (forward/backward) of female/male voices, just a thickening of the notes, of the sound in general and lots of air in the highs as well as an incredible separation of the instruments.
8) Essential and solid construction... it lacks nothing and has nothing that is not useful for its purpose.
9) Incredible battery life, while its best competitors only reach 10 hours (balanced), it doubles and almost triples this value.
10) It costs as much as a dongle and less than an IEM cable... and not even the most expensive ones.

I recommend it to anyone who thinks that a dongle/DAP can properly amplify an IEM because it is so simple to drive. Try inserting the RA2BFE into your chain and then try removing it... you will immediately understand how wrong you were.

It's a superb device.
And the Prime DAC is very good as well.
I feel no need to upgrade