[Hyde00]

Cayin Ru6 or Chord Mojo?

Was looking at Mojo for a long time too until this come along.

RU6

Damn that's impressive. Which might work better since I don't want to deal with Mojo's battery actually.

 

[emilsoft]

Was looking at Mojo for a long time too until this come along.

Damn that's impressive. Which might work better since I don't want to deal with Mojo's battery actually.

RU6 is better. Mojo sounds DSP and processed.

 

[HiFiHawaii808]

Cayin Ru6 or Chord Mojo?

It depends on what you are pairing it with. If you need a warmer presentation and/or power, then Mojo is it. If you want a more natural presentation, then RU6. Both are good.

 

[HiFiHawaii808]

RU6 is better. Mojo sounds DSP and processed.

You would expect posts like this in the RU6 thread. If the question was posted in the Mojo thread, you would get the opposite.

 

[syazwaned]

It depends on what you are pairing it with. If you need a warmer presentation and/or power, then Mojo is it. If you want a more natural presentation, then RU6. Both are good.

Thanks Friend

 

[hoofman]

What about for Windows? I think their product page says Windows OS need to download a driver made for RU6 from official website.

Or is it one of those if you want to go higher than certain sampling rate, otherwise plug and play?

I'm using the RU6 with my Surface Go without any driver installed. It works right out of the box and I don't feel like I'm missing anything (I'm using direct audio though. ASIO and WASAPI don't work. I think you need to install driver to use those)

 

[Technological]

After reading all 84 pages may I conclude we haven't found an Android USB-C charger/splitter that has 5V output power without adding DAC nonsense, that allows us to charge the phone wired while simultaneously using the RU6?

That's more than a bit annoying to be honest; not even because of the reading hours involved. It pretty much makes long listening sessions impossible

drftr

There are options without built in DAC's. It's just the form factor which most are looking for always comes with a built in DAC. It is true that some of those built in DAC's have a pass though mode but depends on the DAC chip and I just prefer to get that out of the signal chain so I suggest using a USB C splitter which splits to USB C for PD and USB A for data. This type doesn't have a DAC built in as they are intended for use with other periferals and then if you use a small USB A to USB C adapter you are good to go.

Such as thses splitters:
https://smile.amazon.com/dp/B0968Q7...abc_QVMCSSPVCTRQNFAHJC63?_encoding=UTF8&psc=1

https://smile.amazon.com/dp/B08C5FW...abc_JJ36YRMM9XB6QKXX9D9B?_encoding=UTF8&psc=1

Such as this USB A to USB C adapter
https://smile.amazon.com/dp/B072M9L...abc_R7CSYKPSQ2D7FT50WCTT?_encoding=UTF8&psc=1

 

[Andykong]

I'm using the RU6 with my Surface Go without any driver installed. It works right out of the box and I don't feel like I'm missing anything (I'm using direct audio though. ASIO and WASAPI don't work. I think you need to install driver to use those)

It depends whether your Windows system has USB Audio Driver 2.0 pre-installed. Starting with Windows 10, release 1703, a USB Audio 2.0 driver is shipped with Windows. It is designed to support the USB Audio 2.0 device class. Anything before that will need to install USB Audio Driver to get it work.

Yes, the USB Audio 2.0 driver provided by Windows 10 does not support DAIO and WASAPI, if you want to playback DSD file on your PC to RU6 setup, you still need to install Cayin USB driver even you have windows 10 post 1703.

 

[Andykong]

There are options without built in DAC's. It's just the form factor which most are looking for always comes with a built in DAC. It is true that some of those built in DAC's have a pass though mode but depends on the DAC chip and I just prefer to get that out of the signal chain so I suggest using a USB C splitter which splits to USB C for PD and USB A for data. This type doesn't have a DAC built in as they are intended for use with other periferals and then if you use a small USB A to USB C adapter you are good to go.

Such as thses splitters:
https://smile.amazon.com/dp/B0968Q7...abc_QVMCSSPVCTRQNFAHJC63?_encoding=UTF8&psc=1

https://smile.amazon.com/dp/B08C5FW...abc_JJ36YRMM9XB6QKXX9D9B?_encoding=UTF8&psc=1

Such as this USB A to USB C adapter
https://smile.amazon.com/dp/B072M9L...abc_R7CSYKPSQ2D7FT50WCTT?_encoding=UTF8&psc=1

I couldn't understand these built-in DAC options. So you need a purely analogue USB-C terminated headphone in order to use the DAC in the splitter? I didn't see USB-C with analogue signal in the official USB-C pinout.

 

[Technological]

I couldn't understand these built-in DAC options. So you need a purely analogue USB-C terminated headphone in order to use the DAC in the splitter? I didn't see USB-C with analogue signal in the official USB-C pinout.

It is confusing for sure.

If you look at any usb c splitter which goes to two usb c connections it is designed to meet the need to using usb c earbuds and usb c charging. Since at the beginning when phone manufacturers were getting rid of the 3.5mm jack there were some analog usb c earbuds these splitters come with built in DAC's so those will be compatible as well (rather than face mixed reviews). Therefore, yes one would need to have analog usb c earbuds to use the built in DAC. However, most modern day usb c earbuds have built in DAC's and thus there is supposed to be a built it pass through mode where usb c data is passed though directly to the DAC built into usb c earbuds rather than the DAC in the splitter. As for the pin outs, I have not seen any for these types of splitters. But analog usb c earbuds use the following usb c pins: Left Channel > D- (A7) ; Right Channel > D+ (A6) ; Ground > GND (A1).

Now the splitters which I linked have one side with female usb a. These do not have a DAC built in and the data transmitted from the phone is not tampered with. The usb c side of the splitter just provides power to the phone while data is routed through the usb a.

 

[Andykong]

It is confusing for sure.

If you look at any usb c splitter which goes to two usb c connections it is designed to meet the need to using usb c earbuds and usb c charging. Since at the beginning when phone manufacturers were getting rid of the 3.5mm jack there were some analog usb c earbuds these splitters come with built in DAC's so those will be compatible as well (rather than face mixed reviews). Therefore, yes one would need to have analog usb c earbuds to use the built in DAC. However, most modern day usb c earbuds have built in DAC's and thus there is supposed to be a built it pass through mode where usb c data is passed though directly to the DAC built into usb c earbuds rather than the DAC in the splitter. As for the pin outs, I have not seen any for these types of splitters. But analog usb c earbuds use the following usb c pins: Left Channel > D- (A7) ; Right Channel > D+ (A6) ; Ground > GND (A1).

Now the splitters which I linked have one side with female usb a. These do not have a DAC built in and the data transmitted from the phone is not tampered with. The usb c side of the splitter just provides power to the phone while data is routed through the usb a.

A6 and A7 are USB 2.0 data line in USB-C definition. So the USB-C output from these mobile devices will forfeit USB 2.0 support which is not a big deal.

On the other hand, as long as you are not using A6 and A7 (or B6 and B7) in the splitter, you have bypassed the DAC already, am I correct with this assumption?

 

[Andykong]

I'm considering buying the RU6 but since I'm new to the concept I'm currently reading the whole thread. Being just over halfway I have 2 questions that I'd like to see answered without another day of reading as I'm getting excited! I'd appreciate it if anyone could help on these questions:

1. Being permanently travelling I won't have access to a computer. Can firmware be installed using my Android phone or do I need a computer for that? In fact, can I even use it straight out of the box not having a computer for initial setup?

2. I'm using the PowerAmp app and I'm very happy with it from a usability point of view, but I do know UAPP sounds a bit better. Will the RU6 avoid the upsampling that PowerAmp uses and take the signal straight from Android? That would be a win-win for me. Or will it get the upsampled PowerAmp signal instead, rendering NOS pretty much useless?

Tnx much...

drftr

PowerAmp does not support bit-perfect USB Audio output, so all playback from PowerAmp will go through the SRC (Sample Rate Conversion) in your Android mobile phone. The output is pleasant and enjoyable, but since the RU6 has a oversampling routine to convert all PCM signal to 24Bit/384kHz, you have gone through TWO layers of oversampling if you are using OS mode of RU6 because of that.

Neutron, Uapp, Onkyo HF, Maiden audio... are some of group 1.
Jetaudio, VLC, Power amp ... and tons of app are in group2.

Idk what's "direct" in your post but seems you must change your player app to some in group1, a group that bypass Android audio stack.
For ex. if you plug a ext dac into usb port, Uapp or NeutronMp pop up to ask the right of controlling. Since then (after click Yez) you found all system audio effect such as EQ, DSP are no longer affect/altering the output audio.
Ofcouse EQ, DSP OF THE APP is available, when you need it

A very good explanation. I have nothing to add other than including HiByMusic in the group 1 list.

 

[utdeep]

Chord Mojo - by far - in my setup. Extra headroom, space, and warmth

 

[drftr]

PowerAmp does not support bit-perfect USB Audio output, so all playback from PowerAmp will go through the SRC (Sample Rate Conversion) in your Android mobile phone. The output is pleasant and enjoyable, but since the RU6 has a oversampling routine to convert all PCM signal to 24Bit/384kHz, you have gone through TWO layers of oversampling if you are using OS mode of RU6 because of that.

Yeah, I was afraid of that. Tnx for confirming though. Guess it's time to dig up my list with points why I selected PowerAmp over UAPP among others. Would be a pity as I fell in love with its setup, interface, etcetera, but such is life...

Could you please confirm whether I would ever need a computer for any firmware updates or that I'm good with just a smartphone? Tnx...

drftr

 

[drftr]

There are options without built in DAC's. It's just the form factor which most are looking for always comes with a built in DAC. It is true that some of those built in DAC's have a pass though mode but depends on the DAC chip and I just prefer to get that out of the signal chain so I suggest using a USB C splitter which splits to USB C for PD and USB A for data. This type doesn't have a DAC built in as they are intended for use with other periferals and then if you use a small USB A to USB C adapter you are good to go.

Such as thses splitters:
https://smile.amazon.com/dp/B0968Q7...abc_QVMCSSPVCTRQNFAHJC63?_encoding=UTF8&psc=1

https://smile.amazon.com/dp/B08C5FW...abc_JJ36YRMM9XB6QKXX9D9B?_encoding=UTF8&psc=1

Such as this USB A to USB C adapter
https://smile.amazon.com/dp/B072M9L...abc_R7CSYKPSQ2D7FT50WCTT?_encoding=UTF8&psc=1

Do you also have one in mind with 2 USB-C outputs instead of one being USB-A (and without DAC)? I would use it with a PD charger. I just had a look at Ugreen and DDhifi among others and then came across this Belkin splitter. It's more expensive but comes with 2 year warranty and having had some of their products in the past I have a bit more faith in them than in nameless Chifi brands to be honest. Do you think this would work:

https://www.amazon.com/Belkin-Split...&sprefix=usb-c+splitter+,aps,182&sr=8-18&th=1

Tnx...

drftr