Khadas Tone Board

Diy? Low-budget? Esoterics? Let's discuss about DACS!

Ads helps Volumio remain Free and Open Source. Please consider donating to help us continue to serve you.

Khadas Tone Board

Postby gkkpch » Wed Feb 20 2019 21:40

@angelo.b is right, you cannot because the RPi 40 pin connector is not compatible with the Khadas Toneboard.
Khadas has usb pins exposed on the 40-pin connector for the VIM/VIM2 boards.
RPi does not have those...
Volumio OS Developer

You like my work? Then what about buying me a beer :)
User avatar
gkkpch
Moderator
 
Posts: 1563
Joined: Mon Dec 29 2014 22:38
Location: Bodensee, Switzerland

Ads helps Volumio remain Free and Open Source. Please consider donating to help us continue to serve you.


Khadas Tone Board

Postby aconst » Thu Feb 21 2019 14:49

gkkpch wrote:... because the RPi 40 pin connector is not compatible...


Would it work if we only connect the applicable pins with single 1-to-1 cables (i.e. make an adapter)?

My point: a lot of reviews see the Khadas Tone Board in the same quality range with the Katana. So why not using the Khadas Tone Board as a HAT instead of the Katana?
- it has a pin connector able to manage I2S signals since it already works with another SBCs
- it needs 5V which can be provided by the RPi
- the RPi board is able to send the I2S signals over its own pin connectors.
- is costs only 100 EUR having almost the same THD and the same DAC chip. This is a very interesting aspect, especially for Volumio users not being able to hear the acoustic differences of the technically much more advanced Katana. Not everybody can notice the differences between a good red wine bottle for 25 EUR and the one for 100 EUR.

Regards,
Adrian
Random avatar
aconst
Serious Listener
Serious Listener
 
Posts: 59
Joined: Fri Jul 28 2017 07:33


Khadas Tone Board

Postby angelo.b » Thu Feb 21 2019 19:04

I have not received the card yet. but I think it can be done. But it does not make sense because it does not improve the quality of the sound.
Random avatar
angelo.b
Serious Listener
Serious Listener
 
Posts: 80
Joined: Fri Dec 15 2017 14:39


Khadas Tone Board

Postby aconst » Thu Feb 21 2019 21:05

You are right, it does not improve the quality, but you get a single box, single power supply solution.
With 200€ you get a very good player.

I really don't believe in the multi PSU devices: single in - single out

I am very curious how does it the differences between Allo Boss and the Tone Board are so clear. If you have detected differences please give us details regarding the rest of the audio stack (amp and loudspeakers).

Since the Khadas Tone Board costs almost as much as the Piano 2.1 + Kali, has anybody made any comparison?

Regards
Adrian
Random avatar
aconst
Serious Listener
Serious Listener
 
Posts: 59
Joined: Fri Jul 28 2017 07:33


Khadas Tone Board

Postby dominique-tanguy » Sun Feb 24 2019 20:27

It might be a stupide comment, but is it not easier to install Volumio on a VIM2, and use the excellent Khadas with the VIM?

Dominique
User avatar
dominique-tanguy
Serious Listener
Serious Listener
 
Posts: 81
Joined: Fri Jun 30 2017 17:28


Khadas Tone Board

Postby gkkpch » Sun Feb 24 2019 22:56

aconst wrote:
gkkpch wrote:... because the RPi 40 pin connector is not compatible...


Would it work if we only connect the applicable pins with single 1-to-1 cables (i.e. make an adapter)?

My point: a lot of reviews see the Khadas Tone Board in the same quality range with the Katana. So why not using the Khadas Tone Board as a HAT instead of the Katana?
- it has a pin connector able to manage I2S signals since it already works with another SBCs
- it needs 5V which can be provided by the RPi
- the RPi board is able to send the I2S signals over its own pin connectors.
- is costs only 100 EUR having almost the same THD and the same DAC chip. This is a very interesting aspect, especially for Volumio users not being able to hear the acoustic differences of the technically much more advanced Katana. Not everybody can notice the differences between a good red wine bottle for 25 EUR and the one for 100 EUR.

Regards,
Adrian


Well the TB is not an I2S DAC, it is USB only!
This means you need to get 5VCC, GND, DATA + and DATA - from somewhere and afaik you won't find that on the 40-pin RPi connector.
Volumio OS Developer

You like my work? Then what about buying me a beer :)
User avatar
gkkpch
Moderator
 
Posts: 1563
Joined: Mon Dec 29 2014 22:38
Location: Bodensee, Switzerland


Khadas Tone Board

Postby gkkpch » Sun Feb 24 2019 23:02

dominique-tanguy wrote:It might be a stupide comment, but is it not easier to install Volumio on a VIM2, and use the excellent Khadas with the VIM?

Dominique

Theoretically yes (and I don't mean the "stupid comment" bit :mrgreen: ), but Khadas VIM and Khadas TB do not work well with the current Volumio for VIM images.
This is a kernel issue with USB and has been reported, but balbes150 has not been able to follow it up so far.
Volumio OS Developer

You like my work? Then what about buying me a beer :)
User avatar
gkkpch
Moderator
 
Posts: 1563
Joined: Mon Dec 29 2014 22:38
Location: Bodensee, Switzerland


Khadas Tone Board

Postby M_Furtwangler » Mon Feb 25 2019 19:10

gkkpch wrote:
aconst wrote:
gkkpch wrote:... because the RPi 40 pin connector is not compatible...


Would it work if we only connect the applicable pins with single 1-to-1 cables (i.e. make an adapter)?

My point: a lot of reviews see the Khadas Tone Board in the same quality range with the Katana. So why not using the Khadas Tone Board as a HAT instead of the Katana?
- it has a pin connector able to manage I2S signals since it already works with another SBCs
- it needs 5V which can be provided by the RPi
- the RPi board is able to send the I2S signals over its own pin connectors.
- is costs only 100 EUR having almost the same THD and the same DAC chip. This is a very interesting aspect, especially for Volumio users not being able to hear the acoustic differences of the technically much more advanced Katana. Not everybody can notice the differences between a good red wine bottle for 25 EUR and the one for 100 EUR.

Regards,
Adrian


Well the TB is not an I2S DAC, it is USB only!
This means you need to get 5VCC, GND, DATA + and DATA - from somewhere and afaik you won't find that on the 40-pin RPi connector.


Hello, I'm also wondering if it possible to connect TB to Rasp Pi via I2S
And I found that the TB isn't a USB only DAC.
It can support I2S input as this
https://forum.khadas.com/t/i2s-input-options/2948
Random avatar
M_Furtwangler
Fresh off the boat
Fresh off the boat
 
Posts: 1
Joined: Mon Feb 25 2019 19:03


Khadas Tone Board

Postby gkkpch » Mon Feb 25 2019 23:05

M_Furtwangler wrote:
gkkpch wrote:
Well the TB is not an I2S DAC, it is USB only!
This means you need to get 5VCC, GND, DATA + and DATA - from somewhere and afaik you won't find that on the 40-pin RPi connector.


Hello, I'm also wondering if it possible to connect TB to Rasp Pi via I2S
And I found that the TB isn't a USB only DAC.
It can support I2S input as this
https://forum.khadas.com/t/i2s-input-options/2948


Yes you are correct, it should be possible with an adapter inbetween
Volumio OS Developer

You like my work? Then what about buying me a beer :)
User avatar
gkkpch
Moderator
 
Posts: 1563
Joined: Mon Dec 29 2014 22:38
Location: Bodensee, Switzerland


Khadas Tone Board

Postby angelo.b » Fri Mar 01 2019 20:55

arrived the card sounds good only on 192k at most.I do not do resempling plays dsd with distortion.
help
Random avatar
angelo.b
Serious Listener
Serious Listener
 
Posts: 80
Joined: Fri Dec 15 2017 14:39

PreviousNext

Return to DACs

Who is online

Users browsing this forum: No registered users and 0 guests