Umm - did you mean to say "without" instead of "with"?:
I found it worthwhile and would not use a Katana without it, just as I won't use the RPi as a source for any other DAC (RPi mounted or separate) with an isolator board in place.
Some bad news. Due to delay in one components Katanas 1.2 will be delayed for about 10 days.
If any of the people that preordered had enough of all this problems , we will gladly give a refund and they can keep the old Katana
On the , only, positive side, on test units the sound quality has increased significantly .
If any of the people that preordered had enough of all this problems , we will gladly give a refund and they can keep the old Katana
On the , only, positive side, on test units the sound quality has increased significantly .
Hi,
That is great news!
Did you already sent some test units to reviewers or is it delayed too?
@cdsgames that's great news! Does that mean now budget bookshelf speakers can do justice with Katana or still main setup required?
just wondering if you have any plan to launch bundle which includes Katana DAC, new Isolater, RPI 3B+, two PSUs Nirvana and standard Allo PSU with case?
just wondering if you have any plan to launch bundle which includes Katana DAC, new Isolater, RPI 3B+, two PSUs Nirvana and standard Allo PSU with case?
In Katana technical document, I can not find power consumtion of +-15VDC for Opamp. 1Ampere should be ok?
Today, I get same problem like Mr @marudo, the Katana DAC sound smurf. I try to remove all of stacks and reassembly all of it many times. I also try to reinstall SD card with newest version of Moodeaudio 4.2, Volumio 2.452 but can not fix this issue. So,the quality of Katana or some pins contact is problem. Before that, I still using as well with Moode v4.2.
Pls help me to fix this error.
Pls help me to fix this error.
Hi Ashton,
I think Allo cannot do something about it as what cdsgames pointed. I almost soak the Pins using my CRC contact cleaner (used almost 1/3), as suggested by some folks here. Yet the issue remained!
This issue occurs whenever I stream music via UPnP server, then I use other servers, still the same issue. After trial and error, it resumes whenever I access my music using volumio. I used dietpi and volumio only for this purpose. I swapped the raspberry pi B+(China) with RPi B (UK), I encountered the same smurf. I also restored factory setting in the volumio and reimaged.
Im not sure if the salt is causing this smurf sound.
I thought this is an isolated case.
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Define what you mean by smurf? If you mean the rate of playback is faster than it should. Are you by chance starting playback, then rebooting your system, and then try to play again?
Precisely. Smurf = fastforwarded cassette sound
Done countless of reboots and different combo such as reimaging, swapping of SD card with digione device and software. Smurf sound is perrenial.
In my case, fastforwarded cassette sound and very low volume level. Even I set alsamixer = 100, volume control by software :100.
Anhton82.. that wont help.. smurf will remain.. Allo is blaming the quality of the pins of RPi.
@cdsgames
I am wondering why Allo with all their expertise is relying on something basic and non audiophile like the RPi, a device they are unable to control.
So the high quality of Katana suffers from problems caused by the RPi.
IMO, this is not the way to go.
Allo should produce their own audiophile SBC like a high end Sparky that they can use for all their devices like Katana, Digione and USBridge.
I was very interested to buy a Katana but now with these problems caused by the RPi I am very reluctant now.
Matt
I am wondering why Allo with all their expertise is relying on something basic and non audiophile like the RPi, a device they are unable to control.
So the high quality of Katana suffers from problems caused by the RPi.
IMO, this is not the way to go.
Allo should produce their own audiophile SBC like a high end Sparky that they can use for all their devices like Katana, Digione and USBridge.
I was very interested to buy a Katana but now with these problems caused by the RPi I am very reluctant now.
Matt
Hi Matt,
What attracted me to RPi audiophile is the dynamic software development and huge community support (volumio, Dietpi, Max2play).. as well as the ability to upgrade the computer easily. With the likes of microrendu or sotm that develops an in house monolithic transports, its not cost efficient and boring to have.
I want to use paper sand to clean the terminals. Im just wondering... if this is salt related issue causes resistance in Pi current flow.. Smurfing should be consistent.. and render my katana assembly unusable.. However in my case its aperiodic.. sometimes okay, and for awhile it will become smurfed
The question is, why should I buy an Allo product.
Because of the low price? No.
Because of high quality? Yes.
So I think most audiophiles buy Allo because they get a product which outperforms the competition.
Now I am heading towards something like USBridge or Ultrarendu. The price does not matter in this case, I am looking for the better product.
Matt
Because of the low price? No.
Because of high quality? Yes.
So I think most audiophiles buy Allo because they get a product which outperforms the competition.
Now I am heading towards something like USBridge or Ultrarendu. The price does not matter in this case, I am looking for the better product.
Matt
Paul,
Rebooting was quick solution. How can you explain while playing using volumio's player and suddenly shifting as UPnP renderer, smurf sound occured.. Im just changing operation via software. No rebooting involved. I think Nirvana should have an on off switch so no need to plug out the usb power chord in the input pf the stack.. assuming this issue is inhirent to katana..
Looks like someone who has the problem might need to try another RPi. If that doesn't solve the problem then try contacting Allo directly for warranty support. After all, there are only two connectors that matter, the one on the RPi, and the one Allo provides. Either an RPi problem or an Allo problem.
Other than that, someone would need to solder some tiny wire wrap wire to the I2S pins on one of the boards and watch on a scope to see what is happening with the signals. If smurf sound, that would suggest clock speed is too high, or there are a lot of noise spikes in the clock signals.
Other than that, someone would need to solder some tiny wire wrap wire to the I2S pins on one of the boards and watch on a scope to see what is happening with the signals. If smurf sound, that would suggest clock speed is too high, or there are a lot of noise spikes in the clock signals.
Maybe contact Allo, say this is what I tried, I assume the unit is still under warranty, how would you like to proceed?
Allo knows it. they are blaming pi.. let us see if this will be an issue in Katana 1.2.
Never had an issue using the Rpi B+ built Usb to DAC as well as in digione HAT.. using same RPi to katana.. i have encountered this smurf issue.