No. I'm not your Mum.
I try to advise. Because I see potential business implications.
Yep. Based on your performance. And my experience in marketing.
You'll grow with the challenge. Trust me.
Enjoy the weekend.
Soundscheck , I don't appreciate the way you "help" or talk. From now on I am kindly asking you , keep your advise to yourself.
thanks cds.. hope you nail the the preventive measures for this..
if u can.. please share the investigation so we know what caused it.. i dont have the instrument and time to troubleshoot..
Looks very nice. A couple of questions if you don't mind. Does the wi-fi work okay inside the metal enclosure? Did you try adding 100uf of film caps to each of the +-15v rails and find no audible benefit, so you left them out?
In this project, I did not add film capacitors. I agree with you that in the power supply is heard the influence of almost any component.
Hi bvlabs, that looks good! I am interested: how exactly did you attach the external antenna to the Pi? Do you have a picture?
You can see here:
Raspberry Pi 3 with external antenna – Mictronics
Raspberry Pi 3 with external antenna – Mictronics
Attachments
Hi, I like your box. I think you should use LAN connect to a wifi router for your remote purpose. And use 3 linear psu for Raspi 5V, 3.3V and 1.8V. I use Mezzanine board for this. And you could try Salas Ultra BiB 1.3 for output board like me. There are tips to improve sound quality I learned on this 4rum.
Hi marudo, you are not lucky because a lot issue. Now I fix all the errors and no more reassembly Katana and Pi. I think Katana and Allo team should take times to make a higher level of DAC. Too many error for a new product.
Hi marudo, you are not lucky because a lot issue. Now I fix all the errors and no more reassembly Katana and Pi. I think Katana and Allo team should take times to make a higher level of DAC. Too many error for a new product.
Last edited:
I finally have my 4 Linear (3 physical units, one has two halves) hooked up to the Allo Katana DAC with Isolator board.
I could not get the player to work at first. I kept getting ALSA and MPD errors. I flashed a the SD card with a fresh install of Moode 4.4 and still I had the same issues.
This is what I had to do. I have a DIY board based on the LT 3042 Voltage Regulators. This is powered by a 6 volt dual winding toroidal Transformer. This board has dual halves so you can use it for the low amps boards. I am using it for the Katana DAC and the MC board.
I had to power up the board is this order to get the unit to work.
1.) Katana Dac Board
2.) SQ output board
3.) MC Board
4:.) RPI Board
I have wires soldered to the MC board underneath and I also have wires soldered underneath the RPI board. I am NOT using any of the USB inputs.
I did wait like from 15-30 seconds between powering up the boards.
The unit is playing into my powered speakers and later tonight I will hook it into my tube amp.
More to come.
I could not get the player to work at first. I kept getting ALSA and MPD errors. I flashed a the SD card with a fresh install of Moode 4.4 and still I had the same issues.
This is what I had to do. I have a DIY board based on the LT 3042 Voltage Regulators. This is powered by a 6 volt dual winding toroidal Transformer. This board has dual halves so you can use it for the low amps boards. I am using it for the Katana DAC and the MC board.
I had to power up the board is this order to get the unit to work.
1.) Katana Dac Board
2.) SQ output board
3.) MC Board
4:.) RPI Board
I have wires soldered to the MC board underneath and I also have wires soldered underneath the RPI board. I am NOT using any of the USB inputs.
I did wait like from 15-30 seconds between powering up the boards.
The unit is playing into my powered speakers and later tonight I will hook it into my tube amp.
More to come.
BVlabs, thank you for the link and excellent pics for adding external antenna to RPi. I get frequent WiFi dropouts even without a case, and I am going to try this solution.
Please note: 4 supplies - he has a separate +/-15 VDC power supply powering the Sound Quality OpAmp board.
So, no - the micro controller load is no where near 1A on the LT3042.
Jrocker,
You are correct. I have a military Linear regulated +/1 15 Volt PSU powering the SQ board. Tonight I listened for the second time and I am so amazed at the musicality I am having.
The Ball LF's seem to be going down 1-2 octaves. The unraveling of complace such or classic music is a joy. The resolution is better, the separation of instruments and vocals is better. The vocals are clear, I can fellow them better than ever. Across the board, the music is better and that is what matters most.
You are correct. I have a military Linear regulated +/1 15 Volt PSU powering the SQ board. Tonight I listened for the second time and I am so amazed at the musicality I am having.
The Ball LF's seem to be going down 1-2 octaves. The unraveling of complace such or classic music is a joy. The resolution is better, the separation of instruments and vocals is better. The vocals are clear, I can fellow them better than ever. Across the board, the music is better and that is what matters most.