Hi guys.
Right now we have a list of features.
We have 1 week rest now because of holidays but we are really close. We need to test the channel switching. that's all.
I have attached drafts for the userguide
The motor driver is a sparkfun serial motor driver for controlling a ALPS potmeter with motor.
MCP23009 is an I2C bus expander that giver you volume control from 57 to 255 on a 8 bit bus. => 0 - 99 on the display.
In the AK4490 it is equal to 1dB step from 0 to -99dB
Remote pairing is in place.
Display is showing volume when using encoder or remote for 15 seconds after release going back to Channel display. Which again dims to low level after 15 seconds. The PCA9955B is really good at controlling the LED's in the 7 segment displays.
1 dot is lighting up when remote is used.
BR
Sonny
Right now we have a list of features.
We have 1 week rest now because of holidays but we are really close. We need to test the channel switching. that's all.
I have attached drafts for the userguide
The motor driver is a sparkfun serial motor driver for controlling a ALPS potmeter with motor.
MCP23009 is an I2C bus expander that giver you volume control from 57 to 255 on a 8 bit bus. => 0 - 99 on the display.
In the AK4490 it is equal to 1dB step from 0 to -99dB
Remote pairing is in place.
Display is showing volume when using encoder or remote for 15 seconds after release going back to Channel display. Which again dims to low level after 15 seconds. The PCA9955B is really good at controlling the LED's in the 7 segment displays.
1 dot is lighting up when remote is used.
BR
Sonny
Is it possible to use just the Dac board (without frontpanel and voulme control).
What setting is active then?
(As I have a cabbinet that only fits the Dacboard)
What setting is active then?
(As I have a cabbinet that only fits the Dacboard)
How much space do you have ryssen. ? I Can do A modified board.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
The thing is I have a frontpanel that is made of 20mm oak so It´s not so easy to make a hole there at least not with my hand tools.
I could mount it on the top there it is 2mm aluminium.
But the voulume control I dont need beacuse this Dac will be a part of an active setup with 3 dacs.
If I don´t use the volume control is the volume set to max then?
I could mount it on the top there it is 2mm aluminium.
But the voulume control I dont need beacuse this Dac will be a part of an active setup with 3 dacs.
If I don´t use the volume control is the volume set to max then?
I Will make a version where you can control the setting through an RS232 port. The same used for boot loader firmware upgrade
Sonny, I have a dac itch that needs scratching. How much would you best xlr output version with screen cost?
Bought the 2025 output stage for the AK4490 DAC. Really looking forward to install this new gem from Sonny!
I already have the discrete output stage which was a nice upgrade from the opamp output but after reading some comments of people using it, I just couldn't resist it!
Ciao!
Do
I already have the discrete output stage which was a nice upgrade from the opamp output but after reading some comments of people using it, I just couldn't resist it!
Ciao!
Do
Simple Frontpanel
Hi
I hvad tested the simple front panel and Sonny have added some ekstra functions.
Switching between the different i2s codecs.
We can also adjust the speed for a alps motorpot.
It alls works through the apple remote, and it's really well done.
So thanks for your works so far 🙂
Hopefully All you that have ordered the new Dac well be as pleased as I am. Looking forward to hear your comments when you receive and get the possibility to try it.
Cheers
Aboe
Hi
I hvad tested the simple front panel and Sonny have added some ekstra functions.
Switching between the different i2s codecs.
We can also adjust the speed for a alps motorpot.
It alls works through the apple remote, and it's really well done.
So thanks for your works so far 🙂
Hopefully All you that have ordered the new Dac well be as pleased as I am. Looking forward to hear your comments when you receive and get the possibility to try it.
Cheers
Aboe
Thanks for the update.
Just a quick question. Do the alps pot does analog volume control? Where does alps pot sit in the chain? After the output stage?
Does the front panel offer digital volume control too? Can you or sonny elaborate on this?
Alps
Yes, the alps is for the analog volumecontrol and is placed between the output stage and the amplifier.
The front panel also offer a digital volume control, and to be honest - it's really hard to hear the difference, but I prefer the alps...... maybe because I already had bought it ;-)
Cheers
Anders
Yes, the alps is for the analog volumecontrol and is placed between the output stage and the amplifier.
The front panel also offer a digital volume control, and to be honest - it's really hard to hear the difference, but I prefer the alps...... maybe because I already had bought it ;-)
Cheers
Anders
They are ready to ship out:
And by the way we are going to make an output shield with 2 x60watt into 4 ohms load when running at 24vdc. It is based on tpa3244
Together with the dac it is possible to make a compact digital only integrated amplifier for 528€ excluding chassis and power supply.
With powersupply and chassis it will be possible to make a amplifier for less 800€ which will real high end sound.
Br
Sonny
And by the way we are going to make an output shield with 2 x60watt into 4 ohms load when running at 24vdc. It is based on tpa3244
Together with the dac it is possible to make a compact digital only integrated amplifier for 528€ excluding chassis and power supply.
With powersupply and chassis it will be possible to make a amplifier for less 800€ which will real high end sound.
Br
Sonny
5 first packages is ready to ship out now. They where finally tested today.
+ 4 output shields
+ 4 output shields
