There is an option in an Integrated Amp to install a USB DAC. Here’s an example of one such amp:
![](https://audiosector.com/wp-content/uploads/2019/01/usb-dac-1.jpg)
I couldn’t fit the DAC transformer inside, so additional turns (20 and 27) have been added on Plitron toroid.
![](https://audiosector.com/wp-content/uploads/2019/01/usb-dac-2.jpg)
The NOS DAC board has been separated and main filtering section slightly modified. I mounted them on one of the side panels.
![](https://audiosector.com/wp-content/uploads/2019/01/usb-dac-3.jpg)
![](https://audiosector.com/wp-content/uploads/2019/01/usb-dac-4.jpg)
![](https://audiosector.com/wp-content/uploads/2019/01/usb-dac-5.jpg)
![](https://audiosector.com/wp-content/uploads/2019/01/usb-dac-6.jpg)