Ultimate TDA1541A S1 USB DAC Updates

The last built of my TDA1541 USB DAC with GIC filter is working and sound great. This TDA1541 DAC is so simple to built and only required PCM2704 USB to I2S module board as the digital receiver.

You can check the built process here.

In this updates, I will show few upgrade. One of them is by replacing the TDA1541 with TDA1541A S1 single crown which have better specification.

I also put DC blocking capacitors at the output since I got the DC offset at the output naturally caused by the digital element matching from the TDA1541 itself.

Then, I repaint the chassis.

It look gorgeous.

The Ultimate R2R USB DAC PCM1704 With Vacuum Tubes Output (Part 4) Review

For me, this ultimate R2R USB DAC using PCM1704 and vacuum tube as the analog output is the most ambitious project that I wish to have, and I am glad that I had it right now.

Think about my previous DAC built are all using op-amps IC for the analog section. They are many variation of them and I just wondering how would the vacuum tubes sounds like when using in the analog stages of a DAC. What the difference between using all op-amps and passive IV with vacuum tubes at the analog part of a DAC?

This DAC built is the answer for all my curiosity.