totaldac d1 filter

"anyone ordering a DAC, streamer or driver between the 1st April 2020 and the 31st August 2020 will be able to return it and get 80 per cent of the cost back (excluding shipping costs) up to 12 months after purchase..." https://www.audiostream.com/content/totaldac-offers-80-cent-money-back

This is a review and measurement of Intona USB Isolator. In the last few years there has been a proliferation of USB filters, cleaners, regenerators, feeding on fear of audiophiles of noisy computer ports. Intona doesn't actually play in that market directly. They built this device for...