Reamping with the Helix in Helix Posted December 3, 2018 I have never used ASIO4ALL on Windows until I started to use Helix LT as audio interface. ASIO4ALL is not even compatible with Pro Tools which I use often (but this is due to awkward ASIO implementation in PT). Albeit you have a choice: On Windows - either use supplied ASIO driver with 15ms RTL or ASIO4ALL with 5ms. On OSX - either use multi sampling rate OSX Core driver with 15ms RTL or 48kHz "Class Compliant" with 7ms. It is woth the new fresh thread to adress.