Note: This article has been updated with lastest available information on March 10th, 2022 at 09:42 pm
API. Audio Stream Input/Output (ASIO) is a computer sound card driver protocol for digital audio specified by Steinberg, providing a low-latency and high fidelity interface between a software application and a computer’s sound card.
You can download the Spark Windows ASIO Driver file on Positive Grid ASIO page
If you need to update the firmware of your Spark amp, you can find the the complete procedure here