The Matrix Matrix HPA-2 CLASSIC and HPA-3 U⁺'s new firmware are available now. The new firmware fixed the internal issue: when the HPA-2 CLASSIC or HPA-3U+ play back DSD music stream, the CS4398 DAC module outputs the opposite sound channel of the right and left. Please visit the web page of these two products, click the "Firmware Upgrade" URL to download the instruction and the latest firmware.
Matrix HPA-2 CLASSIC : http://www.matrix-digi.com/en/products/100/index.html
Matrix HPA-3 U⁺ : http://www.matrix-digi.com/en/products/78/index.html
Please feel free to contact us when you have any questions.
Matrix Electronic Technology Co., LTD
Add: 2411# Block C2, No.22 Fengcheng 2nd Rd.
Xi'an, Shaanxi, China 710016
Office Hours: 8:30 am to 5:30 pm GMT+8 (Monday-Friday)
Tech Support: firstname.lastname@example.org