Kal Rubinson and Michael Lavorgna has posted a review of the UpTone Audio USB Regen ($175) at Stereophile. Michael Lavorgna’s conclusions:
“If you want to try only one of these USB devices, I recommend UpTone’s USB Regen as the performance choice, and AudioQuest’s JitterBug as the budget choice. If your big rig is very resolving and subtle improvements grab your attention, I recommend the Regen-JitterBug combo for a more bewitching experience.”
You can read the full review here.