oppo_ha-2_1 by John H. Darko February 16, 2015, 3:29 pm Related See more Previous article OPPO HA-2 portable DAC and headphone amplifier review Written by John H. Darko John lives in the NOW + HERE = NOWHERE. He derives an income from the ad revenues of DAR. John is also an occasional staff writer for Stereophile, 6moons and TONEAudio. Twitter: DarkoAudio Instagram: DarkoAudio Facebook: DAR 2 Comments Leave a Reply How would you compare this to the Herus? Obviously, there are feature differences. However, in terms of sound quality how do they match up? Reply No idea, sorry. I didn’t compare them. Both are of a similar sonic spirit though: bold and rambunctious. Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of new posts by email.