Report NVX JAD 1200.1 + DD1 does not work in Sonic Electronix - Great Selection Great Prices Posted September 9, 2016 So to open the topic back up. Talked to sonic and they didn't want to give me a free return label. Untill I told them it was confirmed by nvx and Tony himself that it does not work with the dd1. After that I said I also gave email stating this from nvx and this topic showing there's no way to truly confirm sonics dyno test and asked if they wanted to see it. Got a very Stern no thanks. Doubt they want anyone to know lol. Also the girl said sonic is nvx. Is this true?