A bit more bass and a touch deeper stage, the Deltas actually has the better balance and the treble has better presence and sparkle on the deltas.These guys payed attention to what they are doing on the Deltas. They deliberately did the best they can for the given materials and then tuned them with a more neutral slant. Aluminum housings are not too common on budget phones at all.Sound is very well represented across the board and while the bass end is not over done it hits all the right notes and sub bass is clean. Sure it could use a touch more extension on both ends and perhaps some more texture to the overall sound but I ain't gonna complain with what they did with these at all. I would definitely put the Deltas around the VSD1 level and will be debatable which one is actually better. Lol I think the Deltas while not as good looking as the VSD1 actually has the better build..I can tell this phone can take some abuse. I am certain the folks at Brainwavz heard loud and clear the complaints of poor build quality in the past. There is nothing cheap about the Delta except for the cost..These sound better to me than the M5 I got for free with my X3 and those are worth $50. Guys that want maximum sound for the cash..The Deltas sound nothing like budget fi. Not even remotely close.
The sound isn't exaggerated or colored much just clean balanced satisfying sound. These would make perfect workout/ throw around phones or great backups. They give a good little variety of tips silicones and a pair of complys but I would try out other tips to get the best performance out of these. Brainwavz did an outstanding job. The colors, meh but who cares whey they sound this good. I only wish more vendors would up their game like these guys have. And no crazy amounts of burn in needed.