ok, i have Pioneer DEH6050UB which came as 7950 replacement(7950 was international product, while 6050 is an Indian one. That means, with bill u can avail all the warranty and services.
)
Features are all equivalent to 7950HU model. However, there are few more wallpapers added in 6050UB, plus the latest has bigger dial and looks nice IMO!
Anyways, JBL GTO937 along with Pioneer 6050 HU would be a fantastic combo. The bass response is really overwhelming! I have Kenwood 6x9" as rears. The bass response isn't that deep as JBLs, just ok. However, the mids and highs are crystal clear and sound beautiful. See, there is more with 6050UB then meets the eye. With 24-bit DAC, 7-Band equalizer and loads of sound settings, u can adjust the o/p in accordance to ur own taste and speakers.
JBL GTO 937 isn't available in the market anymore. May be some dealers can still set you up, but in Grey only! ok, GTO947 is available in the market, which has more wattage and dome area. As for prices, it may vary from City to City. I dont know about Grey market prices. Kalpik can give u details about that!
Along with Bill 6050UB will cost you around 12K! As for JBL, go for Grey. They'll cost you around 3.3K !
And yeah, this HU support high speed USB 2.0 with 250GB capacity limit.
Good Luck..