my first head unit was a sony mobile es head unit back about 5-6 years ago. this is when the c-90 was made also. the c 90 was no joke for real. but my ehad unit was awesome in my opinion. i think it was like the cdx-8050 something. anyway it was like 2nd to the c90. top notch mobile es. it had hxdsp, time a lignment, 3 sets of 4 volt preouts. non fading sub out, digital 7 position eq, dsp processor, i mean it had a **** load of features, i didnt even use em all. it had level controls for the front, rear, and the sub out, not just the sub out. there was only one thing that i hated about that thing and that was that the **** little tick marks they use for volume indication. i wish they used numbers. they had 10 tick marks and eveytime u turned the dial two clicks it would be 1 tick mark. but i only usually turned it up halfway and it would sound excellent. t he sq was excellent from it too. i never ran the internal amp, i never have ran an interrnal amp out of any head unit of mine. i always use clean amps to power my speakers. so i cant really say much abou thta. i loved it. it skipped soemtimes but only because my car rode lik hell and it shook the **** out of it. it wasnt mounted tight like i wanted it either. if anyone knows which head im talking about i tell you i loved it. it was one of the better sony's. some of my friends got teh other sony's and honestly i think they ****** ass. but they were lik entry level ones. though. they skippped all the time and the sq wasnt that great. but i thought i had a purty good one. now i got an alpine hehee! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif