For the time correction numbers I measured the distances between each speaker and my head when in driving position. I took those numbers and went to the Alpine website and used a tool in the i-Personalise section that calculates the delay required for each speaker in tenths of milliseconds. I then entered those numbers into the deck and enjoyed the noticeably better sound. The left speaker feels further away than it is, and the others are balanced as well. I left the post it note with the numbers in the car, I'll post them soon.