Unless someone had the exact same speakers as you, then there'* not much to be had by comparing.. Level adjustments are all about getting everything to work in different accoustic environments in cars.
I had my 9856 setup with a little forward Bias to strengthen the soundstage, had my gain setup properly on my sub, so I could use the internal controls of the alpine to adjust bass between tracks.
My unit doesn't have time adjustment, so I never got into that.
I try to keep processing down to a minimum, there are so many things available in modern HU that adjust the sound and after a while you have to tweak them all so little to work with eachtother it'* nuts IMO..
'06 Vee Dub GTI 2 door Tornado Red
- 2.0 Turbocharged, Intercooled, Direct Injected, 6 Speed DSG, Underbody Aero, 17" Classix
- Moonroof, Bi-Xenon headlamps, Interlagos Plaid Sport Seats, 6 Disc In-dash, iPod integration, GTI Monster Mats (winter)
'93 Bonneville SE Purple Pearl H4U package - picked up June 23, 2003, Traded-in June 28, 2007...