About Settings on Alpine CDA-9853

in my eclipse manual they give this equation: equation: A = (B-C)/34. Where A is the time in ms. B is the distance from the farthest speaker that is from you. C is the distance from the listening position to the speaker being adjusted.
do that for your left front speaker and your left rear speaker.

as for eq, its all up to you. just mess with it and see what sounds best.

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Thank you sir: I will give it a try...^^

What sort of speakers are you using? The stock speakers? Off of headunit power?
Are they clipping / distorted? That's the main cause of fatigue in listeners.

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Dear Sir: Actually, I can’t explain it indeed. Here is some data I had set up from i-personalize supported by the Alpine.

CDA-9853 2 WAY

# Time Correction #

[L(ms)/R(ms) ]

Front:1.7/0.7

Rear:0.3/0

SW:0/0

# Crossover # (I never get through with this.... such a hard...)

[Frequency(Hz)/Slope(dB/oct)/Level(dB)]

Front:31.5/OFF/0

Rear:31.5/OFF/0

SW:20.0/OFF/0

# Parametric-EQ # (Hopefully I set those frequencies right, and that’s the most frequently used on the HU settings, aren’t they.)

[Frequency(Hz)/Level(dB)/Width(Q)]

Band1:63.0/+3/1.5

Band2:400.0/+2/1.5

Band3:1.0k/+1/1.5

Band4:2.5k/-3/1.5

Band5:6.3k/-4/1.5

This is my system in the following:

Head unit is Alpine CDA-9853

Front speakers is Alpine SPS-170A 6-1/2" 2-Way 200W Car Speakers

Rear speakers is Alpine SPS-690A 6"x9" 3-Way 250W Car Speakers

Ps. I keep the pair speakers from Nissan factory, high range, under my front windshield. Also, I didn’t install any subwoofers and amplifiers on my car.

best regards,

Derek Ho