Adam Franke Posted November 30, 2004 Report Share Posted November 30, 2004 So here's the setup:1 Alpine MRD-M301:Wired for 2 ohms (350Wx1 at 14.4V, 250Wx1 at 12V)Response: 20Hz to 200HzSNR: 60 dBAInput Sensitivity: .125V to 8VInput Impedance 10k ohms<Speaker Impedance 4 or 2 ohmsLPF: 30Hz to 200Hz (1/6 oct. step)Parametric EQ: F: 30Hz to 160Hz, 1/12 oct. step Width (Q): 0.5/1/2/3/4/5 L: +- 12dB, 1dB stepTime Correction: 0-10mSec, .5mSec stepPhase: 0°/180°1 Alpine SWR-1241D in sealed box:12"Dual 4 ohm voice coils300W(1000W peak)Response: Fs~1kHzSensitivity: 87dBNow, I have a tuning giude for the amp, but it doesn't reccomend anything, only tells you how to set it up. I'm loking for advice for the best settings for the following:Low Pas Filter (Crossover)Subsonic FilterParametric EQBass CompensationTime Correction (it's int he trunk)And PhaseAny help is greatly appreciated. Link to comment Share on other sites More sharing options...
Bing_0 Posted November 30, 2004 Report Share Posted November 30, 2004 first thing i have to say is that the best way to tune is with your own ears, play with the settings and sit and listen and tune againbut here are the settings i would start with:Low Pas Filter (Crossover) 60-80hzSubsonic Filter offParametric EQ nothingBass Compensation nothing Time Correction (it's int he trunk) nothingAnd Phase 0 degreesin my opinion, the only thing you really need to set, giving that its a well installed set up wtih good components, is the gain and the low pass filter, all the other fancy stuff in the end just makes things sound better at a certain volume, and worse at other volumes hehe but hey, its your car, your ears, make your own judgement.. :) Link to comment Share on other sites More sharing options...
BenW Posted November 30, 2004 Report Share Posted November 30, 2004 Danger Will Robinson!!! Danger.Oh nevermind. Link to comment Share on other sites More sharing options...
wattsat Posted November 30, 2004 Report Share Posted November 30, 2004 I concur with Bing.All that fancy crap is marketing fluff to try to make their product stand out from the others.The digital processing, time alignment crap is best left OFF until you have hours and hours of time to sit and listen to the same thing over and over and over again to determine when it sounds best and at what setting. Then put in a different CD and repeat all the same steps again.The hard part about tuning a car stereo is that it never sound great for all music. The best you can hope for is that is sounds good for the type of music you listen to most. Link to comment Share on other sites More sharing options...
Boomin850 Posted November 30, 2004 Report Share Posted November 30, 2004 Agreed...tune with your ears to the type of music you listen to most. It will never perfect for all types of music. Link to comment Share on other sites More sharing options...
Bing_0 Posted December 1, 2004 Report Share Posted December 1, 2004 well, tuning your car to sound good with all kinds of music (with the help of a basscontrol knob) in my opinion IS possible, but it requires ALOT of dedication. I have persaonlly heard two cars that i thought played through my entire sample of critical listening cds (12 of htem in all, about 30 different types of songs from rap to classica etc), excellently. Mark Liggett's nissan pickup (iasca expert class world champion) is one of them. and i can tell you this, his install is really insane (motorization everywhere, even speaker grilles etc), and probably close to 1000 total hours if you added it all together, but you know hwat, he probably spent 5 times that amount of time after it was isntalled to tune it to where it was good enough to sound like htat b Link to comment Share on other sites More sharing options...
wattsat Posted December 1, 2004 Report Share Posted December 1, 2004 Bing, That is exaclty what I meant. You can tune a car to sound great with every type of music, but is not practicle or possible for the average person. It is really for the dedicated competition person.I think I originally had that in my post but removed it before submitting. Link to comment Share on other sites More sharing options...
Adam Franke Posted December 4, 2004 Author Report Share Posted December 4, 2004 OK, so I was just messing around with it for a bit. I set the LPF to 80hz, it was at 200Hz for some reason. Which is better for loudness, 80 or 60? Also, two new questions. Another option for the LPF is the slope. Do I want 12dB or 24dB? And one last question: Gain....0dB, +6dB, or +9dB? Link to comment Share on other sites More sharing options...
Bing_0 Posted December 4, 2004 Report Share Posted December 4, 2004 depending on the rest of your system, different settings sound better in different cars and different set ups...but, if i were to just guess for your case:80hz24 db octavethe gain you see i dont thin kis the gain, but is the bass boost control, in whcih case i would leave it at 0gain should be labeled like .03V on one end and 4V on the other, numbers varie but thats the gain of the amp...b Link to comment Share on other sites More sharing options...
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