Question about Car Amplifiers

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How do you set this stuff?

Im trying to set a friends car audio system so everything in it runs as best as possible. he has a memphis mcd-1000w amp with 2 kicker cvr 15" subs and a kicker 2/3 way crossover. the memphis has:

  • Built-In Fully Variable Low Pass Filter: 50 - 250 Hz
  • 18dB Per Octave Crossover Slope
  • Built In Fully Variable Sub-Sonic Filter: 20 - 50 Hz
the crossover has:

adjustable front/rear crossovers (high- and low-pass) from 35 to 400 Hz (18 dB per octave); in addition, the front channels have a 20X multiplier that switches the crossover to tweeter range (700 to 8000 Hz). The subwoofer outputs offer a low-pass crossover (variable 45-250 Hz at 18 dB per octave).

i would like to know if there is some universal setting that he can adjust them to so he can pound and not wind up setting himself on fire.

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  • 71 Answers

Need more info..
How many amps and their RMS rated power.?
If one amp, how many channels + individual power for each channel?.
Two crossovers set at the same freq.is redundant and likely to cause more problems.
Do the front speakers have their own X-over? whats the X-over point? and what is their freq. response (total) are they separates
Rear speakers same question.
I'll point out that you cant hear below 20Hz unless your a whale and very few instruments go that low except organs and synthasizers.
The subsonic filter merely block the lower harmonics from eating up amp power.
Their is no universal setting. all systems are different, as are cars, interiors, ears, windows up or down, noise floor, etc.
A RTA helps with the basics but you will still have to tune by ear,
Good sound is difficult enough to achieve,
Great sound is trial and error and very time consuming.
Sorry no simple answer here. Find a good installer ,preferably with sound judging experience,
It wont be cheap, but if you have enough money invested in the system, Don't skimp. or all you'll have is bragging rights
Best of luck, Sumthin

Posted on Jun 11, 2008

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