Print Page | Close Window

need some basic tuning .

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114442
Printed Date: May 18, 2025 at 4:58 AM


Topic: need some basic tuning .

Posted By: austnjpr
Subject: need some basic tuning .
Date Posted: June 14, 2009 at 7:28 AM

This system is in a boat and consists of the following:

Kicker KMT6 Long Range Speaker System
LINK

These are listed as a Frequency Response Range of 50-21k.
They are powered by a Kicker ZX 200.2 AMP.

There are also 4 Kicker KM-620 Coaxial Drivers inside the boat.
These are listed as a Frequency Response Range of 35-21k.
They are powered by a Kicker ZX 200.4 AMP.

There are the 2 Kicker 10L5 subs being powered by a Kicker ZX-750.1
These are dual 2 ohm subs wired as a 2 ohm load to the AMP.

There is a Sony Head Unit feeding a Kicker KQ5 EQ with
5 frequency ranges:
Bass      40Hz-90Hz
Midbass             125Hz-250Hz
Lower Midrange             300Hz-750Hz
Upper Midrange             1kHz-4kHz
Treble      6kHz-20kHz
Cut/Boost             ±12dB
Input Sensitivity      950mV-9.6V
Output Level             7.0Vrms

The question is now that I have everything powered up and playing how do I begin to set everything?

Should AMP 1 and AMP 2 be set to HI-PASS or FULL RANGE?

Also what are some good basic starting points for setting the EQ?

The instructions for setting the gains on the EQ are bit confusing but I think I have that part done correctly. Getting the correct frequencies to the speakers seems a bit tougher. Any help or direction would be greatly appreciated.

Thanks.



Replies:

Posted By: i am an idiot
Date Posted: June 14, 2009 at 7:56 AM
Amps 1 and 2 to High Pass with the crossover frequency set to 100Hz on amp 1   and 80Hz on amp 2.  Bass amp set to around 100Hz also.  These should be good starting points.  With all 3 amps playing, figure out how loud you will be playing it.  Remove the RCAs from the bass amp and the 4 channel, turn the volume to the level you determined earlier.  Listen carefully for the 2 speakers that are playing, if they seem to be bottoming out, raise the crossover frequency until you are comfortable with the sound of the speakers.  Disconnect RCA on that amp and connect 2 channels of the 4 channel,  return to the level, and listen to that pair of speakers.  Then Remove those RCA cables and insert the other 2 channels of that amp.  Listen to those speakers.  Adjust crossover point accordingly.





Print Page | Close Window