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Fine Tuning Your System

As was stated earlier, a vehicle is a less than perfect environment to try to reproduce music accurately.

The diagram below is what you hope to see when testing the frequency response from your system. Most systems need significant equalization or other tweaking to achieve a flat frequency response.


An important note about the Flash demos/graphics on this site... The powers that be have deemed that the Flash content on web pages is too risky to be used by the general internet user and soon, ALL of the support for it will be eliminated (most Flash access was eliminated 1-1-2021). This means that no modern browser will display any of these demos, by default. The fix for now is to download the Ruffle extension for your browser. Ruffle Web Site. Please email me (babin_perry@yahoo.com) to let me know if Ruffle is working well for you and what browser you're using.

An alternative to Ruffle is another browser, Maxthon 4.9.5.1000. For more information on the Flash problem and Maxthon (standard and portable), click HERE.


The diagram below is more likely what you would see from a system before it was fine tuned. There may be more dips and peaks and they would be at different points but this should give you an idea of what you might see.

If you have a graphic equalizer similar to the one below, you would start with all sliders at their center position where they basically have zero effect on the signal (as in the image below).

While watching the levels on the RTA, adjust the equalizer slider that corresponds to the frequencies where correction (boost or cut) is needed. If the RTA display looks like this:

You might set the sliders on your equalizer like this:

To achieve this:

It is unlikely that you would be able to get a perfectly flat response with an equalizer. It is not necessary to have a perfectly flat response to have a nice sounding system. As a matter of fact, the average person would not think a flat response sounds good.


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