Posted by JimL on October 29, 1998 at 23:41:57:

In Reply to: DSP Setting Question!! posted by Michael on October 29, 1998 at 16:59:56:

A good overview of mobile audio can be found on the rec.audio.car FAQ. Section 5, "Installation" describes how you can go about adjusting your system for a "flat" response.

Using a test CD and a sound pressure meter, I came up with the following settings for the DSP:

80	200	500	1k	2k	5k	12k
+3	-1	+1	+2	+4	+6	+7

Now, overall, I would have to say that I think the "premium" sound system sucks given its price. The imaging is terrible, the lower bass is non existant, and the DSP is little more than a gimmick. Even approaching a flat response curve is impossible. What's worse, I found that the frequency levels varied significantly from inch to inch. That is, as I moved the SPL from side to side, I found huge fluctuations in sound level for a constant frequency!

Anyhow, the settings above were the best that I could come up with. Good luck!

YMMV

: Hi,
: I just got my 1999 540iA Sport from the dealer 2 days ago!! it's great!!!
: my question and request is........
: since i have a hard time adjusting the right setting for my DSP.......can the people who has the DSP post their own favorite DSP settings????

: it would help a lot!!!

: thanks,
: Michael.