My Mechanic's Car Audio
1st January 2004 - report written and upload
True event circle around middle 2002
Ah Leong also have all the necessary active filters to my minimum requirement for a proper loudspeaker system setup. The external active filter (electronic crossover) is further mixed with the built-in amplifier's active filter to create a band-pass filter for the mid. What a lucky bastard :)
My god! look at how clean is the response now. The woofer is literally void of all its fluctuation and purely concentrated on lows only. Good! However the peaky nature of the woofer will make it a too fearsome monster :(
Then the mid. It is high-passed at 100Hz using 24dB/oct then amplifier's built-in low-pass at 600Hz using 12dB/oct. The cone breakup is successfully suppressed. However cone breakup are monstrous and in reality may not be so easily tamed.
Finally the tweeter high-pass at 950Hz using 12dB/oct.
An individual comparison of before and after will be shown page by page.
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