Quote Originally Posted by vuki View Post
Depending on one's listening preferences, room acoustics and system, varying (3R3 - 6R8) the value of 4R7 resistor would give wide enough range for tuning high freq. energy. There is no need to change 27R.

One cannot tune low/midrange with L-pad. It is done with series inductor value. Varying capacitor parallel to woofer would change only the upper part of woofers frequency response.
Vuki:waver:,

Can you expand on how one should go about varying the inductor value for low/midrange for the 604k? Lets's say you start with inductor value of 1.7 mH (like in JM's filter I use) for the low pass part. What happens if you increase or reduce the values?

Regards/Naimare