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Here is my setup:

Soundstream D'artagnan 5.1 (4x65@4ohm, 1x400@2ohm)
1 Infinity Kappa Perfect 12.1D (@2ohm)
Mb Quart RSC216 Components
Mb Quart DTC169 6x9s

My amp has two settings for bass adjustment. Hawkins Bass Control and Sub-sonic. From reading the documentation, both these setting act as a high-pass XO for the subwoofer channel. The subsonic filter can be adjusted to kick in anywhere 13-30Hz and the Hawkins Bass Control can be adjusted to kick in anywhere between 30-70Hz. Also the Hawkins Bass Control allows for dB adjustement from the starting point of high-pass XO. I have my low-pass on the sub channel set to 100Hz.

My questions are:

Is the dB gain on the Hawkins made to make up for the natural loss of dB of the sub at low frequencies since it is a scaled dB gain rather than a constant dB gain (as frequency gets higher, it lessens)?

Am I really going to miss much music (techno and classical) if it filters out everything lower than 30Hz?

What is the proper way to tune this subwoofer setup?

Any other suggestions?



Thanks in advance.