I was helping my brother in law calibrate his buttkicker bka 300 kit at his house. He didn't have an xbox 360 so I tried using his computer.
the first thing i did was:
i installed ac3 filter - download here --> http://ifile.it/2b9oa83
i also used this 20hz file - download here --> http://ifile.it/4tpls9o/20hz.mp3
and to play the 20 hz file use media player classic - download here --> http://ifile.it/ndb4cptthe settings below are for movie playback:
after changing the settings below, save both main preset and matrix preset as "buttkicker"...in this version of ac3filter you will have to load both presets before and after calibration
check that your master volume control levels are set to max
run ac3filter, load standard preset in the main tab, set gain to zero. Save preset as "buttkicker". Click Apply
click on the mixer tab, enter values for the mixing matrix section in pic below and uncheck auto gain control, uncheck auto matrix and uncheck bass redirection. Save matrix preset as "buttkicker". Click applyThe settings below are for calibrating the buttkicker:
after changing the settings (in the pic below) in ac3filter, save both main preset and matrix preset as "calibrate" for faster access for future calibration
1.) run ac3filter, set the gain to 8 in the ac3filter main properties. Save preset as "calibrate". Click Apply:
2.) click on the mixer tab and make sure the mixing matrix values are set like the pic below. also make sure auto gain, auto matrix, and bass redirection are all unchecked like pic below. You can save the matrix preset as "calibrate". Click Apply:
3.) lay buttkicker next to you, upside down (on couch or bed). set your receiver to stereo and front speakers to small to hear the low frequency from the laptop's audio out.
4.) play 20 hz mp3 file with media player classic, check that volume of media player is set to max
5.) increase or decrease the level of the buttkicker and set it's level right before the distinct metal on metal clicking sound. So once you hear the metal on metal clicking of the buttkicker drop one level below that sound.
6.) open ac3 filter and return the gain to zero in the main properties (or if you saved your preset, click the drop down dialog box under 'preset', choose "buttkicker" and click LOAD). also check the mixer by clicking the mixer tab and check that all mixing matrix values are set and auto gain, auto matrix, and bass redirection are unchecked. Click Apply.
7.) buttkicker is now calibrated and will never bottom out and now have a solid, full vibration. I recommend keeping the buttkicker upside down. I keep the buttkicker advance attached to the couch mount and slide the mount (upside down) under my matress or couch cushion if i cant permanently mount it.