Do Cheap Ported Subs Have High Pass Filters?
The setup I'm currently working on is somewhat unique in that I live in an apartment, but I have a general idea of how low frequency sound travels and how to tune things to avoid pissing people off. I'll be running everything from a htpc/gaming pc and should have access to some decent software for eq/filtering. With that In mind I figure the best route is a near field subwoofer setup, with an additional low pass filter applied in software, to really focus the energy into nailing flat to ~25 hz while keeping the volume low. I can then use some bass shakers for tactile feel.
This is by no means going to be a "reference level" setup, I'll probably have to apply some compression in software as well to ensure lower db details aren't lost in games/movies. Considering that I want to hear the bass frequencies from the sub, not so much feel them, any basic 10-12" cheap sub should have enough driver excursion to make 25hz audible at well below reference spl. The only problem is that most cheap subs are ported, and port tuned well above 25hz, so as to avoid blowing them up at levels that most people buying cheap subs are accustomed to.
In a well designed ported sub, there is generally a high pass filter involved to avoid over excursion below the port tuning point, can anyone name a few cheap sub brands that don't bother with the high pass filter? There is little point in eq to flatten out the range if a built in filter is going to thwart my efforts. I can block the port easily enough, but I imagine removing a hpf may be a little more involved...
Last edited by AVMB; Yesterday at 04:53 PM.