PS, Nmurro
The crossovers are in the speakers. The box outside the speaker is a high pass filter between the pre and amp that filters the bass at 6 db per octave below 100 hz. The subs then add it back. This unloads the amp of the high power needed for low frequency amplification and improves the clarity and focus of the mids. It also better integrates the subs and woofers, since the same amp signal goes to both.
The crossovers are in the speakers. The box outside the speaker is a high pass filter between the pre and amp that filters the bass at 6 db per octave below 100 hz. The subs then add it back. This unloads the amp of the high power needed for low frequency amplification and improves the clarity and focus of the mids. It also better integrates the subs and woofers, since the same amp signal goes to both.