SUBWOOFER FILTER

This is my first post on this blog. It's about an interesting project ; building an active subwoofer filter. Here are the schematic diagram :

Fig. 1. Active Subwoofer Filter

I Have simulated this circuits which have a 12 dB/octave slope, and peak Frequency at 40 Hz as describe on next Figure :

Fig. 2. 12dB/octave slope of active subwoofer filter

Below is pcb layout for this filter; but i haven't spare time to etch yet. It is really a simple design with only one double-opamp TL 072 and a few component. Still waiting a right time to complete this project.

Fig. 3. Topview PCB Layout

Fig. 4. Bottomview and mirrored PCB Layout

Hope have enough spare time soon to complete this little project.

diyer : 08/08/08