help me merle, i need a schem. !

[casey]

i need a schem. of a crossover (as simple as can be, with very
minimum parts) to drive some subs for a live show.  150 hz ?
passive would be great!

[Transmogrifox]

Email me :  transmogrifox@yahoo.com

And I can get you a schematic for a cross-over if you still need it.

I' m assuming you have seperate amplifiers for high and low, so you aren't needing to filter a high-power signal, correct?

[casey]

you've got mail!

[Nasse]

http://www.freewebs.com/nassetronics/subw.htm

I think you need to copy the link and paste it as address

My hand-drawn quick and dirty schem of simple active 12 dB/octave filter, I copied it more or less from old Elektor Electronics mag. It might need additional parts or stages like mixing stage of L and R if you go mono and maybe gain stage after, to lift the volume up enough but depends of amplifier you use. Power supply is not shown but I used +/- 15 volts. Undefined cap in output maybe 10uF bipolar, maybe less if high impedance follows. A subsonic filter might be useful at output, but then it is not simple...

There are better designs around, but anyhow it works and crossover freq is adjustable, maybe 60...130 Hz if I remeber well, but worked just fine with my speakers.