Tri-Mode Amp

[jtm311]

You can generally buy the filters from car audio suppliers, the high end ones are called Bass Blockers IIRC. However, I would recommend against this setup. I'm assuming the amplifier is relatively low wattage, probably 50X4 RMS, which when spread out over 6 speakers will not be enough to make the subwoofer sound good at all. Subwoofers tend to have large magnets, even the small ones, and under powering them hardly creates any sound at all. My recommendation is purchasing a 5 channel amplifier that has crossovers built into it. Generally, using capacitors for filters isn't always the best idea because they can't handle much power. They are OK for high end, but low end needs more juice than they can handle.

If you still want to continue, I'd google building your own crossovers, you should find a calculator that will tell you what to build. I have a book somehwere that describes the process, but I couldn't begin to tell you where it is. If you sold the amp you have an invested in a 5 channel, I think you'd be much happier. After all, comparing it to the cost of the car overall, it's hardly anything.

Thanks I should have given more info,
RMS Power:

• 150 Watt x 4 Channel @ 4 Ohm
• 190 Watt x 4 Channel @ 2 Ohm
• 380 Watt x 2 Channel @ 4 Ohm Bridged

1800 Watt Max
and the subs are only 10" 600watt 4 ohms I would like to just connect my (2) 6x 9 to the amp as well.
John