[F1 fan]

Hi Otto,
Yes my soldering iron has been busy the last few years,and I,ve got more unfinished projects that I have been avoiding for months.The Wifey has me busy with house repairs and updates and other unimportant tasks.

I would like to post some pictures but the only digital cam I have is on my camcorder .The picture quality is poor to say the least( 1.3 megapixels).So I will need buy or borrow a real camera before I can do this.May I ask when I do happen to get some good photos how do I go about posting them on this forum?

Here's a description of the sub xovers of which I have two.The one I use to augment the bass of my front left and right speakers uses a summing input with adjustable gain. This is followed by a switchable inverter stage to change phase from 0 to 180 deg. Then into a 24db per oct LPF at 60hz followed by a single Marchand BASSIS eq for fine tuning the twin 10" sealed box woofers.

The one for my LFE channel has an input buffer then an adjustable gain stage. Next is a 24DB LPF at about 50 hz.Then comes a single band of parametric EQ ,followed by The phase control which is variable with a pot between 0 and 180. Then I have a Linkwitz type boost circiut to give 6 db of boost at 28 hz to single 12" sealed driver.

I have since obtained a schematic diagram for a 360 degree adjustable phase control that I intend to incorperate into both units.

If you would like more specific info let me know.

Fred