I'm in the midst of finishing up the enclosures for my latest project. Once I get the boxes completed and drivers installed, I can verify some impedance measurements to finalize the initial design of the midbass crossover. The problem is, a 4th order L-R at 300Hz makes for some pretty hefty component values. Fortunately I'm looking at a load that should hit a minimum of about 3 Ohms, so the inductors aren't that huge. What that does mean is that I need some big caps, on the order of 300uF. So far I've only seen Bennic bi-polars and Solen's Fast Caps at Madisound in this range. Obviously the Solen's get quite expensive for a first try which I will likely alter a bit. I'm thinking of just getting a few caps on the order of 50, 100, and 200uF to allow for some play. Does anyone have any sources for good experimental use or good prices & quality at these higher values? Thanks in advance, Mark Seaton Oh.. I'll fill you all in on the project soon enough .