Hit up Ebay I grabbed up a set of the DTK-30 wide sphere and they sounded awesome they were only like 50.00 for the set and I have them on a RF T400.2 and they take it great. I don't know how well the crossovers sound I ran my own Q series but the ones that it came with looks to be of quality.
I have a set of PTK40's that I'm gonna sell soon. I have plenty of refs as trader and seller on CACO under same sn if needed. I'm thinking about $65 shipped?