So Focals have more bass in your system. But how do you know the unnamed speakers of your original post are capable of more bass than you're currently getting? Have you experimented with room placement?
As far as impedance matching goes, there are plenty of high current, good-sounding amps well under $4K that can handle a sub 4-ohm load. A Parasound Halo A 23 can be had new for less than $1K. Even their modest $549 Model 2125 has an FTC 2-ohm rating, as does their twice as powerful $1349 Model 2250.
As far as impedance matching goes, there are plenty of high current, good-sounding amps well under $4K that can handle a sub 4-ohm load. A Parasound Halo A 23 can be had new for less than $1K. Even their modest $549 Model 2125 has an FTC 2-ohm rating, as does their twice as powerful $1349 Model 2250.