The Parasound might be a bit harsh, espescially with Kappas. Adcom's GFA555 would be a better match. Don't get too concerned about the number of watts. I only have 100 watts powering my Kappa 8's but it takes 3 boxes weighing in at nearly 150 lbs.
The Aragon 8008 is a good hefty choice for solid state at a decent price. A strong tube amp has less of an iron-fisted grip on the bass, which the Kappas respond well to, but a good one will be expensive. These are very demanding speakers but can deliver awesome results with the right electronics.
The Parasound would be a decent choice for if you want to vertically biamp. You can use different brands of amps if you use a good quality attenuator on the louder. Pots sounded bloated.
The Aragon 8008 is a good hefty choice for solid state at a decent price. A strong tube amp has less of an iron-fisted grip on the bass, which the Kappas respond well to, but a good one will be expensive. These are very demanding speakers but can deliver awesome results with the right electronics.
The Parasound would be a decent choice for if you want to vertically biamp. You can use different brands of amps if you use a good quality attenuator on the louder. Pots sounded bloated.