I bought a set of infinity kappa’s awhile back and really liked them. 6x8 2 way 680.9cs. I’ve since blown the tweeters. I bought an oscope and set both amps with it. The kappa’s sounded great but 160 watts was too much. I’m replacing them with jbl stadium gto 860c. I’m curious how the sound will compare. The kappa’s were 4 ohm so I bridged my 4 channel amp. The jbl’s are 2.5 ohm so are only going to get 75 watts a side. I’m planning to just use the front channel on the amp. Us acoustics usx 4065. I might have to get a new amp. What do you guys think?