Infinity Kappa 9's sound terrible...HELP


Recently I got a pair of Kappa 8's. Plugged them into Adcom 860 preamp and to an old HK Citation 16, GFA-555 and GFA-565's. They sounded...beyond my wildest dreams! Absolutely amazing!

A week later I bought a pair of Kappa 9's. Was really excited thinking they would out preform the k-8's! Plugged them into the same system and they sounded like crap. Tried running each k-9 to 1 GFA-565 and bi-wire them, changed all knobs to flat, experimented with the adjustments on the back of the k-9's in every conceivable position, ran them in standard and extended bass modes...and they still sounded terrible!

Has anyone experienced this before? Any tests or checks I can do to eliminate any doubts of anything? If I can't resolve this on my own, I guess I'll have to take the speakers somewhere...if I can a reliable source between the Philadelphia to Harrisburg, PA area.

Also, if any can suggest any good techs between the Phila and Harrisburg area for amplifier rebuilds (Adcom GFA-555 II models) I would also appreciate getting a name and address.

Thanks guys...appreciate your help!
barricadedbob
Usually the issue folks have with the bass on the Kappa 9s is the the woofers are wired wrong. The should be wired in series. The positive wire will go to the + terminal of the first woofer then a short wire will go to the - terminal of the first woofer and then to the + terminal of the second and of course the negative wire will go to the - of the second woofer.
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I own A set of Kappa 9 and when I rotate them into my main system ( powered by 2 Krell Fpb400cx) the bass slam is incredible 
I know another issue some have had is no polyfill inside the cabinet. It makes quite a difference.
dstechlabs on the Bay has new and improved crossovers for the Kappa 6, 7, 8 and 9. Prices range from $345, 395, 445 and 495 - with free shipping within the lower 48! These address and remedy the below-2 ohms impedance of the stock x-overs. Overall improvement in sound quality and a more amplifier- friendly load for the amplifier! If I owned any of the Kappa's I would buy a pair of these x-overs!