Infinity Kappa 42.9i 4" 2 Way Speakers

My experience with these speakers as well as all Infinity products has been extraordinary. Th performance when combined with high end head units and amps is outstanding for the price. These were installed in the rear of a BMW Z3 to compliment a set of Infinity Kappa 50.9 cs components. They were driven by a 75 watt rms per channel amp using a Kenwood Excelon head unit. The improvement of the musical experience in a difficult environment exceeded my expectations.

Infinity Kappa 42.9i 4'' 2 Way Speakers Just as I would expect from Infinity. Outstanding Sound ! ! ! I replaced my JBL 4'' Power Series speakers, they worked pretty good. But these were a step or two up. Leo P. Omaha, Ne.

I ordered this speaker to replace 4 inch speakers in the rear of my m3 vert. They are a little smaller than 4 inch. And they are too deep for my car. 1 7/8 inch depth. Needed only 1 1/4 inch maximum. Oh well, returned them, but had to pay 14.51 for return shipping because the seller would only send me a return label if they were defective. Remember that if you need to return something. Also, there is something in these speakers that are considered hazardous, so normal return options are different.

i needed 4" speakers.these are not 4" at all, not even measured to the outside of motor/frame. i took out 4" stock speakers and measured the cones and they are 4" and they cover the hole perfectly. these however do not come close to covering the hole at all and leave about 3/8" opening all around the motor/frame. only thing holding/suspending them into place is 2 of the 4 finger mounts. they sound awful because the cone is much smaller than what a standard 4" cone is, so the tones are like very high and very high mids. the bass simply splashes the speakers into next year and is a joke at best to try to get any bass from them what so ever.sounds like a remote bad tweeter in my back seat.i should ask for a refund...

The crossover is too big, the tweeter feel off (glued on), and for the price, wanting a little more. I love Kappas, but was a bit dissapointed with this speaker. Clean sound, okay if powered off of head unit, better if powered by an external amp.

I installed these in the rear deck on my BMW e90 since it can only fit 4 inch speakers without modification. They sound great along with my kenwood excelon 10' subwoofer, giving it a great sound combination.

My husband put these in his Jeep to go with the Sony Xplod radio he bought and his music Rocks! The songs sound so crisp and clean. I will put infinity speaker in my Trailblazer when I get the chance.

Bought these to replace an old set of Rockford Fosgate speakers in my 77 El Camino and they boosted the sound quality to unbelievable levels..Love Em.

I have put it in a toyota mr2 aw11.Sound is amazing compared to OEM.Ok its a small car and small volume, but sound is amazing