Infinity 120.9W Sub + 50.9cs and 52.9I Speakers + RE Audio XTX500.5 Amp

Hidden Gem!

The Infinity Kappa 120.9w is certainly a hidden gem! I almost didn't give it a shot because of the gold look (I prefer plain black - or something not flashy), but I'm glad I gave this subwoofer a chance!

I have it powered by a Soundstream RUB1.1000D monoblock amplifier, at 4 ohms. The amp can put out 800 wrms at 2 ohms. The amp is rated for 600 wrms output at 4 ohms.

My opinion is that Infinity has greatly underrated power handling capability on this subwoofer. 500-600 wrms I'm putting to it has not even pushed it to it's limits yet.

The woven fiber cone is extremely stiff (less chance of cone flex and high volume distortion) yet very light weight (the motor on this thing with 500+ watts to it moves the cone effortlessly and with great control.

I've not been able to get the thing to distort even at max volume, unless the amp is going into clipping from improper gain setting. With the gain matched perfectly so I get max power with no clipping, the subwoofer takes it all and reproduces sub bass brilliantly.

Transient response is excellent. Very fast bass guitar, electronic bass, and double kick drums are all reproduced faithfully and clearly. Versus the previous subwoofer I had in the car, I can hear MUCH more sub bass detail in music - that I didn't even know was there, as the other sub muddied it up.

It's transient response and fairly flat frequency response in a sealed enclosure also help it blend very well with the front stage. With very little tuning I was able to get it blended perfectly so it doesn't sound like a bassist is dancing his way from my trunk to dash and back, or like there is a bass explosion going off in the trunk, completely separate from all the other parts of the song.

Though this subwoofer is very accurate and sounds great with no audible distortion, it still gets LOUD for 1 12" in a sealed enclosure.

In fact, it causes quite a bit of panel flex on the vehicle (Lexus, mind you - very tightly and well built), and gets to the point where it's almost too loud (and I used to be a bass head - now having switched more towards sound quality builds) - for my wife it is certainly way too loud if I crank it up, lol - the look (er, grimace) on her face...priceless.

If Infinity keeps building subs like these, and the word keeps getting out, they should do quite well in sales. These are hands down the BEST SUBS FOR THE MONEY I've ever owned. I've paid more for ground pounders with crazy power handling and excursion limits, and paid less for budget subs. For the price, I definitely give these best overall subwoofer - sound great for sound quality builds, but still capable of getting quite loud and shaking everything.

The construction quality of this woofer tell me it will last - they did not use cheap parts on this. The speaker wires are easy to connect (no soldering) with hex screws (allen wrench supplied by Infinity in package).

The ohm switch is easy to use - the number not covered by plastic, and thus brighter, is the one you have selected. Flick the switch easily from 2 ohm to 4 ohm. This is a fantastic feature I hope more woofer manufacturers go with in the future!

Great Sub - SQL?!!

I bought this sub after reading many positive reviews about how it was a very nice SQ sub, so sound quality is what I was expecting. What I wasn't expecting was for it to be as loud as it is. This sub will go low and loud, and sound great doing it. The bass is tight and accurate at all frequencies. I have it in a 1 cu ft sealed enclosure, running about 400 watts RMS @ 4 ohms. It really turned out to be a better sub than I was expecting. I'm not sure there is a nicer sub at this price point (about $140). Amazing, really. (Looks great, too!)

Awesome.

I bought this trying to upgrade my old system. I wanted better sound, not more sound. The bass, the kicks, low end sounds sound like what they are, not just boomy bass. Its not as loud as my old subs but I went sealed this time instead of ported. Hits hard on high and low bass. Plus, looks freaking awesome. May not be as loud but it is so clear. Dont get me wrong, its still loud..... Btw, be careful with the Ohm selector switch, which is cool btw, I had it on 2 ohms and my amp was pushing 850 watts to it for weeks. It took it like a champ though. I WILL be getting one more eventually.....

Excellent purchase

I installed this sub in a BMW X5 to supplement the bass on the Hi-Fi system. Wow. This sub provides deep, clean and rich bass. Way more that my ears can stand. Bonus, it looks great.

Very nice subwoofer

I have this subwoofer in a 1 cu ft box and it is receiving 270 watts @ 4 ohms by a Precision Power 900.5 amp. The bass is very tight and deep and it is a noticeable improvement over the Diamond D3 that it replaced. I primarily listen to hard rock/heavy metal so I wanted a subwoofer that was punchy, clean and could consistently hit the low notes to round out the sound. This subwoofer could absolutely handle more power than I am giving it, which is nice to know if I ever decide to upgrade my amp. Cosmetically this is one of the best looking subwoofers I have ever seen and the gold, "woven" finish makes it look classy and expensive. I would highly recommend this subwoofer.

Infinity kappa sub woofers

Words can not explain the quality of these subs they are absolutely the best subs I have ever purchased, the bass out of these subs hits so hard and clean u won't believe it, overall, in my opinion they are the best.

Better then W6:D

I've had many subwoofers in the past cvr's w6 re audio american bass sony(lol) etc....i've never had one that i enjoyed the sound so much. It was exactly what i wanted all along. Not crazy loud and not to quiet to notice. Although for 1 12 it gets LOUD but still sounds good. I have it in a 1 cu ft sealed box. At first i had my jbl gto501ez giving it 350 rms while it was breaking in but i was wanting a bit more out of it. so i turned it to 2 ohm. which is super easy. I love that about it. No need for lots of wires :P with 500 its like a all new woofer:D super loud and even better sounding. I believe this sub can handle more then its rated for. It was barely moving on 350 and i know gto501ez is underrated. Awesome value. Awesome sq. Super spl:) not to much though!

Perfect:D

I bought 1 of these from here a few months ago. First impression was the sound is amazing. I was very surprised by how accurate it was playing yet still so loud in a 1 cu ft sealed enclosure. I've had lots of subwoofers cvrs w6s american bass. Ive had 10s 15s 12s. I wanted this subwoofer to go with a new brand setup i decided to do. Which was jbl gto 6.5s and 6x9s with the gto501 and the gto504 amps. IMO the sound is fantastic the speakers are loud yet sound good doing it as well as the subwoofer. I can honestly say all the products are amazing and i would recommend any of them. I didnt buy all the things from here but i found the 501 and 504 at about $110 each. When i first bought the subwoofer before hooking it up i contacted infinity and asked if the subwoofer could handle the 500 rms off the jbl amp and they confirmed it would work just fine and wouldnt mess up the warranty from over powering if it were to break. The only reason i did that is i had a 15 in a 3.0 cu ft enclosure it was very loud, but wasnt what i wanted. I thought the 12 wouldnt give enough output for my liking. However after hearing it for the first time ive been so amazed with the output that i havent changed it from the 350 rms at 4 ohms to 500 at 2 ohms. It would probably amaze me more but i dont even need it. Plenty of output. Its the best subwoofer ive ever owned. It looks really nice. Heavy magnet and interesting with the 2 to 4 ohm switch. I love it. Since the first time hearing it ive noticed it breaking in getting louder an lower so i cant stop listening to it. If im in my car im playing it loud an loving every minute on any genre of music.

Sounds sooo good

I love this 12! Recently, I've owned JL, Alpine, Pioneer but this is my favorite in a sealed 1 cu. ft. box. The sound of the sub blends perfectly with my 6.5 components up front and my 6.5 coaxials in the back. I'm finally just enjoying the sound and music and not constantly trying to eq the heck out of the sub to get it to sound right. I don't think you will be disappointed with this sub, excellent build quality, excellent sq and looks beautiful...I'd definitely recommend.

Great Quality

Product as described great speaker superb sound quality very fast shippers got products within two days.