Customer Ratings & Reviews

GREAT sound

I have many years of experience in studio recording in the music industry - as a musician. So I was looking to build a system that can replicate the studio sound as best as I could to listen to a wide variety of music. I do not need thumping deep rattle the next car bass, I want clean musical sound. I have had alpine subs and those can punch and get some solid deep bass, but that was not my goal with this setup (although it can do that too, rather well). This is my 2nd purchase of this sub in a second vehicle and in both cases this has performed exactly what I needed. The sound of an upright bass sounds amazing, can easily go into the higher frequency range and make the transition from door speakers to sub seamless. I bought this sub to play anything I threw at it and do it well, not to only play one type of music all the time. Mostly Jazz, Classic Rock, Ska, 90's, Classical, Pop (wife likes that stuff..) and occasional R&B. I recommend the kappa components to go along with the sub - some say the highs are harsh, but I call it accurate and clear. This sub can do it all, I'm very happy with it.

TL;DR, get this amazing sounding sub for your setup if you want perfect sound and a strong presence. Might want to go larger than 10" or another brand if you want that deep killer decibel punch and trunk rattling bass;)

Awesome sub for the price

It hits hard and looks great. The 4 to 2 ohm switch makes setting up your amp easy. I'm running it with a mono block jl 500 watt amp and outs loud and hitting great.

car speakers

These speakers sound nice and balanced not to boomy but a good punchy bass and treble sound. They can handle whatever power amplification is fed to them. I would recommend them for their overall value and just crisp clear sound without the distortion.

Infinity subs and speakers. Bad a** products

Love infinity products. The 100.9 is a great value and very good addition to any system they sous excellent and can handle the power. Highly recommend

Great price on a great product

Good tight bass response, very durable, good price highly recommended.

high quality

have lots of experience in the car audio industry and decided to get these after doing research on what i felt would be best for my setup. My last system had 2 L7 12s but this time i was looking to conserve a little more trunk space and was looking for more quality. put this in the recommended .75 sealed enclosure powered by a polk 5 channel amp and have been impressed so far. doesn't hit the lows like my last setup but for the size this really packs a punch. One of the most accurate sounding subs ive heard. going to try it in a ported box soon to compare.

Great sound

Great item, sound is excellent , best item I brought, the value is ok.

Great sub!

For a single 10", this sub hits hard. It looks even better. Hookup is flexible with the 2ohm switch. Makes wiring that much easier. Just what I needed to add clear bass to my system without annoying everyone else around me.

Sweet Sub

Nice smooth sound comes from this amp, looks great too!

High Quality Sound

I ordered two of these and built a box to Infiinty's specs with 1" MDF. These sound so great! They don't play extremely loud (powered perfectly by a Kappa One) but they blend so well with the rest of the system. The sound is clean and hard, not boomy. On that note they can handle high volume, but if you want that slammin' bass in your face feel, these aren't for you (I know these are only 10's. but I'm confident the 12's are very similar). I am an Infinity loyalist in the car as well as home, and these remind me why!

Exceptional

Great product and good looking, would buy again. Infiinty a good way to go.

These Infinity's are amazing!

I had one Kicker CVT10 2 Ohm speaker for a year, it was a good subwoofer, generally i liked it. Until my box rattled and it was too small for the sub and it was bouncing because of the screws. I went ahead and built another box and put in two of these subs in. What a difference, they don't hit much harder because the same amp is being used - a 400 watt rms kicker mono amp. They are much better sound quality wise, they are so much cleaner it is amazing. They also hit lows the Kicker never responded to. The difference is clear. For ten dollars per sub more, these subs are superior to the kicker.

very nice

the sound quality is very very wonderful that these subs produce. they look very nice and the 3 voice coils is nice. the only bad thing is that the magnet is so big that they wont get very loud at all at 350 rms a piece. they need more power than 350 rms apiece but i dont know if they are capable of handling more.

SSI is a TREAT! IB - YES.

I have a pair of these installed IB in the rear deck of my Altima. They are awesome, they have a lot of output, and are not as musical as some subs I have had IB in the past, but they play well down low which is what I got them for. I would certainly recommend these to someone who is going IB and in a box they will do just as well. The selectable smart impedance is awesome. It really gives you great flexibility with amplifier selection.

Last subs I'll have to buy...

Powering a pair of these with a Kappa 4 in bridged mode. Used the Infinity specs to build a ported enclosure and it turned out perfectly. Loud, crisp, clear - everything I was shooting for. Had to remove the back seat in a extended cab GMC to make room for the enclosure, but well worth it. The drive to and from work is now an awesome experience that I look forward to each day. I am just wowed with how the system turned out. Accurate reproduction is what these subs are all about. Probably not suited for rap thumping, but for my classic rock line-up -- couldn't be happier!

ROCK SOLID SUB!!!!

THIS SUB ROCKS, LOVE KAPPAS, PURE SOUND QUALITY ALWAYS, WOULD MOST DEF RECOMMEND THIS SUB!!!! THANKS SONIC, FOR THE BEST PRICE ONLINE FOR THIS SUB, AND EXCELLENT SHIPPING!!!! SONIC IS THE OUTSTANDING!!!!!

Excellent buy

I got two of the kappa 100.9 in my Infiniti G37 and it rocks really hard. They are powered by an infinity kappa one which really delivered an awesome sound. I also have a kappa four for my kappas 6x9 and 6-1/2" components which is really awesome. Would recommend any time.

Great Lows

This is a great sub. I have an MTX formed enclosure for my 1994 Z-28 and the 10" that was in it just wasn't producing the lows I expected. I replaced it with the Kappa 100.9. It fit perfectly and now the lows are much more noticeable. The construction is very solid, and matched with Kappa speakers in front and read, powered by an Infinity 5 channel amp, the sound is great. The 2/4 ohm switch makes it an easy fit for any system.

High quality value, with the output to match!

Very nice quality subwoofer, at an affordable price. Build quality better than Kicker yes. I have always used Kicker subwoofers, and this time I just wanted one small 10" driver. I chose to give this Infinity Kappa 10" a shot. Just got it hooked up today, and I was blown away with it's sound reproduction and output for such a small driver. I have it in a 1.0cu ft sealed enclosure. Hits accurate, deep and tight. I have about 600rms going to it. You wont find a better sub for the price period.

Fast and easy transaction

Purchased the Kappa 100.9 for a project vehicle I have one installed and tested Not running a lot of power yet this sub for its smaller size sounds GREAT Cant go wrong with this one

good looks, great sound.

My title says it all. all the lows i need, good looking design, really really beatifull sound. The switch on the side makes it easy to hook up. thats a plus...

amazing clarity!

A close friend of mine just picked two if these up for his Scion tC and I have to be honest I have never heard such a good sounding sub. Definitely not the loudest but if youre looking to make music sound how it was intended to, these subs are for you!

Sq install

these speakers are very clean and detailed sounding with very impressive bass response. they do seem to be missing some of the fullness of some of the speakers I've use, but that could also be just the acoustics in the vehicle and/or the need for some equalization. Anyway I am impressed with the sound quality and would buy again.

AWESOME if urnafter 10s' these r a great candidate

We have 3 of these puppies in our trunk and they realy kick, powered by a hifonics 1000.1d Amp @ 2 ohms. We had a reading at 132.2 db. Stoked! With the mew shipment of Vibe black AIR 6" component & Vibe 6 x 9 (Black Air) she should be pumping!!!! THANX SONIC!

Dahhhhhmmm

Just copped 2 of these in my 05 impreza, these are the best subs I've ever owned, they aint the loudest but most def crisp as hell. Should be charging 200 a sub. I got these hooked up to a 1000 watt kenwood set at 2ohms, and they pull the s*** out this amp. Lookin to upgrade the amp but it does fine for now. Great buy, recomend to anyone.

one of the best SQ drivers ive heard

these thangs can get it, believe me, and they are some of the best looking cones ive EVER seen. it sounds just so good, and moves a nice amount of air. a def. 15/10.

Bass

I put this sub in a sealed box per Infinity's dimensions in a Mini CooperS wow what a difference. This sub looks and sounds great.

Bad a** subs

These subs have a very good sound and hit very hard. Good people to buy from

Sound quality sub! Clean bass

Originally I bought a kicker compr. It had really nice low bass but no mid bass at all. Returned it and bought this infinity. Running it in a .75 cu sealed boxed and it hits so clean and nice. Lows are loud and clean. Also hits the mid bass with no problem.

punches

I'm not a bass boomer. I like my bass tight but with a punch. this sub is the answer. well constructed and great feature with the 2 or 4 ohm option. a little pricy but as anything you get what you pay for!

Excellent sub.. POWERFUL for a '10!!

This sub is very, very nice.. Nice clean bass, very solid build quality. I was immediately impressed by the quality of the product as soon as I took it out of the box. It also weighs almost 20 pounds.

The sound that can come out of this thing is crazy. My friend didn't believe that it was a 10 when he heard it because it hits harder and cleaner than his 12. Definitely buy a quality amp for this. I was using a 380W rms Pioneer amp for a week until I got one more suited for this sub; a 300W rms Polk monoblock. With the Polk amp running the juice for this sub I could not be happier.

At 160 bucks, this is a great buy that no one would be disappointed with. The the genius who said his subs were making crunching noises after a week, you blew your subs.. don't give low ratings because you don't understand the difference between rms and peak power. This sub is solid.

Bad Sub!

This thing blew up in less than a week... Do not buy this sub! Replaced it with an Alpine Type-R 10" and have not had any problems.

Can't Wait

2 of these Kappa's are being run in and I can't wait till I can turn them up to see what they can realy do. They sound clean and crisp! However they have a lot of room for more power in a week or so, but they still thump now!

Meh..

Had 2 of these for about 3 weeks running on an Infinity Kappa One amplifier, had to return them to sonic because they were both making metal on metal crunching noises when they were on.

Disspointed

I've had these subs for a few months now. I've got 2 of them powered by an Infinity Kappa One amp @ 800w. They sound great but they are really lacking in the amount of bass they put out. I knew it would be less than most subs but this is ridiculous.

2 of these with 800w are slightly louder than 2 Sony Xplode 10" subs at 350w rms. Both are in sealed boxes. I might move these subs into a ported box just so I can get a little more bass from them.

BOOM

A frind of mine has three of these in his honda civic in series and wow is all i can say. Hurry and buy now beacause these actually compare to sum of the higher end kickers ect.
Pros: they look awesome and they hitt so hard with great lows. Cons: none

.

if it is LATE sonic WILL MAKE IT RIGHT they made me HAPPY sonic will see me ,deals you will get with them

Awesome sub

I wasn't looking for mirror shaking bass I just wanted good tight accurate bass and this sub delivered. Great sound at a great price. Couldn't ask for more.

Great speaker

This sub is awesome I have been in love with infinity for years this sub reinforced that

BEST 10" SUB !!!!!

BAR NONE, BEST 10" INCH SUB WOOFER ON THE MARKET !!!!!! THIS IS MY SECOND INSTALL, AND WILL ONLY USE INFINITY KAPPA'S....

satisfied

I purchased 2 infinity kappa 10' subwoofers and they were amazing all that i wanted the high are nice and low's are deep very pleased on the way they came out. Design was brilliant and quality outstanding the best subs ive owned to this day hooked em up to a 1000 rms watt amp and was very satisfied especially with a bass level knob. Did have to switch my door speakers as well because the watts werent as good when macing them out but overall very great product. Sonic electronix once again you've satisfied my expectations

Kappas really hit hard

First off these are the best looking subs I have ever seen, pictures don't done them justice, it's a crime that I put them in a down firing box . They are powered by an ole school Fosgate bd1000 pushing 1000rms @ 2 ohms which the ohm selector switch on these bad boys came in really handy. They are handling the power really well although I haven't cranked them to their max yet because they are still breaking in. These beautiful subs hit low and hard and at a very good price you can't beat the value
I would definitely buy these a 1000 more times without hesitation.