Rated 5 out of
5
by
Anonymous from
Great big bang for the buck!
I have two R-121SW subs filling in all my bass in my 7.2 theater room setup. These subs sound amazing and easily rattle the entire house. In fact, the gains are not even at half volume! They’re a great big bang for the buck with great quality sound!
Date published: 2026-02-23
Rated 5 out of
5
by
Antonio Z from
Excellent
I bought the R-50PM + R-121SW combo and was well worth it. I fully enjoy the way it sounds.
Date published: 2025-12-03
Rated 5 out of
5
by
Nunya from
Klipsh Rock
I’ve been Rocking a pair of Fortee II’s since 88 and added not only a pair of these bad boys but also added the rest of the top of the line Reference Premium Surround pieces to complete 7.2 surround sound, simply amazing.
Date published: 2025-11-04
Rated 5 out of
5
by
Elusive416 from
Good for the price.
Great sub, compared it to a sealed SVS SB-1000 in store and was impressed. I thought the sound from the 121 was much cleaner. It may not hit the same lows but is a powerful unit. I recommend the 121 over the 120SW or SWi as it has higher RMS. Great purchase if you can find it on sale.
Date published: 2025-08-05
Rated 5 out of
5
by
TomCat2 from
Great Subs
I have two of them and they really sound great. Excellent product.
Date published: 2025-03-30
Rated 5 out of
5
by
ErGr from
How did I go so long without a subwoofer?
This is my first subwoofer. Bass for days. Can thump the house for hip hop. Still sounds great when turned down. Renders instrumental bass very well
Date published: 2025-01-18
Rated 5 out of
5
by
DPS11 from
Highly Recommend
Great quality construction great sound. I love how they Look and the build quality is outstanding.
Date published: 2024-12-16
Rated 5 out of
5
by
Mason G from
AWESOME SUB WOOFER
Bought this Sub on a 50% off sale to replace my Super Nova that was fried by a freak electrical surge through my house. I must say the new Sub fills the room as well as my old Double 12" Super Nova. I highly recoment. This is paired with three front wall Pinnacle speakers and three OmniMax surrounds and the combo sounds amazing.
Date published: 2024-12-14
Rated 5 out of
5
by
Albert Dean from
Deep clear sound , on low medium or on max volume
I bought this for one reason and one reason only , and it delivers now I’m a satisfied customer never looking for another brand , I’m set and always be a Klipsch dedicated customer
Date published: 2024-12-12
Rated 5 out of
5
by
Torey from
Awesome sound
This subwoever was so good I had to buy another one klipsch you never disappoint.
Date published: 2024-12-09
Rated 5 out of
5
by
DGreen from
Monster subs for Monster Soundtracks!
Used two of these subs in my home theater. They were to match my Klipsch theater speaker suite of 7 other speakers.
The subs exceeded my expectations even on the most powerful soundtracks in Godzilla.
If you want the power and efficiency for the high dynamic range necessary for modern monster soundtracks there is no substitute for Klipsch!
Date published: 2024-11-20
Rated 5 out of
5
by
A. Munsey from
Clean and room-shaking bass.
I have a matching pair of 121s in my all Klipsch speaker setup - great sound and easy dial in (crossover and levels) with my Onkyo RZ receiver - awesome and immersive.
Date published: 2024-11-12
Rated 5 out of
5
by
taha from
awesome subs
these subs are awesome, i bought 2 of them and paired them up with a set of the fives heritage series, set the subs to where it sounds well balances, everything is connected to my computer using skw optical cables to the fives and each subs is using skw subwoofer cables. If i could figure out how to get a picture to post in this review i would.
Date published: 2024-08-03
Rated 5 out of
5
by
C4 Mechanical Az from
Big bass and clean
These subwoofer will make my whole living room shake, had to turn it down. Very nice bass and best when matched to Onkyo receiver.
Date published: 2024-07-15
Rated 5 out of
5
by
Sexymanspin from
Added to a much more expensive system and happy!
You need eq capabilites and its far from perfect. But for the price it makes compromises in the exact right places if you value just nice, clean, tight, light and powerful bass its very good. And it looks great too!
Date published: 2024-05-03
Rated 5 out of
5
by
BobRR from
They work and sound as expected
It's lighter than the non ported K's I had before, and sound the same
Date published: 2024-05-02
Rated 5 out of
5
by
Samy from
Really Good
The subwoofer is a little big but the sound is impressively good
Date published: 2024-04-27
Rated 5 out of
5
by
Anonymous from
A great value
Should come with it's own seismograph. It is that dramatic
Date published: 2024-04-16
Rated 5 out of
5
by
ajay from
Shakes kitchen glassware as expected
Bought this sub to supplement my R-40PM’s. I’m still playing with the gain/crossover configuration, but the base travels and has a great punch. This will certainly shake your kitchen glassware and knock you out if you turn it up! I got the y-splitter cable to connect the sub to the speakers because I guess you can get better (double?) output..from one novice audiophile to another.
Date published: 2024-01-30
Rated 5 out of
5
by
Adam F. Dynda from
R-121SW
A deep bass that fills the entire room. You can feel the crisp and clear sound in your ears and chest. Great speaker.
Date published: 2023-12-20
Rated 5 out of
5
by
Stupot1036 from
An outstanding sub
The bass is fantastic, it sounds great with music, movies and gaming. It blends well with my two R-820F towers, R-34C center and the pair of RP-502S speakers.
Date published: 2023-12-17
Rated 5 out of
5
by
Vance from
SUB'S
I wanted the 10 inch for tight sound, to my surprise the 12's are great.
Date published: 2023-12-17
Rated 5 out of
5
by
Emilz66 from
Boom!
Received very quickly and in great shape. Hooked it up and Wow! We have been w/out a Subwoofer for years and the R-121 delivered in a big way. Great sound and there has been some heavy bass put through it. Also appreciated that this product is made in the USA 🇺🇸 Very happy with purchase.
Date published: 2023-12-14
Rated 5 out of
5
by
Mzspen78 from
Great Subwoofer
Very pleased with the subwoofer. Strongly considering getting a second one. Rattles my basement and it’s not past halfway up on the gain.
Date published: 2023-12-14
Rated 5 out of
5
by
Tank from
Go with the woofer you won't be sorry.
The addition of the woofer really enhances the sound. It makes the system complete.
Date published: 2023-12-13
Rated 5 out of
5
by
R. MARSH from
Awesome subs!!
These subs are great ,i cant imagine having more bass than these two R-121SW 's produce, they hit hard for sure . I love them.
Date published: 2023-12-12
Rated 5 out of
5
by
Yeff from
Fantastic subwoofer!
I have been very impressed with the performance of this subwoofer in the short time that I've had it already. Very clear, powerful bass that can fill the entire 2k sqft house with sound at only half power if desired, but it still pairs very well with the R50M bookshelf speakers without overpowering them.
Date published: 2023-12-09
Rated 5 out of
5
by
BOONEEMAN from
Great Bass for the Money
First big purchase I’ve made for a subwoofer and I’m floored by the oomph it gives to my music. Paired with some reference bookshelves, it gets the job, and more, done! I absolute love it.
Date published: 2023-12-06
Rated 5 out of
5
by
Imwildemike from
This thing thumps!!
Added so much dimension to my existing system, can't believe I waited so long to order this. It's paired with 2 x R-605FAs, an R-30C, and a pair of R-40PMs.
Date published: 2023-11-23
Rated 5 out of
5
by
muley from
Great Sub and Great Value
I just received the R-121SW subwoofer and am very impressed with the performance and the Black Friday price was fantastic! Just a really great value!
Date published: 2023-11-18
