Customer Ratings & Reviews

I have this in a bedroom converted to a media room, so not a large room.....man does this thing absolutely DUMP! There isn't a safe place in the room, and I love it HA! Makes my body rumble like I am in the action. Don't sleep on this if it is on sale. Unless you find the SVS SB100 pro at a similar price, this is the mid-level sub at a low-level price you need.

Excellent sound quality. Crisp bass sound. More power than needed.

It suits our living room for its size(15*21) and is perfect

tried a lot of subwoofers and this is the best sound by far

Sounds great and loud bass.would definitely purchase again

I haven't purchased from BestBuy in a while... but seeing this sub on sale got me excited. Needless to say, the sub got delivered to me the next day and it arrived in great condition. As for the sub itself, I've trusted Klipsch speakers for a long time, and this sub is no different... it can easily tremble the room. I setup corner and wall foam padding to dampen any vibrations. If you're investing in a sound system, a sub is just as important as the speaker towers and the R-121-SW II sounds fantastic. Hoping for a sale on the RP-504C II sometime soon to add it on as a center channel.

What's in a sub? Well how about window rattling explosions and gunfire thats sharp and crisp! If that's not ur thing why bother with home theater in the first place? Also the polk psw111 with the heartbeat defect it replaced makes a better boat anchor that anything else. With the 5 year warranty on this baby, rest tight!

Sounds amazing deep low base is amazing hits super hard be ready for it lol

This is a powerful speaker! This subwoofer really completed my sound system. Rich bass with strong vibration that really resonates in your body.

Purchased to replace a the previous generation that was damaged while moving. Klipsch continues to amaze me! Great build quality, incredible sound, and exactly as expected!

Loud heavy bass, you can really feel it, you can even hear it from outside. i keep the gain around 25% and its still some good bass. easy setup.

Love this sub!! Make sure you warn the neighbors haha and be sure to buy a shielded cable to connect to your amp. I had unshielded and picked up a hum noise even when not playing. Swapped cables - issue gone

It was great and hits decently. I haven’t had time to fox the sun to it’s max but I enjoyed it. It’s good for a big for a small room.

If you like good punchy bass, look no further! The cabinet is very clean looking, I appreciate the power LED which is noticeable if you look for it but not distracting. I have this sub paired with Klipsch speakers and a Yamaha receiver. I suggest setting the Low Pass setting on the sub to LFE and setting the crossover from your receiver whenever possible.

This thing is FREAKING AWESOME! We previously had the R-110SW version of this sub that was unfortunately taken out by a lightning strike to the house. I thought it was great until i heard this with our home theater. The bass is so deep and clean it rattles pics off the wall if if i turn the volume up a bit too much. In a weird way im happy we got hit! [But I still bought product protection, not risking that again ;) ]

Great sub for the money, smooth delivery that fills are large room very well. I was a replacing a more expensive sub that suddenly quit working. Really good value!

I use my sound system for music and movies, maybe a little more for music. I played my favorite songs with the deepest bass and this sub doesnt dissapoint, had it up less than halfway and it was more than enough. Ill be buying another one for sure, when i get a house out in the middle of no where so i can rattle the windows out, without the neighbors yelling at me.

Amazing subwoofer, it has everything that I need. Paired it with Marantz amp.

Really love this brand. So far this thing is loud and perfect base

Sounds fantastic! This replaced an older Klipsch sub, and it works flawlessly with the rest of the Klipsch speakers and Denon receiver.