Tons of fun and the wife loves it too. It's subtle enough that it's not obnoxious, definitely adds to the experience. I used it with the ONEU audio amp as another poster suggested. Could not be happier. It's definitely worth the money.

Mounted to the box spring under my bed. Very cool for movies! Woohoo 62;:D

I have two of these running 8 ohm off an 80 watt 8 ohm amp and mounted on the legs of my couch! These are tuned at around 40hz for max shake! Operates best from 30-70hz My actual subwoofer operates 60-180hz. By adding this it's the perfect addition to a home audio system to really get that kick in the butt you want in movies, video games, and music! I'll soon be cutting my couch for a better center frame mount but it's got me in love with them! Also makes great massage session or perfect for naps to escape from the world and relax!

A bit underwhelming. Not that much of a KICKER.

Fully recommend great shaker

I have seven of these installed in 7 home theater chairs. I have them hooked up to a Dayton Audio SPA250 250W RMS single channel subwoofer plate amplifier. A mix of parallel and series connection I was able to give the circuit aproximately a 7 ohm impedance, note I said impedance as it is not a linear nor constant value as some might think. With this I am aproximately giving them 25-30 watts of power each. These will rattle you like nothing you have every experienced. Even though they are cheap these are better than the Soundshaker or ButtKicker premium brands. This isn't to say that you can just hook this up to any amp any way you want and expect them to work perfectly. Not only is hooking them up to the correct amp extremely important but also how you have them installed on your chair is equally important. You need to have a solid mounting bracket to adhere these to. For best results install them in the up firing position. The best material to use is wood/pine/oak. Don't try to mount them to a soft surface like the cushion, they will not work correctly. These work great for music as well but if there is a delay as some have reported, then you have a problem with your connection. Most likely you have them wired backwards, which will cause them to be 180 degrees out of phase with the rest of your audio system. As you can expect this will cause a delay. Macke sure the amp you have is rated in RMS. Many manufactures love to overstate there amps as something like 10000 watts of power when it would be lucky to supply 10 watts. This is because there is no standard to what the manufactures have to report. The amp may be able to output a transient power spike at 10000 watts for a nanosecond so the statment is true. RMS however is the average power. Do not exceed the power rating on these either, there is no need as well since they work great in the 30 to 40 watt range. Also, the frequency response of these is 20Hz to 80Hz so make sure you have your cutoff frequency on your amp set to 80hz.

Great for adding localized punch without keeping your neighbors up at night. If you want to rattle the neighbors walls, then you don't want this. If you want to shake your booty without the cops giving you a ticket for disturbing the peace, then this is perfect. I use them in pinball machines because they are so localized that they can effectively shake one machine without overpowering the sound of neighboring machines. They add so much depth to the sound and are exceptional in otherworldly or supernatural applications like the x files, Bram stokers Dracula or twilight zone pinball machines. Better than shaker motors.

very cool piece ot tech does what is was designed to do

Before I bought this unit, I purchased a cheaper one by a different company. It was a little less than half the price of this unit, but I ended up returning it and getting this one instead. The first one that I bought couldn't handle low frequencies very well at all, and rattled at moderate volumes. This unit handles everything I can throw at it like a CHAMP. Zero chatter from the unit, nothing rattling inside. It performs exactly as you'd expect. I'm only powering it with a 20W amp, but it's shaking my desk chair (which it's bolted to) like you wouldn't believe. Very happy with this purchase! Don't cheap out on the other unit, get this one first.

Great alternative to buttkicker brand shakers, which around 5-6x as much as one of these.

10/10 Would buy again. I run mine at 25 at 50 its uncomfortable. I did RMS voltage measurements by raising the gain on 30Hz Sine wave. I have two in series with a low pass filter with a cut off frequency of 80hz. I did this because I did not want to feel dialogue during a movie.

Works awesome! Hooked up to in series (to make 8 ohm) to an old 100 watt/channel 7.1 jvc receiver. In series the maximum is 50 watts per speaker. Have worked great! The only down side is that I can't watch scary movies with these on. They enhance the scare factor so much I almost had a heart attack. Also, google a list of movies that have great bass soundtracks and rent those, you will be pleasantly surprised. To calibrate them, I downloaded a program called tone generator. I then put my volume at 50 and generated a 40hz tone. Increase the volume a little by little till I was happy with results. note They are 4 ohm each so if you are going to connect A single one to an 8 ohm amp...BE VERY CAREFUL. It will create double the load/heat on the amp. I.e. if your amp does 100 watts at 8 ohm, it will output 200 watts at 4 ohm. If you hook 2 in series you get 8 ohm. 3 in series you get 12 ohm. At 12 ohm with 100 watt output, it will give you 33 watts per bass shaker.

I put one under my bed between the mattress and box and WOW you feel base all over. I bought a second to spread bass evenly on a queen size. But 1 will do the job.

This is The tactile transducer you want to buy I have tried several others from different brands and this one is the top so far does everything I need it do with little amplification and no problems worry free A must have for any home theater.

the shaker itself works great. they leave you in the dark as to what amp you need. I have blown up 2 amps and now i give up. (installed at best buy)

I purchased two of these and a little 45x2 amp for VRHOTASRiftElite Dangerous The only words that come to mind are 34;xxxxing Awesome34; Integration into my existing environment (Dennon receiver, 5.1 powered sub) was pretty easy, where the pre-out terminates into the sub I installed a little splitter and ran another rca cable to the amp to drive the shakers. I then mounted one under my chair, one to the back of the chair, fired it all up and got started. Everything in Elite (and every other game I play) now has this weighty, forceful bass feedback that makes stuff in VR feel even more alive. I cannot recommend these things enough.

I had gotten 2 of these bass shakers and installed them under my couch. Loved them, really make your viewing more immersive and I love the tactile kick to music that I couldn't get completely from my subwoofer. Got 4 more and had them installed in my prius c, 2 on the driver's seat and 2 on the passenger's seat. The shakers are very reasonably priced (and the labor for install for me was not much $70) but they will need an suitable amp, also not super bad. For each seat, one bass shaker attached under the seat and one inside the seat on the lower back. I love them.

Works great! I am powering it with Dayton Audio SA100 100W Subwoofer Plate Amplifier. I am using in my drum booth linked to the drummers in-ear system to give him a bass reference in the booth. It has plenty of shake for what we need.

Love these. I now have a 4d theater! Just need the fog now ;-) I hooked these up to a cheap amp, CD channel. The front two seats and the back middle row of my movie theater are on channel A. And the back outside seats are on channel B. So, if someone doesn't want their butt kicked, I can turn those off.

Good product