EARTHQUAKESound MQB-1 Tactile Transducer Bass Shaker - 500 Watts Max, 8 Ohm Impedance - Generates Low-Frequency Effects to Any Surface

Update:I really hate it when reviewers say they will update after they have used the product for a while and then never do. So...I'm going to try and do better myself. I have had these for almost 3 years now and they work just as good (possbily better) than when I first got them and I still enjoy having them just as much. They really do add quite a bit to the experience of watching movies.I see they have also come down in price so what a bargain.Original: As with most things, I research until I drop! I feel the time in researching these and all of the other transducers paid off. These are extremely effective. They are very quiet but produce an amazing amount of force. They are connected to LFE signal only. I'm sure they would work great on a crossover bass signal as well, but I only wanted these to kick in when movies sent a specific LFE signal for effect. These really do take immersion to a whole new level without ever bringing attention to themselves once you get the levels dialed in. Amplify too much and they are obnoxious but fun to freak out an unsuspecting victim for the first time. To be clear, these are vibration inducers only and do not play sound, but do give you the illusion of very deep bass, much deeper than my subs could ever produce to effect my theater chairs like these do. If you have an older amp sitting around like I did, give these a try and you will be quite surprised by how much more immersive they can make explosions, gun shots, punches, and the like really come alive.

This will increase your immersion on a movie as much as a subwoofer. Instead of buying a second bigger subwoofer to get deep bass. I bought two of these and bolted them onto my couch. These supplemented my existing 12 inch subwoofer to make unmatched experience. I get amazing bass experience especially at low volume levels. Plus, two of these and an amp are significantly cheaper than the monster subs i was looking at

At first I considered 'Buttkicker' brand until I read about this (Earthquake) transducer. It was the most expensive brand I found, but it's such an awesome product I didn't mind the extra cost. I installed this on my racing SIM chair underneath and I'm using a 200w basic, inexpensive mono subwoofer amp to power it. This transducer will handle a stronger power amp and it will vibrate the fillings from your teeth if you max it out. They aren't kidding about how strong these are.I wasn't looking for max bass shaking, just enough to make the SIM feel like a real car. I used it for hours and it doesn't even get warm (a very good thing). The amp gets slightly warm, but that's normal.This product fully meets my expectations. It would literally feel like a real earthquake with more than one and a more powerful amp. I like this much better than the subwoofer I removed. I'm not trying to go deaf. Someday I'll add a few of these to my home theater.

FINAL UPDATE: I am returning all of these. After trying 3 times to get one that doesn't fail and rattle after a few days of use I have been unsuccessful in my attempts. I ordered a buttkicker LFE to replace both of these units. I would not recommend any of the earthquake products as from my experience they appear to be cheaply made and will not hold up to very minimal use. I only ran 250 watts to these and had my crossover cutoff at 50hz. After about 10 hours of use they failed and rattled like crazy.NO THANKS EARTHQUAKE!UPDATE: I used Amazons A to Z guarantee return system to get a new bass shaker and 4 days later this one has started rattling as well. I am going to try one more time before I ultimately return everything.UPDATE: 2 days later one of them has started rattling really bad. I tried to send earthquake a message on their website but their captcha is broken so the message can't be sent. I'm out 166 bucks since I am unable to contact them for a warranty claim. These are supposed to have a 5 year warranty. The rattling is so loud...Before purchasing a pair of these to mount directly to the frame rails (that had existing holes that matched up to the mounting plates on the MQB-1s) I couldn't believe the reviews did not mention what amp they are using to drive them.I had to go out on a limb and was pleasantly surprised that a Fosi audio TB10D 600w dual channel mini amp was able to drive them. In your receiver settings you will have to "line drive" or increase the LFE signal channel on the rca line but once you do that you will most likely have to turn down the fosi amp to a more reasonable level as it gets quite obnoxious. I am running each shaker on its own separate channel on the amp at 8 ohms. If these were 4 ohms each they might hit even harder which is above and beyond anything you would expect from these tiny lightweight devices.Watching EDM concerts like Gorgon City, HVOB, Rufus Du Sol, Jan Blomqvist, Ben Bohmer and many others combined with these tactile transducers really brings the music to life. I have an 18" DVC sub that runs at 1000 watts that does not even come close to how much "feeling" you can get from the music using these.Movies are brought to a whole new level of depth. It feels like you are right there with them. Try watching the new top gun and tell me you don't get chills during the fight scenes with these...Do yourself a favor and skip the el cheapo 50 or 100 watt versions of these and get the real deal today.

Good kick but price is about a hundred bucks too much.