These work great for my vibroaucostic table.

After trying a butt kicker mini and being very disappointed with its performance (it can not in fact handle anywhere near 200 watts at 5hz) this step up was just what I was looking for. Can handle the lower hz more easily though it still bottoms out at around 100 watts at 10hz or so.

I just did a comprehensive test on BK transducers for a sim rig setup. I tested the Gamer 2, mini LFE, Advance, and full size LFE. The gamer and minis give good feedback and add a lot of immersion, and the LFE really puts out the low end, but these are by far my overall favorite for feedback. These just give more of everything than the minis, and the larger LFE actually struggled with providing detail over 50hz.I ended up going with these for a 4-corners setup, plus an LFE for filling out the low end. Nothing compares to the LFE at 45hz and under, it's like comparing an 8 inch subwoofer to an 18 inch one. These did have a 5db peak in the 55-60hz range on my rig, and removing it with eq made them so much better. I used quite a bit of eq evening out the low end below 30hz as well, but fixing that 55-60hz peak was a game changer.I'd highly recommend getting a miniDSP unit for the parametric eq, it's *very* worthwhile to smooth out frequency response. I got the 10x10 HD since I needed 5 outs, but a miniDSP 2x4 HD should work for a single or dual transducer setup and runs around $200. 100% worth it. I'm pretty sure you could use the digital ins to get a 4 channel setup working on the 2x4 HD as well since it has 4 analog outs, but am not sure on that. Their manuals are good so it should be easy to figure out.These are power-hungry. I needed to use class D amps since I only have a single 20AMP breaker feeding electricity to the room where they are installed, and ended up needing 500 watts RMS per channel to get the most out of them. I started with 350 watts and it wasn't enough for what I wanted out of them. I'm guessing you could get by with less power with a class AB amp though.Update: I had some important findings with mounts that are worth mentioning. I found a lot of advice online saying that a mount that has some flex adds efficiency, but found the complete opposite to be the case with an 80/20 rig. The firmer the better. I used 3/8” aluminum plate to mount these and 1” plate for the LFE. With a rock-solid mount I could really turn up the volume without clipping.I tried cantilevering one end of mounts to leave some flex as an experiment. It makes them bottom out at low volume and not perform well at all. Even with a firm mount some locations just didn’t work great. If the performance doesn’t impress, then make sure to experiment with mounting. Also make sure they are in a vertical orientation (so the top of the unit is either facing directly up or down). I’m convinced that most people who complain about these bottoming out and/or feeling underwhelming have them mounted incorrectly.One more update on integrating an LFE with these. Running the LFE in parallel led to some phase problems where it would cancel out the feedback at times. It was really inconsistent, sometimes ok and sometimes a problem. Running the LFE at half the frequency of the corners worked like a charm. So for example if tire slide was at 50hz on the corners and at 25hz on the LFE it made everything come together.

Great product and works as designed.I recommend sound isolation feet if direct mounting to a couch so the vibrations do not get absorbed by the floor (mine is carpeted). Getting the external mount from Buttkicker is also a good option and much easier to install depending on the direct mounting placement to the couch if available. If you get 2 or more of these.....you NEED to connect the speaker wires in SERIES configuration if using the recommended Dayton Audio SA1000 amp to drive them. I have such amp and the combination of the products is stellar!!

I went to my friend’s house and experienced the BK Advanced. I loved it so much that I started researching tactile transducers to see if there are other options that maybe cheaper and provide similar experience.My research started with the AuraSound AST-2B-4 Pro Bass Shaker, Reckhorn Bs-200 Bass Shaker, and Buttkicker (BK) Mini Tactile Transducers. I settled with the Reckhorn because it is twice the power of the AuraSound and it was the same price as the AuraSound. Also the Reckhorn was less than half the price of the BK Minis. I installed 2 Reckhorns on the bottom of my theater chairs. It was ok, but it wasn’t impressive. Then I ordered 2 BK Minis and did the same. I initially used a Crown XLS1000 Amp, but it did not do the trick. I ended up getting the ButtKicker BKA1000-N Power Amplifier and wired in the BK minis and Reckhorns. I had it for 1 week to test them out. Both transducers gave decent shakes, but it was nowhere close to the power of the Advanced. The Minis provided a more powerful shake when it hits the real low frequencies then the Reckhorn (shake only at low frequency), but the Reckhorn provided a more smoother shake transition from mid to low frequencies (shakes varies between frequencies). Neither one was comparable to by Friend's Advance experience. I ended up returning the Minis and went for the BK Advanced. They are a lot more powerful and provide a whole body shake compare to the Reckhorns and Minis, which provide more of a butt shake.If you are new to tactile transducers and want to try a good unit, I would recommend the Reckhorn because it is a good bang for the buck. BUT, if you have the money, and want the ultimate 4D experience, there is no doubt that the Advance BK4-4-4 is going to be the best. I have bought 2 and I plan to buy 2 more in the months to come.

This is my first review for Amazon. I purchased these because I upgraded the seating in my HT. I was previously using Bass Shaker Pro's for my seating. The old unit simply would not fit in the new chairs. The new seats were specifically designed to accommodate the BK4's. I have many years experience with tactile transducers. The BK4s do a fine job of transferring the LFE signal into earth shattering vibration. They were simple to install and fairly well documented. The only issue I have is the price. They are a lot more expensive than the Bass shakers I am replacing but I don't "feel" any difference. I do have 1 unit mounted in each chair. Perhaps they can produce higher levels than the Bass shakers but it is not needed for a single chair application. There comes a point where the effect is distracting from the movie experience rather than a cool addition.

I don't believe the specs on these things. Buttkickers in general seem to be picky with what amps are connected to them, regardless of power and sometimes bottom out. The auras I've tried have been flawless so far and easy to drive.P.s. Watch out for those restocking fees

It works as expected, but I wish I could crank it up to around 400W sustained without overheating protection kicking in.Bolted it to my IKEA Markus chair with a thin wooden board.I use it mostly for flight sims in VR, really adds a lot to the experience especially with software that works seperatly from the game's audio using the game's telemetry and allows you to customise the gain and sound file of each effect.I've used it for music with headphones as well and it does the job well enough for the low end.In flight sims it does overheat especially with sustained engine rpm effects and the like which takes around 10min wait for the transducer to be usable again with active cooling.It took me a while to find a compromise that works between setting the gain for certain effects and lowering my amp's gain to around 200W. With a fan it can be pushed higher.It is plenty powerful at around 200W, but I do love the tactile feedback at higher gains and wish I could push it higher without overheating after 30min of playtime.

this is my second device that is now combining with the other under my couch which is wired in series.Which now gives full range when they both work together. Its nice effect.Subs give airborne flow in the air while buttkicker gives the sense of feeling whats going to happen with very low frequencies. Its like someone is standing waiting for a train coming and your body is sensing with that emotion that its coming. I can see how these products came about ,with now theres motion code.But this product is a nice start for something opitional to have . Its worth buying.

Livraison très rapide et produit super dans la boite d'origine. Super vendeur !