Dayton AudioTT25-8 Puck Tactile Transducer Mini Bass Shaker 8 Ohm

This was a very cheap way for me to add some depth to my home theater system. I moved my subwoofer to another stereo in the house because the fronts on my surround system can reach pretty low and I didn't think I'd miss it. But then I missed it. I could still hear a good amount of bass in general but some of the feel of it was gone. Movies and music got a little more remote. I don't care for a carnival ride of rumbling for every deep note in a movie or music but I like it to be hyper-realistic and immersive.I realized I had an old receiver sitting in a closet and I could run one of these bass shakers with it through the subwoofer out on my ht receiver. And it works great. For a while I had it bolted to the bottom of the couch. At times it just seems like the sounds you're hearing are also shaking the room and it really gives the impression of being louder without actually being louder. Immersive. Cool.But other times it's just a simple thing like a character closing a door and the thing wiggles your butt. Pretty distracting and dumb.So I attached it to a big plywood panel on a bar that is right behind the couch. The couch is pushed right up against the bar. So what happens is the plywood is acting as an exciter speaker to some degree and you can actually hear the bass the shaker is producing. And it shakes the couch in a more passive, subtle way that is very realistic. It was just lucky that I have this bar behind the couch and this works so well but the upshot is that I made my system sound better and feel better for only 16 bucks. And it was fun experimenting with different placements.Now I'm getting ideas for using a large, suspended panel of plywood to try to create a free-standing subwoofer in the room. Just for kicks.

Works great.

I bought two of these because I could never give my system a work out. I have always lived in pretty close proximity to others with paper thin walls. While my existing sound system only pushes 18watts to the sub-woofer these units solved the issues I had with cutting out the low end of my sound system so as not to disturb the neighbors and room mates.If you've done your research on these, or shakers in general, I can confirm the hype that they immensely improve your listening experience to movies music and gaming. They are not very big but they make a world of difference when listening to content with a vibrant soundscape in the low end. They aren't perfect but they are impressive for the price range.Technical and instillation-as you can see from the image these have pretty small leads, I belive its about 6”. they are also not very thick so putting to much stress on them could result in pulling the leads straight out of the houseing. Make sure you wire them correctly the first time or you could quickly run out of slack leads.These should also be considered low end pro units. The instructions that come with these are pretty sparing but they recommend that you drill out a hole in what ever surface you are mounting them to. While these units can be pretty robust and rugged if you don't heed the instructions on this point you risk damaging the shakers. Restricting the movement or burying your units will shorten their lifespan. While they don't get very hot- they do need airflow, while they are designed to shake the object they are mounted to- they do need their full range of motion when they are permanently mounted.I've seen people reviewing these on Youtube who just screwed them to the bottom of office chairs and I would not recommend that. While it would give you an extra kick for a while eventually the lack of range would either limit the output (audio range) or damage the units over time. Admittedly its not practical to get a hole saw and carve out divots in the bottom of an office chair it is practical to hit the hardware store and get a few pieces of scrap 2x6 to do the job and more than likely they'll be free.Furthermore, as has already been mentioned, the leads are pretty short and thin. When you install this to an object you should make sure to include adequate slack in your wires and possibly a quick release. I accomplished this by getting some RCA extension cables from GoodWill and just patching the sockets to the ends of my wires.Most consumer sound systems do not support external sub-woofers. If you have a decent 2.1 or higher system then these will work fine for you. The important part is to be aware of the resistance of both the shakers you are installing and the resistance of your existing driver (listed here in Ohms, this product specifically 8ohm). My system has a 4ohm driver so I had to wire my units in parallel so they would work correctly. If you do not respect this you could damage either the shakers or your sound system.You could hypotheticaly still use your driver along side your shakers but expect a performance ding from doing so. In much the same way as you can wire an 8ohm 10watt speaker to a 4ohm 4watt channel you will get much quieter audio because of differences in voltage and resistance.I would also recommend taking the time to wire up your shakers “non-permanently” with some sort of quick release. I used my Goodwill connectors to route the lines to my sub-woofer outside my speaker box so I could chose either my shakers or my driver at any given time. If you have the experience or the time you could create a circuit that toggles between your inbuilt driver or your shakers but I opted for the manual approach.The TL;DR of this review is that I am very impressed with these little pucks. They are quite small and very much worth the money. I opted for 2, not that I had much choice knowing the specs of my sound system, and they are very affordable. I did the research on these units, and while instillation instructions where hard to find the rave reviews can be confirmed. They take a mediocre sound system and make it awesome. It changes a loud sound system that keeps your neighbors awake to a personal experience for you only. If you aren't afraid of wiring something up yourself I would highly recommend buying these!

These transducers are great! They add another dimension to my home theater and really make my subwoofer sound more powerful without shaking the whole house. I have one attached to each of the four chairs in my sectional. They have no low pass filtering, so they will produce whatever noise is thrown at them, albeit in very low quality for the higher tones. As a result, you need to use the subwoofer output from your receiver, or add a low pass filter before it gets to the device. The wires coming out of the transducer are somewhat thin and the leads are very short. Quality control can be hit-or-miss. I purchased 4, but had to send back 2 in the process. The defective ones made strange noises when driven with a low frequency sine wave, but only when placed vertically. Clearly something was loose inside. Amazon was painless in making the exchange.While seeming simple, they weren’t the easiest to set up. The first thing I noticed when I received one was that the instructions tell you to install it in the mounting bracket, separately purchased of course. I made my own mounts. Using 1 inch mdf, I cut out a circle with a hole saw for the base of the transducer. I cut an additional hole to allow the wires to move freely without being pinched. After mounting the transducer to the home-made plate, I mounted the plate to the base of each chair.I used crimp connectors to attach the wires to some standard speaker wire, which I then ran to the amp. The amp I used was the DROK Micro TDA7377 DC12V Digital Audio Power Amplifier. It’s very cheap and 35 watts/channel. It doesn’t come with a housing or power supply, but I figure that gives me more options. I simply mounted it to a board I had laying around and powered it with the Chanzon 12V 5A 60W AC DC Power Supply. Looking back, I probably would have gone with a 6A supply to cover the full power of the amp, but I don’t think I’ve ever maxed them out, and haven’t noticed any ill effects. When I expanded from 2 to 4 transducers, I added a second amp and power supply.Edit (10 month update): I have these transducers tuned so they hit at just the right time with the sub. If they are tuned too high, it feels unnatural. I've noticed that they seem to resonate stronger at a small frequency range (I haven't determined the exact frequency). It's possible that my chairs are the cause of the resonance, but my guess is the transducers. When you don't think about it, it's not an issue, but I would have liked a wider plateau in the frequency response.