Dayton AudioDAEX32U-4 Ultra 32mm Exciter 20W 4 Ohm

Really cool sub love it.

Tons of potential, and I really want to love these exciters, but 3 of the 4 exciters broke. Within a few minutes of use the voice controls broke loose and all they do is make a buzzy mess of a noise.

These are great! WOrk like a dream and sound great. They're an upgrade to the 25W version I had. They give good sound quality and good power.

Its not just some number. Never had a problem with any Dayton exciters, bass shakers, or transducers

I purchased this from Parts Express to make a DML Flat Panel Speaker from polystyrene (look up the guide on Parts Express if you don't know what I'm talking about!). Paired it with Mini DSP to cross over to my sub at 200hz, and it sounds pretty amazing for a $5 chunk of plastic and a subwoofer. The sound these things produce (if you follow the aforementioned guide) is incredibly natural.I also tried attaching it to various objects in my house and found out that my dining room table, for example, makes a surprisingly good speaker. Lots of fun to play with and cool for experiments with kids.I paired it with an SMSL SA-36A Pro amp (because it has 20 watts per side @ 4ohm so perfect for powering 2 of these) and it's impressively loud. I'm also impressed with how well that amp works for such a cheap product. Dayton Audio also makes some amps that pair well with these exciters.I had heard that they were fragile but I haven't had any issues and I accidentally dropped one on my hardwoods when trying to install it. It makes me wonder if people are using large amps to drive these and blowing them on accident.Side note: why does my panel look so terrible? Because the build guide said to use ink. But in my wisdom I decided that mixing paint with my glue/water mixture would probably work. Right? Wrong. Learn from my mistakes, people. ;)

I bought 2 of these. One sounded nice for about 5 minutes then just turned into crackling noise, the other never made any sound other than crackling noise to begin with. I used a small amp so these were not overpowered at all. I cant return them since wires were already attached.100% failuure rate from a sample of 2 is pretty much a junk product from my standpoint.

The concept of exciters to place on inexpensive flat panels is revolutionary. As long as they work, these things are great. The problem is the reliability. Others have commented on these going bad or being bad out of the box. I would look for another manufacturer of something similar before I would commit to buying more.

I purchased 2 of these from parts express. The first issue happened right out of the box. I was checking which female spade would work on the connectors and with barely any pressure at all, the red terminal broke loose. I had to super glue it back together.Next, is the sound quality. I followed instructions using XPS foam for my panels. They stuck to the panels ok, but anything other than acoustic/voice oriented music causes a ton of buzzing. It seems the buzzing comes from its own case, meaning there isn’t really any way to stop it.I also have the flat pack 4 ohm exciters and they sound much better. No matter the music style, they don’t buzz.I would not recommend this particular model, but other exciters are great and are a lot of fun to experiment with.Good luck!