Dayton Audio DAEX25X4-4 Bullfrog Vented Disc Spider 25mm x 4 Exciter with 320mm Cable 40W 8 Ohm

The mids are over bearing but can be fixed with an EQ. I think I needed to use a much larger polystyrene sheet for this exciter. I paired it with a crown sli 1500. Full volume and no clipping detected. I do smell an electrical scent. I don't know if I've over powered the exciters or if it's just breaking in. It would be nice to know the max wattage of them.

I really liked these. I have known about these for many years and used audio exciters in the past. Having the quad driver in one small package is great. Understand you need to do your homework and choose what materials you want to make your speaker panels from. Different materials give you different sound quality. So don't be afraid to experiment. I use these for my home theater system and I like the sound I am getting. I would say my mates are really amazed at what I have achieved with a little bit of ingenuity. They are really amazed how little money I spent to achieve big theater sound in my home. Being creative and handy pays off.

I found a blog about building speakers out of insulation foam from Home Depot and coating them with watered down wood glue. I tried it out but these exciters when taped on weren't able to give me much sound above 8k. I did a bunch of reading and messing around with other materials and at the end I added more coats of glue to the project to stiffen up the surface and attached them with superglue. That fixed all my weak spots and I ended up with some really nice sounding speakers. Dayton Audio website has good information about where to attach these to a board and what kinds of materials sound best. I messed around with double sided tape on all kinds of material, but when I finally used glue to attach them I got some nice quality sound. I feel like the tape is kind of a waste of time. I would have preferred that they didn't have it. It would have given me bette results faster.

I was not sure what to expect from these but I was pleasantly surprised. I have yet to mount these but I am thinking they will sound pretty awesome. I tested them on foam board and sounds came out sounding good. I plan to mount these on resin ceiling tiles.

DIY SPEAKERS from TECH INGREDIANTS YOUTUBE Channel

I made a pair of speakers using two of these and some rigid foam panels from Lowe’s. They are amazingly good (when used with a powered subwoofer).

Like others, super easy to stick to a piece of pink foam insulation, and create a pretty amazing setup provided you have a subwoofer. I've dropped a few jaws when I fire these things up. I've spent 0 effort on finishing them. My panels are 2 ft x 3 ft, used the 1/3 rule. They are biased a bit high on treble with no noticeable sibilance. They blend into any room. They handle a reasonable amount of power. They image well, and do not seem to suffer too much from a limited sweet spot. If your on a budget and want some cool hi-fi speakers, give these a shot. Will they beat a $2000 set of martin Logan's? No. But you can have these and about $1900 of beer and barely tell the difference. My panels do need a fair amount of room though.

I bought two of these exciter and one to each 20" by 30" foam board panel. The double sided tape is holding them securely in place. I positioned them 1/3 the distance in from the side and bottom on each panel. I also made a base out of oak to keep them upright. They sound pretty good and I'm using them as rear speakers for surround sound.