DML Speakers MK2
Designer:
geoff hooker
Project Category:
Freestyle Speakers
Project Level:
Beginner
Project Time:
1-8 Hours
Project Cost:
Under $100
Project Description:
DML SPEAKERS MK2
Design Goals:
these are an improved version over my previous speakers using a carbon fiber plate behind the driver to improve frequency response and sound quality without the need for equalization.
Driver Selection:
These use the Dayton audio DAEX25FHE-4 transducers
Enclosure Design:
The drivers are superglued onto 100x100x 2mm thick carbon fiber squares which you can get from ebay or aliexpress and attached onto 5mm thick 20×30 inch foamboard sheets using 3m plastic screws and nuts do not glue the carbon fiber to the board. I used plastic washers made from toy boardgame discs to stop the foamboard from crushing.
Enclosure Assembly:
The panels need stands to hand them on- I used string glued on the back of the panel hung on hooks
Crossover Design:
I found carbon fiber excellent since it is very light and does not flex lthis is needed for dispersing the sound over the panel.
Tips & Tricks:
you can cut carbon fiber with a hacksaw if you cant get the right size boards.
Conclusion:
These sound excellent and are a big improvement over my previous design and can be made easily for low cost.
About the Designer:
I have been experimenting with DML speakers for months. I am a keen audio DIYER.
Project Parts List:
|
Part # |
Description |
Qty |
|
295-224 |
Dayton Audio DAEX25FHE-4 Framed High Efficiency 25mm Exciter 24W 4 Ohm |
1 |
Very interesting project! Have you experimented with different location of exciters on panels? Carbon fiber is nice touch, so strong and light and cheaper now. I want to try something like this with cool patterns or art work on front.
Hi I have experimented with different positions of the driver and found that the best sound is to fix them just slightly off center about 30-40mm . I have tried different materials to mount the drivers on and carbon fiber works best. I hope you will try these.
Thanks for sharing your project! I have a couple of Dayton DAEX32U-4 Ultras (32mm/40w/4 Ohm) lying around and I might try this. Are you able to share some more details about the type of foam board you used? And just confirming – you didn’t sand/treat/alter the foam board in any way? Thanks!