Suspension Flat Panel Speakers

[@phillipsparks9690]

Wonderful experiment, we ended up using springs instead of string or other ties to give total freedom to the foam and increased frequency range using 4 different density of foam. Now testing a second layer of sound absorption behind the foam and will enclose in an anechoic chamber to hear the front only without echo off walls. We have been trying several shapes, positions of the exciter on the shape to get thd best response range using a vibration, cymatic plate to see the wave forms on the shape so the

[@chadperkins8406]

I'm going to attempt an experiment with a suspended cube of structural foam. I believe the surface area and density are the key factors to frequency response with an excited panel or shape. More surface area relative to density seems to create a more bass-responsive experience. A material that is too dense lends itself to high frequencies, so the structural foam has a much less dense internal matrix, but still the stiffness to resonate well. Nothing will beat a subwoofer for punch, but you could add a bass thump and rumble with a similar technology, a small heavy box with a bass driver mounted within.

[@chriscotton4207]

Any update?

[@gRosh08]

Uncle Remus said, Cool...thanks for sharing.

[@donalddluckerii3147]

That's really clever, and looks great

[@carlosmacmartin4205]

They look great! Space savers!

[@1nvertedReality]

Nice job! Would make great satellite speakers for entertainment center. Have you had them against a wall to see how they sound? Drywall maybe?

[@TypicalBenYT]

Really cool spin on DMLs!

[@allthewade]

You did a great job

[@sjhorton1184]

Might try some solid wire to make a run from the speaker terminals to almost connect to the transducer connections and use a 1/4" or so flexible stranded wire "jumper" to the driver so it stays out away but spaced nicely. See this other DIY video for what I am attempting to describe: kzbin.info/www/bejne/fJCmdZyvbZmsg9k

[@Heracles_FE]

Those are great . I have been researching how small you could make a DML speaker and still get good range . How well balanced do they sound ? Do they cover a full range , or are they mostly high range ?

[@mephistovonfaust]

You can clearly hear that they down go down very low. From the video I would guess 200Hz which is pretty much unusable.

[@V1ralB1ack]

There's a million things I could say but I'll just say this... if you could get full range from that do you think we'd all be using giant speakers in big cabinets?

[@Heracles_FE]

@@Matt-qn9yv Could you work out the minimal size to produce frequencies below 120 Hz . I would like to make a pair that would not need a sub . I know that different shapes and densities, as well as tensile strength contribute to the frequency range , and wonder if maybe something like a smaller but denser object could produce lower frequencies. Somethung like a solid cube of wood . Even if it was added as a third piece on the subs output to only produce lows , like a sub substitute.

[@Butternose]

@@V1ralB1ack you had a million things to say and that's the one you chose... Oh dear 😂😂

[@Butternose]

The best thing to do is get some exciters and have an experiment on what you have to hand. DML as a technology is quite funky and traditional speaker wisdom isn't always the best way to grapple with them. The panel does need to be of a size to support modes in the lower registers, but maybe not as big as most people think. To my mind this is for two reasons 1: the speed of sound is faster in solids 2: The panel doesn't exibit destructive interference between the front and rear faces in the normal way. DML speakers are a unique proposition that do some things very well and others not so much, for some people that makes them astonishing and others blasphemy.

[@brucekuehnle7742]

Who's the singer she's great

[@gooddogtrainingservices5351]

Pretty sweet.

[@frosted1030]

Is there no bass?? Also where did you get the terminals?

[@exweidaer]

Hi and many thanks for the videos around Loudspeakers Could you test how they sound directly on a wall (as a on-call Loudspeaker)? Thanks and greetings

[@chriscotton4207]

How's this compare to a decent Bluetooth speaker?

[@axelkusanagi4139]

Now make little tweeters to go along with them

[@yungchop6332]

I just randomly came across this video in my recommended stuff. Are there benefits to a speaker like this?

[@V1ralB1ack]

None. You might as well run a signal through an empty can of beans and you'll probably get some audio but that doesn't mean you should.

[@gooddogtrainingservices5351]

If done right they can sound phenomenal. Usual,y you need a bigger panel

[@9xqspx6]

@@V1ralB1ack Have you heard any DML speakers in real life, mate? Or are you just a regular audio snob?

[@notresolved8403]

Do you still sell these?

[@miriistina]

They look really cool! How much were you thinking of selling them for? 😊

[@ETheEntertainer]

You selling?

[@rdkater]

sounding thin more bass no suspension but a steel frame kzbin.info/www/bejne/nXm6enqnaNt8pa8