DIY Flat Panel Speaker Love

[Unbiasedsound]

Fine tuned my panels and now they sound even better. I bet if Kornbread heard my panels I could make him a believer again. LOL

[Unbiasedsound]

thank you, what about a wood panel? Also, I was reading about bracing the exciter to the panel, would you have a picture to share about that?
Thanks so much for your help and advise. Giorgio

Most of those techniques should work on the wood panel as well.

[bradley.s]

You can tune like this. Buy materials from the store. If you aren't happy with the materials return them and try something else. When you're happy make it permanent.

[giorgioPETALK]

thank you, what about a wood panel? Also, I was reading about bracing the exciter to the panel, would you have a picture to share about that?
Thanks so much for your help and advise. Giorgio

[Unbiasedsound]

You cant tune a panel but you can tune a fish. LMAO

[giorgioPETALK]

in regard to tuning the DML panels how would you do it? thanks
g

[Zene]

Brew... I want to try the Tectonic TEBM35C10-4 first; no good reason other than flat to 20k.
Will be either a 3 or 4 way. All other exciters will be Dayton DAEX25'S. Good to about 8 -10k for crossing to BMR. Not concerned about hearing above that (old), just want to keep any high freq distortion from the 25's. I'm a firm beliver in eliminating as much dopler distortion as possible.
Only changing panels' size and materials.
OB woofer (Klipsch 15). Active 4 way crossover for versitility. No high spl output needed. NO eq ever, never, nada. Stuborn and old school. A lot of times it's the room, not the speaker.
On 3 or 4, will try to do 3 first; If not satisfactory can do one larger panel and one small. Still using the 25's for both. Means the crossover point should be flawless.
Keep posting progress. Some of us need all the input possible as you can tell by the # of posters we are a dying breed. I was hoping to spark some opposition from the dyed in the wool full range guys. Pushing any speaker to it's limits is not the answer.
Heed Unb...'s panel recommendations (post #1179).

[Unbiasedsound]

Thanks for the EPS supplier link, Unbiased. I talked with a foam manufacturer who has Type IV EPS 1.8 lbs/cubic foot, which is equivalent to the 30 grams/liter for the ultra dense on the UK website. This manufacturer also makes Type XV which is 3 lbs/cubic foot. Do you think that even the higher density as that would be better still? I am going to make a hot wire cutter to make whatever thickness I need. I also asked him about aged EPS, which is used on EIFS stucco. It is aged for 6 weeks, so it can finish outgassing, to minimize shrinking. This would likely be best to do with our DML's before sealing them.

I don't really worry about the aging as by the time the EPS is made and ships to my door step its almost close to 6 weeks. lol

[Brewster56]

Unb ... now you're talking my language moving off the beaten path. Can't wait for results and pics. My 4 way is moving slowly (very). Oddly is almost opposite; cone bass, DML upper bass, DML mid and BMR tweeter.

Zene, What BMR tweeter are you planning on using? Will you be running it full range or cross it over at what frequency? I am running 19 x 32" x 1 EXP 150 from 300 hz and up, with ob cone bass below 300. I want some direct sound (a little more presence) and better highs, without needing so much EQ, from another driver - thinking a BMR would blend well.Thanks.

[Brewster56]

Thanks for the EPS supplier link, Unbiased. I talked with a foam manufacturer who has Type IV EPS 1.8 lbs/cubic foot, which is equivalent to the 30 grams/liter for the ultra dense on the UK website. This manufacturer also makes Type XV which is 3 lbs/cubic foot. Do you think that even the higher density as that would be better still? I am going to make a hot wire cutter to make whatever thickness I need. I also asked him about aged EPS, which is used on EIFS stucco. It is aged for 6 weeks, so it can finish outgassing, to minimize shrinking. This would likely be best to do with our DML's before sealing them.

[Unbiasedsound]

Based on some other comments in other threads, it seems if you try to edit your post twice it thinks it is Spam and basically disappears. (I don't know if you tried editing it, but that is one possibility.)

Ah I see, yea I did edit my post twice so that's probably what happened, thanks a4eaudio....At first I thought someone was flagging my post intentionally but I see my post (1179) that was deleted back up again.

[a4eaudio]

WTF??? I hope that was an error as it said my post was marked and flagged as spam? If so I wont be giving out advice on this subject/topic.

Based on some other comments in other threads, it seems if you try to edit your post twice it thinks it is Spam and basically disappears. (I don't know if you tried editing it, but that is one possibility.)

[bradley.s]

Has anyone tried to build a DML subwoofer with the bass shaker? https://www.parts-express.com/dayton...watts--295-244

Probably have to do it like a down firing subwoofer.

[Unbiasedsound]

WTF??? I hope that was an error as it said my post was marked and flagged as spam? If so I wont be giving out advice on this subject/topic.

[Unbiasedsound]

Best size and thickness is what ever you want it to be.