Announcement

Collapse
No announcement yet.

DIY Flat Panel Speaker Love

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • rmeinke
    replied
    Originally posted by Shadetreehifi View Post
    As to the pink panther: louder for a given input and great transients, but I could never quite get over a slight background ringing in the human vocal range. Kind of like standing in a shower stall. The pink panther was three quarter thickness.
    Also I'm running these exciters with plenty of headroom. 225 watts per channel rms. The exciters are the Dayton thrusters.

    XPS can be made to sound good as well. Sounds like you may need more damping. I've preferred the Ultra on XPS as the more compliant suspension removes the background panel noise. Suspension plays a part as well naturally. Should have asked in my last post... how many exciters per panel??? I assumed a single exciter... but...

    Leave a comment:


  • rmeinke
    replied
    Originally posted by Shadetreehifi View Post
    Just a single data point here: I tried glue doped pink panther and eighth inch birch luan doped with minwax wood hardener. Panels are 2x6 feet. The luan panels sound great to my ears. The tonal balance is very similar to my acoustic research ar4x speakers, but with great transients and speed. The low end is augmented by a pair of ar1 woofers crossed at 120. The huge dispersion is a game changer for me. No more agonizing over the perfect stereo image sweet spot like with my Maggies. The high end seems to extend roughly to 16k or so, but then so does my hearing... My theory is that the balsa-like core of the luan, once stiffened by the minwax is a good medium for the mid and highs. The midrange is more natural to my ears than the Maggies. Great fun experimenting with these. This luan is the zero formaldehyde variety if that matters...
    Hello Sahdetreehifi!

    +1 on the Laun ply. I do like the sound of my old Baltic Birch panels but they are over damped in my opinion. However Luan, being lighter and more resilient offers a more lively sound and natural sound... not unfamiliar to how XPS is more damped compared to the lighter and more resilient EPS.

    Just curious, how are you suspending your panels? 2x6 is a large panel! :-)



    Leave a comment:


  • Shadetreehifi
    replied
    Originally posted by Unbiasedsound View Post

    225 watts rms???? I didnt think a 40watt rms exciter could handle that much power, unless you are utilizing more then one exciter?
    Not a problem, as long as one uses the volume knob within reason. I've never had them heat up, even at room-saturating levels. I'm using one exciter per panel.

    Leave a comment:


  • Gary.M
    replied
    In summary, I've been aiming for a panel that can go from about 200-300Hz on up, with an open baffle woofer filling in below. I may have what I want. Certainly a listen to this single bamboo panel was very impressive.


    Leave a comment:


  • Gary.M
    replied
    And if I use 10dB steps on the vertical axis (which I think is what we've been seeing in other posts on here)

    Click image for larger version

Name:	Bamboo Ply Panel Ponoko Cut RS Tectonic Exciter 2.5m 10dB steps.jpg
Views:	179
Size:	140.1 KB
ID:	1280747

    Leave a comment:

Working...
X