Quote:
Mongrel714 wrote:
 Ahhh, Test time!!!  lol, I always admit when someone is right! and Steve you are the winner here, I will indeed need 8" legs on this enclosure, at low freq/high output, it sounds like there are two large marsupials (Sp??) wrestling under my enclosure, extreme chuffing!
" but while revisiting The Shire and Andor yesterday, the ultra low freqs in that movie caused my driver to hit max excursion (I think) the noise was a poping, "very loud "
"There are some equality issues that need to be addressed, there is a peak at around 60 Hz that is noticably louder and of course some freqs lower down need boosting"
"short of a Metallica concert in Charlotte NC arena"
"Island, I ended up with a two layer baffle, and did'nt put in all the braces I drew on my last detail"
" I'm not sure if the angle of the baffle is greatly affecting the sound, what should I look for here?"
"I can't feel any vibration on the sides of the enclosure at all when I lay hands on it (resonating?), I do feel it on the top baffle allthough it is minor."
"The port output will be hard to judge untill I exterminate the furry creatures "
"Thats about it for now, I'm very happy so far, I can't wait to hear the results with a BFD in the chain, it's like trying to drive a high horse power vehicle with the steering gear from a Pinto."
Oh yes, Island, if you haven't yet, check out my mains design on the last pages of my mains design thread in DIY speakers, let me know what you think, heheh, its time to wake my son, (read shake him out of bed!!)   :raped:    later all. |
:raped: LOL! I just looked at your "Mains" thread . . . . Wow! I commented there.
You could test for ground clearance as the cause of CHUFFING by laying cabinet on it's side.
As you "break-in" the driver please be carfeul about bottoming the voice coil, they are fragile and so is the glued joint between voice coil and cone. I've broken several subs at that critical joint.
Room acoustics are evidently playing a part of the sub's overall FQ ,frequency response. It'll take you some time to figure that one out. It looks like you have that one corner for your choice of placement so that leaves you with room shape and/or furniture placement for physical change and then an equalizer to do it electronically.
Your speaker baffle may improve with a third layer of MDF maybe not. How bout the bottom baffle, with the vent? How's that performing? With all that power and that huge speaker, anything can go wrong and will, just ask anyone in Minneapolis.
Be advised with that BFD statement you tread on thin ice buddy . . . . . I still DRIVE my 79 PINTO station wagon here in Texas and the AM radio and stock speakers get me where I want to go. YeeHaa!
Since you started your projects mine have idled, your's are much more fun than mine.