Discussion in 'DIY' started by fraggler, Oct 13, 2016.
Does it come with a babelfish? Haha
I tried using the google translate app and it gives me nonsense. However the cut plans and dimensions are easy to understand.
I was all set to just make some Overnight Sensations, but I think I am going to up the budget a bit and make some Amigas. I found @Maxvla s thread over on Changstar and was wondering if anyone else has any experience with these.
Did you get these thrown together?
fraggler you should build some Statements II
Opened up the fe103s that I bought years ago and never opened. Seller totally borked me. There were some mark audio drivers in there.
Oh man, that's terrible.
Maybe I should be more specific as to how much I increased my budget
It's only 200+ pounds of MDF per side. A good first speaker project
Just a nugget of information - although the curves look sexy, they are arguably counterproductive for as back loaded horn per Planet_10:
"When i started i thot smooth horns were a good thing too -- a side effect of most of the info on horns being for FLHs. It is only since good software modelers have appeared, and numerous builds by many people of modern Olson/Nagaoka horns, has shown that smoothness in a BLH has been shown to not be a benefit to a BLH, something Olson did in the 50s and the Japanese have been doing for a long time."
In short the thinking is that right-angles function as a low-pass filter for the backwave, so smoothing them allow greater propagation of higher frequencies through the horn which ends up muddling the mid-range. The 180 deg turns in the smoothed versions do function somewhat it this way, so it's not a complete disaster but it is counterproductive.
Makes good sense when you think about it.
I can see that. Not in terms of right-angles but more like how speaker boxes have a lot of padding on inner surfaces to limit reflections. You want an exponential curve but you probably don't want the surface to be reflective. Sort of like why this speaker on Aliexpress has a patterned surface just behind the driver to limit reflections.
Well, from what I understand it is specifically about a low-pass filter effect - allowing low frequency through and restricting higher frequencies, not general reflection reduction. I'm guessing longer wavelengths will travel more easily around corners, through substances etc like radio waves, so ironically the harder you make it, the more you bias the horn towards allowing primarily LF through. Because it's less positional it messes with the sound imaging less, so you can accentuate those frequencies more freely.
Yowch, $3700 for an open baffle kit... http://shop.grantfidelity.com/pureaudioproject-trio15tb-neo-open-baffle-speakers-pair.html
Does anyone have any suggestions for favorite beginners guides on terminology and building crossovers/filters? I am going against commonly held opinions here and building a small subwoofer to use with my existing speakers. I want to make sure the subwoofer and speakers only play the frequencies I want. I have poked around the Parts express and AVS forums but don't know the communities there.
How about going with an electronic crossover and go active bi/tri-amping?
Ran across Visaton just now..they seem to have a boatload of kits available and we have a local rep here. Anyone heard of them or have experience?
seems like they have a lot of public speaker designs.. I don't see any forum with builds etc. maybe better for advanced builders
You gotta take a look into German diy forums for visaton projects.
A friend of mine had build the Alto I years ago with his dad for super cheap a few years ago and is super happy. They just sound nice, a bit warm but overall neutral. Mid-fi done very right.
lol, @LFF recommended me these speakers to build, did not know what I was getting myself into, it was worth it though, listen to them every day
Separate names with a comma.