Latest project.
Will be fitting a Fane 12-500.
Works up to 5KHz.
Will be fitting a Fane 12-500.
Works up to 5KHz.
An externally hosted image should be here but it was not working when we last tested it.
I have a Pyle tweeter box to go on top to boost the top end.
The folded horn should be good up to mids.
Datasheet says 45Hz to 4.5kHz and I bet it sux at that high frequency like most woofers do.
http://www.fane-international.com/downloads/Fane%20Sovereign%20Pro%2012500%20DS030513.pdf
I don't understand the enclosure photo in the first post, is there a diagram or something with the completed design?
http://www.fane-international.com/downloads/Fane%20Sovereign%20Pro%2012500%20DS030513.pdf
I don't understand the enclosure photo in the first post, is there a diagram or something with the completed design?
Its the 12-500LF not the 12-500.
It goes to 5KHz according to the pdf on it.
I just scribbled down a rough drawing of the half folded horn.
I got it from one on sale on ebay.
Hopefully my dimensions aren't too far wrong.
I will put up another picture when it has progressed a bit.
There are 3 panels missing from the op to fit yet.
You didn't say LF in the OP, here is that data sheet:
http://www.fane-international.com/downloads/Fane Sovereign 12500LF DS030513.pdf
The inductance they quote is 2.36 mH at 1kHz which will obviously effect the slew rate at higher voltages and frequencies. You can see in the frequency response chart that it drops off a cliff at 4KHz so the 5kHz claim is most likely a mistake, even at their +/- 6dB spec. (Manufacturers generally quote +/- 3dB for frequency response)
Most speakers have a realistic useful working range of around 2 octaves at decent power.
I will put the sig gen on it once it is built and see how it performs.
It will only be by ear though.
I was told a similar story about my full folded horn speakers but they work very well up to mids.
I can see the sound is going to be quite complex.
The sound comes out of the back of the driver into a cavity so there will be lots of reflections from the four holes in the back of the driver and the box.
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Painted the baffle black and temporarily bolted in speaker today.
I will remove the bolts and fit speaker clamps when they arrived.
The clamps with t-nuts and bolts will make the speaker easier to remove later.
I will remove the bolts and fit speaker clamps when they arrived.
The clamps with t-nuts and bolts will make the speaker easier to remove later.
An externally hosted image should be here but it was not working when we last tested it.
Got the side and top on now.
Add a sound deflector panel in the back.
Add a sound deflector panel in the back.
An externally hosted image should be here but it was not working when we last tested it.
Nigel,
The cabinet you built is a straight parabolic offset mid-bass horn, it has no folds.
One could reduce the amount of folds in a folded horn, but "Half folded" is like "half pregnant", not possible
.Art
Nigel,
The cabinet you built is a straight parabolic offset mid-bass horn, it has no folds.
One could reduce the amount of folds in a folded horn, but "Half folded" is like "half pregnant", not possible
Art
I think the half refers to only the bottom half of a full folded horn.
I hooked up a sig gen to the speaker.
It works fine up to a few hundred hertz around 400Hz.
It has a peak around 7KHz for some reason.
What is odd is it sounds ok with music.
The tops aren't too bad.
I will be using it with a dual tweeter so that should even things up a bit.
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