Hi, I'm playing with diy phase plugs for small speakers, I was wondering what will they do on very small speakers like 2 inch .
modifying a pair of 2 inch speakers from dust cap to " phase plug " improve the high end ? for such a small cone removing the dust cap that ( I think acts as a cone as well ) will reduce the size of the cone -> reducing the speaker's sensibility ?.
I did this on 3 inch full range drivers, it improved the mid-highs , highs and made it sound better, significantly. ( bass would be a problem because some air will escape the voice coil gap. Tho there is a spider and no magnet vent.
It can be made out of wood pretty easily, I made them from this hard foam rod,
Ignore the shitty encolsure , I had time to waste with this and a passive radiator , sounds better than it looks 🙂 .
- Bruno.
modifying a pair of 2 inch speakers from dust cap to " phase plug " improve the high end ? for such a small cone removing the dust cap that ( I think acts as a cone as well ) will reduce the size of the cone -> reducing the speaker's sensibility ?.
I did this on 3 inch full range drivers, it improved the mid-highs , highs and made it sound better, significantly. ( bass would be a problem because some air will escape the voice coil gap. Tho there is a spider and no magnet vent.
It can be made out of wood pretty easily, I made them from this hard foam rod,
Ignore the shitty encolsure , I had time to waste with this and a passive radiator , sounds better than it looks 🙂 .
- Bruno.
Attachments
Some examples (all in thousands of these out there):
40-1197/FE103/108
http://www.planet10-hifi.com/downloads/FE108eS-PhasePlug-plan.pdf
http://www.planet10-hifi.com/downloads/FE108-PhasePlug-2.STL
40-1354/FE16x (a bit bigger for Burros):
http://www.planet10-hifi.com/downloads/FE16x-PhasePlugs.pdf
http://www.planet10-hifi.com/downloads/FE16x-Phase-Plug.STL
B200 (also FA22)
http://www.planet10-hifi.com/downloads/B200-phase-plug.pdf
FE20x:
http://www.planet10-hifi.com/downloads/FE20x-phaseplug.pdf
Most smakll drivers i now avoid phase plugs. So the first one is for when the dustup is beyond recovery.
I have yet to find a whizzer cone driver that doesn’t benefit.
We started out using a collection of lipstick caps and the 40-1197. We were trying to kill an annoying voice-resonance. We succeeded. Later using EnABL on the cap worked better.
dave
40-1197/FE103/108
http://www.planet10-hifi.com/downloads/FE108eS-PhasePlug-plan.pdf
http://www.planet10-hifi.com/downloads/FE108-PhasePlug-2.STL
40-1354/FE16x (a bit bigger for Burros):
http://www.planet10-hifi.com/downloads/FE16x-PhasePlugs.pdf
http://www.planet10-hifi.com/downloads/FE16x-Phase-Plug.STL
B200 (also FA22)
http://www.planet10-hifi.com/downloads/B200-phase-plug.pdf
FE20x:
http://www.planet10-hifi.com/downloads/FE20x-phaseplug.pdf
Most smakll drivers i now avoid phase plugs. So the first one is for when the dustup is beyond recovery.
I have yet to find a whizzer cone driver that doesn’t benefit.
We started out using a collection of lipstick caps and the 40-1197. We were trying to kill an annoying voice-resonance. We succeeded. Later using EnABL on the cap worked better.
dave
There are plastic and wooden nosecones for model rockets that come in similar dimensions, 3/4, 1, 1 1/8, 1 1/2 and 2 inches. They come in various shapes too from almost rounded to very pointy. You can fill them with clay and stick them on a pole piece. They were made for this kind of experimenting.