hello, i was wondering how you guys make phase plugs... i've been wanting to experiment with some on the parts express buyout drivers (4" full range) and need to know how to make them...i do have a laithe but i've never used it before...(its a part of the shopsmith i own)...
suggestions? is it something i can just buy cheaply somewhere?
thanks!
suggestions? is it something i can just buy cheaply somewhere?
thanks!
I have used the ends of curtain rods. You can buy them in home dipot or the like.
There are in metal and wood, I could not find sonical defference.
There are in metal and wood, I could not find sonical defference.
nifty
kewl! would you be ever so kind as to post some pics? what diameter are they? and how much do they cost in USD?
THANK YOU SO MUCH!
kewl! would you be ever so kind as to post some pics? what diameter are they? and how much do they cost in USD?
THANK YOU SO MUCH!
an idea...
i read that material doesn't really matter that much, but shape does...
i was thinking of carving one out of wood to the right size and spae then casting a mold of it and making them out of clear resin (very similar to epoxy)...would this work well? it seems that it would...
i read that material doesn't really matter that much, but shape does...
i was thinking of carving one out of wood to the right size and spae then casting a mold of it and making them out of clear resin (very similar to epoxy)...would this work well? it seems that it would...
anyone?
anyone want to give me some better answers? some cheap alternatives? i still think i'll go the mold rout since that wal i'll be able to make tons of em easily😎 and i can do spiffy things with em...
so...any ideas? i just need to construct one of em then i can make the mold...🙂
anyone want to give me some better answers? some cheap alternatives? i still think i'll go the mold rout since that wal i'll be able to make tons of em easily😎 and i can do spiffy things with em...
so...any ideas? i just need to construct one of em then i can make the mold...🙂
Try searching a bit. I know Timn8ter has made them for his speakers. Actually, someone else may have made them for him. Don't remember.
His were made of wood and cleverly used a pair of tiny steel screws in the bottom so the speaker magnet held it in place.
I don't know that you even need a lathe. You could probably make them using a drill as a makeshift lathe especially for a driver as small as that.
His were made of wood and cleverly used a pair of tiny steel screws in the bottom so the speaker magnet held it in place.
I don't know that you even need a lathe. You could probably make them using a drill as a makeshift lathe especially for a driver as small as that.
nerd of nerds said:
What is a phase plug?
What does it do?
Ideally, it is an object placed in front of your driver/speaker which interferes with the sound paths.
If you look at your speaker, you'll notice the potential for different sounds coming from different parts of the speaker 'driver' itself.
Different locations of the driver have different distances to travel to your ear.
The phase plug attempts to equalise the distances travelled.
This works great for horns or for single listening locations.
But it *could* make matters worse for other listening locations.
So, learn more about what you want your phasing plug to do 🙂
Re: Re: making a phase plug?
http://www.planet10-hifi.com/pp-info.html
more that a few posters to this forum can speak to the efficacy and quality of Dave's product.
myhrrhleine said:
http://www.planet10-hifi.com/pp-info.html
more that a few posters to this forum can speak to the efficacy and quality of Dave's product.
...or, as soon as you have found out which diameter you need, carry a caliper gauge with you wherever you go - you'll find dozens of shapes that might be worth testing.
Pit
Pit
Re: Re: making a phase plug?
The most important job of the phase plug is to fill the hole after you take off the dustcap... the secondary job is to help extend/disperse the HF if needed (like in a full-range) -- this last is where the shape plays a role. In a woofer often the best phase plug is made of thick wool felt.
You can play with almost anything that has suitable diameter for a phase plug ... ie SY sent me some transformers. He used a bunch of surplused neocork plastic wine bottle corks as packing. Add a pair of screws in each one and they make great budget phase plugs for drivers with 1" (or slightly less) VCs (i'm happy to send these off for cost of shipping). dowlling, lipstick caps, you name it can be repurposed.
dave
myhrrhleine said:
The most important job of the phase plug is to fill the hole after you take off the dustcap... the secondary job is to help extend/disperse the HF if needed (like in a full-range) -- this last is where the shape plays a role. In a woofer often the best phase plug is made of thick wool felt.
You can play with almost anything that has suitable diameter for a phase plug ... ie SY sent me some transformers. He used a bunch of surplused neocork plastic wine bottle corks as packing. Add a pair of screws in each one and they make great budget phase plugs for drivers with 1" (or slightly less) VCs (i'm happy to send these off for cost of shipping). dowlling, lipstick caps, you name it can be repurposed.
dave
When I was experimenting with different shapes for the phase plugs I designed to go with the Mangers I used blu-tac and held it in front of the driver with a bit of coat-hanger wire! It did the job while I took measurements. I never did make final ones from wood as I sold the Mangers but it showed a definitely improvement to the dispersion and it was easy enough to change the shape bit by bit until I got the best results I could.
Nerd of Nerds,
Since you already have the lathe,why not learn how to turn them,it is a very basic lathe project.With a little practice,you could turn them faster than you could mold them.
Do a google search for the American Association of Woodturners.There is probably a local chapter near you,where you could find someone to help to get you started.
There are lots of instructional books and videos on woodturning available if you can't find someone locally.
Since you already have the lathe,why not learn how to turn them,it is a very basic lathe project.With a little practice,you could turn them faster than you could mold them.
Do a google search for the American Association of Woodturners.There is probably a local chapter near you,where you could find someone to help to get you started.
There are lots of instructional books and videos on woodturning available if you can't find someone locally.
Quoting Dave "the secondary job is to help extend/disperse the HF if needed"
I also think it forms a horn - inside out. Much easier to shape a plug than an exponential horn to control the dispersion.
Regardless of how they work, they do.
Geoff
I also think it forms a horn - inside out. Much easier to shape a plug than an exponential horn to control the dispersion.
Regardless of how they work, they do.
Geoff
Can anyone tell me if there are disadvantages in using phase plugs in drivers that are mounted in sealed enclosures?
I fancy giving this a try on my mission 753's, however the mids are in sealed boxes. My worry is that the box will no longer be sealed. Will it be a problem, or is the gap too small to worry about?
Regards
Blair
I fancy giving this a try on my mission 753's, however the mids are in sealed boxes. My worry is that the box will no longer be sealed. Will it be a problem, or is the gap too small to worry about?
Regards
Blair
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