Svart
Well-known member
There have been a few threads about PZMs and their theory but it's time to get in depth here.
I bought some PZM parts in theblackmarket recently and got them working fairly well but have decided to build another set using a different method.
The PZMs I currently have are 1'x1' pieces of 1/4 acrylic, clear because we all know dyes throw off your sound..l :green:
but seriously, these are made with standard electret mic elements that face the acrylic. As I understand it, the proper way is to face the elements out FROM the acrylic and have a blocking/reflective surface a set distance out from the capsule.
Now, I have not been able to find what the proper distance the block over the capsule should be from the capsule itself, or from the acrylic sheet. I drilled a hole in the sheet that allows the placement of the electret capsule AT the same height as the acrylic. Most I have seen recess this slightly, and I wonder if there is a proper distance for this too.
I am using JFET based amps for the linkwitz modded capsules which are pana wm61s.
I roughed out a small bit of plastic for the block over the capsule and it works pretty good but I get a honky hype in the upper mids that is not there when the block is not there leading me to believe there is going to be a proper distance for it to be from the capsule/acrylic sheet.
Also I understand that acrylic has been deemed a good material for the sheet, moreso than wood or metal. Does this carry over to the block also? would a change in material of the block change the overall sound? I am going to eventually build a huge pair of sheets to hang for room mics once the details are hammered out.
many questions need to be discussed here!
:thumb:
I bought some PZM parts in theblackmarket recently and got them working fairly well but have decided to build another set using a different method.
The PZMs I currently have are 1'x1' pieces of 1/4 acrylic, clear because we all know dyes throw off your sound..l :green:
but seriously, these are made with standard electret mic elements that face the acrylic. As I understand it, the proper way is to face the elements out FROM the acrylic and have a blocking/reflective surface a set distance out from the capsule.
Now, I have not been able to find what the proper distance the block over the capsule should be from the capsule itself, or from the acrylic sheet. I drilled a hole in the sheet that allows the placement of the electret capsule AT the same height as the acrylic. Most I have seen recess this slightly, and I wonder if there is a proper distance for this too.
I am using JFET based amps for the linkwitz modded capsules which are pana wm61s.
I roughed out a small bit of plastic for the block over the capsule and it works pretty good but I get a honky hype in the upper mids that is not there when the block is not there leading me to believe there is going to be a proper distance for it to be from the capsule/acrylic sheet.
Also I understand that acrylic has been deemed a good material for the sheet, moreso than wood or metal. Does this carry over to the block also? would a change in material of the block change the overall sound? I am going to eventually build a huge pair of sheets to hang for room mics once the details are hammered out.
many questions need to be discussed here!
:thumb:
