have you thought of series connecting a couple of lower value off the shelf units?
Or winding your own - an inductor is pretty straight forward to wind - though you might get RSI doing one this big...
Or winding your own - an inductor is pretty straight forward to wind - though you might get RSI doing one this big...
Answer Q with Q....
Why do you want a value so large?
For a TB solution, this will yield a 6dB LP filter at 28hz for a 4 ohm driver (56 Hz for 8 ohm), but also make the FR around resonance Spike very largely to the point of this being a futile endeavor.
I recommend if you are trying to xover that low to use an active xover instead, as it will likely be a cheaper method as well as being more effective.
Later,
Wolf
Not shocked.
RLC impedance compensation ? For example 34Hz (22mH 1000uF), can improve a lot low impedance but it is rare.
See this example : PRELUDE
Look Prelude Tweaks
In Europe it is easy to find this value at low cost.
Rgds.
If you want the 22mH for sure contact ERSE.I am sure they will make one for ya as they offer 20mH in a few different core configurations.
If you have inductance measuring capability, you can save money and make your own from two series connected 6mH iron core inductors placed end to end.
More details in Attachment #1 & #2 here:
http://www.diyaudio.com/forums/multi-way/97043-elsinore-project-thread-114.html#post3003602
I suspect this is based on a lack of understanding of how a bass reflex box works,
what kind of improvements are claimed, & do those 'many people' have measurements to back them up?
FWIW, the best way to improve the PMS is to redesign the box so the internal volume is big enough for the woofer, in the existing design it's too small....
what kind of improvements are claimed, & do those 'many people' have measurements to back them up?
FWIW, the best way to improve the PMS is to redesign the box so the internal volume is big enough for the woofer, in the existing design it's too small....
So I have another question then: is it possible to order cabs or better plywood/mdf cut to sizes for a reasonable price?
ERSE - Super Q
..out of stock, but then again they aren't "middle-men" - so they will wind it sometime after it's ordered.
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Just an idea with ERSE.I always order up and check them myself.
Not sure if PE sells the same but all the 12mH SUPER Q I ordered from PE for my HT3 speakers I had to return them.They all measured 10.2-10.8mH. So from that point I ordered one up and unwound them myself.
If you order from ERSE ask them to make sure they are 22mH.
Not sure if PE sells the same but all the 12mH SUPER Q I ordered from PE for my HT3 speakers I had to return them.They all measured 10.2-10.8mH. So from that point I ordered one up and unwound them myself.
If you order from ERSE ask them to make sure they are 22mH.
Found some In UK. They look cheaper than from PE or Madisound:
A71 Aronit-core wire Ø 0.71 - Hifi Collective
Anything about cabs?
A71 Aronit-core wire Ø 0.71 - Hifi Collective
Anything about cabs?
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