Flex Your PCD Mettle:

[stgdz]

Re: Flex Your PCD Mettle:

So I seem to have run into a problem with my econo wave mutant 10e surround.


I substituted the dayton 10 pro woofer for the 10e and used the 152i waveguide instead of the round one.


I got around to measuring it because I just wasn't hearing a midrange with them. Turns out I was rite
Woofer

Both combined

Note this is in my basement and using a rat shack meter but it got some decent results.

So the upper range looks fine and rolls off around 2k but the woofer looks like it rolls off around 300. I used the same crossover as the 10e, any idea why its not crossing at 2k on the woofer?

[phred593]

Re: EconoWave Crossover in PCD:

Model the highpass as 4th order:

1) C9 & L9 are the core filter,
2) C10 is 1000 uF; lower that to something real for true 3rd order, if required,
3) L10 is 0 mH, E-Wave's R2 goes into its DCR as R14
4) In series after the HP filter gets E-Wave's C1, R1 as "Parallel RC Contour Filter" C11, R15,
5) The L-pad at 1:00 is already in the HF driver.frd.

Thus, the full range of Wayne Parham's crossover topology may be modeled in PCD. Make the lowpass 3rd order, if required, add a Zobel, damping resistor in series with C2, whatever is desired.

I think Pete uses a different approach, but that's how I do it....

Thank you very much Zilch!

[bwaslo]

Re: Flex Your PCD Mettle:

I have some inside connections. They have a sample of the waveguide in hand (from me), and are looking into the possibility of sourcing the waveguides directly from QSC. No word yet on whether that will work.

[Zilch]

Re: Flex Your PCD Mettle:

I have inquired, but do not have a direct communication path to whoever's doing it there....

[stgdz]

Re: Flex Your PCD Mettle:

any progress made on the 152 waveguide and parts express?