euro series measurements

[ronw]

Anyone have measurements in LMS or Clio or any other manner for these two drivers? PE usually provides these in Clio format, why not on these?

[Chris Roemer]

> Anyone have measurements in LMS or Clio or
> any other manner for these two drivers? PE
> usually provides these in Clio format, why
> not on these?

If you Google "frd consortium", go get XOverSim and SPLTrace. Trace lets you display a response or impedance graph (.jpg or .pdf), take a "snapshot" of it (PrtScrn key on PC), and load it into the program. Then you can trace the curves yourself. You don't end up with any phase data is all, but XOverSim will calc in the impedance profiles while modelling your xo curves. I usually trace 6 samples/octave from 20 to 20,000 Hz, that's either 60 or 61 points.

[curt_c]

> Anyone have measurements in LMS or Clio or
> any other manner for these two drivers? PE
> usually provides these in Clio format, why
> not on these?

Some have speculated that the ES180 is a clone of the Usher 8945A, which is in itself very similar visually to the Scan Speak 18W8545. It might be interesting to note that even with the copper shorting ring, the ES180 has 3x the Le of the Usher. -Of course it is one third of the price of the Usher as well.

It is puzzling that PE does not list the ES180-8 on the Dayton speaker page, (but they do the ES28) and the spec sheet for this driver does not include the impedance plot. A minor oversite, I'm sure.

OTOH, the two Euro drivers are offered by PE together in kit form (302-920). You can look in the manual for the crossover utilized, which, by the way, appears to be a fairly elaborate design.

C