And about the Z, their tiny difference on Zaph's plots may be just a sampling variation. The Re of P18 measured by Zaph is 5.9 Ohms and the Re of CA18 is 6.0 Ohms; but on the Sea's table, now the P18 has Re of 6.1 Ohms and the CA18 has Re of 5.8 Ohms. And as I said, their voice coil inductances are virtually the same (1.18 mH vs 1.2 mH). But again the old spec sheet of the CA18 on Madisound tells it's 1.1 mH. Looks like we only see unit to unit variations of the same driver.
post #31 of 62
5/31/07 at 11:39am