Simple L-pad question

[jtmusicva]

Hi.
I have a beginner's question regarding L-pad attenuator calculations.
When the calculator asks for the driver's impedance, do I give it the "nominal" impedance or the "DCR" of the driver?
Thanks...
JT

[mzisserson]

nominal.

[jtmusicva]

...for the answer (that's what I thought.)

[mzisserson]

Good luck!

FWIW I like the mills 5W-ers to use on tweeters. You can get them from Sonic Craft.