Question about resitances in inductors.

[numberoneoppa]

I am shopping for some Inductors right now and cannot find exactly what I need. The kit is Brian Powers's North Seas.



According to the schematic, I need:
Two 1.8mH / 1ohm inductors
Two .15mH / .23ohm inductors

This is what I've found:
1.8mH - 0.47ohms DCR
0.15mH - 0.10 ohms DCR

Can I add resistors in series to make up for the lack of resistance in the schematic or is this trivial?

Thanks!

ps: If you have any cheaper recommendations, I'm happy to hear those, too!

[Curt C]

I'm sure Brian has the definitive answer, but it looks to me like air core Jantzens should work: 18 ga for the 1.8 mH, and the Jantzen 20 ga for the .15 mH.
0.74 and 0.23 ohms respectively, and available at PE.

C

[numberoneoppa]

Thanks a lot! I didn't look at PE, but I guess that takes a lot of the headache out. I'm going to pull the trigger on these now, and if I need to in the future, I can make changes if I get an answer from Brian (not building for another month).

[brianpowers27]

I used air core but you certainly could try it with iron core. The difference in resistance will affect the tweeter to woofer balance a little. You could adjust the series resistor from 2.7 ohms to a lower value depending on taste. It's likely I used 20 gauge inductors for the original spec. I likely guesstimated the resistance.

Keep in mind that you are building version 1 of the xo. Version 2 is posted below. I'm not going to do a diagram but the layout should be fairly straight forward.

http://techtalk.parts-express.com/showpost.php?p=1582066&postcount=10

[numberoneoppa]

Thanks for responding.

Actually, I saw version 2 last night about an hour after I ordered the parts for the first design. :P

I'll stick with v1, for now. In your listening, how does v2 stack up against it?

edit: Also, what are you using to drive the North Seas?