Dayton RS-180's Shielded and Unshielded

[jmik26]

I have been wanting to build the the Modula MTM, Nat P, or the standard PE kit. The problem I got is PE is out of the shielded woofer version until may 8O . So I am weighing out some options.

Can the unshielded version be substituted in the Modula MTM or Nat P design?

PE does have the Dr. K kits without cabinets in stock. I could buy the kits and scrap the crossovers. Are the DR. K crossovers at that much of a disadvantage to the Modula or Nat P?

Any help would be greatly appreciated... Jeff

[Curt C]

PE has a spreadsheet posted on their forum you may find informative, as well as independent testing by Paul and opinions by others...

http://techtalk.parts-express.com/showthread.php?p=1717813#post1717813

I'll be doing some comparisons between the shielded and non shielded versions of the RS180 soon, -maybe today if time allows.

C

[jmik26]

Thanks Curt C for the link. Based on the data I would say it pretty darn close and worth a try... Jeff

[cjd]

I tested these a few months back in my WWMTM's (which have pretty finicky crossover work) and found the match to be excellent - well within tolerance for any single product line. Back to back measurements and listening.

C

[jmik26]

Awesome! Thanks for the confirmation cjd... Jeff

[Curt C]

I posted my RS180-8 non shielded measurements /comparisons over on PE.

http://techtalk.parts-express.com/showpost.php?p=1717978&postcount=14

Here's the modeled box sim of 2 shielded and 2 non shielded drivers in the same vented enclosure and tuning: Well within tolerances of the same driver, let alone S and NS.

[Stian-]

The problem I got is PE is out of the shielded woofer version until may 8O . So I am weighing out some options.

Are this confirmed information from PE? Will the shielded drivers be back in may?
I thought they where out of production like forever

[jmik26]

Thanks again Kurt C, you are the man! Stian- if you go to the PE web site it will say it right on the page... Jeff

[cjd]

It's always reassuring to see Curt end up with the same results I did.