Comparing two old MCM woofers
I have a bunch of old drivers that I bought a while back. At the time I thought I was buying the shielded and unshielded versions of the same driver, but according the published specs they're more different that I thought. e.g. Fs and Zo are quite different.
These are the 2 drivers:
Sorry for the PDF's, but the text isn't copy and paste-able.
If I read the specs right (and if they're even close to accurate), the 55-1855 will have slightly better bass extension, but for the most part they should perform very similarly below 2 KHz.
I don't have a jig (or skills) to measure them so I'm hoping that someone could just have a quick look at the pdf's and give me a SWAG.
Looking at the sheets...you seem to be right
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