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GRS 8PF-8 8" Paper Cone Foam Surround Woofer
Please indicate the Mms and Cms. Thanks.
Mms for this driver is 25 grams, Cms is 0.391 mm/N.
Date published: 2015-05-12
Need 4 ohm load in an OB project. Would 2 of these work paralleled to get my desired load? Tweeter offset between the two. Desired range is about 80Hz -- 5K. The 4ohm Goldwood doesn't seem to be reviewed with quite the enthusiasm.
These will work well OB down to 80 Hz, although 5k is a stretch for any 8" woofer. I would recommend using a tweeter that can cross lower (maybe 1,800-2kHz), or adding a midrange.
Date published: 2015-02-18
are the grs-8PF-8 8 inch speakers good for a small pa speaker replacement
Probably not. PA and musical instrument speakers have a higher SPL rating than home audio speakers such as the GRS. This means that it will not play nearly as loud as the original speaker, possibly making the high frequency speaker sound over-bearing. Not what you want! Go with a pro-audio type woofer.
Date published: 2014-06-03
How would this woofer perform as mid duty? I have a 12" goldwood woofer that I was planning on using for the lows and I have a few of these sitting around and was wondering if they would work.
Usually an 8" speaker will only play conservatively up to about 2,000 Hz before it starts to beam. If you pick a tweeter that will safely cross this low it should not be a problem.
Date published: 2014-01-28
Would these work in an open baffle situation? The q values tell me it would, and Im not very concerned with the Xmax because they'll be used with a bandpass
Yes these will work for an open baffle application.
Date published: 2014-01-17
Could these work in a 2-way system
I would like to build some budget speakers for my garage and I was wondering if these would work in a woofer/tweeter type system, if so, what would be the x-over point for the tweeter?
These could work as a two way assuming your tweeter can cross over low enough. I cannot recommend a crossover point without knowing which tweeter you plan on using.
Date published: 2013-10-29