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GRS 15PF-8 15" Paper Cone Foam Surround Woofer
what is the weight of the magnet on the GRS 15?
It would be nice to see that information on all the grs series woofers
Unknown, but from the looks of it maybe around 40oz.
Date published: 2011-12-05
how big should a box for 2 of these be?
sealed or ported
This woofer has high Qts and Vas values, requiring a large sealed enclosure. Ported enclosures aren't recommended.I would recommend a box around 5 cubic feet if two of these are to be used together.
Date published: 2011-10-07
What's value of BL and SD of this driver?
I can't help with BL, sorry about that. But the sd is roughly 115.5 square inches.
Date published: 2011-10-07
With the high Q values of these GRS drivers will they work well in an open back dipole configuration? Between 12" or 15" is there one that would be better than the others?
Any driver with a Qts above .5 will work fine for an OB application. Usually the more cone surface area the better for this.
Date published: 2014-02-14
i want to use this for the house how would i hook that up?
i really want to use one of these because it has really low freq
This is a raw low frequency driver. It is designed to be mounted in a speaker cabinet, in conjunction with other drivers to cover the mid and high frequencies. It can be used as a replacement for existing systems, or in a new system of your own design. A 2-way system would comprise this woofer with a tweeter to reproduce high frequencies; a 3-way system would have a woofer, midrange, and tweeter. In order to separate the frequencies and send them to the appropriate drivers, a crossover network would be implemented.
Date published: 2014-01-03
new build question 292-415
i would like to put 2 of these per speaker that im building. can i use them both on your 260-156 crossover and will they still stay 8 ohm??? on a cabinet 48"h x 24"w x 18" d would they sound better ported or not and what is the break in on these. thanks for the help
The DA 260-156 crossover is designed for 4 or 8 ohm woofers. Your wiring should be to parallel the pair for 4 ohms. And your overall impedence will be 8 ohms.Your box size and design will determine port use as well as your desired sound characteristics. Ports give deeper lows, but less punch. You can design either way.Because the speakers are paper cone they have a minimum break in time. Perhaps only a couple of hours, depending on how hard you push them. I always play a woofer with full range 50% power for about an hour before I install it.
Date published: 2013-01-04