Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email firstname.lastname@example.org
for a prompt reply.
GRS 6PR-8 6-1/2" Poly Cone Rubber Surround Woofer
What is the best cabinet size for these woofers if one, or two, per cabinet are used?
Go to the speaker builder tab. Then to the WOOFER SELECTION GUIDE... from there you can scroll to your part number / woofer... It suggests both ported and sealed enclosures and tells the -3db down point for each design. The volume is based on 1 driver. So if you use 2, double the cabinet space or use two cabinets. If you use 2 in a ported enclosure - best to use multiple ports - easier to do than calculate a single larger one - and it might create a rushing noise anyway...
Date published: 2013-09-13
My truck has OEM separates in the doors and the woofers are blown. OEM is 6.5" 4 ohm powered by OEM amp, would these be a good replacement?
Typically, you would want to replace a 4Ω speaker with a 4Ω speaker, and the one in question here is an 8Ω model. I would suggest sticking with 4Ω impedance to maintain the proper balance in your system. I've included a few links below for your reference.
Date published: 2012-07-11
recommended inductor/cap values?
i have 2 of these per door( wired to 4 ohms) in my truck and would like to know what value inductor and capacitor to use to show them a somewhere around 3500HZ lowpass? @ 12 db per oct.i plan in using my head unit to high pass them.
Textbook values for a 3,500 Hz low pass crossover at 4 ohms would be a .25 mH inductor and 8 uF capacitor.
Date published: 2013-10-30
Would these be good replacement woofers for Paradigm Compact Monitor speakers?
Paradigm Compact Monitor Speakers measure 8-1/2" x 11-1/2" x 15-1/2". They are a ported design, with a 2" port that runs from the front of the cabinet to the back, only open in the front (11-1/2" long). They had 6 ohm Vifa tweeters and their own 6 ohm 6-1/2" woofers. I had also planned on using the existing stock crossover as it is with just replacing the electrolytic 6.8 mF cap with a poly cap. Is this going to be a problem getting good sound this way? This PE woofer and the replacement tweeters are both 8 ohm drivers. I already have the tweeters so I'd like to use them. They are rated at 60 watts.
In a ported cabinet like that you would be better off using something like the Dayton DC160-8 which is below. If you wanted, you could seal up the port and use the GRS as it works better in a sealed cabinet.
Date published: 2013-08-13
Infinity SM62 replacement
I own a pair of Infinity SM62 that are about 18 years old. The foam surrounds are spent. Would these drivers be a decent replacement? At only $9 each it would be cheaper than repairing the original woofers.Ryan
I would say yes. I have heard the infinity's several times and I have a good bit of experience with this GRS driver so it is an educated guess. I will tell you to expect a shift in the sound. Not necessarily for better or for worse, but they will produce a different character. It is likely to be more noticeable in the lower bass and mid bass than in mids or above. Not sure how to describe what to expect other than possibly a more relaxed sound.
Date published: 2012-06-22
Selenium 6W4P 6"
are these close to Selenium 6W4P 6"? i love them just hate the price and i need to buy 10-6.5 and if i did that with Selenium 6W4P 6" it will be around $400, but if i buy these it will be around $100. plz help me
These have quite a few differences from a Selenium model. Lesser power handling, lesser sensitivity and lower Fs generally meaning less output. The Selenium will probably play higher in frequency as well. These are more or less apples to oranges although there is no reason the GRS woofers won't work, just don't compare them so the Seleniums directly.
Date published: 2013-09-06