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GRS 4FR-8 Full-Range 4-1/2" Speaker Pioneer Type A11EC80-02F 8 Ohm
How close are these in spec and sound to the original Pioneers? The specs are similar but there's no frequency response curve to compare with the Pioneers. The listed frequency response range differs.
What is the effective piston area for this driver?
The Sd of this driver is 62.04 sq cm.
Date published: 2015-04-22
I'm replacing a driver for a Polk Audio model RM40T. This'll be my first endeavour. By all means, it seems it will be a perfect fit, but I don't know if it will have a noticeable difference in quality of sound between a poly cone and a paper cone, etc
Poly and paper cones share a lot of similarities in terms of tone, damping characteristics, etc. The difference in drivers will have more of an impact on sound than just the cone material alone. Please contact our tech support for more help with this question, firstname.lastname@example.org or 800-338-0531 x1.
Date published: 2015-04-17
recommends vented cabinet of 0.1cuft, will the inside dimensions 8"(H), 6(W),4(D), nearly correct?, also how about the vent? size, length of tube if not simple opening?
Yes those dimensions are going to work out just fine. I would recommend a 1" diameter, 2" long port for this application.
Date published: 2015-03-17
What is the terminal width on these drivers?
These terminals are 0.205" wide each.
Date published: 2015-03-11
Will this fit some old mission m70
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, email@example.com or 800-338-0531 x1.
Date published: 2015-03-02