GRS 4PF-8 4" Paper Cone Foam Surround Woofer
Thanks to their carefully optimized parameters, GRS 4PF-8 4" poly-laminated paper cone woofers offer a high degree of compatibility when used as replacement speakers—they also provide excellent performance in new projects, too.
| PRODUCT SPECIFICATIONS |
| Power Handling (RMS) |
40 Watts |
| Power Handling (max) |
70 Watts |
| Impedance |
8 ohms |
| Frequency Response |
100 to 10,000 Hz |
| Sensitivity |
84 dB 1W/1m |
| Voice Coil Diameter |
1" |
| THIELE-SMALL PARAMETERS |
| Resonant Frequency (Fs) |
98 Hz |
| DC Resistance (Re) |
7.49 ohms |
| Voice Coil Inductance (Le) |
0.88 mH |
| Mechanical Q (Qms) |
4.55 |
| Electromagnetic Q (Qes) |
1.90 |
| Total Q (Qts) |
1.34 |
| Compliance Equivalent Volume (Vas) |
0.12 ft.³ |
| Maximum Linear Excursion (Xmax) |
2.5 mm |
| MATERIALS OF CONSTRUCTION |
| Cone Material |
Treated Paper |
| Magnet Material |
Ferrite |
| MOUNTING INFORMATION |
| Overall Outside Diameter |
4.125" |
| Baffle Cutout Diameter |
3.75" |
| Depth |
2.125" |
| # Mounting Holes |
4 |
| OPTIMUM CABINET SIZE * |
| Sealed Volume |
0.09 ft.³ |
| Sealed F3 |
104 Hz |
| Vented Volume |
1.26 ft.³ |
| Vented F3 |
53 Hz |
| * Enclosure volume/F3s based on BassBox "optimum" calculations |
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| GRS 4PF-8 4" Paper Cone Foam Surround Woofer |
| Brand |
GRS |
| Model |
4PF-8 |
| Part Number |
292-404 |
| UPC |
844632088445 |
| Product Category |
Woofers |
| Product Rating |
(7 Reviews)
|
| Unit of Measure |
ea |
| Weight |
1.4000 |
