GRS 5PF-8 5-1/4" Paper Cone Foam Surround Woofer

GRS | Bass mid-bass subwoofer

GRS 5PF-8 5-1/4" Paper Cone Foam Surround Woofer

Name: GRS 5PF-8 mélysugárzó 4" | HQ AudioParts
Brand: GRS
SKU: 5PF-8
Price: 3390.00 HUF
Availability: InStock

SKU: 5PF-8

133.4 mm 8 Ω

Achieve rich, natural bass and clear midrange in your audio projects with this 5-1/4" paper cone woofer, featuring a treated paper diaphragm and foam surround for controlled, low-distortion performance. Its 2.5mm maximum linear excursion (Xmax) ensures reliable output in compact enclosures.

3 390 Ft

(2 669 Ft + VAT)

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Technical data

Nominal diameter	133.4 mm
Impedance	8 Ω
Resonance frequency (Fs)	1000 Hz
Sensitivity (SPL at 1 m / 2.83 V)	84 dB
Power tolerance (max)	13 W

Maximum linear deflection (Xmax)	2.5 mm
Total Q (Qts)	1.4
Electromagnetic Q (Qes)	1.97
Mechanical Q (Qms)	4.87
DC resistance (Re)	7.45 Ω
Voice coil inductance (L_e)	0.85 mH
Equivalent volume (Iron)	3.1148 l
Woofer type	DL200 Audio DAC
Membrane material	Treated paper
Surround material	Foam
Voice coil diameter	25.4 mm
Magnetic material	Ferrite
Dimensions (mm)	128.6 mm
Diameter of the baffle cutout	120.6 mm
# Mounting holes	4
Depth	58.7 mm
Enclosed volume	0 l
Open volume	0 l
Cutoff frequency (–3 dB)	107 Hz
Cutoff frequency (open, -3 dB)	54 Hz

The GRS 5PF-8 5-1/4" Paper Cone Foam Surround Woofer is a versatile bass and mid-bass driver designed to deliver rich, natural sound with controlled low-frequency extension. Its treated paper cone and foam surround combine to produce a warm, articulate response that suits a wide range of audio applications. Whether you are building a custom loudspeaker system, upgrading an existing cabinet, or designing a compact subwoofer for a small room, this driver offers reliable performance and easy integration.

Technically, the 5PF-8 features a 7.45 ohm DC resistance and a sensitivity of 84 dB SPL at 2.83V/1m, ensuring efficient power handling. With a total Q factor (Qts) of 1.4, a mechanical Q (Qms) of 4.87, and an electrical Q (Qes) of 1.97, it is well-suited for sealed or ported enclosures. The maximum linear excursion (Xmax) of 2.5 mm allows for controlled cone movement, while the 0.85 mH voice coil inductance contributes to smooth high-frequency roll-off. The woofer’s 133.4 mm nominal diameter, 58.7 mm depth, and 120.6 mm cutout diameter make it a straightforward fit for many designs. Constructed with a ferrite magnet and a treated paper diaphragm, this driver delivers authentic, low-distortion bass and clear midrange, making it an excellent choice for audiophile projects and DIY enthusiasts alike.