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GRS 8PT-8 8" Paper Cone Professional Woofer 8 Ohm

GRS
Part #292-802

GRS 8PT-8 8" Paper Cone Professional Woofer 8 Ohm

GRS
Part #292-802  
Model: 8PT-8
The GRS 8PT-8 8” professional paper cone woofer will deliver high output midbass and midrange response without breaking the bank. Packed with features like a 2” voice coil, inductance reducing copper cap, under spider venting, and gap vents; this driver is built for high performance, low distortion, and incredible reliability. Whether you need a drop-in replacement for a damaged loudspeaker or you are designing a high output 2-way system, the 8PT-8 is the perfect driver for budget builds.
Key Features
  • Lightweight ribbed paper cone allows high efficiency with minimal resonance
  • Smooth on and off axis response up to 3,000 Hz for use in high output 2 or 3-way designs
  • Extensive venting keeps cool air flowing across the voice coil to minimize power compression
  • Inductance lowering copper cap reduces distortion and extends high frequency response
  • Spring-loaded push-button terminals makes wire connections quick and easy
  • Foam front gasket ensures an airtight seal for rear mount installations
Your Price: $23.98
MSRP: $29.99
Save $6.01 (20%)
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Overview

GRS 8PT-8 8" Paper Cone Professional Woofer 8 Ohm

Engineered for high output with smooth frequency response, the 8PT-8 8” professional woofer is ideal for use in systems built to provide impressive SPL. Packed with features you would expect from much more expensive drivers, the 8PT-8 is built for low distortion and reliability even when pushed to its limit. The lightweight reinforced paper cone has excellent damping properties, minimizing unwanted resonances, and the ribbed surface controls cone breakup to ensure smooth response all the way up to 3,500 Hz. Driving the cone is a 2” diameter dual-layer voice coil that is wound on a heat resistant polyimide former to handle up to 150 watt RMS. Extensive venting through frame, pole piece, and magnetic gap cools the voice coil to prevent thermal runaway and lower power compression during long sessions at high power. With a copper cap on the pole piece keeping inductance under control, you can ensure that the 8PT-8 will provide low distortion throughout its useable bandwidth. Whether you need a drop-in replacement for a worn-out speaker, or are designing high output 2-way system, the 8PT-8 is the ideal choice if you want high output and natural response without spending a fortune.

Product Details

BrandGRS
Model8PT-8
Part Number292-802
UPC848864066806
Unit of MeasureEach
Weight6.35

Product Specifications

Nominal Diameter8"
Bolt Circle Diameter7.75
Power Handling (RMS)150 Watts
Power Handling (MAX)300 Watts
Impedance8Ω
Frequency Response55 to 9,000Hz
Sensitivity92dB 2.83V/1m
Voice Coil Diameter2"

Thiele-Small Parameters

Resonant Frequency (Fs)59Hz
DC Resistance (Re)7.1Ω
Voice Coil Inductance (Le)1.5mH
Mechanical Q (Qms)9.93
Electromagnetic Q (Qes)0.59
Total Q (Qts)0.55
Compliance Equivalent Volume (Vas)0.71ft³
Mechanical Compliance of Suspension (Cms)0.31mm/N
BL Product (BL)10.2T·m
Diaphragm Mass Inc. Airload (Mms)23g
Maximum Linear Excursion (Xmax)7mm
Surface Area of Cone (Sd)212.6cm²

Materials of Construction

Cone MaterialPaper / Glass Fiber
Surround MaterialCloth
Voice Coil Wire MaterialCopper
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter8.22"
Baffle Cutout Diameter7.13"
Depth3.74"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.63ft³
Sealed F385.3Hz
Vented Volume0.88ft³
Vented F352.8Hz

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