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
Product Details | |
|---|---|
| Brand | GRS |
| Model | 8PT-8 |
| Part Number | 292-802 |
| UPC | 848864066806 |
| Unit of Measure | Each |
| Weight | 6.35 |
Product Specifications | |
|---|---|
| Nominal Diameter | 8" |
| Bolt Circle Diameter | 7.75 |
| Power Handling (RMS) | 150 Watts |
| Power Handling (MAX) | 300 Watts |
| Impedance | 8Ω |
| Frequency Response | 55 to 9,000Hz |
| Sensitivity | 92dB 2.83V/1m |
| Voice Coil Diameter | 2" |
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 Material | Paper / Glass Fiber |
| Surround Material | Cloth |
| Voice Coil Wire Material | Copper |
| Voice Coil Former | Kapton® / Polyimide |
| Basket / Frame Material | Steel |
| Magnet Material | Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 8.22" |
| Baffle Cutout Diameter | 7.13" |
| Depth | 3.74" |
| # Mounting Holes | 8 |
Recommended Enclosure Volume | |
|---|---|
| Sealed Volume | 0.63ft³ |
| Sealed F3 | 85.3Hz |
| Vented Volume | 0.88ft³ |
| Vented F3 | 52.8Hz |
GRS 8PT-8 8" Paper Cone Professional Woofer 8 Ohm
SKU: 8PT-8
$29.99Price
Expected 2/27/24