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PCS175-4 6-1/2" Poly Cone Woofer 4 Ohm
Quick Overview
The Dayton Audio PCS175-4 is a versatile 6-1/2" poly cone woofer designed to deliver strong midbass output and smooth response through the midrange. Featuring a grey polypropylene cone with an inverted dustcap, this 4-ohm driver combines modern styling with durable construction for reliable performance in a wide range of speaker systems.Product Highlights
- Durable poly cone and rubber surround for smooth response and long service life
- 4-layer voice coil on aluminum former for improved thermal handling during demanding playback
- Large diameter flat spider improves cone control and supports consistent excursion
- Low-profile stamped steel frame ideal for surface-mounted speaker systems
- Efficient 89 dB sensitivity for strong output with modest amplifier power
Product Manuals / Spec Sheets / Downloads
Dayton Audio PCS175-4 Specification SheetBuying Options
The PCS175-4 is engineered to provide balanced midbass performance and dependable operation in two-way loudspeakers and other low frequency applications. Its polypropylene cone offers excellent damping characteristics while resisting moisture and environmental changes. The grey cone and inverted dustcap give the driver a distinctive, modern appearance that complements contemporary speaker designs. The PCS175-4 serves as a direct replacement woofer for the Dayton Audio B65 bookshelf speaker, providing a convenient solution for restoring bass and midrange performance to any damaged systems.
A compliant rubber surround allows controlled excursion, while the large diameter flat spider maintains proper alignment of the moving assembly to keep the voice coil centered during dynamic playback. The motor system uses a ferrite magnet paired with a four-layer voice coil wound on an aluminum former, providing improved thermal capacity and helping the driver maintain consistent performance during demanding listening sessions.
The stamped steel frame offers rigid support while maintaining a low-profile lip suitable for surface-mounted installations. With sensitivity of 89 dB and frequency response extending from 50 Hz to 5 kHz, the PCS175-4 is an excellent choice for bookshelf speakers, compact floorstanding designs, and other loudspeaker systems that require strong midbass performance.
The PCS175-4 is a direct replacement woofer for the Dayton Audio B65 and B65A bookshelf speakers, offering a simple solution for B65 speaker repair and restoring the original midbass performance.
Compatibility:
| Speaker Series | PC Series |
| Model Number | PCS175-4 |
| Color | Black |
| Unit of Measure | Each |
| UPC | 848791012143 |
| Warranty - Parts | 5 Years |
| Warranty - Labor | 5 Years |
| Weight | 1.5 lbs. |
| Speaker Type | Woofer |
| Nominal Diameter | 6-1/2" |
| Power Handling (RMS) | 30 watts |
| Power Handling (max) | 60 watts |
| Impedance | 4 ohms |
| Sensitivity | 89.2 dB @ 2.83V/1m |
| Frequency Response | 50 - 5,000 Hz |
| Voice Coil Diameter | 25 mm |
| DC Resistance (Re) | 3.7 ohms |
| Voice Coil Inductance (Le) | 0.8 mH @ 1 kHz |
| Resonant Frequency (Fs) | 56 Hz |
| Mechanical Q (Qms) | 2.85 |
| Electromagnetic Q (Qes) | |
| Total Q (Qts) | 0.98 |
| Diaphragm Mass Inc. Airload (Mms) | 17.2g |
| Mechanical Compliance of Suspension (Cms) | 0.47 mm/N |
| Surface Area Of Cone (Sd) | 143c cm² |
| BL Product (BL) | 4.78 Tm |
| Compliance Equivalent Volume (Vas) | 0.484 liters |
| Maximum Linear Excursion (Xmax) | 2 mm |
| Cone / Diaphragm Material | Poly |
| Surround Material | Rubber |
| Basket/Frame Material | Stamped Steel |
| Magnet Material | Ferrite |
| Overall Outside Diameter | 177.8 mm |
| Overall Depth | 69.85 mm |
| Baffle Cutout Diameter | 146.05 mm |
| # Mounting Holes | 4 |