PW877X - Subwoofer Pyramid - Free user manual and instructions
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| Product Type | Subwoofer |
| Brand | Pyramid |
| Model | PW877X |
| Driver Size | 8 inches |
| Impedance | 4 ohms |
| Power Handling (RMS) | 250 watts |
| Peak Power | 500 watts |
| Frequency Response | 30 Hz - 300 Hz |
| Sensitivity | 88 dB |
| Cone Material | Paper with non-pressed surround |
| Surround Material | Foam |
| Voice Coil | Single 2-layer |
| Mounting Depth | 4.5 inches |
| Cutout Diameter | 7.25 inches |
| Recommended Sealed Box Volume | 0.5 - 0.8 cubic feet |
| Recommended Ported Box Volume | 0.8 - 1.2 cubic feet |
| Dimensions (Overall) | 8.5 x 8.5 x 5.5 inches |
| Net Weight | 5.5 lbs |
| Color | Black |
| Terminals | Spring-loaded push terminals |
| Cleaning Instructions | Wipe with dry cloth; avoid moisture on cone |
| Safety Precautions | Do not expose to water; ensure proper ventilation; check impedance matching |
| Spare Parts Availability | Contact Pyramid customer service for replacement parts |
| Reparability | Recone kits and voice coils available from authorized dealers |
Frequently Asked Questions - PW877X Pyramid
What is the impedance of the Pyramid PW877X subwoofer?
The Pyramid PW877X has a nominal impedance of 4 ohms, making it suitable for most car audio amplifiers.
What is the recommended enclosure for this subwoofer?
For optimal performance, use a sealed enclosure with 0.5-0.8 cubic feet or a ported enclosure with 0.8-1.2 cubic feet. Ensure the enclosure is properly braced and sealed.
How much power can the PW877X handle?
The RMS power handling is 250 watts with a peak of 500 watts. It is recommended to match with an amplifier delivering 200-300 watts RMS at 4 ohms.
What is the mounting depth?
The mounting depth is 4.5 inches, and the cutout diameter is 7.25 inches. Confirm measurements before installation.
Can I bridge two PW877X subwoofers?
Yes, you can bridge two 4-ohm subwoofers to present a 2-ohm load (parallel wiring) or 8-ohm load (series wiring). Ensure your amplifier is stable at the resulting impedance.
What type of terminals does the PW877X use?
It features spring-loaded push terminals that accept bare wire or spade connectors. Twist or tin the wire ends for better contact.
How do I break in a new PW877X subwoofer?
Play music at moderate volume (30-50% max) for about 10-20 hours with varied bass frequencies. Gradually increase volume over time to loosen the suspension.
Can I use this subwoofer in a home theater?
Yes, it can be used for home audio with an appropriate subwoofer amplifier. Ensure the enclosure is sized correctly and the amplifier matches the impedance and power.
How do I clean the subwoofer?
Use a soft dry cloth to wipe the cone and surround. Avoid liquids or cleaners that could damage the paper cone or foam surround.
What is the warranty on the Pyramid PW877X?
Pyramid typically offers a 1-year limited warranty against defects in materials and workmanship. Contact Pyramid customer support for detailed warranty terms.
User questions about PW877X Pyramid
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