Punch P28S8 - Subwoofer Rockford Fosgate - Free user manual and instructions
Find the device manual for free Punch P28S8 Rockford Fosgate in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Type of product | Subwoofer speaker |
| Main function | Bass reproduction |
| Brand | Rockford Fosgate |
| Model | Punch P28S8 |
| Speaker size | 8 inches |
| Nominal power (RMS) | 250 W |
| Peak power | 500 W |
| Power supply | External car audio amplifier |
| Impedance | 4 ohms |
| Sensitivity | 86 dB (1W/1m) |
| Frequency response | 35 – 250 Hz |
| Voice coil diameter | 2 inches (50 mm) |
| Overall diameter | 208 mm |
| Mounting depth | 104 mm |
| Cutout diameter | 177 mm |
| Weight | 4.5 kg |
| Recommended enclosure volume | Sealed: 8 L / Ported: 14 L |
| Cone material | Injected polypropylene |
| Cleaning | Wipe with a dry cloth |
| Safety | Install in a suitable enclosure |
| Spare parts | Replacement grilles and screws |
| Manual included | Yes (PDF) |
Frequently Asked Questions - Punch P28S8 Rockford Fosgate
What is the recommended enclosure for the Punch P28S8?
The Punch P28S8 works best in a sealed enclosure with a volume of about 8 liters (0.28 cubic feet) or a ported enclosure of 14 liters (0.5 cubic feet) tuned to 35 Hz. Always follow the enclosure recommendations in the manual to avoid damaging the subwoofer.
Can I use this subwoofer in a sealed box?
Yes, the P28S8 is ideal for sealed enclosures. A sealed box provides accurate bass and is easier to build. Make sure the internal volume meets the recommended 8 liters and that the box is airtight.
What impedance is the P28S8 and how should I wire it?
This subwoofer has a 4-ohm impedance. If you have two subwoofers, you can wire them in parallel or series to present a 2-ohm or 8-ohm load to the amplifier. Check your amplifier's stable impedance range before wiring.
How much power does the P28S8 handle?
The RMS power rating is 250 watts and the peak power is 500 watts. It is recommended to use an amplifier that provides between 100 and 300 watts RMS to get the best performance without risking damage.
What is the subwoofer size of the Punch P28S8?
The P28S8 features an 8-inch cone. The overall diameter is 208 mm, the mounting depth is 104 mm, and the cutout diameter is 177 mm.
How do I mount the subwoofer?
Cut a circular hole of 177 mm in the enclosure, insert the subwoofer, and secure it with the supplied screws. Tighten the screws evenly and ensure the gasket seals properly. Avoid over-tightening.
Can I install this subwoofer in a small car?
Yes, the compact 8-inch design makes it easy to install in small spaces. A sealed enclosure with a volume of around 8 liters fits under a seat or in a trunk corner. Ensure you have adequate depth for the magnet structure.
How do I break in a new subwoofer?
Play music with moderate volume for about 20-30 hours before using maximum power. This allows the suspension to loosen up and ensures longer life. Use a low-frequency track between 40-80 Hz for best break-in.
What is the frequency range of the P28S8?
The frequency response of the Punch P28S8 is 35 Hz to 250 Hz. It is designed for bass reproduction, so it is best used with a low-pass filter at around 100 Hz in a subwoofer system.
How do I care for and maintain the subwoofer?
Keep the subwoofer clean by wiping the cone and surround with a lightly damp cloth to remove dust. Avoid using harsh chemicals or water on the voice coil. Periodically check the mounting screws for tightness.
User questions about Punch P28S8 Rockford Fosgate
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Subwoofer in PDF format for free! Find your manual Punch P28S8 - Rockford Fosgate and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. Punch P28S8 by Rockford Fosgate.
USER MANUAL Punch P28S8 Rockford Fosgate
Manual assistant
Powered by Anthropic
Waiting for your message
Product information
Brand : Rockford Fosgate
Model : Punch P28S8
Category : Subwoofer