The Rockville Punisher 8D1 is an 8-inch car subwoofer with dual 1-ohm voice coils. It weighs 24.26 lbs and uses a double stacked 145 oz (9.06 lbs) Y35 magnet.
It is built to handle heat. An oversized aluminum heatsink ring sits near the T-yoke, and the T-yoke and washers are extra thick to absorb and dissipate heat. The T-yoke has vented holes. The 2.5" voice coil is stable up to 250 degrees Celsius, and the glue is a high-temperature black glue.
The cone is a thick, black, non-pressed paper cone reinforced with black stitching. It has a thick foam surround and a 0.9 mm polypropylene dustcap. The spider has two layers of thick, tear-resistant material. A custom mounting gasket helps seal the subwoofer air-tight when mounted. Recone kits are available.
- Size
- 8 inch
- Impedance
- Dual 1-ohm voice coils
- Peak power
- 3000 watts
- Program power
- 1500 watts
- RMS power
- 750 watts
- Voice coil
- 2.5" 4-layer black aluminum, wound with OFC wire; stable up to 250°C; windings made in the USA
- Magnet
- Double stacked 145 oz Y35 magnet, 9.06 lbs; rubber boot magnet cover
- Basket
- Cast aluminum with black sanded finish
- Cone
- Black non-pressed paper, ultra-stiff, with black stitching
- Surround
- Thick foam
- Dustcap
- Polypropylene, 0.9 mm thick
- Spider
- 2 layers, thick gauge, tear-resistant
- Cooling
- Oversized aluminum heatsink ring, extra thick T-yoke and washers, vented T-yoke holes
- Motor
- High BL magnetic motor gap
- Terminals
- 2 chrome-plated binding posts
- Mounting
- Custom Rockville mounting gasket
- Cutout diameter
- 7.76 inches
- Mounting depth
- 6.54 inches
- Weight
- 24.26 lbs