Polk Audio DB521 5.25" Car Audio Speakers
- Model: DB521 db-series
- Car Audio 5.25 inch 2-way Speakers
- Marine Certified
- RMS Power Handling: 90 watts per pair / 45 watts each
- PEAK Power Handling: 275 watts per pair / 135 watts each
- Frequency response: 60-22,000 Hz
- Impedance: 4-ohms
- Sensitivity: 93 dB
- Dynamic Balance polymer/mica composite mineral filled cone is stiff yet lightweight for big sound and little distortion
- 19mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear and detailed highs
- Low-mass 2-Layer 25mm Kapton voice coil former is lightweight for high sound output
- Multi-hole mounting pattern and shallow depth for easy drop-in installations in most cars
- ABS Grilles, computer optimized and based on exclusive MOMO designs
- Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time
- Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability
- Acoustically inert stamped steel basket
- Flat Spider for faster, longer excursion linear motion
- Flexible woven tinsel leads sewn directly into Spider for greater reliability
- Top mount depth: 2-5/16"
- Bottom mount depth: 2-7/16"
- Cutout Dimensions: 4-11/16"
