Car subwoofer Polk Audio MM 840
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| Brand: | Polk Audio |
| Description: | Subwoofer car subwoofer car subwoofers 20 cm 8 inch. |
| Type: | Subwoofer |
| Frame: | No |
| Dimensions: | 203.2 mm |
| Power: | 500 W maximum |
| Number of lanes: | 1 |
| Frequency response: | 26 - 200 Hz |
| Size: | 20 cm 8 in. |
| Impedance: | 4 ohm |
| Sensitivity: | 89 dB W/m |
| Installation depth: | 116 mm |
| Number of speakers: | 1 |
| Mounting hole: | 180 mm |
| Resonant frequency Fs: | 35 Hz |
| Equivalent volume Vas: | 15 l |
| Diffuser material: | Polypropylene |
| Basket material: | Carbon |
| Suspension material: | Butyl rubber |
| Total quality factor Qts: | 0.6 |
| Recommended Enclosure: | Closed box |
| Terminals: | Spring |