Alpine SPR-57LS features
Type R Woofer
- Wave Guide
- Aluminium Die Cast Frame
- 40 mm Diameter Voice Coil
- Butyl Rubber Edge
- Multi-Layer Cone
- Linear Drive Magnet
Type R Power Specifications
- Weight 2.3 kg (one piece)
- Mounting Diameter 181 x 125 mm
- Power Handling Capacity (Peak) 300W
- Power Handling Capacity (RMS) 60W
- Mounting Depth 69.5 mm
- Sensitivity 87 dB/W (1m)
- Frequency Response 35Hz-30kHz
- Impedance (Nominal) 4 ohms
Type R Tweeter
- Surface & Flush Mounting Ready
- Back Cabinet Construction
- Swivel Tweeter
- 25 mm 'ULFC' Soft Dome Tweeter
- Neodymium Magnet
Type R Other features
- 6 Tweeter Level Adjustment
- 6' x 8' Adaptor
