About the Alpine Type-R SPR-57LP
Alpine's audio engineers have used many of the high-end elements found in their acclaimed Type-R component systems to create the smooth-sounding, high-performance Type-R coaxial speakers.
The SPR-57LP 5"x7" 2-way speakers feature multi-layered pulp woofer cones with rubber surrounds that hang tough when you turn up the volume. Alpine builds the woofers with high-strength steel baskets and heavy-duty speaker motors for the steady support they need when the system is cranked. You'll enjoy full low-frequency response with low distortion.
Alpine's 1" silk dome tweeters radiate enveloping highs. A special tuned chamber behind each tweeter increases driver efficiency to ensure crisp, clear reproduction. Grilles are not included. (Factory grilles are appropriate for most installations.)
Priced per pair
Product highlights:
- 2-way car speakers for 5"x7" and 6"x8" openings (pair)
- multi-layer pulp woofer cone with rubber surround
- 1" silk dome tweeter
- power handling: 2-40 watts RMS
- frequency response: 35-30,000 Hz
- sensitivity: 87 dB
- peak power handling: 200 watts
- adapter rings for use in 6"x8" openings
- top-mount depth: 2-5/8"
- warranty: 1 year
- MFR # SPR-57LP
What's in the box:
Alpine Type-R SPR-57LP owner's manual
- Two 2-way speakers
- 2 Plastic 6"x 8" adapter rings
- Eight 1-3/16" self-tapping screws
- Eight 1/4" self-tapping screws
- 8 Speed clips
- Warranty sheet
- "Important Notice!" sheet
Customer reviews for Alpine Type-R SPR-57LP
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More details on the Alpine Type-R SPR-57LP
Features & specs
General | ||
---|---|---|
Speaker Size | ||
Design | 2-way | |
Tweeter Design | 1" Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | Silk | |
Woofer Composition | Multi-layer pulp | |
Woofer Surround | Rubber | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Specifications | ||
Sensitivity (1W at 1 meter) | 87 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 35 - 30k Hz | |
Minimum RMS Wattage | 2 | |
Maximum RMS Wattage | 40 | |
Peak Power Handling (Watts) | 200 | |
Top-mount Depth (Inches) | 2 5/8 | |
Bottom-mount Depth (Inches) | N/A | |
Cutout Diameter or Length (inches) | 0 | |
Mounting Height (Inches) | 0.258 | |
Frame Width | 5.481 | |
Frame Length | 7.613 |
Product Research
Features
Multi-layer Pulp Woofer Cones: Each speaker features a multi-layer pulp cone, for maximum strength, powerful bass and superior musical detail. For a smoother response and improved durability, the woofers use rubber surrounds.
1" Silk Dome Tweeters: Each speaker uses a 1" silk dome point source tweeter for better sound quality with less distortion. The unique design of the point source tweeter eliminates any cross cancellation between woofer and tweeter, and aligns the sound waves, for smooth sound performance.
Mounting: The speakers can be top-mounted in a 5"x7" opening, or, using the supplied adapter rings, the speakers can be top-mounted in a 6"x8" opening. The Crutchfield database contains the 5"x7" measurements. When mounted in a 6"x8" opening using the adapter rings, the speakers have the following measurements:
6"x8" Measurements:
Vehicle Fit:
- Depth as top: 2.394"
- Mounting height: 0.475"
- Flange height: 0.376"
Basket Dimensions:
- Magnet diameter: 3.995"
- Major apex of oval: 7.176"
- Minor apex of oval: 4.996"
- Frame width: 5.679"
- Frame length: 8.029"
Bolt Pattern:
- Diagonal 1: 8.183"
- Diagonal 2: 8.183"
- Minor axis 1: 4.895"
- Minor axis 2: 4.895"
- Major axis 1: 4.271"
- Major axis 2: 4.271"
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