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Alpine SPR-13S

5-1/4" component speaker system

4 Reviews

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Item # 500SPR13S

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Our take on the Alpine SPR-13S

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Alpine SPR Component Systems

If you appreciate good music, what better place to create an amazing audio system than in your car? Alpine's SPR Series component speakers offer you smooth, extremely accurate performance that'll set up a powerful soundstage.

High-tech woofers and tweeters

SPR woofer

The SPR-13S component system utilizes 5-1/4" hybrid layered-pulp woofers that send out punchy midbass and vibrant midrange. Textile ring-dome tweeters highlight the vocals and instruments, delivering the subtle details that your old speakers could never reproduce. You can pivot the tweeters up to 15 degrees to optimize the stereo image in your car.

SPR tweeter

Crossovers direct the flow

External 2-way crossover networks direct the high and low frequencies to the correct speakers for seamless sound, high efficiency, and maximum clarity. You just might look forward to driving to work after you experience the change that Alpine components can make in your music.

SPR crossover

Priced per system
Note: Sorry, Crutchfield cannot ship Alpine products to Guam or Puerto Rico.

What's in the Box:

  • 2 Woofers
  • 2 Grilles
  • Two 6x8 adapter rings
  • 2 Tweeter plugs (installed in adapter rings)
  • 8 Self-tapping screws (4mm x 30mm)
  • 8 Speed clips
  • 4 Self-tapping screws (4mm x 9mm)
  • Two 1" tweeters with attached 8.25' speaker wires (with bare wire ends) mounted in 2-piece flush mount cup assembly
  • 2 Threaded tweeter rings
  • 2 Plastic surface tweeter mounts
  • 2 Self-adhesive foam rings
  • 2 Self-adhesive foam pads (3-1/2" x 2")
  • 2 Crossovers
  • 4 Self-tapping screws (4mm x 18mm)
  • 4 Flat speed clips
  • Warranty sheet
  • "Important Notice!" sheet

Product Highlights:

  • system includes two 5-1/4" woofers, 2 tweeters, and 2 crossovers
  • hybrid layered-pulp woofer with rubber surround
  • 1" textile ring-dome tweeter
  • external crossovers — 12 dB per octave (high-pass) and 6 dB per octave (low-pass)
  • 7-level tweeter adjustment
  • power range: 8-100 watts RMS (300 watts peak power)
  • frequency response: 70-27,000 Hz
  • sensitivity: 86 dB
  • top-mount depth: 2-3/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Alpine SPR-13S Reviews

Average Customer Review(s):

(4 Reviews)
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Hands-on research

Features and Specs

Speaker Size 5 1/4
Design 2-way
Tweeter Design 1" Ring-dome
Tweeter Composition Silk
Woofer Composition Hybrid fiber pulp
Woofer Surround Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity (1W at 1 meter) 86
Sensitivity at 2.83 volts N/A
Frequency Response 70 - 27k Hz
Minimum RMS Wattage 8
Maximum RMS Wattage 100
Peak Power Handling (Watts) 300
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 3/16
Bottom-mount Depth (Inches) 2 3/8
Cutout Diameter or Length (inches) 4 5/8

Product Research



Woofers: The Alpine Type-R series component speakers feature woofer cones made of hybrid layered-pulp with mica coating for great bass response. For durability and superior linearity, the woofers have rubber surrounds.

Motor Structure: The High-performance Linear Drive Motor structure features a large magnet that is almost as big as the voice coil diameter. Its dual radial magnet and twin gap, combined with a square, edge-wound voice coil, gives the diaphragm linear movement over a much greater range. This design allows the speaker to be faithful to the input signal even during high excursion, for accurate musical reproduction and deep bass.

Adapter Rings: The SPR-13S component speakers come with a pair of adapter rings. The rings allow you to install the woofers in 6"x8" openings. The tweeter can be mounted in the adapter ring, or mounted separately. The rings have a tweeter plug that can be removed if you choose to mount the tweeter in the adapter ring.


Tweeters: The SPR-13S component speakers are equipped with 1" (25mm) silk ring-dome tweeters for greater detail and bright, crisp highs.

Tweeter Mounting Options: The tweeters come installed in a swiveling flush-mount cup. You can also install the tweeters in a stealth mount when it will be hidden behind a factory grille. The stealth mount can be used as a top mount or a bottom mount.

Tweeter Mounting Dimensions:


Flush Mount

Stealth Mount

Top Mount

Bottom Mount

Mounting Depth




Mounting Height




Cutout Diameter




Frame Diameter


2.813" x 1.714"

2.813" x 1.714"


Two-way Crossovers: The SPR-13S component speakers come with 2-way external crossover networks. The crossover features a 6dB/octave low pass filter for the woofers, and a 12dB/per octave high pass filter for the tweeters.

Tweeter Attenuation: The crossover has a 7-level tweeter adjustment to allow you to precisely tune your high frequencies. Using the supplied jumpers, you can select 0dB (no attenuation), or 6 levels of attenuation: -3dB, -4dB, -5dB, -6dB, -7dB and -8dB.

Input/Output Connections: The crossover features gold-plated screw terminals for the amplifier inputs and the woofer and tweeter outputs. The screw terminals are hidden by the crossover cover.

Crossover Mounting: There are two holes in the base of each crossover for the two mounting screws. Each crossover comes with flat speed clips.

Dimensions: The crossover has the following dimensions: Width=4.525", Height=1.265", Depth=2.864"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.