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Alpine SPX-137R

5-1/4" 2-way Type-X Series Component System

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  • 5-1/4" 2-Way Component System
  • Power Handling 240 watts Peak / RMS 60 watts
  • Frequency Response: 40 Hz - 60 kHz
  • Sensitivity: 86 dB
  • Impedance: 4 Ohms
  • Custom Cast Aluminum Frame
  • Airflow Optimized Dual-Flare Pole Vent
  • Integrated Spider Landing & Heat Transfer Plate
  • Low Resonance Multi-Roll Surround
  • Wood Fiber Cone
  • Phase-Integrated Dustcap
  • Ultra High Quality 2-way Crossover
  • On/Off Axis Compensation
  • Bi-Wire Input and Selectable Tweeter Attenuation
  • 1-year SonicElectronix.com warranty

Crossover

  • 3-Way/Dual Midbass Ready
  • Bi-Amp/Bi-Wire Capable
  • Gold Plated Terminals and Connection Jumpers
  • Integrated Level /Axis Adjustment
  • Phase Coherent Design
  • Tweeter Protection Circuit
  • Ultra-High Grade Passive Components

Tweeter

  • 19mm Voice Coil, Copper Clad Aluminum Wire on Aluminum Bobbin
  • Low Distortion Motor Structure with High Grade Neodymium Magnets and Copper Shorting Cap
  • Periphery Venting System into Cast Aluminum Tuned Chamber with Integrated Heatsink
  • Twist Lock Installation Ring with Compact Swivel System (Swivel-Flush, Swivel-Surface, Semi-Flush Angle Tweeter Mounting)

Woofer

  • 4-Layer Copper Clad Aluminum Wire on Glass Fiber Bobbin
  • Airflow Optimized Dual-Flare Pole Vent
  • Braided Low-DCR Tinsel Leads
  • Custom Cast Aluminum Frame
  • Gold Plated Terminals
  • High Grade Strontium Ferrite Magnet
  • High Quality Synthetic Black Spider
  • Low Resonance Multi-Roll Surround
  • Semi-Flush Grille
  • Single Voice Coil Design
  • Wood Fiber Cone & Phase Integrated Dust Cap

Priced Per Pair

Product History:
Alpine SPX-13REF thumbnail
(newest, current model)
Alpine SPX-137R thumbnail
(previous model, replaced by Alpine SPX-13REF)
Speaker Specifications
Speaker Size5-1/4"
Design2-way Component System
Tweeter DesignN/A
Tweeter CompositionAluminum
Woofer CompositionWood Fiber
Woofer SurroundLRMS
Peak Power Handling240 watts
RMS Power Handling60 watts
Sensitivity86 dB
Frequency Response40 - 60000 Hz
Impedance (Per Voice Coil)4 ohms
Top-Mount DepthN/A
Bottom-Mount Depth2.44" (62mm)
Cutout Dimensions6.18"
Warranty and Return Policy
Return Policy Standard Return Policy
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Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
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Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
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Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
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Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
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Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
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AutoSound 2000 CD-101AutoSound 2000 CD-101
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AutoSound 2000 CD-102AutoSound 2000 CD-102
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AutoSound 2000 CD-103AutoSound 2000 CD-103
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Product Summary

Manufacturer: Alpine
Model number: SPX-137R
UPC: 793276601032
Weight: 7.00 lbs
Internal SKU: spx137r
Internal product ID: 6121

Why Sonic Electronix?

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Customer Testimonial

Very good customer service, fast shipping and order processing and great prices. What more could you want? I would definitely give Sonic Electronix my business for future car audio purchases.

- bxtreme241@gmail.com from East Providence, RI

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