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Pioneer 3-1/2" Speakers


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Item # 130TSA878

This item is no longer available.

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Our take on the Pioneer 3-1/2" Speakers

Pioneer's TS-A878 2-way speakers are an excellent replacement for your factory 3-1/2" speakers. Their woofers are constructed from Carbon-Graphite blended IMPP (Injection Molded Polypropylene) for an exceptionally lightweight, rigid cone. A 1" PEI (polyetherimide) semi-dome tweeter tops them off with vibrant highs.

  • semi-dome PEI tweeter design
  • carbon-graphite blended cone woofer designed for improved bass and decreased distortion
  • rubber surrounds
  • frequency response 60-28,000 Hz
  • recommended power range 2-15 watts RMS
  • peak power handling 60 watts
  • sensitivity 88 dB
  • top-mount depth 1-7/16"

Priced per pair

What's in the Box:

  • 2-3.5" Speakers
  • 4 Phillips screws
  • 4 Speed clips
  • 2-5' Lengths of speaker wire
  • Warranty card
  • Specifications on box.

Hands-on research

Features and Specs

Speaker Size
Design 2-way
Tweeter Design Semi-dome
Impedance (Ohms) 4
Tweeter Composition Poly-Ether Imide
Woofer Composition Carbon-Graphite IMPP
Woofer Surround Rubber
Parts Warranty 1 YEAR
Labor Warranty 1 YEAR
Sensitivity (1W at 1 meter) 88
Sensitivity at 2.83 volts N/A
Frequency Response 60 - 28k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 15
Peak Power Handling (Watts) 60
Top-mount Depth (Inches) 1 7/16
Bottom-mount Depth (Inches) 1 9/16
Cutout Diameter or Length (inches) 3 1/16

Product Research


Woofers: These composite cone woofers are constructed from Carbon-Graphite blended IMPP (Injection Molded Poly-Propylene).  This process of cone molding assures a uniform cone thickness for superior linearity and clarity. It is also lighter weight and more rigid for decreased distortion and improved bass response.

Tweeters: This speaker uses a PEI (Poly-Ether Imide) Semi Dome Tweeter.  PEI offers high rigidity, high durability, and high resistance to heat, chemicals, and the weather. Each tweeter is made with an ultra-slim neodymium magnet; neodymium magnets are strong for their size, so a small magnet can be used without sacrificing any performance.


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.