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The Pioneer TS-D1720C are a pair of 6.75” component car-audio loudspeakers pieced together.

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bass range is well represented, has some good detailing without getting distorted

2 agree

capable of loud volume output, don't need much more to the sound system

2 agree

upper ranges are very crisp and well-defined

2 agree

grill designs look high-end and cool

2 agree
  • Only 3 words are allowed.

slightly overbalanced for treble and bass

1 agrees

doesn't have a strong "attack" in the upper ranges, won't give sharp piercing noise (if that's what is desired)

1 agrees

tweeters are larger than most, hard to install them in existing ports

1 agrees
  • Only 3 words are allowed.


The Pioneer TS-D1720C are a pair of 6.75” component car-audio loudspeakers pieced together from dual-layer IMC Aramid/Basalt fibers twisted into a composite cone. Competing directly with the TS-D1320C, the TS-D1720C offers a larger frame (versus 5.25”), increased power handling (260w versus 180w), and a higher quality frequency (30Hz-33kHz versus 35Hz-33kHz). The TS-D1720C also comes equipped with both 6” x 8” and shallow mount adapters, an angled surface for customizable tweeter mounting, and a 1-1/8” soft dome tweeter. Although priced at $219.95 ($20 over the TS-D1720C and $70 over the TS-D1602R), critics cite the Pioneer TS-D1720C’s capacity for big sound, low frequency, and customization as great reasons to purchase it.

  • Woofer Cone Material: Dual-Layer IMX Aramid/Basalt Fiber Composite Cone
  • Surround: Butyl Rubber for Smoother Response
  • Voice Coil Bobbin: Glass-Imide
  • Voice Coil Wire: OFC Copper
  • Damper: Aramid Fiber
  • Copper Ring: OFC Copper
  • Tweeter: 1-1/8" Soft Dome with Magnetic Fluid and Neodymium Magnet
  • Rear Chamber Tweeter Design: Rear Chamber Design for Lower Crossover Frequency
  • Basket Design: Full Depth Basket for Rich Bass Response
  • Built-in Passive Crossover: Audiophile-Grade Outboard with -12dB/Oct. LPF/HPF
  • Speaker Grille: Included
  • Custom-Fit Basket: 6” x 8” and Shallow Mount Adapters Included
  • Special: Surface (Angled), Flush and Invisible Tweeter Mounting
  • Watts MAX Music Power: 260w
  • Watts Nominal Power Handling: 60w
  • Frequency Response: 30Hz-33kHz
  • Sensitivity (1W/1m): 88dB
  • Ohm Rating: 4
  • Mounting Depth: 2-1/2" (64.5 mm)
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