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Pair of black 6.75 inch coaxial car speakers with mesh grilles

PowerBass

PowerBass 2XL673 6.75" coaxial car speaker pair

SKU CH-C7GB-WCBCY

A 6.75-inch coaxial speaker pair rated at 150 watts RMS with a 1-inch silk dome tweeter and 89 dB sensitivity

  • Speaker unit size6.75 in (17.1 cm)
  • Product type6.75 in (17.1 cm)
  • 300 W peak power handles loud transients
  • 150 W RMS per pair sustains clean output
  • 1" Emperor's Silk Dome tweeter extends highs to 20 kHz
  • Non-woven wool paper cone with butyl rubber surround resists fatigue
  • 3-ohm impedance draws more power from factory amplifiers

Speaker Pair for Door & Deck Openings

The PowerBass 2XL673 is a 6.75-inch coaxial speaker pair built for factory door or rear-deck locations. Each unit combines a non-woven wool paper cone with a 1-inch Emperor’s Silk dome tweeter. The 3-ohm nominal impedance draws more current from a standard head unit for higher output. Sold as a matched pair for balanced stereo imaging.

Thermal & Power Behaviour in Daily Use

The heavy motor structure and butyl rubber surround dissipate heat during extended play at 75 watts RMS per speaker. Peak handling reaches 150 watts per unit without mechanical failure. The non-resonant basket reduces cabinet vibration that can colour midrange. Sensitivity of 89 dB at one watt and one metre keeps amplifier demand moderate.

Shallow Mounting Depth Constraint

A mounting depth of 1.9 inches fits tight door cavities where deeper baskets cannot clear window mechanisms. The 12-ounce magnet and PBX custom mesh grill add minimal protrusion. Frequency response spans 60 Hz to 20 kHz for full-range coverage without a separate subwoofer. Buyers needing deeper bass extension or component separation should consider alternative designs.

How it compares

Measured against everything we stock in Car Stereo Speakers, at today’s prices. Recalculated every night.

Price $56.99
Cheaper than about 68% of the 379 comparable items (median $104.99).

Specifications

Product
Brand namePowerBass
Product type6.75 in (17.1 cm)
Audio & video
Speaker unit size6.75 in (17.1 cm)

Questions about this item

How do I install the 6.75" coaxial speakers and what mounting depth mistake should I avoid?

The speakers need a 1.9" mounting depth; measure the door cavity before cutting to ensure the heavy motor structure clears the window mechanism and wiring harness.

What maintenance will the butyl rubber surrounds and silk dome tweeters need over time?

Butyl rubber resists drying and cracking far longer than foam, so the surrounds rarely need replacement; the silk dome tweeters have no ferrofluid to dry out, leaving only occasional grille cleaning.

At what power level does the 3-ohm impedance first stress a typical head-unit amplifier during sustained playback?

With 75 W RMS per speaker and 89 dB sensitivity, the 3-ohm load draws significantly more current than 4-ohm models, so many factory amplifiers hit current limits or thermal protection well below the 150 W peak rating.

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