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Pair of white 6x9 inch marine coaxial speakers with polypropylene cones and PEI dome tweeters

ATG

ATG 6x9" Marine Coaxial Speakers Pair White 75W RMS 175W Peak

SKU CH-3Z5C-SM8NM

White 6x9" marine coaxial pair delivers 75 W RMS with water-resistant construction

  • Speaker unit size6 in × 9 in
  • Product typeSpeaker
  • Marine-grade build withstands salt spray and extreme temperatures
  • 2-way coaxial design covers 48 Hz to 20 kHz for full-range sound
  • 75 W RMS power handling keeps output clean at high volume
  • 91 dB sensitivity extracts loud, clear audio from modest amplifiers
  • White polypropylene cones and PEI dome tweeters resist UV and moisture damage

Marine Audio Ready

These ATG 6x9 inch coaxial speakers are built for boats and off-road vehicles that need durable sound. The pair delivers 75 watts RMS and 175 watts peak power with a 4 ohm nominal impedance. White polypropylene cones and PEI dome tweeters handle salt spray and temperature swings. They suit owners who want reliable playback without cabin-grade fragility.

Sustained Output Behaviour

At 75 watts RMS the speakers maintain clean output through long listening sessions on the water. The 91 dB sensitivity means they reach usable volume with modest amplifier power. The 48 Hz to 20 kHz frequency range keeps bass present and highs detailed during extended runs. They are not for systems chasing competition SPL or sub-bass extension below 48 Hz.

Thermals And Power Draw

The marine-grade construction resists corrosion and heat buildup in exposed mounting locations. No active cooling is used so operation stays silent apart from the music itself. Power draw follows the amplifier output up to the 175 watt peak rating without thermal compression. They are not for sealed enclosures that trap heat beyond the driver's rated limits.

How it compares

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

Price $62.99
Cheaper than about 64% of the 379 comparable items (median $104.99).

Specifications

Product
Product typeSpeaker
Audio & video
Speaker unit size6 in × 9 in

Questions about this item

How much heat or noise do the ATG 6x9" marine speakers produce when running at 75 W RMS all day?

Passive speakers generate no electrical noise; heat stays low because the 4 Ω impedance and 91 dB sensitivity let the amplifier run efficiently at 75 W RMS per speaker.

What amplifier or wiring must I already own to install these ATG 6x9" coaxial speakers?

You need a 4 Ω stable amplifier that can deliver 75 W RMS per channel and speaker wire sized for the run; the pair mounts in standard 6x9 openings.

Will these 91 dB sensitivity ATG speakers work well with an older head unit that only puts out 15–20 W RMS?

Yes, the 91 dB sensitivity means they play loudly even with modest power, and the 48 Hz – 20 kHz range matches older source units without modification.

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