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Black 3 inch waterproof surface mount satellite speaker

1 Factory Radio

1 Factory Radio 1FRSM-SM3B 3" Waterproof Speaker 25 W 4 Ω Black

SKU CH-3Y2S-719FS

Waterproof 3-inch speaker handles 25 watts at 4 ohms with a 250 to 18000 Hz frequency range for marine and outdoor audio

  • TypeRadio
  • Weight6
  • Waterproof and UV resistant build survives marine environments
  • 25 W power handling drives clear sound on deck
  • 4 Ω impedance matches common marine amplifiers
  • 250 – 18000 Hz frequency range covers voice and music
  • Compact 3 inch satellite design fits tight mounting spots

Marine-grade satellite speaker

The 1 Factory Radio 1FRSM-SM3B is a single 3-inch surface-mount satellite speaker built for marine, spa and RV installations. Its waterproof and UV-resistant construction withstands direct exposure to moisture and sunlight. The 4 ohm impedance suits standard marine amplifiers and head units. Buyers who need a pair for stereo coverage must order two units.

Frequency response and power limits

The driver reproduces 250 to 18000 kHz, so mid-range and high frequencies are covered while deep bass requires a separate subwoofer. Continuous power handling is rated at 25 watts, which sets the practical ceiling for amplifier matching. Exceeding this level risks thermal damage during extended playback. Installers should verify that the source unit or amplifier can deliver clean power within this envelope.

Surface-mount convenience

The compact black housing mounts flush on flat surfaces without a cut-out, simplifying fitment on fiberglass decks, cabin walls or RV awnings. Waterproof seals protect the motor structure and cone from spray and humidity. UV-resistant materials prevent fading and brittleness after seasons in direct sun. The two-wire terminal accepts standard speaker cable for quick, reliable connections.

Highlights

  • Waterproof and UV resistant build survives marine environments
  • 25 W power handling drives clear sound on deck
  • 4 Ω impedance matches common marine amplifiers
  • 250 – 18000 Hz frequency range covers voice and music
  • Compact 3 inch satellite design fits tight mounting spots

Specifications

Brand1 Factory Radio
Model1FRSM-SM3B
TypeRadio
Weight6

Questions about this item

Is the 25 W power handling for one speaker or a pair?

The 25 W rating applies to each individual 3" waterproof speaker; the listing is priced per single unit.

What does the 250–18000 kHz frequency response mean for on-water listening?

The range starts at 250 kHz, so mid-range and high frequencies are covered while deep bass is limited — typical for a compact satellite speaker.

How does the 4 Ω impedance affect amplifier matching?

A 4 Ω load draws more current than higher-impedance models, so pair it with an amp rated stable at 4 Ω to avoid overheating.

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