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Aquatic AV AQ-SPK3.0-4S

Waterproof 3" speaker for spa or hot tub

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Item # 261SPK304S

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Our take on the Aquatic AV AQ-SPK3.0-4S

Custom installation

Installing your own speakers around your hot tub or spa? This waterproof 3" speaker from Aquatic AV can serve as a standalone driver in tight spaces, or as a midrange- and high-frequency driver in a multi-speaker setup. Designed to stand up to the heat and moisture, this speaker can handle up to 30 watts RMS, and delivers smooth response from 125 to 20,000 Hz. A silver removable grille is included.

Product Highlights:

  • waterproof 3" speaker for spa or hot tub (single)
  • polypropylene cone with rubber surround
  • removable silver grille included
  • for use as a standalone speaker in smaller installations or as a complement to larger speakers
  • UV and salt/fog protection and UV-resistant basket material
  • handles up to 30 watts RMS (60 watts peak)
  • frequency response: 125-20,000 Hz
  • mounting depth: 1-11/16"
  • cutout diameter: 2-7/8"
  • impedance: 4 ohms
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • One 3" Spa Speaker (attached 20" wiring harness)
  • Grille (attached to speaker)
  • Three 1" Phillips-head screws

Hands-on research

Product Research


Overview: The AQ-SPK3.0-4S waterproof speaker is a robust, durable, high quality speaker designed to withstand the harsh conditions of spa and hot tub use. Rated at 30 Watts RMS (60W peak power) and with a frequency response of 125Hz-20kHz, this compact 3" speaker can deliver clear full-range output and is ideal for installations with space restraints or for use in conjunction with larger speakers.

Waterproof Design: The AQ-SPK3.0-4S speaker is fully waterproof, as well as UV light and salt protected. It features a polypropylene cone with rubber surround and ferrite magnet, all housed in a durable ABS plastic enclosure, and includes a metal-mesh grill. The speaker requires a cutout diameter of 2.80" and 1.875" of mounting depth. Along with the three screws provided for mounting, the backside of the speaker flange includes a pre-installed rubber gasket for providing a tight seal against the mounting surface.


  • Power Handling: 30W RMS (60W Peak)
  • Frequency Response: 125Hz - 20kHz
  • Impedance: 4Ω
  • Outer Flange Diameter: 3.0"
  • Grille Diameter: 3.750"
  • Cutout Diameter: 2.80"
  • Mounting Depth: 1.875"
  • Weight: 0.64 lbs.

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.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

The factory speakers in our hot tub failed which brought me to Crutchfield for a replacement with the rather specific mounting dimensions. Since we have purchased audio equipment from Crutchfield for all of our vehicles over the years without a single problem so far, I felt more comfortable buying a replacement here. The 60 day money back guarantee and the 2 year warranty on them should make it a safe bet that they will hold up and perform well. [ GREG  Oct 07, 2018 ]

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