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Aquatic AV AQ-SPK3.0-4S

Waterproof 3" speaker for spa or hot tub

Item # 261SPK304S

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Item # 261SPK304S

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$19.99 each

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About 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
  • MFR # AQ-SPK3.0-4S

What's in the box:

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

Customer reviews

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Aquatic AV AQ-SPK3.0-4S reviews

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Hottub speaker

Crutchfield customer from Clifton Twp, PA on 6/16/2019

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This speaker was a perfect fit in my hottub

Pros: Easy fit, looks nice, sounds great.

Cons: None

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Aquatic AV AQ-SPK3.0-4S

Crutchfield customer from Grafton, OH on 6/6/2019

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Working great. Hoping they last more than a couple years.



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Aquatic AV AQ-SPK3.0-4S

Crutchfield customer from Schwenksville, PA on 12/24/2018

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Easy to install, great sounding! Now we will check for longevity in the hot tub environment!!



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More details on the Aquatic AV AQ-SPK3.0-4S

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.

Wiring: The speaker includes 20" of attached wire terminated in a proprietary 2-pin connector. If not using a matching harness, the connector will need to be cut off and the wires spliced directly to any additional extension wire.

  • Green: Positive
  • Yellow: Negative


  • 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.

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Customer Q&A

Crutchfield asked: Why did you buy this?
its the same as the Bluetooth system we have and are the same size needed. [ John  Apr 28, 2019 ]
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 ]

1 question already asked

How to remove old speakers?
[ Larry  Aug 30, 2019 ]
3 answers
Hi. It's very easy. Poop the covers off Just unscrew the three screws from the out side. It might look like it won't come out but the whole thing will come out. You may have to use A tool to pry it out. Remove all our glue. Remove the outer panel to access the plugs.
[ Robert  Aug 31, 2019 ]
Cover pops off, then you remove for Phillips head screws!
[ MICHAEL  Aug 31, 2019 ]
Dont recall if the covers twisted off or if i popped them from side with screwdiver but it wasnt hard, after cover is off, there was 3 or 4 phillip screw driver headed screws to remove then it comes out easy, just dont drop the connection wires down the hole when disconnecting or you may find yourself fishing for them for the reconnection process.
[ james e  Aug 31, 2019 ]

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