This difference is really important and often overlooked – mix the music to mono. Yes, your audio system delivers music in a stereo format, but stereo doesn’t work well underwater. More on the problems with stereo at the end of this blog. When you mix to mono, every underwater speaker is delivering the same rich audio experience for the swimmers. If you use a phone to source your music, you can switch the music to mono in the accessibility settings.
This difference is critically important. Use an amplifier that delivers enough power to drive an underwater speaker. When we recommend an amplifier rated at 125 – 150 watts into 4 ohms, we mean it. The Diluvio™ Underwater Loudspeaker requires sufficient power to cleanly drive audio into a high mass substance like water. If you use an amplifier with a lower power rating, the underwater sound may be distorted.
Before you select an amplifier, look closely at the specifications, and perhaps the reviews. That cheap amp you found online may not be a good choice. Lately I’ve seen a bunch of amplifiers whose specs say they deliver 150 watts into 4 ohms. After looking at the amplifier’s internal electronics, I can assuredly say that these amps only deliver in the neighborhood of 50 watts into 4 ohms. Cheap junk. If you use one of these cheap amps, your speakers will not have much volume and may sound terrible.
Finally, use a high quality, full frequency underwater speaker, like the AQ339 Diluvio™ Underwater Loudspeaker. There are other speakers in the market with limited frequency response. Those speakers just can’t deliver great underwater audio. To help with your shopping, click here to see our Underwater Speakers Buyer’s Guide.