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JackStraw's picture
Last seen: 3 years 1 month ago
Joined: Jul 16 2019 - 10:11am
Choosing a 5-1/2" speaker.

Hey folks. I'm using a TPA3118 Class D, mono, 60w amp. My application requires that I use a single 5-1/2" speaker, with the left and right channels summed prior to amplification. The amp is powered by batteries... generally around 10-13 volts depending on the charge level. The 5-1/2" coax speakers I find are generally meant for automobile applications, and are almost always 4 ohm. Given that setup, does that mean i need to get a speaker with an RMS rating of at least 60w?

Here is the actual amp module that i use:

Thanks for any advice you can offer!

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