No. Square speaker frames, corner shapes, cutouts and mounting-hole patterns are not standardized. Match the exact published dimensions to the pod rather than relying on a nominal size or appearance.
Use the recommended RMS range shown on the speaker product page. Confirm the amplifier’s output at the speaker’s impedance and final wiring configuration, then use the manufacturer’s recommended crossover settings.
Choose impedance based on the number of speakers, how they will be wired and the amplifier’s stable load. Calculate the final wired impedance before selecting the amplifier.
For protected interior speaker pods, a standard speaker is generally suitable. Choose a weather-resistant model for pods exposed to moisture, mud, salt or direct outdoor use, and follow the manufacturer’s installation guidance.