QR Code Link to This Post SoundTube Entertainment RS800i 8" Coaxial Open-Ceiling indoor/outdoor Speaker two-way ported with an open-ceiling enclosure design that delivers effective low-end response (from 58 Hz to 22 kHz @ -10 dB). suitable for big box stores, fitness centers, sports bars, multi-purpose rooms, places of worship, airports, theme parks, ballrooms, convention centers, casinos, and other open-ceiling applications. It has maximum program power rating of 250 Watts and maximum continuous power RMS of 125 Watts. It measures 14.820 Inch diameter x 17.230.