Samson S500 is a dual-channel power amplifier designed for live sound and fixed installations. It delivers 150 W per channel into 8 ohms, 250 W per channel into 4 ohms, and 500 W into 8 ohms when bridged. Features include a temperature-sensitive, speed-controlled fan, independent front-panel input level controls with 41 detents and three-segment output meters, overheating and over-current protection, XLR and locking TRS inputs, banana/Speakon outputs, and parallel outputs for linking multiple units.