SRA Convection-Cooled Amplifiers are advanced, efficient single-space amplifiers perfect for installations with modest power requirements. The SRA Series makes it a snap to get exactly what you need and nothing you don’t. Housed in compact single rack space chassis and weighing only 10 lbs, SRA Convection-Cooled Amplifiers are designed to drive 4 or 8-ohm loads. Choose from 4 models available in 2 and 4-channel configurations with power ratings of 75W and 150W per channel. The 150W models are capable of driving 25V constant voltage lines directly. Switch mode power supplies and Class-D amplifier circuitry provide an extremely power efficient solution.