Experience the vibrancy of our home sound system. A great sound system relies on a great amplifier--they're an integral element to a full soundscape. Create a multi-room audio environment, build a home theater, or expand your system to the outdoors. Our gold standard Class A amplifiers will fit your every need. This Versatility A AMP800VS system has 8 independent channels rated at a power output of 40 watts into 8 ohms. It has a power output of 40 watts RMS per channel into 4 ohms. 4 x 80 watts are bridged to an output at 8 ohms. Born out of Portland, Oregon, AudioSource began designing and manufacturing high-grade, affordable, and great sounding audio products in 1978. Our goal is to exceed your expectations for value and performance. Specifications: Input Sensitivity: Variable, .350mV to 2.8V for rated power at 8 ohms. Frequency response: 10Hz to 50kHz. Channel Crosstalk: 70 dB. Less than 0.2% THD into 8 ohms at rated power. S/N Ratio: 100 dB A-weighted.