Never peak. The R-S202, with two channels of 100 W high-power output* that are above its class, has a high-quality sound design that minimizes the length of signal routes and optimizes the circuit layout. Positioning the power transformer near the amp circuit reduces power loss while improving peak power supply capacity to enable high volume output. The signal ground and power supply ground connect at one point, eliminating mutual interference to achieve a higher S/N ratio. The result is sound clarity stripped of noise and other signals Connect wirelessly. The R-S202 provides Bluetooth functionality to let you enjoy streaming music from smart phones and other devices. Use your device to select the songs from your library and hear them with the legendary quality of Yamaha sound.