The rear panel offers several filtering options, the YS activation switch, and a mode switch the amplifier supports stereo, bridged, and parallel operation. There is a comprehensive group of bright, color-coded LED activity indicators, and the front panel channel attenuator knobs are thoughtfully recessed and protectively covered. Yamaha has built a lot of value into the P3500S and made it available to budget-conscious schools, club date musicians, and event facilities at a very reasonable price.
Rack-mountable stereo power amplifier with 350 watts per channel at 8 ohms EEEngine (Energy Efficient Engine) technology for high power output with half the energy consumption of conventional amplifier designs Proprietary YS processing with dedicated on/off switch optimizes amplifier output for use with Yamaha Club Series speakers Amplifier overload limiting protection circuitry includes power on/off muting, DC detection, thermal protection, and current limiting Variable speed fan cooling Sweepable rear panel low end frequency control knobs, low cut/subwoofer filter switches Rear panel stereo/bridge/parallel operation mode switch Recessed front panel attenuator controls with protective cover Front panel LED indicators for power, protection, temperature, YS processing, signal, and clip Vented front and rear panels