Pro-Ject Amp Box RS is a high-end stereo power amplifier capable of delivering exceptional sound quality and versatility for audiophiles. With its fully balanced double mono design, highly efficient energy-saving PWM modules, and tube buffer input stage, it offers precise 3-dimensional sound-staging, pristine micro dynamics, and ultimate resolution. Its 2-ohm drive capability and upgradable PS Box RS for more power make it ideal for Bi- or Tri-Amping applications. Partnered with the Pre Box RS, it's the perfect system for the true audiophile seeking pure sound experience.