Yamaha VR4000 is a 2-channel 2-mode stereo guitar amplifier that features an independent 2-channel circuit configuration, and a choice of “A or B” or "A and B” modes. It is compatible with stereo sources, offering separate channel control configurations, parametric equalizers, reverb, and stereo chorus. The newly-developed large-diameter speakers deliver powerful, clean sound. Dual effect loops allow for compatibility with a wide range of external signal processing equipment. Stereo outputs and a stereo headphones jack provide full stereo output.