This is a like new Audio Alchemy OM-150 amplifier with the PSU-150 separate power supply. It comes with all original packaging and manuals. This is an outstanding amplifier- ESPECIALLY for the money we are talking here! The OM-150 delivers real power with the refinement that comes from substantial Class A biasing. This amplifier has a well reviewed following and is known for it's warmth with the power to provide controlled and detailed bass. This particular unit was one of the last acquired directly from Audio Alchemy. It is literally like new in every way. Nice opportunity here.