The Sutherland Insight MM/MC phono stage is a self-contained stereo phono preamp built with two sections in one box. The super regulated power supply resides in one-half of the box, while the critical phono stage sits isolated in the other half. The dual-mono circuit board layout is something normally only seen in much higher end products. Both cartridge loading and phono gain are easily changed by moving jumpers internally. When you pull the cover to make these adjustments, you will be stunned at the made in USA build quality of the Insight and understand why it sounds so good for the money.