The Jeff Rowland Coherence II is a high-quality audiophile stereo preamplifier designed to enhance the sound quality of your home audio system. This preamplifier, made by the renowned brand Jeff Rowland, is known for its superior performance and Coherence II model offers exceptional sound clarity and detail. The product comes with its original case, making it easy to store and protect when not in use, ensuring your investment is well-maintained for years to come.