At Music Direct, we pride ourselves on offering the largest, most diverse assortment of audio gear and music available anywhere. Among the many brands we proudly support, Marantz has set the gold standard. One key factor in Marantz's success has been the engineering innovations devised by the company's longtime Sound Master, Ken Ishiwata, a revered figure in the audiophile world. As Ken approached his 40th anniversary with the company, he assembled a team of engineers to create a final, exemplary project. Remarkably, the result was two sonic masterpieces: the KI Ruby Reference Series Components. The Marantz PM-KI Ruby Integrated Amplifier and the SA-KI Ruby SACD/CD Player and DAC were both personally fine-tuned by Ken, and they were designed to make rapturous music together. This integrated amplifier and CD player are more than just examples of groundbreaking, cutting-edge technology: They benefit from the collected knowledge of the entire Marantz engineering team, and they embody Ken's lifelong desire to elevate the musical experience into something more than just pressing a power button. Purchase your Marantz KI-Ruby Components with the confidence that comes with Music Direct's industry-leading 60-day Money Back Guarantee.