MD 309 Integrated Amplifier: from our pedigree in pure analog circuitry, we’re proud to introduce our most uncompromising 2-channel Integrated Amplifier. Using the same Hybrid-Acoustic CircuitryTM found in our MD-209 Audio Receiver, JJ 6922 Cryovalve tubes, and stocked with Magnum Dynalab’s unrelenting build quality and audio engineering, the new MD 309 is a future-ready anchor for your high-performance home audio system. We believe it is the best Integrated Amplifier on the market.