The pure analog connections and HDAM SA-3 circuitry within the silver-gold MODEL 50 Stereo 140W Integrated Amplifier from Marantz work to eliminate background noise and interference; leaving you with a warm, rich sound that's precise, detailed, and balanced. Add your favorite loudspeakers to enjoy the dynamic range of 70W per channel of Class A/B amplification at 8 ohms from up to six components. The MODEL 50 supports bi-amplification for less interference and maximum power to each speaker driver. If your sources include a turntable, it will enjoy a dedicated phono MM stage that is meant to add nuance and tone to your record collection. Elegantly designed, the metal front panel features analog control knobs, an OLED porthole status display, and headphone output.