No585.5

About the No585.5

The Mark Levinson No585.5 is a high-end fully discrete integrated amplifier that builds upon the acclaimed No585 model by adding the Pure Phono stage found in the award-winning No523 and No526 preamplifiers. It features a fully discrete, mirror-imaged, dual-monaural analog circuitry with individual signal switching relays for each of its five stereo inputs (one balanced XLR, three RCA, plus a dedicated stereo Pure Phono stage). The Pure Phono stage includes a moving coil (MC) section with three gain settings and ten resistive cartridge-loading settings, five capacitive loading settings for moving magnet (MM), and an infrasonic filter to compensate for rumble and warped records. The volume control uses discrete R2R ladders and low-noise analog switches for wide bandwidth and maximum signal integrity. The amplifier delivers 200 watts per channel into 8 ohms and up to 350 watts into 4 ohms, powered by a fully differential Class AB power stage with an oversized 900VA toroidal transformer and twelve output transistors per channel for excellent transient response. Digital audio processing is handled by an ESS Sabre 32-bit DAC with proprietary jitter elimination, supporting six digital inputs including asynchronous USB, AES/EBU, coaxial, and optical inputs, with support for 32-bit/192kHz PCM and native DSD formats. The No585.5 also incorporates HARMAN Clari-Fi music restoration technology to enhance compressed digital audio sources. Additional features include a subwoofer output with a selectable 80Hz high-pass filter for 2.1-channel system integration, Ethernet, RS-232, IR input, and 12V trigger ports for system control integration. The amplifier is highly regarded for its neutral tonality, precise soundstage, and robust build quality, making it one of the finest integrated amplifiers available.