ML No585 Overview (v.2) * U.S. MSRP: 12,000 USD Ship Date: Sept/Oct 2014 Working Prototype Introduction: May 14, 2014 Munich High End Show The No 585 is engineered to be the finest integrated amplifier ever created by Mark Levinson or anyone and is the first of a new generation of products to be designed at HARMAN s new state-of-the-art engineering facility located in Shelton, CT, USA. The No 585 is engineered for ultimate audio quality in every respect. It combines exceptional versatility with a powerful Class AB amplifier delivering 200 watts per channel into 8 ohms and 350 watts per channel into 4 ohms and will accommodate a wide variety of digital music sources including high resolution 32- bit/192khz computer audio and DSD over USB. Many owners of high-end systems also want the convenience of playing compressed audio files but do not want to sacrifice sound quality. As an industry first, the No 585 solves this challenge by incorporating HARMAN Clari-Fi processing, which employs proprietary signal-enhancement techniques to any compressed file format selectable at the user s option. Page 1 of 9 Note : * Subject to Minor Revisions
General Features 200 watt amplifier channels from ML No535H offer outstanding sound quality with proven reliability (yellow rectangles). Card cage construction offers flexibility and expandability while providing integral shielding of low-level digital and analog circuitry (pink rectangle). Page 2 of 9
General Features Uppermost slot in card cage (yellow rectangle) accommodates optional MC/MM phono preamp module (Note: we plan to introduce at next year s May 2015 Munich Hi-End Show a No. 585 P version of the integrated amp that includes the phone module for $13,500, and a separate retro-fit module for existing units for $2,500). High-reliability PCI connector (orange rectangle) makes all critical connections to phono preamp circuit board. Page 3 of 9
Power Supplies High-current DC filter mitigates transformer core saturation and hum caused by asymmetric mains waveforms, low-voltage lighting, etc. (orange rectangle). Separate left- and right-channel regulated linear power supplies for all analog circuitry provide maximum signal purity (yellow rectangles). Separate secondary windings for left and right amplifier channels. Oversized 900VA toroidal transformer, shielded and encapsulated for lowest electrical and mechanical noise. Separate 1/8-inch (3.2mm) steel transformer mounting plate (orange rectangle), decoupled from main chassis with rubber bushings (one shown in yellow rectangle) for superior isolation. Page 4 of 9
Power Supplies High-efficiency switching power supply for all digital circuitry, encased in custom shield to reduce radiated noise (orange rectangle). Separate switching supply provides standby power for EuP compliance (yellow rectangle). Page 5 of 9
Digital Audio Board Transformer-coupled coax and AES/EBU digital inputs for maximum signal integrity (orange rectangle). Cirrus Logic S/PDIF receiver with dedicated power supply for critical clock recovery circuitry (red rectangle). CMedia USB audio processor provides asynchronous data transfer of high resolution DSD and PCM files at up to 192kHz/32 bits (yellow rectangle). For lower-resolution audio formats, HARMAN Clari-Fi signal processing reconstructs information and bandwidth lost in compressed file formats restoring higher-fidelity sound. In contrast to competitor offerings, Clari-Fi does not blindly add equalization, bass boost, or other effects that alter the intended listening experience (mounting location shown with gray rectangle). Page 6 of 9
D/A Converter Board ESS Sabre 32-bit D/A chip with balanced current output, 127dB dynamic range, and proprietary jitter-elimination circuit. Fully balanced, discrete I/V circuitry with Bessel antialiasing filters for optimum transient response (orange rectangles). Gain stages use cascoded, large-geometry, low-noise dual JFETs for maximum linearity and signal purity (yellow rectangles). DC servos maintain critical DC levels and eliminate coupling capacitors from signal path. Integral shielding plate protects sensitive low-noise circuitry from radiated highspeed digital signals (red rectangle). Page 7 of 9
Analog Input Board Fully discrete input and output circuitry, with mirror-imaged, dual-mono layout (orange rectangles). Individual signal-switching relays for all inputs, each hermetically sealed with goldplated contacts for highest reliability and signal integrity (yellow rectangles). Output stages use cascoded dual JFETs for maximum linearity, as well as complementary bipolar TO-220 output transistors (green rectangles) operated at high bias current for immunity from capacitive and nonlinear loads. Page 8 of 9
Analog Input Board Input stage (red rectangle) uses cascoded, large-geometry, low-noise, matched dual JFETs (lime rectangle) for maximum linearity and superior rejection of commonmode noise, while employing no global negative feedback. Output stage (yellow rectangle) operates with minimal global negative feedback for optimal output impedance with maximum signal integrity. Three DC servos per channel maintain critical DC levels and eliminate coupling capacitors from signal path (blue rectangle). Volume controls use discrete 15-bit R-2R ladders and low-noise analog switches for widest bandwidth and maximum signal integrity (orange rectangle). Defeatable signal-sensing circuitry helps intelligently save power while being optically-coupled to maintain signal purity (green rectangle). Switchable second-order, 80Hz crossover filter allows for seamless integration in systems with powered subwoofers. Page 9 of 9