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No523 Dual-Monaural Preamplifier for Analog Sources
Pure Path circuit-design philosophy includes a discrete, direct-coupled, fully balanced, dual-monaural signal path that delivers unrestricted, uncompromised sonic purity.
The Fine Art of Control
Six analog line-level and phono inputs travel through the Mark Levinson proprietary Pure Path discrete, direct-coupled, fully balanced, dual-monaural signal path entirely in class A for breathtaking purity and performance.
Precision Signal Processing
By using a discrete, balanced R-2R Ladder volume control, Pure Phono stage, and HARMAN Clari-Fi® music restoration technology, the No523 preamplifier delivers uncompromising performance regardless of source.
The No523 delivers signal to balanced and single-ended stereo outputs, as well as a Main Drive Headphone output integrated into the front panel. The headphone amp circuit drives up to 32-ohm headphones in class A by employing the main output circuit rather than a secondary signal path.
A selectable fourth-order 80Hz high-pass filter enables seamless integration of subwoofers, and unity- gain SSP mode enables home theater integration.
For modern system integration capabilities, Ethernet, RS-232, DC triggers, infrared remote control and input, and USB for monitoring and network control are included.
The Pure Phono stage is a discrete design with no op-amps and operates exclusively in class A throughout, employing tantalum nitride thin-film resistors and polypropylene capacitors with exceptionally low tolerances, and physically separated channels for MC and MM.
Made in the USA
Mark Levinson equipment is designed at the HARMAN Engineering Center of Excellence in Shelton, CT, prototyped in-house, and handcrafted exclusively at an ISO 9001 facility in Massachusetts under strict Mark Levinson engineering and quality supervision.
Housed in an aircraft-grade 6063-T5 extruded aluminum chassis, the No523 features extremely high build precision, to exceedingly low tolerances.