No Products in the Cart
The Mark Levinson № 523 is the definitive preamplifier for the analog music lover. Six line-level analog and phono inputs travel through the Mark Levinson proprietary Pure Path discrete, direct-coupled, fully balanced, dual-monaural signal path for breathtaking purity and performance.
With precision control including a discrete, balanced R-2R Ladder volume control, class-A Pure Phono stage, and class-A Main Drive Headphone output, the № 523 preamplifier delivers an uncompromising performance regardless of analog source.
Housed in a 6000-series aluminum chassis, like all Mark Levinson equipment, the № 523 is designed and handcrafted in the USA.
| Line Stage Gain, Normal Gain Setting | 13.5dB balanced; 7.5dB single-ended |
|---|---|
| Line Stage Frequency Response, 20Hz to 20KHz | ±0.02dB |
| Line Stage Frequency Response, 0.4Hz to 370Hz | +0.1 / -3dB |
| THD+N @ 1KHz (2VRMS Single-Ended or 4VRMS Balanced Output) | <0.003% |
| Signal-to-Noise Ratio (REF. To 2VRMS Single-Ended or 4VRMS Balanced, Max Vol.) | >115dB @ 1kHz |
| Crosstalk @ 1KHz | <-107dB |
| Channel Separation | Below Noise Floor (>115dB @ 1KHz) |
| Input Impedance | >45kΩ |
| Output Impedance | <80Ω single ended, <160Ω balanced |
| Maximum Input Level, Normal Gain Setting | >10VRMS, single ended, >15VRMS, balanced |
| Maximum Output Level | >11VRMS single ended, >22VRMS balanced |
| Headphone Output Impedance | selectable; <3Ω or 75Ω |
| Headphone Maximum Output, Low Impedance Setting, 300Ω, 20Hz TO 20KHz, <0.1% THD | |
| Headphone THD+N, 20Hz TO 20KHz, 2V RMS | <0.03% @ 30Ω, <0.01% @ 300Ω |
| RIAA Frequency Response | 20Hz to 20kHz, ±0.3dB |
| Infrasonic Filter | Defeatable, 15Hz, 2nd order (12dB/octave) |
| Moving Magnet Mode, Input Resistance | 47 47kΩ |
| Moving Magnet Mode, Input Capacitance | Selectable; 50, 100, 150, 200, or 680pF |
| Moving Magnet Mode, Gain | 40dB @ 1kHz |
| Moving Magnet Mode, THD+N, 20Hz to 20KHz, 2VRMS Output | <0.03% |
| Moving Coil Mode, Input Resistance | selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47kΩ |
| Moving Coil Mode, Input Capacitance | 50pF |
| Moving Coil Mode, Gain | Selectable; 50, 60, or 70dB @ 1kHz |
| Moving Coil Mode, THD+N, 20Hz to 20KHz, 2VRMS Output | <0.02%, 50 or 60dB settings, <0.04, 70db setting |
| Analog Inputs | 2 balanced (XLR), 3 single-ended (RCA) line, 1 single-ended (RCA) phono w/ ground |
| Analog Outputs | 1 balanced (XLR); 1 pair single-ended (RCA), 1 headphone (¼”, 6.3mm TS) |
| Control Connectors | Ethernet (RJ45), RS-232 (RJ12), Trigger In and Out, IR In, USB-A, Mini USB |
| Mains Voltage | 100VAC, 115VAC, or 230VAC, factory set |
| Power Consumption | 0.4W Green Standby, 5W Power Save, 67W Normal Standby, 70W On, idle |
| Dimensions | Height (with feet) |
| Net weight | 39 lbs (17.7kg) |
| Shipping weight | 58 lbs (26.3kg) |
