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Mark Levinson Nº52 Preamplifier

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Raising the Standard for Ultrahigh-end Luxury Audio

The Nº52 comes with a unity-gain SSP mode that integrates the connected sources into a home theater system while still maintaining optimal and independent stereo operation for music. System controls include Ethernet, Mark Levinson’s proprietary ML Net, and 12V trigger and IR control ports, as well as a USB connector that can facilitate software updates. Additionally, the included remote control also operates both the Nº52 and other connected Mark Levinson components. The peerless craftsmanship of Mark Levinson is evident in every aspect of the Nº52. Within the control section, mirror-imaged DC power supplies and AC regeneration circuitry optimize power for the cleanest, most stable signals possible. Individual DC power cords supply power to the audio section in the second chassis to prevent extraneous noise from passing into the DC power signals, while communication and control signals are sent along a dedicated third cable to the audio section. The audio chassis is also configured in a mirror-image, left/right design with isolated, independent PCBs for volume control and for main and auxiliary signal paths. The communication signals are contained in a shielded central compartment, as is each channel of the phono input. Heavy aluminum extrusions and thick aluminum plates solidify the chassis and provide an optimized foundation for the audio circuitry.

Features and Benefits


Two-piece chassis with separate control box and analog box


Dual Monaural construction and signal paths/routing


AC regeneration circuitry


7 Analog inputs: 3 XLR and 4 RCA stereo input pairs


Phono input with support for both MM and MC cartridges


Aux output path: 1 XLR and 1 RCA stereo pairs w/ fixed/variable volume and independent source selection


Main outputs: 2 XLR and 2 RCA stereo pairs (identical w/ volume)


Ethernet, RS-232, IR and 12V trigger system control ports


Rear-panel USB (A) connector for software updates


System remote control

Detailed Specifications:


Two-piece chassis with separate control box and analog box


Dual Monaural construction and signal paths/routing


AC regeneration circuitry


Analog Audio Inputs: 3 balanced (female XLR) stereo inputs; 4 single-ended (Mark Levinson-RCA) stereo inputs


Phono Input: Support for both MM and MC cartridges


Phono inputs: Input Overload (phono): >100mV @1kHz (40dB gain); >10mV @1kHz (60dB gain)


Aux output path: 1 XLR and 1 RCA stereo pairs w/ fixed/variable volume and independent source selection


Analog Audio Outputs: 1 balanced (male XLR) stereo main output; 1 single-ended (Mark Levinson-RCA) stereo main output; 2 single-ended (Mark Levinson-RCA) stereo record outputs


Maximum Output Level: 16V – balanced (XLR) connectors; 8V – unbalanced (RCA) connectors


Signal-to-noise Ratio: Residual Noise: < 120dB (20Hz – 20kHz, input terminated,balanced)


Gain: Gain (line-level stage): 0dB, +6dB, +12dB, or +18dB (user-selectable) Gain (phono stage): +40dB, +60dB @1kHz (user-selectable) Gain Resolution: 1.0dB increments up to 23.0dB on display (–57dB to –80dB); 0.1dB increments above 23.0dB on display (0dB to –57dB)


Volume Control Range: 80.0dB


Frequency Response: 10Hz – 40kHz (±0.2dB)


Frequency Response (Phono): ±1dB (RIAA response)


Input Impedance: Line-Level: 100k ohms Input Impedance (phono): Resistive: 3.3Ω, 5.0Ω, 7.7Ω, 10Ω, 33Ω, 50Ω, 77Ω, 100Ω, 330Ω, 47kΩ, (user-selectable) Capacitive: 50pF, 100pF, 150pF, 200pF, 250pF, 300pF, 350pF, 0.01μF (user-selectable)


Output Impedence: 20 ohms – balanced (XLR) connectors; 10 ohms – unbalanced (RCA) connectors


Power Consumption: 65W (maximum)


System Control Ports: Ethernet, RS-232, IR and 12V trigger (Rear-panel USB (A) connector for software updates)


System remote control


Size: Height – 8.75″ (22.2 cm) [Control = 3.25″ (8.2 cm); Audio = 5.5″ (14 cm)] / Width – 17.25″ (43.8 cm) / Depth – 13″ (33 cm)


Weight: 60 lb (27 kg) Control = 25 lb (11 kg); Audio = 35 lb (16 kg)

May-2014-Hifi-News-Mark-Levinson-No52-Review---Icon Hifi News – May 2014 Issue – Mark Levinson No52 Review

Documentation to be added soon . . .