Nº52 Highlights
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Two-piece chassis with separate control box and analog box
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Dual Monaural construction and signal paths/routing
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AC regeneration circuitry
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7 Analog inputs: 3 XLR and 4 RCA stereo input pairs
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Phono input with support for both MM and MC cartridges
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Rear-panel USB (A) connector for software updates
General Specifications
| Description | Reference Dual-Monaural Preamplifier |
|---|---|
| Frequency Response | 10Hz – 40kHz (±0.2dB) |
| Frequency Response (Phono) | ±1dB (RIAA response) |
| Input Impedance | Input Impedance (line-level) |
| 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) |
| Phono Inputs | Input Overload (phono) |
| Communication and Control | Volume Control Range |
| Analog Audio Inputs | 3 balanced (female XLR) stereo inputs; 4 single-ended (Mark Levinson-RCA) stereo inputs |
| 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 |
| Gain | Gain (line-level stage) |
| Output Impedance | 20 ohms – balanced (XLR) connectors; 10 ohms – unbalanced (RCA) connectors |
| Power Requirements | Operating Voltage |
Audio Specifications
| Description | Reference Dual-Monaural Preamplifier |
|---|---|
| Frequency Response | 10Hz – 40kHz (±0.2dB) |
| Frequency Response (Phono) | ±1dB (RIAA response) |
| Input Impedance | Input Impedance (line-level) |
| 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) |
| Phono Inputs | Input Overload (phono) |
| Communication and Control | Volume Control Range |
| Analog Audio Inputs | 3 balanced (female XLR) stereo inputs; 4 single-ended (Mark Levinson-RCA) stereo inputs |
| 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 |
| Gain | Gain (line-level stage) |
| Output Impedance | 20 ohms – balanced (XLR) connectors; 10 ohms – unbalanced (RCA) connectors |
| Power Requirements | Operating Voltage |
