Mark Levinson #52 - Specifications

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52 RefeReNce PReamPlifieR / Quick-Start Guide
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SPecificationS
Power Consumption: 65W (maximum)
Operating Voltage: 100V – 240V AC, 50Hz/60Hz
Gain (line-level stage): 0dB, +6dB, +12dB, or +18dB (user-selectable)
Gain (phono stage): +40dB, +60dB @1kHz (user-selectable)
Volume Control Range: 80.0dB
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)
Input Overload (line-level):
Gain
+18dB
+12dB
+6dB
0dB
XLR Inputs
2V
4V
8V
16V
RCA Inputs
1V
2V
4V
8V
Input Overload (phono): >100mV @1kHz (40dB gain);
>10mV @1kHz (60dB gain)
Input Impedance (line-level): 100k ohms
Input Impedance (phono):
Resistive:
Capacitive:
3.3Ω, 5.0Ω, 7.7Ω, 10Ω, 33Ω, 50Ω, 77Ω, 100Ω, 330Ω, 47kΩ (user-selectable)
50pF, 100pF, 150pF, 200pF, 250pF, 300pF, 350pF, 0.01µF (user-selectable)
Output Impedance: <20 ohms – balanced (XLR) connectors
<10 ohms – unbalanced (RCA) connectors
Maximum Main Output: 16V – balanced (XLR) connectors
8V – unbalanced (RCA) connectors
THD + N: <0.001% (balanced line-level); <0.02% (phono)
Crosstalk: <120dB (any input to any output, input unterminated)
<140dB (any input to any output, input terminated)
Residual Noise: <120dB (20Hz – 20kHz, input terminated, balanced)
Frequency Response (line-level): 10Hz – 40kHz (±0.2dB)
Frequency Response (phono): ±1dB (RIAA response)
Overall Dimensions (H x W x D): Controller – 3-1/4" (w/feet) x 17-1/4" x 13" (79mm x 438mm x 330mm);
Preamplifier – 5-1/2" (w/feet) x 17-1/4" x 13" (140mm x 438mm x 330mm)
Net Weight: Controller – 25 lb (11.4kg);
Preamplifier – 35 lb (15.9kg)
SPecificationS