Phono Preamp for MC and MM Cartridges
SPECIFICATIONS
Gain 1 = L, Gain 2 = L (Decca Mode) Gain: 30dB THD: <0.005%, A-weighted, at 1V RMS SNR: >90dB, A-weighted, inputs shorted Crosstalk: -75dB, 20-20kHz Sensitivity: 9mV for 300mV output Overload Margin: >20dBGain 1 = L, Gain 2 = H (Standard MM Mode) Gain: 42dB THD: <0.008%, A-weighted, at 1V RMS SNR: >82dB, A-weighted, inputs shorted Crosstalk: -75dB, 20-20kHz Sensitivity: 2.3mV for 300mV output Overload Margin: >20dBGain 1 = H, Gain 2 = L (Low Output MM/High Output MC Mode) Gain: 48dB THD: <0.01%, A-weighted, at 1V RMS SNR: >80dB, A-weighted, inputs shorted Crosstalk: -75dB, 20-20kHz Sensitivity: 1.3mV for 300mV output Overload Margin: >20dBGain 1 = H, Gain 2 = H (MC Mode) Gain: 59dB THD: <0.03%, A-weighted, at 1V RMS SNR: >70dB, A-weighted, inputs shorted Crosstalk: -75dB, 20-20kHz Sensitivity: 0.3mV for 300mV output Overload Margin: >20dBInput Impedance: Selectable 47 ohms (typical for MC cartridges) or 47k ohms (typical for MM cartridges) RIAA Accuracy: +/- 0.2dB, 20-20kHz Output Impedance: 75 ohms Topology: Fully passive RIAA network with ADA4897 and AD8066 gain stages, thin-film resistors, and film capacitors throughout Power Supply: “wall wart” style 16VAC transformer, regulated +/- 5V rails Power Consumption: 4W Size: 5 x 3.5 x 1.25” Weight: 1 lb
*All measurements made on a Stanford Research SR1+ Audio Analyzer
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