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Retail $999Preamp:1.0Vrms output into 47kohm at 1kHz has 0.0021% THD, higher output amplitudes will track similarly to HPA output below as signal from HPA is fed to an opamp buffer to driver the preamp outputs.Headphone Amp with 33ohm load:3.8 mW is 0.0036% THD30 mW is 0.0036% THD60 mW is 0.0037% THD293 mW is 0.0055% THD620 mW is 0.0072% THD1.7W is 0.011% THD (Max Power)Intermodulation distortionN/APower Consumption1.6W (standby – plugged in) and 12.5W (on) measured at 120VacFrequency ResponseFlat within +/-0.5dB from 10Hz to 22kHzGain0dB, 6dB, 12dB selectableNoisePreamp: -115dB noise floor referenced to 1.0Vrms at 0dB for preamp output into 47kohm loadHeadphone Amp: -122dB noise floor referenced to 1.0Vrms at 0dB into 33ohmsMaximum Output Sensitivity1.86Vrms input at 12dB gain setting will produce maximum signal before clipping at the headphone amp outputThe preamp outputs have -6dB gain applied to them, and so their gains are -6dB, 0dB, and +6dB (corresponding to the 0dB, 6dB, and 12dB gain switch for the headphone amp) at the RCA’s out.Maximum Output of the preamp outs is 3.7Vrms for 1.86Vrms input at the 12dB gain setting.HEADPHONE:Output Power1.7 Wrms into 33ohmsOutput Impedance13 ohms (per TI datasheet for TPA6120A2)
