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Tested - Good Working OrderThe PreSonus TubePre is a single-channel, tube-driven microphone/instrument preamp designed to add warmth, tube saturation, and clean gain to your signal before entering an audio interface, mixer, or PA system.Front Panel Controls & FeaturesDrive: Controls the amount of signal sent through the internal 12AX7 vacuum tube. Lower settings keep the signal clean; cranking it adds harmonic saturation and grit.Clip LED: Illuminates red when the internal signal is peaking or distorting overload points.Phase Invert (\varnothing): Reverses the polarity 180^\circ—useful for correcting phase cancellation issues when multi-miking a source.PAD (-20 dB): Attenuates high-output input signals (like hot condenser mics or active instruments) to prevent input clipping.80Hz High-Pass Filter: Cuts low-end rumble, stage noise, or proximity effect pop.+48V Phantom Power: Engages power for condenser microphones through the rear XLR input.VU Meter: Displays output signal level.Power Requirement:The included adapter is a 16VAC / 1000mA (16 Volts AC) transformer.
