Tube Preamp Reviews

Conrad-Johnson ART Preamplifier Fig.3 spectrum 1V/110k ohms


Fig.3 Conrad-Johnson ART, spectrum of 50Hz sinewave, DC-1kHz, at 1V into 100k ohms with volume control at "66" (linear frequency scale). Note that the second harmonic is the highest in level at -57dB (0.14%).

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