Tube Preamp Reviews

Conrad-Johnson ART Preamplifier Fig.4 spectrum 10V/600 ohms


Fig.4 Conrad-Johnson ART, spectrum of 50Hz sinewave, DC-1kHz, at 10V into 600 ohms with volume control at "66" (linear frequency scale). Note that the second harmonic is the highest in level at -50dB (0.3%).

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