LABORATORY TEST REPORT

first measured the frequency response and channel separation of the Audio-Technica VNM20EB cartridge with pink noise test signals. Along with square waves, pink noise is one of the most difficult test signals for any phono cartridge, since it requires the stylus to simultaneously reproduce all frequencies across the audio spectrum at the same time, rather than just a single frequency at a time, which is the test used by cartridge manufacturers to specify measured the VNM20EB’s response at 26Hz to 20kHz ±2dB. Channel separation at 1kHz was also excellent, at 22dB. It did diminish somewhat at low frequencies, to a minimum of 12dB at 50Hz, but it also increased a little at higher frequencies, with a best result at 4kHz of 24.5dB.