Measurement conditions
EM source: white noise player through speaker
Measurement device position: 4 cm from the speaker coil
Recording device: Olympus LS-11 (Gain: 10, High sensitivity)
FFT plot: 65536 window size, Blackman-Harris
Generic eBay coil
Peak Amplitude: -11,25 dB
Total RMS Amplitude: -22,93 db
Japanese vintage coil
Peak Amplitude: -10,46 dB
Total RMS Amplitude: -22,84 db
Elektrouši
Peak Amplitude: -6,34 dB
Total RMS Amplitude: -17,64 db
Elektrouši Pro
Peak Amplitude: -2,52 dB
Total RMS Amplitude: -13,26 db