Shure LensHopper VP83F User Manual page 18

THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL
[3]
S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
Connector Type
3.5 mm (1/8") dual mono, Unbalanced
Output Impedance
47 Ω
Connector Type
3.5 mm (1/8") dual mono
Output Impedance
5 Ω
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