Comparison of Shure UHF receivers - Mic Level Outputs

FAQ #3093 Updated October 28, 2008

Question:

I have noticed a difference in the output levels provided by different Shure UHF receivers. What are the actual level differences?

Answer:

Comparison of Shure receivers - Mic Level Outputs

Test Conditions:
Microphone: WL183 omnidirectional lavalier
Acoustic Input: 80 dB SPL of pink noise
Transmitter input gain at maximum
Receiver output gain at maximum

Results:
UC4 receiver XLR output at mic level: -30 dBu
ULX4 receiver XLR output at mic level: -48 dBu
SLX4 receiver XLR output at mic level: -54 dBu
PGX4 receiver XLR output at mic level: -38 dBu
SM58 (wired) output level: -59 dBu

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