RDL ST-UMX3 Audio Mixer 3 Mic or Line x 1 Mic or Line, Balanced Unbalanced Configuration
Amazon Price as of 06/19/2025 10:12 GMT+00:00
-2%
$187.96
$192.95
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average price $191.82
$3.86 cheaper than average
$189.33
$192.06
Product Description
Inputs (3): Mic: 600 Ω; Line: 50 kΩ, balanced NOTE: MIC INPUTS ON ST-UMX3 ARE NOT PROTECTED AGAINST PHANTOM VOLTAGE. USE THE ST-MPA2 MIC PHANTOM ADAPTER.Maximum Input Signal: Mic: -18 dBu; Line: +25 dBuGain (each input): Mic: Adjustable from OFF to 60 dB Line: Adjustable from OFF to 21 dBOutput: 150 Ω balanced; 75 Ω unbalancedOutput Signal: Mic: 50 dB below line level Line: +4 dBu nominalTHD+N: <0.006%IMD: Mic (@ 50dB gain): <0.04% Line: <0.008%Freq. Response: Mic: 50 Hz to 100 kHz (+/- 1 dB) Line: 10 Hz to 100 kHz (+/- 0.05 dB)Noise (each input): Mic: <-70 dB (50 dB gain) Line: <-82 dB (unity gain)Headroom: 18 dBCMRR: 60 dB 50 dB, (50 to 120 Hz)Power Requirement: GROUND-REFERENCED, 24 to 33 Vdc @ 55 mAAmbient Operating Environment:0 C to 55 C
• The ST-UMX3 is a three-channel audio mixer for combining mic-level or line-level signals to a single
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