Name: RDL ST-UMX3 3x1 Universal Audio Mixer-3 microphone or line inputs
Brand: Radio Design Labs
SKU: ST-UMX3
Price: 193.43 USD
Availability: InStock

Item 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 dBu
Gain (each input):	Mic: Adjustable from OFF to 60 dB Line: Adjustable from OFF to 21 dB
Output:	150 Ω balanced; 75 Ω unbalanced
Output Signal:	Mic: 50 dB below line level Line: +4 dBu nominal
THD+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 dB
CMRR:	Mic: > 60 dB Line: > 50 dB, (50 to 120 Hz)
Power Requirement:	GROUND-REFERENCED, 24 to 33 Vdc @ 55 mA
Ambient Operating Environment:	0° C to 55° C

More Info

More Information

Brand

Radio Design Labs

Manufacturer

Radio Design Labs

SKU

ST-UMX3

UPC

813721012265

Part No

ST-UMX3

Weight (lb.)

0.5

Product Datasheet

st-umx3.pdf

Unit

EACH

Carton Quantity

1

Short Description

The ST-UMX3 is a three-channel audio mixer for combining mic-level or line-level signals to a single output. A MIC/LINE switch is provided for each input. A separate MIC/ LINE switch selects the output level. Each input features a separate preamplifier circuit, which isolates it from the other inputs. An audio taper single turn gain adjustment is provided for each of the three input preamps. Signals from the three preamps are actively summed and fed to the output amplifier which includes an RDL® dual-LED VU meter.

Each input level is set while observing the LED output level meter. The dual-LED output meter follows standard VU ballistics. The intensity of the green LED progresses from minimum at -11 dBu to full intensity at +4 dBu.

The flexibility of switching each input and the output between MIC or LINE allows installers to address a wide variety of mixing solutions with only one product type.

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 dBu
Gain (each input):	Mic: Adjustable from OFF to 60 dB Line: Adjustable from OFF to 21 dB
Output:	150 Ω balanced; 75 Ω unbalanced
Output Signal:	Mic: 50 dB below line level Line: +4 dBu nominal
THD+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 dB
CMRR:	Mic: > 60 dB Line: > 50 dB, (50 to 120 Hz)
Power Requirement:	GROUND-REFERENCED, 24 to 33 Vdc @ 55 mA
Ambient Operating Environment:	0° C to 55° C