• RDL ST-UMX3 3x1 Universal Audio Mixer
1 1

RDL ST-UMX3 3x1 Universal Audio Mixer

RDL ST-UMX3 3x1 Universal Audio Mixer

SoundPro Item: 77503 | Part Number: ST-UMX3

$199.23
$265.64 $199.23
Your Price Sold out
MSRP: $265.64 | MAP: $199.23

Usually ships in 5-7 business days

  • Audio Mixing with Up To Three Inputs
  • Switch-Selectable Mic or Line Inputs
  • Switch-Selectable Mic or Line Output
  • Add Additional Microphone or Line Level Inputs to an Existing Mixer
  • Combine Signals of Different Level, Impedance, or Balanced /Unbalanced Configuration
Log in or register for YOUR best price

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.

View full details

Specifications

Dimensions
Package Dimensions
2 x 2 x 4 in.
Weight
Shipping Weight
0.175 lbs.
WEEE Weight
0.12 lbs.
Electrical
THD+N
< 0.006%
Power Requirement
GROUND-REFERENCED, 24 Vdc @ 55 mA
Audio
Maximum Input Signal
Mic: -18 dBu; Line: +25 dBu
Output
150 Ω balanced; 75Ω unbalanced
Mic (@ 50 Db gain)
< 0.04%
General
Mic
600 Ω
Line
50 kΩ, balanced
NOTE
MIC INPUTS ON ST-UMX3 ARE NOT PROTECTED AGAINST PHANTOM VOLTAGE. USE THE ST-MPA24 or ST-MPA48 MIC PHANTOM ADAPTER.
Headroom
18 dB
Ambient Operating Environment
0° C to 55° C

Why Choose SoundPro?

Since 1972, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.

Start Shopping

  • Certified Account Managers

    Our Account Managers, with 16+ industry certifications, are ready to find your solution.

  • Personalized Pricing

    We know every project is unique. Get a personalized quote anytime you need it

  • Fast Shipping & Local Pickup

    In stock items ship same day if ordered by 4pm CST. Pickup offered in Irving, TX.

  • Accountability from Real People

    We aim for a smooth, transparent experience by setting and sticking to clear expectations.

  • Easy Payments & Financing

    We accept all major credit cards and also offer financing through our partners.

1 2