RDL STMX2 Two Channel Audio Mixer

Herman # RDLSTMX2
MFR # ST-MX2
RDL

$131.25

RDL RDL

RDL ST-MX2

The ST‑MX2 is used in any application requiring mixing of two audio sources. A mic may be mixed with a line‑level music source. Two mics may be mixed to feed the mic or line level input of a power amplifier. A mic or professional +4 dBu line‑level mono sum is possible. It may be used to convert mono line‑level signals from consumer to professional, or from professional to consumer format. It may also be used as a microphone preamplifier, or conversely to adapt unbalanced or balanced line‑level signals into the microphone input of other equipment.
 
Features:
  • Two Input Audio Mixer
  • Selectable Mic or Line Level Inputs
  • Simultaneous Mic and Line Outputs
  • Add Additional Inputs to an Existing Mixer
  • Audio Output Dual‑LED VU Metering
  • Balanced or Unbalanced Inputs and Outputs
  • Low‑Noise and Low‑Distortion Performance

Inputs (2):

Selectable mic or line

Input Level for +4 dBu output:

Mic: ‑45 dBu to ‑65 dBu; Max input ‑28 dBu
Line: ‑18 dBV to +10 dBu; Max input +22 dBu

Input Impedance:

Input or Output Configuration:

Mic: 200 Ω; Line: 20 kΩ bridging

Balanced or unbalanced

Outputs (2):

Output Impedance:

MIC and LINE

150 Ω (mic or line)

Frequency Response:

Mic:

25 Hz to 50 kHz (+/‑ 1 dB)

Line:

THD+N:

10 Hz to 30 kHz (+/‑ 0.25 dB)

Mic:

< 0.05% 25 to 20 kHz

Line:

< 0.005%

IMD:

Output Level:

< 0.004%

Mic: ‑45 dBu; line: +4 dBu

Headroom:

Mic Input: >22 dB (rel. ‑50 dBu)
Mic Input: >32 dB (rel. ‑60 dBu)
Line Input: >18 dB (rel. +4 dBu)
Output: >20 dB (rel. +4 dBu)

Noise (below +4 dBu):

Mic: <‑70 dB (150 Ω source, 50 dB gain)
Mic: <‑80 dB (200 Ω source, 50 dB gain)
Line: <‑90 dB

CMRR:

Mic:

> 65 dB (50 Hz to 120 Hz)

Line:

> 45 dB (50 Hz to 120 Hz)

Power Requirement:

GROUND‑REFERENCED
24 to 33 Vdc @ 60 mA

Ambient Operating Environment:

0° C to 55° C

Documents
Part NumberPriceQty.

RDLSTMX2

$131.25

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