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Stereo Audio Input Switcher - 4X1

Radio Design Labs regular price - $ 229.95

  • 13695
  • Save $ 9300

The EZ-SX4 is a stereo audio source selector with an output volume control that adjusts the line-level output. This unit is ideal as a four input source selector feeding an associated audio amplifier. The user can conveniently select an audio source and adjust the level on the front panel. The EZ-SX4 is used in stores, houses of worship, restaurants, clubs, home component systems and commercial sound systems. MADE IN USA.


  • Four Input Source Selection
  • Unbalanced Stereo Audio Inputs and Output
  • Inputs and Line Output on Rear-Panel RCA Jacks
  • Line Output Level Controlled by Front-Panel Knob
  • Full-Size Interlocking Pushbuttons on Front Panel


  • Easy-to-Push Large Buttons
  • Solid-State Audio Switching
  • Switch Noise Cannot Affect Signal Quality
  • Select Source and Set Volume at One Location
  • Connect Directly to a Power Amp as the User Interface
  • Gold Plated RCA Input and Output Jacks


Inputs (4):                                                         Stereo on dual RCA jacks,
                                                                         > 10 kΩ, -10 dBV nominal, +10 dBV max.

LEVEL control:                                                 Off to +12 dB gain

Output:                                                            Stereo on dual RCA jacks, line level,
                                                                        -10 dBV nominal, +17 dBV max.

Frequency Response:                                     10 Hz to 20 kHz (±0.01 dB)

THD+N:                                                           < 0.02%

Crosstalk:                                                        < -70 dB (1 kHz)

Noise:                                                              < -80 dB (below -10 dBV)

24 Vdc power supply current:                          30 mA (idle), 60 mA (max.)

Case dimensions:                                           5.75” (14.6 cm)W x 5” (12.7 cm)D

Mounting size:                                                1/3 rack width

Package Type:                                               Cardboard Box

Package Dimensions:                                     9.5 x 7 x 2.25 in.

Shipping Weight:                                            1.2 lbs.

WEEE weight:                                                 0.795 lbs.

Tariff code:                                                     8518.40.2000

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