Samson SM4 4-Channel Rack-Mountable Mixer with Bluetooth - Manual (Page 7)

SM4 4-Channel Mixer 5
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1. Power Switch - Use this switch to turn the SM4 on and off. To avoid potential damage to
your speakers, turn the SM4 on before you turn on any connected power amps, and turn it
off after the power amps are turned off.
2. Power Indicator - LED lights white indicating the unit is powered on.
3. MIC Volume - This knob controls the level of the MIC input.
4. BASS Equalizer Knob - Controls the MIC channel low frequency band, +/- 15dB at 100Hz.
5. TREBLE Equalizer Knob - Controls the MIC channel high frequency band, +/- 15dB at
10kHz.
6. MUSIC Volume - This knob controls the level of the Music inputs (rear panel RCA, front
panel 1/4” and 1/8”) and the Bluetooth® audio .
7. VOICEOVER - Controls the level the Music channel and Bluetooth audio will be lowered
when there is signal on the Mic channel.
8. 1/8” (3.5mm) Music Input - Stereo 1/8” (3.5mm) jack to connect line level sources. Level
of this input is controlled by the MUSIC Volume knob.
9. 1/4” Music Input - Stereo 1/4” jack to connect line level sources. Level of this input is
controlled by the MUSIC Volume knob.
10. Pairing Indicator - Displays the Bluetooth status of the SM4.
11. Pairing Button - Press and hold this button to enable discoverable mode in order to pair with
a Bluetooth audio device.
12. Samson XPD WIRELESS USB Input - Connect an optional Samson XPD USB Digital Wireless
receiver to this input. The wireless level is controlled by the MIC Volume control. The USB
connector supplies 5V 200mA at of power to charge a small portable USB device like an
MP3 player or smartphone.
13. Bluetooth Antenna - This antenna receives signal from a paired device and should be placed
in a vertical position when using the Bluetooth . The Bluetooth receiver has a range of
approximately 100’ (30m).
Front Panel Callouts