Crutchfield Customer Review (What's this?)
If your business needs an audio system controller for playing background music and making announcements, Samson's SM4 4-channel audio mixer may be the perfect solution. You can play music from multiple sources, like mobile devices via headphone connections, or an installed player via stereo patch cords. You can also stream music wirelessly to the SM4 from a smartphone or tablet.
A clever feature is the USB port on the front panel. You can use this as another mic input with a Samson Stage XPD1 Headset or Presentation wireless microphone system. You can also use the USB port to charge a portable device. You can set the mixer's output to Mono, compatible with most commercial amplifier applications, or Stereo, for higher-quality sound in a lobby or showroom, for example.
Whether using a wired or wireless microphone, the SM4 will automatically duck (turn down) the music for vocal announcements. A Voiceover control adjusts how much the music gets turned down, while a Voiceover Hold adjusts the time it takes for the music to return to pre-announcement level.
Samson SM4 connection panel
Average Customer Review(s):
Overview: The Samson SM4 is a 4-channel mixer designed for commercial installations, such as restaurants, gyms, night clubs, and schools. It features a balanced microphone input with 2-band EQ, 1/4" and 1/8" line-level inputs, stereo RCA inputs, Bluetooth audio playback, and Samson Stage XPD wireless connectivity. The SM4 also features voiceover ducking, which lowers the level of the Music inputs when the Mic input is used.
Inputs: The SM4's rear panel inputs include a studio-grade, balanced, XLR/1/4" combo jack, for inputting a microphone, and a pair of stereo RCA inputs. The front panel includes a 1/4" mono and an 1/8" stereo jack as well as a USB port (Type-A, 3.0) for use with Samson's optional Stage XPD wireless microphone systems (sold separately). The USB can also be used for charging portable devices (5V / 200mA maximum).
Outputs: The rear panel output connections include a pair of balanced XLR jacks (configured as either a stereo or mono output) along with a pair of stereo RCAs.
Front Panel Controls:
Rear Panel Controls:
Mounting: The SM4 includes mounting hardware so the mixer can be rack-mounted in a standard 19" rack space, either as a single device with a "filler" plate, or using the adjoining bracket which allows two half-rack units to be mounted side by side.
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To have the convenience of bluetooth capability to run dj equipment. [ Jason May 16, 2018 ]