Professional Audio

MA 500 USB


Amplifier/player 2 x 150 W @ 4 Ohm.

MA 500 USB is a 150W per channel stereo amplifier, with two RCA line inputs on the rear, a recording output and a USB, SD and Bluetooth reader module on the front. The device also incorporates 5 microphone inputs, 3 of them 6.3 mm Jack on the front panel and two of them on the rear XLR3. The professional can modify the gain control of each of the microphone signals, as well as the possibility of adding effects such as eco, delay and tone (bass and treble). In its front part there are different controls, such as the master volume, the general volume of the input signals and the management controls of the USB interface such as the mode and control of the audio tracks.


  • Mp3 player. USB/SD reader.
  • 5 microphone inputs.
  • Eco effect.
  • Remote control.
No. Amp Ch2
W/Ch @ 4 Ohm150 W
No. Mic Ch3 x 1/4" Jack (front), 2 x XLR3 (rear)
No. Line Ch1
Frequency Range20 Hz - 20 KHz
S/N Rate>92 dB
Damping Factor>100:1
ControlsPush button lit, Microphone volume, player volume, effect parameters, balance, tone control (treble, bass)
ConnectionsAux / BGM: RCA, Mic: 2 x XLR3, 3 x 1/4 "Jack, Rec Out: RCA, Pre In: RCA, Speaker Output: Binding Post
ProtectionsT5A fuse
Player ControlRemote control
Audio FormatsMP3

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