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The Bosch Plena PLE-1MA030 is a 30 watt public address amplifier suitable for 100 volt line commercial audio systems as well as low impedance sound systems using 8 ohm loudspeakers.

From the Plena range of mixer amplifiers, the Bosch PLE1MA030 is built to a high quality and features excellent sound and speech intelligibility thanks to a smart equalizing approach and built-in limiters.

Easy to use, with simple zone labels included in the box as well as setting indicators which enable the installer to place coloured markers on the volume and tone controls to indicate optimum and maximum recommended volume settings.

Despite its simplicity, the PLE 1MA030 still has flexible features such as ducking, priority paging and voice activated emergency override.

19" rack mounting brackets are included should you wish to build into a 19" equipment rack.

  • 30 watt, 100 volt line
  • Also compatible with 8 ohm speakers
  • 4 low noise balanced inputs for mic or line with phantom power
  • 3 separate line inputs
  • Further 100 volt input and Telephone input with priority
  • RJ45 connection for remote wall plate WP3S2Z (see ancillary section)
  • Contact closure and Vox priority
  • Built-in chime for announcements
  • Zone labelling and setting indicator pins
  • Smart equalizing
  • AC and 24VDC operation
  • LED VU Meter
  • 19" rack mount brackets included

Additional Information

Mains power supply



230 VAC ±10%, 50/60 Hz (reduced power at lower mains or battery voltage)

Inrush current


Power consumption

 100 VA



Frequency response

50 Hz to 20 kHz (+1/‑3 dB @ ‑10 dB ref. rated output)


<1% @ rated output power, 1 kHz

Bass Control

Treble Control

Max -12/+12 dB (frequency is setting dependent)

Max -12/+12 dB (frequency is setting dependent)

RJ-45 input

1 x

Wall panel input


Mic / Line Input

4 x

Music input

3 x

Emergency / telephone

1 x

Master/music output

1 x

Loudspeaker output 100 V

Euro style pluggable screw terminal, floating

Max / rated PLE-1MA030

45 W / 30 W

Loudspeaker output 4 ohm



Euro style pluggable screw terminal, floating


11 V (30 W)


Dimensions (H x W x D)

100 x 430 x 270 mm (19" wide, 2U high)


Stand-alone, 19" rack




Approx. 5 kg

View FileWhy An Impedance Meter is Essential for Audio Installers    Size: (72.64 KB)
View FileBosch PLE1MA030 / PLE1MA060 / PLE1MA120 Mixer Amplifier Datasheet    Size: (308.92 KB)
View FileBosch PLE-WP3S2Z    Size: (253.2 KB)
View FileEC Declaration of Conformity: PLE1MA030, 060, 120    Size: (705.76 KB)
Product video for Bosch Plena PLE-1MA030
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