Bosch PLE-1P120-US Plena Amplifier (120W, Charcoal)

BH #BOPLE1P120US • MFR #F.01U.066.944
Bosch PLE-1P120-US Plena Amplifier (120W, Charcoal)
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Expected availability: 7-10 business days
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Bosch PLE-1P120 Overview

  • 1Description
  • 2Protection
  • 3Power Input and Output
  • 4Controls and Indicators
  • 5General

The charcoal finish PLE-1P120-US Plena Amplifier from Bosch is a high-power plug-and-play power amplifier that delivers 120W to constant voltage or 4 Ω loads. It is built with premium quality and protections and offers basic functionality. The amplifier offers straight 1 V and 70 V line inputs, and 25 and 70 V and 4 Ω outputs. It can extend the power of the PLE- series mixer-amplifier or be combined with the PLE-10M2-US mixer, or work anywhere where more power on an existing 70 V line is needed, or when a line level signal is provided.


The amplifier is protected against overload and short circuits. A limiter protects the amplifier and loudspeaker against accidental overdriving. A temperature-controlled fan ensures proper cooling without producing acoustic noise at lower output levels.

Power Input and Output

The unit operates both on mains power and on a 24 V battery power supply for emergency backup, with automatic switchover. The amplifier also has a built-in charger to charge the connected battery. The system has 2 balanced inputs that are summed together and a loop-through facility.

This makes it easy to connect multiple amplifiers. The secondary input is a 70 V line input to connect the amplifier to a 25 and 70 V loudspeaker line to provide more power in remote locations. Gain or level control is located on the rear of the unit to avoid accidental setting change. An LED VU meter shows the output level. The amplifier has 25 and 70 V outputs for constant voltage loudspeaker systems, and a low impedance output for 4 Ω loudspeaker loads.

Controls and Indicators


  • Power on LED
  • LED VU meter for master output (LEDs for -18, -12 -6, -3, 0 dB)
  • On/off button


  • Level control


120 power amplifier in a compact housing
1 V line level balanced input
70 V, 25 V, and 4 Ω outputs
70 V input for slave operation on 70 V speaker line
Temperature-controlled forced front to back ventilation (directly stackable)
24 VDC backup power with built-in charger
UPC: 800549150446

Bosch PLE-1P120 Specs

Power Supply
Voltage115 to 230 VAC ±10%, 50/60 Hz
Inrush Current4.5/9 A (230/115 VAC)
Power Consumption380 VA
Power SupplyVoltage: 24 VDC ±15%
Current5.5 A
Charge Current0.5 ADC
VoltageCharge Float: 27.3 VDC
Max Power Consumption227 W
-6dB (Mains): 130 W
IdleMains: 12 W
Maximum Power24 V: 7 A (150 W)
-6 dB (24 V): 4.4 A (194 W)
Idle24 V: 0.3 A (7 W)
Rated Power180 W / 120 W
PowerReduction on Backup Power: -1 dB
Frequency Response50 Hz to 20 kHz (+1/-3 dB @ -10 dB ref. rated output)
Distortion<1% @ rated output power, 1 kHz
Connector 13-pin Euro style, balanced
Sensitivity1 V
Impedance20 kΩ
Connector 23-pin Euro style, balanced
Sensitivity70 V
Impedance300 kΩ
Dynamic Range100 dB
CMRRMic: >40 dB (50 Hz to 20 kHz)
Loudspeaker PowerOutputs 25 V and 70 V:
Connector: Euro style pluggable screw terminals
Loudspeaker output 4 Ω
Connector: Euro style pluggable screw terminals, 31 V (120 W)
Operating Temperature 14 to 131°F (-10 to 55°C)
Storage Temperature-40 to 158°F (-40 to 70°C)
Relative Humidity<95%
Acoustic Noise LevelsFan: <40 dB SPL @ 1 m temperature controlled
Certifications and Approvals
EMC CertificationEmission: According to EN 55103-1
Immunity: According to EN 55103-2
MountingStand-alone, 19.0" (482.6 mm) rack
Dimensions (H x W x D)3.93 x 16.92 x 10.62" (100.00 x 430.00 x 270.00 mm)
Width: 19.0" (482.6 mm)
Height: 2U
WeightApproximately: 23.2 lb (10.5 kg)
Packaging Info
Package Weight21.15 lb
Box Dimensions (LxWxH)22.5 x 14.5 x 9"
See any errors on this page? Let us know



Do I need to connect this amplifier to my excitsting amplfier? and how do i do that?
Asked by: Anonymous
Please contact a Representative here at 800-606-6969 or email [email protected] for operation assistance with a product or purchase. We will be happy to help.
Answered by: Jeff P.
Date published: 2018-08-28
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