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JBL LIBRA 300 Mixer Amplifier – 1 Channel, 300W

•300 Watt Amplifier Mixer Amplifier
•6 Multiple inputs for speeches, music, paging, etc
•4Ω/8Ω & 70/100V,Barrier Strip (with touch proof cover)
•Rated Power (at THD 10% 240 VAC,1kHz,4Ω) : 250 W

JBL LIBRA 300 Overview :

The JBL LIBRA 300 is a powerful and compact single-channel mixer/amplifier designed for commercial and industrial audio applications. With a 300W RMS output, it is ideal for use in retail stores, restaurants, educational institutions, houses of worship, and outdoor public address systems.

This mixer/amplifier features Crown DriveCore technology, ensuring high-efficiency performance in a lightweight and fanless design. The front panel offers volume, bass, and treble controls, along with support for USB and Bluetooth audio playback, enabling direct connection of digital audio sources.

The amplifier supports both low-impedance (4Ω/8Ω) and high-impedance (70V/100V) speaker systems, making it highly versatile. It includes mic and line inputs, along with preamp outputs to expand or cascade additional amplifiers. Safety features such as overload protection, short-circuit protection, and low-voltage shutdown ensure reliable operation in demanding environments.

The JBL LIBRA 300 also supports dual power input—AC (220–240V) and DC (24V)—allowing it to be used in mobile or backup power applications.

Specifications

Design & Build :

Feature Details
Form Factor Rackmount / Tabletop
Size (W × H × D) Approx. 430 × 88 × 300 mm
Weight Approx. 6.5 kg
Cooling Passive (Fanless – Crown DriveCore Tech)
Mounting Rack-mountable (Approx. 2U Height)

Power & Amplification :

Feature Details
Channels 1 Output Channel
Output Power 300W RMS @ 4Ω (THD ≤ 10%, 1 kHz)
Load Compatibility 4Ω / 8Ω / 70V / 100V
Output Regulation ≤ 3 dB (No-load to full-load @ 1 kHz)
THD ≤ 10%
Signal to Noise Ratio ≥ 70 dB

Audio Performance :

Feature Details
Frequency Response 50 Hz to 15 kHz ±3 dB
Tone Controls Bass ±10 dB @ 100 Hz, Treble Adjustment
Audio Playback USB + Bluetooth Streaming Support

 Control & Features :

Feature Details
Volume Control Master Volume Knob
EQ Control Bass & Treble Knobs on Front Panel
Wireless Audio USB Audio & Bluetooth Built-in
Front Panel Metal with Control Knobs

Protection & Safety :

Feature Details
Overload Protection Yes
Short Circuit Protection Yes
Low Voltage Shutdown Yes
Cooling Type Fanless (Efficient Passive Cooling)

 

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