JBL CSA 2120 - 120W 2-Channel Power Amplifier with Auto-Standby and Plenum Rated in Black Finish

The JBL Professional CSA 2120 is a powerful and compact 2-channel power amplifier designed for installed sound applications, offering 120W of output per channel at 4Ω or 8Ω. This amplifier is ideal for a variety of commercial and industrial environments, including retail spaces, educational institutions, and public venues, where high-quality sound amplification is essential. The CSA 2120 delivers clear, accurate sound with very low distortion, ensuring the best performance for both music and voice applications.

Featuring dual summing RCA inputs and 3-pin detachable Euroblock inputs for both channels, the CSA 2120 offers flexible connectivity, ensuring compatibility with a variety of audio sources. Each channel is equipped with a selectable limiter and a high-pass filter at 70Hz, providing enhanced control over audio performance and preventing low-frequency distortion. For speaker connection, the CSA 2120 includes a 4-pin Euroblock output connector, which allows the amplifier to power dual loudspeakers with ease. This amplifier is also designed to deliver high power output in a compact and lightweight form, making it suitable for installations where space is at a premium.

The CSA 2120 features an auto-standby mode that helps save energy by disabling the amplifier's pulse width modulation (PWM) generator when no signal is detected, further enhancing its energy efficiency. In addition to the auto-standby function, the CSA 2120 is equipped with over-heat and low-voltage protection, ensuring reliable operation even under demanding conditions. The unit is rackmountable, and it includes a rackmount kit for easy installation in standard 19" equipment racks, offering flexibility for various setup configurations.

On the front panel, the CSA 2120 includes channel volume controls along with clip, signal, and power LED indicators, providing users with clear, at-a-glance feedback on the amplifier's status. The unit is powered by a switch-mode universal power supply, which accepts AC voltages from 100 to 240V at 50/60 Hz, making it suitable for use in various global locations. This amplifier also adheres to HARMAN's GreenEdge environmental standards, ensuring that it is energy-efficient and environmentally friendly.

With its exceptional sound quality, compact design, and reliable performance features, the JBL CSA 2120 is the perfect choice for installations where high power output, energy efficiency, and ease of use are essential. Whether used in a single-zone setup or as part of a larger audio system, the CSA 2120 delivers the performance and flexibility needed for professional sound installations.

Features

• 120W of output power per channel at 4Ω or 8Ω for reliable amplification in commercial audio systems
• Two input channels and two output channels for flexible sound amplification and speaker connectivity
• Dual summing RCA inputs and 3-pin detachable Euroblock inputs for easy integration with various audio sources
• Selectable limiter and high-pass filter (70Hz) for enhanced audio control and protection against low-frequency distortion
• 4-pin Euroblock output connector for powering dual loudspeakers
• Auto-standby mode helps save energy by disabling the amplifier's PWM generator when no signal is detected
• Over-heat and low-voltage protection for reliable operation
• Fanless, space-saving 1U design, ideal for installations with limited space
• Rackmountable with the included rackmount kit for easy installation in standard 19" equipment racks
• Front-panel channel volume controls with clip, signal, and power LED indicators for easy monitoring
• Energy-efficient design powered by a switch-mode universal power supply (100-240V, 50/60 Hz)
• Energy Star certified for eco-friendly operation
• Frequency response: ±1 dB (1 watt into 4 or 8 Ohms)
• Total harmonic distortion (THD) < 0.5% at full rated power (20 Hz - 20 kHz)
• Signal-to-noise ratio: >100 dB for clear, noise-free audio
• Input impedance: Euroblock (20 kΩ balanced), RCA (50 kΩ)
• Operating temperature: 0°C to 40°C with 95% relative humidity (non-condensing)
• Dimensions: 8.2 x 1.7 x 7 inches, Net weight: 2.1 lbs, Shipping weight: 3.8 lbs

Specifications

Performance

• Output Power: 4 Ohms 120 W, 8 Ohms 120 W
• Frequency Response: ±1 dB (1 watt into 4 or 8 Ohms)
• Load Impedance: Rated for 4 or 8 Ohms
• Sensitivity: 1.4 Vrms (8 Ohms load)
• Signal-to-Noise Ratio: >100 dB (below rated 8-Ohm power at 1 kHz, A-weighted)
• Crosstalk: >70 dB from 20 Hz to 1 kHz, >50 dB at 20 kHz
• Input Impedance: Balanced: 20 kOhms, Unbalanced: 10 kOhms
• AC Line Voltage and Frequency: 100-240 V, 50/60 Hz
• Maximum Input Signal: +20 dBu typical
• Operating Temperature: 0°C to 40°C @ 95% relative humidity (non-condensing)
• Auto-Standby: Auto-Standby recovery time: <1ms, Auto-Standby recovery threshold: -60 dBu

Physical

• Dimensions: 8.2 x 1.7 x 7 inches
• Net Weight: 2.1 lbs
• Shipping Weight: 3.8 lbs