JBL CSA 1120Z - 120W 1-Channel 70V/100V Power Amplifier with Master Volume Knob and RJ45 Connectors in Black Finish

The JBL Professional CSA 1120Z is a high-performance 120W 1-channel power amplifier designed to provide reliable and efficient sound amplification for various installed applications. With its compact and fanless 1U design, this amplifier is ideal for commercial settings such as retail spaces, restaurants, educational institutions, and more. Utilizing a universal switch-mode power supply and Crown's DriveCore technology, the CSA 1120Z delivers consistent, high-quality amplification while ensuring energy efficiency and minimal heat generation. Its ability to support both 70V and 100V installations out of the box makes it highly versatile for use in distributed audio systems, delivering power to long cable runs and multiple speakers.

Featuring a sleek, industrial look, the CSA 1120Z amplifier is designed to blend seamlessly into any professional setting. The front panel includes illuminated knobs for volume adjustment, which provide visual feedback and make it easy to operate, even in low-light conditions. The unit supports the JBL CSR-V wall controller, allowing for remote volume control via an RJ45 connector and standard Ethernet cable, offering flexibility for larger installations or multi-zone systems. Additionally, the CSA 1120Z features a sleep mode disable function, which can be turned off to keep the unit running continuously or activated to conserve energy when no signal is detected for an extended period.

For audio input, the CSA 1120Z includes mono sum RCA connectors and Euroblock connections, ensuring compatibility with various audio sources. The unit's output is provided by Euroblock connectors, which are designed for secure, professional-grade speaker connections. The amplifier also meets HARMAN's GreenEdge environmental initiative, ensuring that it is both energy-efficient and environmentally friendly. This amplifier is Energy Star certified, contributing to energy savings in long-term operations while maintaining high performance.

In terms of performance, the CSA 1120Z offers a frequency response of 20 Hz - 20 kHz (+/- 0.5 dB), ensuring clear and accurate sound reproduction across the full audio spectrum. The total harmonic distortion (THD) is kept below 0.5% at full rated power (20 Hz - 20 kHz), delivering clean, distortion-free audio even at high volumes. The unit also boasts an impressive signal-to-noise ratio of over 100 dB, ensuring quiet, noise-free operation. With a rated power of 120W and the ability to drive 4Ω, 70V, and 100V loads, this amplifier is versatile enough for a wide range of audio systems.

Features

• 120W of output power with 1 channel for reliable amplification in commercial installations
• Supports 70V and 100V distributed audio systems without the need for a separate transformer
• Fanless, space-saving 1U design with a sleek industrial look
• Illuminated volume knobs for easy operation in darkened environments
• Supports remote volume control using JBL CSR-V module and standard Ethernet cable (sold separately)
• Energy-efficient design with Crown's DriveCore technology
• Energy Star certified for energy savings and eco-friendly performance
• Sleep mode disable function for continuous or energy-saving operation
• Inputs provided by mono sum RCA connectors and Euroblock connectors
• Output provided via Euroblock connectors for secure speaker connections
• Frequency response: 20 Hz - 20 kHz (+/- 0.5 dB)
• Total harmonic distortion (THD) < 0.5% at full rated power
• Signal-to-noise ratio: >100 dB for quiet, noise-free operation
• Bass and treble tone controls with +/-10 dB adjustment at 100 Hz and 10 kHz
• Rated power: 120W, with continuous power of 10W per channel
• Nominal AC line voltages: 100-240V, 50/60 Hz
• Minimum load impedance: 4Ω (low-Z), 40Ω (70V), 80Ω (100V)
• Operating temperature: 0°C to 35°C, 95% humidity (non-condensing)
• Dimensions: 8.6 x 11.9 x 1.7 inches
• Net weight: 6.9 lbs, Shipping weight: 9.9 lbs

Specifications

Performance

• Rated Power: 120W
• Number of Output Channels: 1
• Insertion Loss: 1 dB maximum (70V & 100V outputs)
• Input Sensitivity: 1.4 Vrms (8 Ω Load)
• Frequency Response: 20 Hz - 20 kHz, ±0.5 dB
• Total Harmonic Distortion (THD): <0.5% @ full rated power, 20 Hz - 20 kHz
• Signal-to-Noise Ratio: >100 dB
• Input Impedance:
  • Euro Block: 20 kΩ (balanced)
  • RCA: 50 kΩ
• Maximum Input Level: +22 dBu (nominal)
• Crosstalk: >70 dB (A-weighted, 1 kHz)
• Tone Controls: Bass: +/-10 dB @ 100 Hz; Treble: +/-10 dB @ 10 kHz
• Nominal AC Line Voltages: 100-240V, 50/60 Hz
• Minimum Load Impedance:
  • Low-Z Output: 4 Ω
  • 70V Output: 40 Ω
  • 100V Output: 80 Ω
• Operating Temperature/Humidity: 0°C to 35°C @ 95% R.H. (non-condensing)
• Storage Temperature: -20°C to 85°C

Physical

• Net Weight: 6.9 lbs
• Dimensions: 8.6 x 11.9 x 1.7 inches
• Shipping Weight: 9.9 lbs