JBL CSMA 1120 - 120W Commercial Mixer/Amplifier with 4 Inputs and 1 Output in Black Finish

The JBL Professional CSMA 1120 is a 120W commercial mixer/amplifier designed to deliver reliable and efficient audio amplification for a wide range of commercial and industrial applications. With four mixer-channel inputs and one output channel, this versatile unit provides the power and flexibility needed for environments such as retail stores, schools, fitness centers, and other commercial spaces. It offers a peak power output of 120W, with 15W per channel of continuous power, making it an ideal solution for background music and paging systems.

The CSMA 1120 features a sleek, space-saving 1U design with a fanless operation, making it perfect for installations where quiet performance and compactness are essential. Its front panel includes illuminated volume controls for each input channel, as well as a master volume knob, bass and treble controls, and a power switch, all designed to ensure ease of use, even in darkened environments. The unit is capable of driving both 8-ohm and 4-ohm loads, and supports 70V and 100V distributed audio systems without requiring a separate transformer, providing excellent compatibility with various audio systems.

Connectivity options on the CSMA 1120 are comprehensive, with Euro-block type mic/line input connectors and output connectors, ensuring secure and reliable connections for all types of audio sources. The unit also features an auxiliary output, allowing you to connect an additional amplifier. Although the master volume and tone controls do not affect the auxiliary output, this feature enhances the system's flexibility for larger setups. The CSMA 1120 also includes an RJ45 connector for remote volume control using the JBL CSR-V in-wall volume control module (sold separately), providing convenient control over audio levels in different locations.

Additional features of the CSMA 1120 include voice-activated ducking, which automatically reduces background music volume during paging, and priority muting, which ensures that channel one's input takes precedence. The unit also has a sleep mode that powers down the amplifier automatically after 30 minutes of inactivity, helping save energy when not in use. It utilizes Crown's DriveCore technology, ensuring high-efficiency performance with excellent audio quality. Moreover, it is Energy Star certified, manufactured to lead-free ROHS standards, and uses recycled metals, making it an environmentally friendly choice for your audio needs.

Features

• 120W peak output power with 4 input channels and 1 output channel
• Ideal for commercial and industrial use in restaurants, schools, fitness centers, and retail stores
• Fanless, space-saving 1U design with a sleek industrial look
• Illuminated volume controls for easy operation in low-light environments
• Euro-block type mic/line input connectors and output connectors for secure connections
• Independent bass and treble controls for each output channel
• Supports 70V and 100V distributed audio systems without the need for a separate transformer
• Remote volume control capability using JBL CSR-V module and standard Ethernet cable (sold separately)
• Priority muting and voice-activated ducking for seamless paging and background music control
• Auxiliary output for connecting an additional amplifier with separate volume and tone controls
• Uses Crown's DriveCore technology for excellent audio performance and high efficiency
• Energy Star certified, lead-free ROHS standards, and environmentally friendly design
• Three-year, no-fault, fully transferable warranty for complete protection
• Frequency response: 20 Hz - 20 kHz (+/-2 dB) for 4/8Ω output, 80 Hz - 15 kHz (+/-2 dB) for 70V/100V outputs
• Total harmonic distortion (THD) < 0.5%, 20 Hz - 20 kHz for power amp output
• Signal-to-noise ratio: >90 dB (A-weighted)
• Phantom power: +27 VDC
• Nominal AC line voltages: 100-240V, 50/60 Hz
• Dimensions: 8.6 x 11.9 x 1.7 inches
• Net weight: 7.1 lbs, Shipping weight: 10.1 lbs

Specifications

Performance

• Max Output Power per Channel: 120W
• Continuous Power per Channel: 15W
• Insertion Loss (70V & 100V outputs): 1 dB maximum
• Number of Input Channels: 4
• Number of Output Channels: 1
• Line Output Level: 5.0 Vrms into 10 kΩ
• Input Sensitivity:
  • Mic Input: 3 mVrms
  • Line Input: 775 mVrms
  • RCA Input: 300 mVrms
• Frequency Response:
  • 4/8 Ohm Output: 20 Hz - 20 kHz, +/-2 dB
  • 70V/100V Outputs: 80 Hz - 15 kHz, +/-2 dB
  • Line Out: 20 Hz - 20 kHz, +/-1 dB
• Total Harmonic Distortion (THD):
  • Power Amp Output: <0.5%, 20 Hz - 20 kHz
  • Line Output: 0.05% typical
• Signal-to-Noise Ratio: >90 dB (A-weighted)
• Input Impedance (Nominal):
  • Mic: 400 Ω
  • Line: 20 kΩ (balanced)
  • RCA: 50 kΩ
• Phantom Power: +27 VDC
• Crosstalk: <-70 dB
• Nominal AC Line Voltages: 100-240V, 50/60 Hz
• Minimum Load Impedance:
  • Low Impedance 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

Dimensions and Weight

• Net Weight: 7.1 lbs
• Dimensions: Width: 8.6 x 11.9 x 1.7 inches
• Shipping Weight: 10.1 lbs