JBL CSMA 280 Mixer Amplifier with Crown DriveCore Technology - 8 Inputs/2 Outputs, 80W @ 4 Ohms

The JBL CSMA 280 Mixer Amplifier with Crown DriveCore Technology is a professional tool with a sleek industrial look that is designed and built for commercial sound applications. Utilizing Crown's DriveCore technology enables significantly reduced size and weight - all mixer/amps are highly efficient, fanless and just 1U rack space high. There are both single channel and two channel models with four or eight mixer channels, respectively.
The CSMA mixer/amps offer unmatched ease of use, with a clean, front panel featuring only volume controls for each channel, master volume adjustment, adjustable bass and treble controls and a power switch. All the volume controls are surrounded by an illuminated ring, making them easy to see and operate in darkened environments. The amplifier can drive 8 ohm and 4 ohm loads and can be used with 70V and 100V distributed audio systems without the need for a separate transformer. In addition to balanced mic/line inputs, unbalanced RCA inputs and speaker connections, all units include RJ45 connectors for use with JBL CSR-V in-wall volume controls. All models feature a universal power supply which enables the ability to accept AC voltages from 100 to 240 VAC, 50/60Hz.
JBL Commercial mixer/amps are manufactured under HARMAN's GreenEdge environmental initiative, conforming to lead-free RoHS standards and utilizing recycled copper, aluminum and steel, an energy-saving powder coat finishing process and other environmentally-conscious manufacturing processes. Their highly efficient DriveCore design reduces power consumption and yields much more efficient operation - up to 80 percent more efficient than previous designs. All models carry a 3-year no-fault transferable warranty.

JBL CSMA 280 Mixer Amplifier with Crown DriveCore Technology - 8 Inputs/2 Outputs Features

- 8 inputs with 2 outputs of 80-watts of power
- Ideal for commercial and industrial use
- Fanless, space-saving 1U design
- Sleek industrial look with illuminated rings, making them easy to see and operate
- Euro-block type mic/line input connectors and output connectors
- 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
- Priority muting
- Configurable output routing
- Utilizes Crown's DriveCoreTM technology providing excellent audio performance with high efficiency
- Manufactured to lead-free ROHS standards, utilizing recycled metals, and using an energy-saving powder coat process
- Includes rack mounting kit
- Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment
- Energy Star Certified

JBL CSMA 280 Mixer Amplifier with Crown DriveCore Technology - 8 Inputs/2 Outputs Specifications

- Max Output Power per Channel into 4 Ω or 8 Ω; 1kHz, ≤ 0.5% THD: 80W
- Insertion Loss (70V & 100V outputs): 1 dB maximum
- Continuous Power per Channel: 10W
- Number of Input Channels: 8
- Number of Output Channels: 2
- Line Output level: 5.0VRMS into 10kΩ
- Input Sensitivity to obtain full rated power at 8 Ω (or 5VRMS to line out)
  - Mic Input: 3mVRMS
  - Line Input: 775 mVRMS
  - RCA Input: 300mVRMS
- Frequency Response (measured at 2.83VRMS into rated load impedance at any output)
  - 4/8 Ohm Output: 20Hz - 20kHz, ±2dB
  - 70V/100V Outputs: 80Hz - 15kHz ±2dB
  - Line Out: 20Hz - 20kHz, ±1dB
- Total Harmonic Distortion (THD) (measured at 2.83VRMS into rated load impedance at any output)
  - Power Amp Output: <0.5%, 20Hz - 20kHz
  - Line Output: 0.05% typical
- Signal-to-Noise Ratio (Ref. Rated Power, mixer levels @ min., master volume @ max. A-weighted): >90dB
- Input Impedance (nominal)
  - Mic: 400 Ω
  - Line: 20 kΩ (balanced)
  - RCA: 50 kΩ
- Phantom Power: 27VDC
- Crosstalk (reference rated power, volume at mid position, 1kHz): -70 dB
- Nominal AC Line Voltages: 100-240V, 50/60 Hz
- Minimum Load Impedance:
  - Low Impedance Output: 4 Ω
  - 70V Output: 60 Ω
  - 100V Output: 120 Ω
- Operating Temperature/Humidity: 0°C to 35°C @ 95% R.H. (non-condensing)
- Storage Temperature: -20°C to 85°C

Physical & Dimensions:
- Dimensions:
  - Width: 218.5 mm
  - Depth: 303.4 mm
  - Height: 43.3 mm
- Net Weight: 5.4 kg
- Shipping Weight: 7 kg