JBL CSMA240 8 Channels 40W Commercial Mixer Amplifier


The CSMA 240 Commercial Series Mixer/Amplifier from JBL is a two channel mixer/amplifier with 8 mixer channels. The CSMA 240's front panel features volume controls for each channel, master volume adjustment, adjustable bass and treble rotary controls, and a power switch.


The JBL CSMA 240 can be your best friend if you're setting up a sound system for your restaurant, retail store or other business. Eight input channels give you plenty of options for background music, with two priority channels for microphone connections so paging and announcements can be heard loud and clear. The CSMA 240 is even easy to operate when hidden away in a darkened cabinet, thanks to the illuminated rings around each dial on the front of the unit. The lights are signal-sensing, so each will glow green as soon as an input signal is detected. The mixer/amplifier is compatible with remote volume control (not included) via twin RJ-45 ports on the back panel. With two channels of 40-watts each, stable from 2 to 16 ohms, you'll have all the flexibility you need to build a dream system for your place of business.

Product Highlights:

  • amplified mixer for commercial audio distribution features 8 input channels and 2 output channels of 40 watts each
  • supports 70-volt and 100-volt distributed audio systems without the need for a separate transformer
  • stable from 2-16 ohms
  • uses Crown's high-efficiency DriveCoreā„¢ technology to provide excellent audio performance
  • independent bass and treble controls for each output channel
  • dip switches for input routing, phantom power, and 70/100V operation
  • illuminated rings around buttons and dials for easy operation in darkened environments
  • fanless, space-saving single rack space (1U) design
  • rack mounting kit included
  • Energy StarĀ® certified
Inputs and Outputs:
  • dual RJ-45 connectors for use with in-wall volume controls (not included)
  • dual 5-pin Euro-block Priority input connectors (channels 1 and 5) with vocal override for announcements
  • six 3-pin Euro-block connectors with line/mic input switch for balanced input sources
  • six RCA input connectors sum unbalanced stereo inputs to mono
  • 3-pin auxiliary line level output connector for each output channel
  • dual 5-pin Euro-block main outputs compatible with low impedance or constant voltage systems
  • unwired Euro-block connectors are included

Output120W @ 4/8 Ohms (1kHz Power, THD+N<0.5%)
Frequency Response+/- 1dB (@1W into 4 or 8 Ohms)
Load ImpedanceStable from 2 - 16 Ohms
Signal to Noise Ratio-weighted
Input ImpedanceBalanced 20K Ohms/Unbalanced 10K Ohms
Max Input+20dBu Typical
Dimensions1.7" x 17.2" x 11.9" (43.3 mm x 436.9 mm x 303.4 mm)
Shipping Weight240: 13.9 lbs (6.3 kg); 280: 15.2 lbs (6.9 kg); 2120: 15.5 lbs (7.0 kg)

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See Also : PA Mixing Amplifier, JBL