SKU: 54320915840

JBL CSMA280 Commercial Series Mixer Amplifier - 2x80W

Sale price$553.50 Regular price$615.00
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Description

JBL CSMA280 Commercial Series Mixer Amplifier - 2x80WDesigned for commercial and industrial use, the CSMA 280 Commercial Series Mixer Amplifier from JBL is a mixer amplifier with eight mixer channel inputs and two output channels. It's capable of reaching 80W of peak power with 10W per channel. The unit's front panel sports volume controls for each channel, as well as two master volume adjustment knobs, two sets of bass and treble controls, and a power switch. The volume controls are illuminated so they

Designed for commercial and industrial use, the CSMA 280 Commercial Series Mixer/Amplifier from JBL is a mixer/amplifier with eight mixer-channel inputs and two output channels. It's capable of reaching 80W of peak power with 10W per channel. The unit's front panel sports volume controls for each channel, as well as two master volume adjustment knobs, two sets of bass and treble controls, and a power switch. The volume controls are illuminated so they can be seen and operated in darkened environments.

The amplifier, capable of driving both eight and four Ohm loads, can be used with 70V and 100V distributed audio systems without the need for a separate transformer. On its back panel you'll find euroblock connections for mic/line inputs, as well as unbalanced RCA inputs, speaker connections, dip switches for input routing, and more. The unit is also equipped with two RJ45 connectors for use with JBL CSR-V in-wall volume controls (available separately).

This Commercial Series mixer/amplifier boasts such features as voice activating ducking (useful for paging over background music), priority muting for channels one and five, and a sleep mode which automatically powers down the unit when no audible signal has been received for longer than 30 minutes. Also, with two auxiliary outputs, you may connect to an additional amplifier, though the master volume and tone controls will have no bearing on the resulting signal.

Features

  • For Commercial and Industrial Use
  • 80W into 8 or 4 Ohm Loads
  • 10W Per Channel
  • 8 Input Channels, 2 Output Channel
  • Usable with 70 & 100V Systems
  • Euroblock Mic/Line & RCA Inputs
  • Hi-Z & 27V Phantom Power Switches
  • Sleep Mode & 2 Auxiliary Outputs
  • Voice Activated Ducking & Priority Mute

Specifications

Form Factor/Type
Rackmount
Number of Channels
8 Input / 2 Output
Amplifier Power Rating
4 Ohms / 8 Ohms:
80 W Peak per Channel (1 kHz, 0.5% THD)
10 W RMS per Channel
Load Impedance / Voltage
4 Ohms (Minimum)
70 V (60 Ohms Minimum)
100 V (120 Ohms Minimum)
Performance
Frequency Response
Amplifier:
20 Hz to 20 kHz ±2 dB (Low-Z)
80 Hz to 15 kHz ±2 dB (70/100 V)
Line Output:
20 Hz to 20 kHz ±1 dB
Input Sensitivity
Mic:
3 mVrms
Line:
775 mVrms
RCA:
300 mVrms
I/O Impedance
Mic Input:
400 Ohms
Line Input:
20 Kilohms (Balanced)
RCA Input:
50 Kilohms
Output Level
Line Output:
5 Vrms (10-Kilohm Load)
Insertion Loss
1 dB Maximum
SNR
> 90 dB
THD
< 0.5% (20 Hz to 20 kHz, Main Output)
0.05% (Line Output)
Crosstalk
-70 dB (1 kHz)
Signal Processing
EQ
2-Band
Connectivity
Audio I/O
2x Block 5-Pin Balanced Line/Mic Input
6x Block 3-Pin Balanced Line/Mic Input
6x Stereo RCA 5-Pin Unbalanced Summed-Mono Input
2x Block 3-Pin Balanced Aux Output
Other I/O
2x RJ45 Remote/Volume
Phantom Power
27 VDC
Power
AC Input Power
100 to 240 VAC, 50 / 60 Hz
AC Power Connector
1x IEC
Physical
Rackmount Size
1 RU
Operating Temperature
32 to 95°F / 0 to 35°C
Storage Temperature
-4 to 185°F / -20 to 85°C
Operating Humidity
0 to 95% ()
Dimensions
17.2 x 1.7 x 11.9" / 436.9 x 43.2 x 302.3 mm
Weight
11.9 lb / 5.4 kg
Packaging Info
Package Weight
16 lb
Box Dimensions (LxWxH)
20.5 x 16.3 x 5.2"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54320915840

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MrsRum
Waukegan, US
★★★★★ 4
Nice shelves
Color: Black, Size: 15.7 inch, Color: Black, Size: 15.7 inch
My son has a small bedroom & not a lot of storage, so I was looking for something to hold his cologne & hair products, etc. I know these are ‘bathroom shelves’, but the black went well with his room decor. They look great & are exactly what he needed. They were easy to install & seem stable. The only slightly negative thing is the quality of the shelf part. It’s a cheap mdf-type material & had a couple areas that had the black paint scratched off, but it was so minor I’m fine with it. They look nice & have an industrial look, which is great for a boys room.
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Reviewed in the United States on January 14, 2025
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Amazon Customer
Battle Creek, US
★★★★★ 5
Cute wall storage option
Color: Dark Brown, Size: 15.7 inch
Perfect addition to the bathroom and adds a little storage space for the extra rolls of toilet paper. Assembles in no time and install was easy.
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Reviewed in the United States on May 20, 2026
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Claudette J Dwyer
Pawtucket, US
★★★★★ 5
Well made shelves
Color: Dark Brown, Size: 15.7 inch
Cute and easy to attach to the wall.
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Reviewed in the United States on March 31, 2026
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Neal
Phoenix, US
★★★★★ 5
Must buy!
Color: Dark Brown, Size: 15.7 inch
Very nice and sturdy!
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Reviewed in the United States on May 7, 2026
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Troy Nielsen
Natrona Heights, US
★★★★★ 5
Great shelves that are easy to hang
Color: Black, Size: 4 inch, Color: Black, Size: 4 inch
These worked perfectly in my bathroom! Love them. They were easy to hang and look great!
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Reviewed in the United States on May 25, 2026

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