An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. Full manufacturer’s warranty and free one year extended warranty from Gigasonic.
JBL CSMA 280 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 CSMA 280 mixer/amp offers 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, the unit includes RJ45 connectors for use with JBL CSR-V in-wall volume controls. This Commercial Series mixer/amplifier features a universal power supply which enables the ability to accept AC voltages from 100 to 240 VAC, 50/60Hz.
8 inputs with 2 outputs of 80W 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
Maximum Output Power: 80 W per channel into 4 Ohms or 8 Ohms, 1 kHz, ≤ 0.5% THD
Insertion Loss: 1 dB maximum for 70 and 100 V outputs
Continuous Power: 10 W per channel
Line Output Level: 5.0 V RMS into 10 kOhms
Input Sensitivity
To obtain full rated power at 8 Ohms (or 5 VRMS to line output)
Mic Input: 3 mV RMS
Line Input: 775 mV RMS
RCA Input: 300 mV RMS
Number of Channels
Input: 8
Output: 2
Frequency Response
Measured at 2.83 V RMS into rated load impedance at any output
4/8 Ohms Output: 20 Hz – 20 kHz, ±2 dB
70 V/100 V Outputs: 80 Hz – 15 kHz ±2 dB
Line Out: 20 Hz – 20 kHz, ±1 dB
Total Harmonic Distortion (THD)
Measured at 2.83 V RMS into rated load impedance at any output
Power Amplifier Output: <0.5%, 20 Hz to 20 kHz
Line Output: 0.05% typical
Signal to Noise Ratio: > 90 dB
Nominal Input Impedance
Mic: 400 Ohms
Line: 20 kOhms (balanced)
RCA: 50 kOhms
Minimum Load Impedance
Low Impedance Output: 4 Ohms
70 V Output: 60 Ohms
100 V Output: 120 Ohms
Crosstalk: -70 dB @ 1 kHz
Controls
Front Panel:
8 x Input level rotary knobs
2 x Output volume-attenuating knobs
1 x Power switch
2 x Bass potentiometers
2 x Treble potentiometers
Rear Panel:
2 x Input-routing dip switches (including phantom and Hi-Z switches)
8 x Mic/Line selector switch
2 x Vox adjustment switches
Indicators
Front Panel:
8 x Input signal presence ring, green
2 x Output volume ring, green
1 x Power switch ring, green/blue
Connectors
Rear Panel:
1 x IEC power input
2 x Aux out connection points
6 x 3-pin euroblock connectors
2 x 5-pin euroblock connectors
6 x Dual RCA input connectors
2 x RJ45, remote volume
Operating Temperature / Humidity: 32 to 95°F / 0 to 35°C, 95% RH (non-condensing)
Storage Temperature: -4 to 185°F / -20 to 85°C
Phantom Power: 27 VDC
AC Input: 100-240 VAC, 50/60 Hz
Dimensions (WxDxH): 17.2 x 11.9 x 1.7″ / 436.9 x 302.3 x 43.2 mm
Weight: Approximately 11.9 lb / 5.4 kg
