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Designed for commercial and industrial use, the CSMA 180 Commercial Series Mixer/Amplifier from JBL is a mixer/amplifier with four mixer-channel inputs and one output channel. 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 a master volume adjustment knob, 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 the mic/line inputs, unbalanced RCA inputs, speaker connections, Hi-Z and phantom power switches, and more. The unit is also equipped with a RJ45 connector 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 channel one's input, and a sleep mode which automatically powers down the unit when no audible signal has been received for longer than 30 minutes. Also, with an auxiliary output, you may connect to an additional amplifier, though the master volume and tone controls will have no bearing on the resulting signal. Feature4 inputs with 1 output of 80 or 120-watts of powerIdeal for commercial and industrial useFanless, space-saving 1U designSleek industrial look with illuminated rings, making them easy to see and operateEuro-block type mic/line input connectors and output connectorsIndependent Bass and Treble controls for each output channelSupports 70V and 100V distributed audio systems without the need for a separate transformerRemote volume control capability using JBL CSR-V module and standard Ethernet cablePriority mutingConfigurable output routingUtilizes Crown’s DriveCoreTM technology providing excellent audio performance with high efficiencyManufactured to lead-free ROHS standards, utilizing recycled metals, and using an energy-saving powder coat processIncludes rack mounting kitThree-Year, No-Fault, Fully Transferable Warranty completely protects your investmentEnergy Star CertifiedSpecificationMaximum Output Power : 80 W per channel into 4 Ohms or 8 Ohms, 1 kHz, ≤ 0.5% THDInsertion Loss : 1 dB maximum for 70 and 100 V outputsContinuous Power : 10 W per channelLine Output Level : 5.0 V RMS into 10 kOhmsInput 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 RMSNumber of Channels : - Input: 4 - Output: 1Frequency 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 dBTotal Harmonic Distortion THD : Power Amplifier Output: Line Output: 0.05% typicalSignal to Noise Ratio : > 90 dBNominal Input Impedance : - Mic: 400 Ohms - Line: 20 kOhms (balanced) - RCA: 50 kOhmsMinimum Load Impedance : - Low Impedance Output: 4 Ohms - 70 V Output: 60 Ohms - 100 V Output: 120 OhmsCrosstalk : -70 dB @ 1 kHzControlsFront Panel : 4 x Input level rotary knob1 x Output volume attenuator, rotary knob1 x Power switch1 x Bass potentiometer1 x Treble potentiometerRear Panel : 1 x Hi-Z switch1 x Phantom power switch4 x Mic/Line selector switches1 x VOX adjustmentIndicators / Front Panel : 4 x Input signal presence ring, green1 x Output volume ring, green1 x Power switch ring, green/blueConnectors Rear Panel : 1 x IEC power input1 x 5-pin amplifier output1 x 3-pin auxiliary line level output1 x RJ45, remote volume3 x 3-pin Euroblock Mic/Line input3 x Dual RCA stereo input1 x 5-pin Euroblock Priority inputOperating Temperature / Humidity : 32 to 95°F / 0 to 35°C, 95% RH (non-condensing)Storage Temperature : -4 to 185°F / -20 to 85°CPhantom Power : 27 VDCAC Input : 100 to 240 VAC, 50/60 HzDimensions (W x D x H) : 8.6 x 11.9 x 1.7" / 21.9 x 30.3 x 4.3 cmWeight : Approximately 6.8 lb / 3.1 kg
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