JBL NCSMA180-U-US 4 Channel 80 Watts Powered Audio Mixer/Amplifier The JBL CSMA series of Mixer-Amplifiers are 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. Features: 4 inputs with 1 output 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 Specifications: Output: 120W @ 4/8 Ohms (1kHz Power, THD+N 0.5% Frequency Response: +/- 1dB (@1W into 4 or 8 Ohms) Load Impedance: Stable from 2 - 16 Ohms Sensitivity: 1.4Vrms Signal to Noise Ratio: Greater than 100 dB - 1kHz, A-weighted Input Impedance: Balanced 20K Ohms/Unbalanced 10K Ohms Max Input: +20dBu Typical Included Accessories: Rack mounting kit Dimensions: 1.7" x 8.6" x 11.9" (43.3 mm x 218.5 mm x 303.4 mm) Shipping Weight: 180: 9.9 lbs. (4.5 kg); 1120: 10.1 lbs. (4.6 kg) Echotone Music LLC is an experienced E-commerce Audio Visual Equipment dealer since 1998. We take pride in selling Pro Audio gear for musicians, sound engineers, production companies and broadcast applications. Shipping -Pro packed shipped USPS, UPS or Freight Service. Contact us pay for 2 day air upgrade on any unit. We are working hard to get your product ( built if needed), processed shipped. Processing times vary, 2-30 days Returns/Refunds- If there is truly a manufacturing defect a return tag will be provided. Otherwise customer pays for return shipping. Returned items must be sealed/unopened to qualify for a full refund. Refunds are for the Item cost only. Gear returned with out all its original packaging, accessories or shows signs of wear, is subject to an additional service fee. This item is now used and it would be unfair to resell to another customer as new. What products can not be returned? - Clearance items, Custom Builds, Road Cases, DT12 items, items identified as non-returnable, discontinued items, used or NOS items, electronic software downloads, demo gear, computers, vacuum tubes, earbuds, harmonicas raw-frame speakers, turntable cartridges, fog fluid