Features

• High power eight-zone/16-channel amplifier that supplies audiophile-level sound to distributed audio systems
• Provides 80 Watts per channel (1KHz into 4 Ohms), 50W Watts per channel (1KHz into 8 Ohms)
• Uses highly efficient Class D technology that runs cooler and keeps distortion low
• Independent 8-zone control with global and independent zone triggering
• Front panel on/off buttons: Allows each stereo Zone to be turned on or off, maximizing energy efficiency
• Includes a bridged switch per each zone; both channels can be bridged internally with a single connection (left input) output (160 watts at 8 ohms)
• Special protection circuitry safeguards the amplifier from thermal overload and short circuits
• Includes Bus Global 12V Trigger and Dual Bus Inputs/Outputs
• Signal autosensing detects a signal to power up and powers down when a signal is not detected
• Pair with the ALL NEW SRT4 GEN2 for the ultimate distributed audio setup
• Front-panel status indicators
• Rack-mountable with hardware included

Our MX1680 GEN2 is a powerful 8-zone 16-channel digital amplifier for commercial and residential audio systems that require reliable power in multiple zones. A slim 2U, rack-mountable and cool-running multi-room amplifier, the MX1680 GEN2 includes 16 channels rated at 80 watts each at 4 ohms/50 watts at 8-ohms and can be configured as the main amplifier for an audio distribution system such as for background music, paging, and multi-zone audio or as an amplifier for 5.1 or 7.2 home theater surround sound systems. Each Zone can be turned on or off from front panel located buttons.

Bridgeable with Independent Zone Control

When used with an audio distribution preamp or matrix processor, each zone can independently drive one of several different sources by using each zone’s line audio inputs, and if a particular area needs higher power, then two zones can be bridged for 160 watts per channel x 2 at 8 ohms.

Designed for Installation Flexibility

The MX1680 GEN2 accommodates a wide range of audio applications with global and independent zone triggering, audio sense circuitry with adjustable gain/vol per channel, two Bus Inputs/Outputs and independent left and right line inputs per zone. With high performance and ultra-low distortion output, the MX1680 GEN2 Multi-Zone Amplifier provides unmatched sound quality for any audio system.

Pair with the NERO SRT Streaming pre-amps and Player App

The NERO SRT4 GEN2 and SRT1 GEN2 streaming products are an ideal match for our MX series Multi-Channel Amplifiers. The streaming module controlled by the OSD Audio Streaming Player App is available for either your Android or Apple smartphone or tablet for access to Spotify, Tidal, Napster, Intune, iHeart Radio, and other options. You can start with a single NERO SRT1 GEN2 connected to the Bus 1 input, or two modules connected to the Bus2 and configured between the available zones. You can even add a NERO SRT for each available zone, from one to four for the MX880 GEN2, one to six for the MX1280 GEN2 or one to eight for the MX1680 GEN2. All or any combination can be grouped through the App for maximum flexibility.

Class D Efficiency

Our MX1680 uses highly efficient Class D digital circuitry.  Class D amplifiers use output transistors that are fully turned on or off during operation, which keeps distortion low, and efficiency is high (93%). Class D amps combine the best qualities of both class A and B technologies and are ideal for distributed audio and home theater setups because these amps run cooler than traditional amps and can easily run multiple pairs of speakers at a 4-ohm or 8-ohm load.

Warning: California's Proposition 65

---

Warning: This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

• Amplifier Type: Multi Channel
• Amplifier Class: Class D
• Channels: 16 Each; 8 Stereo Zones
• Power Handling: 50W(RMS)/ 100W(MAX) Per Channel @ 8 Ohm
• Power Handling: 80W(RMS)/ 160W(MAX) Per Channel @ 4 Ohm
• Bridged Rating (Watts): 160W(MAX) @ 8 Ohm
• Impedance: 8 Ohm and 4 Ohm Stable
• Frequency Response: 20Hz to 20KHz + 1.7/-1dB at 1W output into 8 Ohms
• Signal to Noise Ratio: 90 dB A-weighted
• 12V Trigger Mode, Bus 
• Zone Line Input: Line In, Bus In 1, Bus In 2 Per Zone
• Individual Output Level Controls for Each Channel
• Speaker Connectors: Detachable Speaker Terminals, up to 14AWG
• Rack Mountable: Yes, Mounts Included
• Dimensions (L x H x D): 16.81" x 3.46" x 16.14"
• Weight: 22.8 lbs
• Warranty: 2 Years