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Nexo NXAMP4X1MK2 Power Amplifier



  • £3,495.00
Usually shipped within 2-3 working days

The Nexo NXAMP4X1MK2 is a ultra-low distortion Class D amplifier combining 32-bit/96KHz converters and 64-bit signal processing to deliver significant advances in sound quality over the already highly regarded previous generation of NXAMPs.

Bass is solid and high-end definition is particularly impressive in a sonic performance that is both articulate and rich with detail. Even at low volumes, the sound is noticeably transparent and pure. 

A flexible audio input system encompasses four, high end analogue inputs using cascaded converters for low output noise. Four digital inputs are also available through the rear panel expansion card slot offering optional AES/EBU, EtherSound™, Dante™ or AES67 inputs, all with automatic analogue fall-back.

A native dual Ethernet card facilitates remote control and daisy-chaining of amplifiers, and seamless integration with Nexo’s NeMo amplifier management software. In addition to the expansion card slot, other rear panel connectivity includes RS232 serial and GPIO ports along with Speakon outputs for each of the four channels. Occupying only 2U of rack space, the NXAMP4X1MK2 weighs in at just 15.7kg.


  • Two settings of Array-EQ
  • User EQ provides up to 8 bands per channel, editable on one or several channels at once
  • Two layers of mute: per-channel and overmute
  • Voltage and Protection Meters give relevant information on System Headroom
  • The band type, frequency, gain, Q and on/off status can be easily edited in full screen view
  • Custom inactive screen
  • Inputs view displays input levels and offers input alignment options
  • Parameters (volume, delay, gain, EQ, input patch, setup…) can be saved in one of the 32 scene slots, and can be copied and pasted
  • NEXO or Custom Setup can be edited on one or several channels
  • Load Monitoring can be enabled and configured on every channel
  • Many parameters and alerts are always recorded into the log
  • System Headroom page gives real time information on amplifier levels and speaker temperature, displacement and protection levels
  • Navigate through menus and edit volume, gain (-18 to +18 dB) and delay (up to 1 second) on one or several channels at once


    Power Specifications 

    • Number of amplifiers channels: 4 x amplifiers channels, 2 by 2 bridgeable 
    • Max. output voltage (no load): 4 x 105 Volts 4 x 140 Volts 
    • Max. output power (4 channels mode/8 Ohms load per channel): 4 x 600 Watts 4 x 1200 Watts 
    • Max. output power (4 channels mode/4 Ohms load per channel): 4 x 900 Watts 4 x 1900 Watts 
    • Max. output power (4 channels mode/2 Ohms load per channel): 4 x 1300 Watts 4 x 2500 Watts 
    • Max. output power (2 channels mode/8 Ohms load per channel): 2 x 1800 Watts 2 x 3800 Watts 
    • Max. output power (2 channels mode/4 Ohms load per channel): 2 x 2600 Watts 2 x 5000 Watts 
    • Power consumption (Standby): 10 Watts 
    • Power consumption (Idle): 200 Watts 

    Input to Power Out 

    • Frequency response: +/-0.5 dB from 10 Hz to 20 KHz 
    • Input Impedance / Max. level: 22 K Ω / +25 dBu 
    • Dynamic Range / TDH + N: 107 dB unweighted / Typical 0.1% on a flat setup 
    • Latency: 550 us on a flat setup 
    • Audio AD and DA Converters: 32 bits @ 96 KHz 
    • Processing: 3 x multicore 64 bits processing DSPs 

    Back Panel Features 

    • Analogue audio inputs: 4 x balanced analogue inputs on XLR3 
    • Power outputs: 4 x Neutrik Speakon NL-4 outputs 
    • RS232 port: 1 x DB-9 connector dedicated for DPU connection 
    • GPIO port: 1 x DB-25 connector with 5 x inputs and 8 x outputs or for DMU connection 
    • Expansion slot: For networking and digital audio cards, 4 x digital audio inputs and remote control 
    • Mains sockets: 1 x Neutrik Powercon NAC3 (1 x 20 A) 

    User Interface And Controls 

    • Front panel buttons and knobs: Rotary Encoder with push and backlight, tactile screen
    • Display: 4.3 inches diagonal colour display, WQVGA, 480 x 272 

    Mains Requirements 

    • Mains voltage: Universal Power Supply with Active PFC 100 - 240 Volts (50/60/Hz) 
    • Power consumption 1/4 max. 2 Ohms: 1900 Watts 3500 Watts 

    Physical & Dimensions

    • Height: 2U 19" Rack 
    • Depth: 506 mm
    • Weight: 15.7 Kg
    • Electrical safety certification: cULus, CB (CE), CCC, PSE, KC 
    • EMC certification: CE, FCC 
    • Green status: Compliant with ROHS directive

          Manufacturer: Nexo

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