NEXO NXAMP 4×2 MK2 – 4-Channel Powered Digital TD Controller

The NXAMP 4×2 MK2 is a 4-channel digital amplifier and controller designed to deliver high-performance amplification and precise loudspeaker management for NEXO systems. It combines advanced DSP with robust Class-D amplification in a 2U rackmount unit.

Power Output

• 4 × 1200 W at 8 ohms
• 4 × 1900 W at 4 ohms
• 4 × 2500 W at 2 ohms
• Bridge mode supported:
  • 2 × 3800 W at 8 ohms
  • 2 × 5000 W at 4 ohms

DSP & Processing

• High-resolution 24-bit / 96 kHz AD/DA conversion
• Latency: approximately 580 microseconds (flat response mode)
• Three 64-bit multi-core DSPs for real-time processing
• Processing includes:
  • EQ (graphic and parametric)
  • Crossovers
  • Delays (up to 1000 ms)
  • Peak limiters
  • Speaker protection algorithms

Inputs & Connectivity

• 4 × analog XLR inputs (with cascade capability)
• Optional digital input cards:
  • AES/EBU
  • Dante
  • EtherSound
  • AES67
• Automatic analog fallback for redundancy
• Dual Ethernet ports for remote control and daisy-chaining
• RS-232 and GPIO ports for integration

User Interface

• 4.3-inch color touchscreen with rotary encoder and tactile buttons
• Onboard control of all routing, settings, and presets
• Intuitive menu system designed for both quick setup and advanced configuration

Protection & Power

• Comprehensive protection circuitry:
  • Short-circuit
  • Overload
  • Overtemperature
  • DC offset
• Intelligent power management
• Universal power supply (100–240 VAC) with Power Factor Correction
• Standby power: ~10 W
• Idle power: ~200 W

Physical Specifications

• Rack Size: 2U
• Weight: Approx. 16.1 kg
• Cooling: Variable-speed fans with front-to-rear airflow
• Operating Temperature Range: 0°C to +40°C

Key Features

• Full integration with NEXO speaker presets for plug-and-play operation
• Advanced DSP with very low latency and high dynamic range
• Bridgeable amplifier pairs for flexible deployment
• Remote controllable via NEXO NeMo software or third-party systems
• Designed for touring and fixed installations

Ideal Applications

• Touring systems with GEO or STM series loudspeakers
• Fixed installations in theaters, clubs, and houses of worship
• Scalable systems requiring network control and flexible routing
• Subwoofer and full-range speaker management in single or multi-zone setups