NEXO NXAMP4x4

NXAMP is far more complex than a bundled power amplifier and loudspeaker controller. Significant DSP innovations allows multiple digital sense lines to protect at the same time the amplifier and the connected speakers. First the NXAMP4x4 uses a unique dual mains cord, feeding the power supplies with nearly twice the power than most audio amplifiers today, still being extremely easy to connect to any mono or multiple phases mains. To absorb this enormous quantity of current the NXAMP4x4 reveals four independant high power full resonant power supplies working in opposite phase, thus cancelling noise and lowering EMC.

NXAMP4x4 uses advanced custom components based power amplifier design, the ultimate evolution of the Yamaha’s EEEngine technology, offering the sonic purity of conventional class AB but a heat dissipation equaling the class D. Not only the two dual-core DSPs are taking care of the amplifier protection and optimization, but they also redefine the processing standard of NEXO proprietary loudspeaker management technology to a higher sonic performance and reliability level.

With useful features such as full computerless front panel operation, on the fly independant louspeaker per output selection or load monitoring trough GPIO or Ethersound™/AES/EBU/Dante™ network for safety installation, the NXAMP4x4 is ideal for a wide variety of demanding applications.
Key Features

Ultra flexible true four channels digital processing and amplification solution offering a perfect match to any NEXO speakers
Among the industry’s most powerful four channels amplifiers
Cost effective integration of command, control, protection and amplification of all NEXO speakers systems
Lighter and requires less rack space than conventional amplifier-processor systems
Eliminates unnecessary A/D conversion
Optional Dante™, EtherSound™ or AES/EBU network cards

Specifications
Number of channels 4x amplifiers channels, 2 by 2 bridgeable
Max. output voltage (no load) 4x 200 Volts
Max. output power (4 channels mode /8 Ohms load per channel) 4x 1900 Watts
Max. output power (4 channels mode /4 Ohms load per channel) 4x 3300 Watts
Max. output power (4 channels mode /2 Ohms load per channel) 4x 4000 Watts
Max. output power (2 channels mode /8 Ohms load per channel) 2x 6800 Watts
Max. output power (2 channels mode /4 Ohms load per channel) 2x 8000 Watts
Power consumption (Standby) 20 Watts
Power consumption (Idle) 120 Watts
Frequency response +0.5 dB from 10 Hz to 20 KHz
Input impedance / Max. level 20 KΩ / +28 dBU
Dynamic range / TDH + N 105 dB unweighted / Typical 0.1% on a flat setup
Latency 500 us on a flat setup
A to D Converters Audio and current/voltage sense lines : 24 bits @ 48 KHz
Processing Two dual-core 24 bits fixed point DSP with 56 bits accumulator