NEXO NXAMP 4X4 เพาเวอร์แอมป์ เครื่องขยายเสียง Power Amplifier 4-channel digital processing  

 NXAMP 4X4 is an ultra-flexible, true four-channel digital processing and amplificationsystem delivering an integrated solution for any NEXO speaker configuration. NXAMPtechnology is far more sophisticated than simply abundled power amplifier and loudspeaker controller. The application of advanced DSP allows multiple digital sense lines to protect simultaneously the amplifier and the connected speakers.

The NXAMP 4x4 uses a unique dual mains cord, feeding the power supplies with almost twice the power of that in a conventional amplifier design, while being extremely easy to connect to any single or multi-phase mains supply. To absorb this enormous current, the NXAMP4x4 uses four independent, high-power, full resonant power supplies working in opposite phase to cancel noise and lower EMC.

Yamaha EEEngine technology delivers maximum efficiency in drive performance and power, with the sonic purity of conventional class AB amplifiers, and heat dissipation equivalent to class D. Dual-core DSPs take care of amplifier protection and optimisation, while raising the processing standard of NEXO proprietary loudspeaker management technology to higher levels of sonic performance and reliability. Additional features include full computerless front-panel operation and on-the-fly independent

loudspeaker per output selection or load monitoring through GPIO or Ethersound™.

POWER SPECIFICATIONS FOR NXAMP4x4

 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

INPUT TO POWER OUT SPECIFICATIONS

 Frequency response +0.5 dB from 10 Hz to 20 KHz

 Input impedance / Max. level 20 K / +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

BACK PANEL FEATURES

 Analog audio inputs 4x balanced analogue inputs on XLR3 with a second XLR3 for link

 Power outputs 4x Neutrik Speakon NL-4 outputs

 RS232 port 1x DB-9 connector for firmware upgrade and accessories connection

 GPIO port 1x DB-25 connector with 5x Global Purpose Inputs and 8x Global Purpose Outputs

 Expansion slot For networking audio cards, 4x digital audio inputs and remote control

 Mains sockets 2x Neutrik Powercon NAC3 (2x 16 A) or NAC3-HC (2x 32 A) depending on model

USER INTERFACE AND CONTROLS

 Front panel buttons and knobs On/Off Mains switch, Select Wheel, 2x Menus buttons, 4x Select and 4x Mute buttons

 Display 40 characters by 2 lines LCD display with LED backlight.

 Global status display Power, Standby and Amp Protect LEDs.

 Speakers/Amp status display Per channel, output current sensing, speaker protection and channel soft clip.

DIMENSIONS AND CERTIFICATIONS

 Dimensions 4U 19" Rack - 457 mm (18") Depth

 Weight 24.5 Kg (49 lbs) net

 Electrical Safety Certification cETLus, CB (CE)

 EMC Certification CE, FCC

 Green status Compliant with ROHS directive

 ORDERING INFORMATION

 NXAMP4x4 (for 110/120 V mains) NX.AMP4x4U (1 x NXAMP4x4U, 1 x Quick Start, 2 x US power cords)

 NXAMP4x4 (for 220/240 V mains) NX.AMP4x4C (1 x NXAMP4x4C, 1 x Quick Start, 2 x CH power cords)

 NXAMP4x4 (dual voltage mains) NX.AMP4x4W (1 x NXAMP4x4W, 1 x Quick Start)

 NXAMP4x4 handles kit NX.AMP4x4-HAND (2 x NXAMP4x4 handles w screws)S

New Features

 New dual-voltage version

 Optional Dante™ and EtherSound™ network cards

 New Firmware LOAD 3.0

 • Set up selection per channel

 • Linear phase on all set-ups

 • All systems compatible 20Hz-20kHz