Ashly nX754 Power Amplifier (4 x 75W)

PA SKU # ASH NX754 MFR # NX754
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  • Product Highlights
  • Class-D Switching Amplifier
  • 4 x 75 Watts @ 2 Ohms
  • Multi-Mode Operation
  • Energy Efficiency
  • Extensive Protection Circuitry
  • Euroblock Input/Output
  • Detachable AC Connector
  • CE, FCC, RoHS Certified
Power 2 x 75W 2 x 150W 4 x 75W 4 x 150W

nX Series 4-Channel Multi-Mode Power Amplifier 4 x 75 Watts @ 2 Ohms

The nX Series 4-Channel Multi-Mode Power Amplifier from Ashly is capable of driving 2, 4, and 8 ohms loads at full power and offers a maximum rated output power of 150W per channel at 25V, 70V, and 100V modes. It features a universal switch-mode power supply with PFC (Power Factor Correction) that operates from 70 to 270 VAC. The multi-mode output capability allows each individual amplifier output channel to be set for low-impedance (2, 4, and 8 Ohms) or constant voltage (25, 70, or 100V) operation using DIP switches.

The amplifier has power-saving Ashly EMS (Energy Management System) that provides an automatic sleep-mode drawing less than 1W. It is suitable for live sound and fixed installation sound systems in stadiums, arenas, performance venues, places of worship, and convention centers.
  • Utilizes Class-D switching amplifier technology
  • Selectable 80 Hz second-order Hi-pass filter, limiter, and input gain per channel
  • Remote DC level control per channel
  • Extensive protection circuitry, continuously variable cooling fan
  • Euroblock input and loudspeaker connectors
  • Detachable AC mains line-cord connector
  • CE, FCC, RoHS certified
  • Number of Channels: 4
  • Voltage Gain: Selectable at 26, 32, or 38 dB, or 1.4 V
  • Damping Factor: >250 (8 Ohms load <1 kHz)
  • Filter: Input High Pass Filter: 80 Hz second-order
  • Distortion:
    SMPTE (Typical): <0.5%
    THD-N (Typical): <0.5% (8 Ohms, 10 dB below rated power, 20 Hz to 20 kHz)
  • Channel Separation: -75 dB (dB from full output, 1 kHz)
  • Signal-to-noise: >96 dB (un-weighted 20 Hz to 20 kHz, Gain @ 26 dB)
  • Frequency Response: 20 Hz to 20 kHz, ±0.05 dB
  • Input Impedance: 10 kOhms
  • Balanced Input: Euroblock 3.5 mm
  • Maximum Input Level: +21 dBu
  • Speaker Output: Euroblock 7.62 mm
  • Level Control: Remote DC Level Control: Euroblock 3.5 mm - Gnd, CV, V+ per input
  • Attenuation: Per Channel: Rear panel, fully off= mute
  • Front Panel LED Indicators:
    White LED:
    Power Switch: On, off, flashing (standby mode)

    Red LED:
    Protect: On (fault condition or shut down), Off
    Clip / Mute (Per Channel): Clip @ 1 dB below rated output / mute

    Blue LED:
    Sleep Mode: On (when the amplifier is asleep from audio inactivity)

    Yellow LED:
    Disable: On (when the power switch & attenuators are disabled)
    Temperature (Per Channel): On dim at 90% maximum operating temperature, full bright + protect at 100%

    Green LED:
    Signal (Per Channel): -18 dB, below rated output
    Bridge (Per Channel): Pair, On, off
    Current (Per Channel): Brightness is proportional to output current
  • Protection Circuits: Inrush current limitation, temperature monitoring, output over-power protection, and mains fuses
  • Cooling: Continuously variable temperature controlled fan
  • Nominal Voltage: Input: 120 to 240 VAC @ 50/60 Hz
  • Operating Range: 70 to 270 VAC @ 50/60 Hz
  • Power-Up Action: Minimum Power-Up: 70 VAC @ 50/60 Hz
  • Power Supply Type: SMPS with active PFC (Power Factor Correction)
  • AC Mains Power Cord: Connector: Detachable NEMA 5-15 for USA
  • Maximum Output Power:
    Low Impedance Output Mode (All Channels Driven at Rated Load):
    2, 4, & 8 Ohms: 75 W
  • Low Impedance:
    Low Impedance Output in Bridge Mode (All Channels Driven at Rated Load):
    4, & 8 Ohms: 150 W
  • Voltage Output:
    Constant Voltage Output (All Channels Driven at Rated Load):
    25, 70, & 100 V (Per Channel): 75 W
  • Power Draw:
    Total AC Mains Power Draw (Typical Input):
    Sleep Mode: <1 W
    Standby Mode: 25 W
    Idle (No Signal): 53 W
    Typical Input (1/8 Max Power @ 2 Ohms): 142 W
  • Current Draw:
    For 120 VAC (Typical Input, Total for all Channels):
    Sleep Mode: 94 mA
    Standby Mode: 0.27 A
    Idle (No Signal): 0.5 A
    1/8 Max Power @ 2 Ohms: 1.24 A

    For 240 VAC (Typical Input, Total for all Channels):
    Sleep Mode: 47 mA
    Standby Mode: 0.135 A
    Idle (No Signal): 0.25 A
    1/8 Max Power @ 2 Ohms: 0.62 A
  • Thermal Dissipation:
    Typical Input (Total for all Channels):
    Sleep Mode: 2.14 BTU/hr
    Standby Mode: 86.4 BTU/hr
    Idle (No signal): 180 BTU/hr
    Typical (1/8 Max Power @ 2 Ohms): 355 BTU/hr
  • Environmental Conditions: 32 to 120°F (0 to 49°C), non-condensing
  • Dimensions (W x H x D): 19.00 x 1.75 x 14.54" (483 x 45 x 369 mm)
  • Weight: 12.1 lb (5.5 kg)
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