Ashly Nx1504 Nx Series 4-Channel Multi-Mode Power Amplifier 150W

by Ashly

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Ashly NX1504 overview


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

Ashly NX1504 specs

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 >99 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: 150 W
Low Impedance Low Impedance Output in Bridge Mode (All Channels Driven at Rated Load): 
4, & 8 Ohms: 300 W
Voltage Output Constant Voltage Output (All Channels Driven at Rated Load): 
25, 70, & 100 V (Per Channel): 150 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): 230 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: 2.2 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: 1.1 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): 505 BTU/hr
Environmental Conditions 32 to 120°F (0 to 49°C), non-condensing
UPC: 801128921662