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The nXp Series NXP4004 4-Channel 400W Power Amplifier with Programmable Outputs & ProteaSoftware Suite from Ashly is a Class-D switching amplifier combined with a switch mode power supply. This amplifier meets the requirements of demanding live sound and fixed installation sound systems in stadiums, arenas, performance venues, worship spaces, and convention centers.
This amplifier features the Protea DSP processing for efficient control. The rear panel has DIP switches for programming each channel output for either High-Z or Low-Z operation. This amplifier can be connected to a network with Ethernet control and features serial data control, aux preamp outputs, instant standby mode, preset recall, fault condition logic outputs, and optional network audio and digital audio capability, all controlled using the included Protea Software Suite.
The amplifier offers 32-bit SHARC DSP processing (with 48 & 96 kHz sampling) for comprehensive audio processing and built-in signal generator for test tone and noise-masking. It also offers swept load impedance monitoring on each amplifier channel output.
4-Channel high-output amplifier with programmable output on each channel (High-Z or Low-Z, selected via rear panel DIP switches)
Power-saving, Energy Management System with automatic <1W sleep-mode (defeatable)
Front panel power switch and level controls (can be disabled for security)
Rear panel DIP switches per channel for selection of high pass filter, limiter, input gain, and High-Z or Low-Z speaker output configuration
Remote DC level control on each input channel
Switch mode power supply automatically detects 120 or 240VAC operation
Extensive protection circuitry and continuously variable cooling fans
Multiple independent internal power supplies provide increased channel separation and reliability
Ethernet port for control and monitoring of amplifier functions, with front panel COM activity LED
Serial data port for use with Ashly remote control devices, or optional RS-232 converter for third party controllers (not included)
Use Protea software to remotely disable all front panel controls, including the on/ off switch, for a tamper-proof installation
Sampling Rate: At 48 kHz (Input Time, Distance & Temperature) Speaker Delay: 0 to 21 ms Delay: 0 to 682 ms
At 96 kHz (Input Time, Distance & Temperature) Speaker Delay: 0 to 10.6 ms Delay: 0 to 341 ms
Range: -60 to 20 dBu Increments: 1 dB Peak Hold Indicator
Pink Noise, White Noise, Sine Wave Signal Level: Off, -50 to 20 dBu Sine Wave Frequency: 20 Hz to 12 kHz
Input A/D, Output D/A: 24 bit DSP Processors: 32-bit floating point Sample Rates: 48 kHz, 96 kHz Propagation Delay @ 48 kHz: 1.42 ms Propagation Delay @ 96 kHz: 0.71 ms
Gain (0.5 dB Increments): Off, -50 to 12dB Mute: Per channel Auto-mixer Enabled: Per channel Global Auto-mixer Response: 0.01 to 2 sec Enable Ducking at Mixer Ducking LED: Per channel if enabled Metering: Level, auto-mixer level
At 50 Hz Nominal (Automatic Sensing SMPS): 120 VAC Operating Range: 70 to 135 VAC Minimum Power-Up: 85 VAC
At 60 Hz Nominal (Automatic Sensing SMPS): 240 VAC Operating Range: 140 to 270 VAC Minimum Power-Up: 170 VAC
Power Cable Connector: 20 A powerCON
Maximum Output Power
Per Channel, Low-Z Output, All Channels Driven 2/4/8 Ω: 400 W
Low Z Output, Bridge Mode, All Channels Driven: 800 W (4/8 Ω) 70V, 100V Output, All Channels Driven: 400 W (70/100 V (per channel)
Sleep Mode: < 1 W Standby Mode: 40 W Idle (No Signal): 70 W
All Channels Driven
For 120 VAC Sleep Mode: 0.1 A Standby Mode: 0.70 A Idle (No Signal): 1.30 A
For 240 VAC Sleep Mode: 0.05 A Standby Mode: 0.35 A Idle (No Signal): 0.65 A
Maximum, All Channels Driven, Typical Input 1/8 Max Power @ 2 Ω): 5 A for 120 VAC, 2.5 A for 240 VAC
Thermal Dissipation: Sleep Mode: <3.4 BTU/hr Standby Mode: 136 BTU/hr Idle (no signal): 238 BTU/hr Typical (1 / 8 Max Power @ 2 Ω): 595 BTU/hr
All Channels Driven
Front Panel LED Indicators White: Power Switch: On, off, standby (flashing)
Red LED: Clip / Mute Per Channel: Clip @ 1 dB below full output / mute Protect: On (fault condition or shut down), Off
Green LED: Signal Per Channel: -18 dBu, below rated output Bridge Per Channel Pair: On, off Com: On, for Ethernet data or device ID Current Per Channel: Proportional to output
Yellow LED: Temperature Per Channel: On dim at 90% maximum operating temperature, full bright + protect at 100% Sleep: On, amplifier is asleep from audio inactivity Disable: On, power switch & front panel attenuators are disabled