NXL550 R1.0 Power Amplifier
HPA-NXL550 R1.0 Power Amplifier Module
The NXL550 R1.0 amplifier module is a high performance, hi end amplifier module capable of over 500 watts into 4 Ohms and is 2 Ohm Stable for short periods (60 sec).
It features the option of adding separate regulated input/driver stage supplies for even high performance.
The current power measurements were done on a +-70vdc linear power supply, higher power outputs can be achieved with voltage supplies as high as +-75 volts and with other versions that are capable of handling DC power supplies as high as +-90 volts DC.
The main PCB has an over temperature and over current LED status Flag which also serves as an output clipping indicator.
Specifications:
powered from +-70vdc linear power supply
8 Ohms: 245W
4 Ohms: 425W
+-80vdc linear power supply
8 Ohms: 300W
4 Ohms: 545W
Powered from a Micro Audio SMPS1k-SN Switching Power Supply +-70vdc
8 Ohms: 265W
4 Ohms: 475W
2 Ohms: 684W
Frequency Response: 20Hz-20Khz, -0.1db, 3Hz-210KHz, -3dB Input filter limited.
THD: 0.002%, 1khz, @200W into 8 ohms: 0.01% 10khz @200 Watts into 8 Ohms
IMD: 0.002%, @200W RMS into 8 ohms
SNR: -110dB, Unweighted, referenced to full output; -114.6dB A-Weighted
Damping Factor: 800 into 8 ohms, 100Hz
Gain: 25.84 (28.24dB)
Input Impedance: 22k Ohms Unbalanced:
Inputs: RCA Phono
Recommended Linear Voltage Supply +-70 Volts DC
For higher power output +-75vdc can be used.
PSU Power Transformer secondary windings 50vac (800VA)
Printed Circuit Board Dimensions 105mm x 72mm
Small form factor PCB
Designed as high performance Home Theatre multi-channel amplifier
Or High End 2 Channel stereo amplifier
Unconditionally Stable into any load from 4 ohm loads and up
Extra Heavy Duty Two ounce copper printed circuit board
Rugged high performance complementary Dual Die Lateral MOSFET Output Stage.
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