The new R5.3 Amplifier Module!

Decoupling caps increased from 150uf to 390uf and more!

The NXL200 R5.3 is a brand new high performance audio power amplifier module, delivering world class high end sound quality from a very compact all SMT component design.

Featuring very high precision low noise current sources, no input/output capacitors anywhere in the signal path including the feedback, it has a high precision low noise DC servo circuitry to correct DC offset to lower than 1mv, even any DC presented on the input will be corrected.

The design also features very low SNR at -110db with respect to full power output.

Multiple channels can be added onto a common heat sink for home theatre amplifiers.

All this with a footprint no larger than 70mm x 60mm.

Specifications

170 Watts RMS continuous sine wave into 8 Ω Capable when used on a 63vdc supply
260 Watts RMS continuous sine wave into 4 Ω Capable when used on a 63vdc supply
The HPA-NXL200 R5 is 2 Ω Stable
Biased into Class A/B
Frequency Response 3.5hz to 300khz -3dB
Damping Factor At 100hz 8Ω = 800
XLR Balanced input impedance 40kΩ
Balanced Input Gain 30dB
RCA Single ended Input impedance 20kΩ
Single Ended Input Gain = 27dB

SNR -110dB
THD-N = 0.005% @ 130 watts 8 Ohms
Recommended Linear Voltage Supply +-63 volts DC;  Maximum supply +-70vdc
PSU Power Transformer for stereo secondary windings 30VAC-45VAC (400VA)
Printed Circuit Board Dimensions 70mm x 60mm
Recommended Conrad Heat Sink MF25-75
Ultra 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.
 

FFT of the NXL200 R5 driving 8 ohm load   

Basic list parts needed to build 1 x Mono Block NXV200L Amplifier.

• 1 x HPA-NXL200 R5.3 Amplifier Module
• 1 x HPA-NXVPSU One Power Supply Board
• 1 x HPA-Power Two R1 AC Mains Controller
• 1 x HPA-Solid State Relay Loudspeaker protection module
• 1 x 300VA toroidal power transformer with 2 x 30-55VAC secondary winding
• 1 x Conrad MF30-75 heat sink