PA-HC2
Build your own High Quality Sound Amplifier 
For Stereo Power Amplifier 
or 
Multi Channel Power Amplifier System
or
Guitar Power Amplifier 
50W Bipolar Audio Amplifier assembled & tested
Perfect Solution for Multi Channel Power Amplifier System
 Small High quality and reliability RED FR4 1.6MM PCB 
Output Stage with 4 Transistors Can drive down to 2ohm Speaker
Excellent performance Amplifier
This item is PCB with all components assembled ready to use. only need Heatsink and Power Supply
Easy and simple to connect. 
The recommended transformer for this amplifier is:
2-4 Ohm Stereo version: 2X18Vac 5A (250-300VA)
8 Ohm Stereo version: 2X25Vac 3.5A (200VA)

Working Voltage: +25 0 -25 Vdc to MAX. +35 0 -35 Vdc 
Power Out: 75W @ 4Ohm [+/-30 VDC] OR 45W @ 8Ohm [+/-30 VDC]
PCB Size: 64mm*64mm double-sided Red HAL,FR4 1.6MM

Specification:

RMS continuous power:

55 W Into 8Ω @ 2X35 Vdc

75 W Into 4Ω @ 2X35 Vdc

90 W Into 2Ω @ 2X25 Vdc

50 Watts driven into a 4Ω load (tested with 2X25V DC Power Supply)

60 Watts driven into a 8Ω load (tested with 2X35V DC Power Supply)

0.012% Total Harmonic Distortion (THD+N)

Load: 4-8Ω (*** Can work with 2Ω load when use 2X25V DC Power supply)

Signal-to-Noise Ratio: >103dB A-weighted

Frequency Response: 20Hz to 20kHz 

Bandwidth: 15Hz to 65kHz -1dB

Damping factor(100 Hz @ 4Ω): 200

Input sensitivity: 775 mV 0dbm For Max. Power Output

Input impedance: 20KΩ

Load impedance: 2Ω-8Ω

DC Offset: Less +/- 30mv

Quiescent Current: 30mv


ApplicationsDIY HI-FI Home/Car Power Amplifier, HI-FI Home/Car Subwoofer Amplifier