Soundmagus H500 5 Channel Hybrid Amplifier 
4*90W + 500W Hybrid amplifier 
RMS power at 14.4V 
2Ohm load            130W*4 +500W 
4Ohm load             90W*4 + 300W 
4Ohm Bridged       260W*2 + 500W

Input Level       0.2 - 5V 
4 x Channel Frequency Response  16Hz - 50KHz 
Woofer Channel Frequency               14- 180Hz 
4 x Channel HPF                                   16- 260Hz 
Woofer Channel LPF                            50- 180Hz 
Woofer SubSonic Filter                        14- 50Hz 
THD at 4Ohm load 30% Rated Power    4x channel < 0.05%, Woofer channel < 0.1% 
Woofer Signal from 4x Channel switch       Yes 
S/N Ratio           >70dB 
Mininum load    2Ohm for all channel 
Optional Woofer Remote     Yes 
Bridgable  NA 
ShortCircuit Test at max power        PASS 
Over heat protect temperature   80C/176F 
Components & PCB     SMT & Double side board 
DIMENSION ( mm) Height 53 x Width 228 x Length 382