questioned
Junior Member
Is there a significant reason to choose one over the other for competition?
You are talking low power as well. Class D amps are typically higher power and high current amps made to run multiple subs at a low impedance and do so at a high efficiency. If this is not what you need, then a Class A/B will work fine. At lower power, efficiency is not as important. For example, if your 200 watt amp draws 300-350 watts from your charging system at full power, that's not that big a deal, but if your 1000 watt amp is drawing 1500-1850 watts, then you will have charging system issues. You also have to figure out how to get rid of 500-850 watts of heat. Big amps have to be efficient to be practical, but with small amps its just not that critical, so you don't see many small class D amps.but A/B amps when brigded have more output ( RMS) than a D amp with the same money....
many of the D amps (lower than $200) i see have an output around 150x1 or 300x1 but if you get an A/B 2chan or multi amp are like 150x2 (rms)
if i wanna run 2 subs 250W rms each what D amp will i have to buy? (500x1 ? but i would want like 800$ )