most Audio amplifiers can drive big speakers, even the TDA2030, the thing that drives the woofer is the Low frequency coz without the frequency drive it will not pump up if you're playing Rock , love song or classical music, sub speakers will only pumps out to the low frequency.. God bless
i have the slightly less version of that amplifier, it's powering a 15 inch subwoofer and a pair of speakers (20cm woofer + 10cm super tweeter) and it has no problem whatsoever.