I´m looking at this amps, one a combo and the other a head... http://www.guitarcenter.com/Laney-Ironheart-All-Tube-30W-1x12-Guitar-Combo-J06800-i3637106.gc http://www.guitarcenter.com/Laney-IRT60H-60W-Tube-Guitar-Amp-Head-J00132-i3286184.gc I´m at the moment where i think that the 30 watts should be ok but beacuase of the 1x12 speaker will not give me enough volume (i know i´m wrong, but i need someone to tell me that, please!) but in the other hand i have the 60 watts, i cand adjust the wattage if i don´t need the 60 watts and choose the cabinet size i want. My questions are: Does size of the speaker matters for volume? Obviously yes, but i want the explanation. The 60 watt amp will sound louder with a 1x12 cabinet than the 30 watts combo amp? For how many people the 30 watt amp can handle at a gig? thanks!