The 20 x 12 bass drum that came with my Sonor Safari kit has worked for me as Ross said- just right for smaller gigs and fitting in tight real estate. Also, when mic'd up, it can get the job done quite well for most medium-large sized venues.The studio I play in has one & it's great as the engineer can dial it in perfectly. Not too boomy & just the right amount of punch.
They're great for smaller gigs too. Fit great on smaller stages.