Ross Cullen from Belfast’s newest independent promoters gives Cathal McBride the lowdown on the DIY spirit behind their packed-out shows across the city Photo by David McEneaney  For such a relatively small city, Belfast often punches above its weight in terms of live events, both in terms of big-name bookings from larger promoters and those on the more DIY side, like the brilliant Strange Victory or the now sadly departed Sizeable Bear. A newer name in the city’s DIY promoter circuit is Asphyxia. Helmed by Ross Cullen, Ethan Rea, Conall Coulter and Sienna-Lillie Munn, they have hit the ground running…