Acoustic black holes (ABHs) have been so far investigated mainly for bending wave manipulation in mechanical structures such as beams or plates. The investigations on ABHs for sound wave manipulation, referred to as Sonic black holes (SBHs) are scarce. Existing SBH structures for sound reduction in air are typically formed by installing a set of rings inside a circular duct with decreasing inner radius according to a power law. As such, the structure is very complex and difficult to be practically realized, which challenges the practical application of SBHs for sound reduction. This study explores the possibilities of achieving SBH effects using other types of structural configurations. In particular, micro-perforated panels are proposed to be introduced into the conventional SBH structure. Simulation results show that the proposed SBH structure requires a small number of rings and is more efficient in terms of sound energy trapping and dissipation.