Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

its not really advisable to mix size subs

because they have different tonal signatures which cancel out some of the bass produced

For example 2 10s and 15 the tens will cancell out the sub bass which is the fun part

seen a corsa with a 15 in the boot then a 10 either side of the back seats in those plastics but the plastics were rebuilds of fibre glass n the two tens were free airs. it sounded amazin though.