You could seal off the missing 6 but the volume will be all wrong and the crossover will be all wrong so it won't be sounding like it's supposed to. And you'd have to listen for the remaining 6 not keeping up. Skip espresso, pizza and beers for another month?
Team Trace Elliot #1, Mediocre Bassist #399, Old Basstard #86 Kala U-Bass #22
Swamp Kauri custom 5str. Stagg EUB. Krappy 5er FL.