Yes, please list all the information you can.
Sub model(s) {hopefully they are identical subs}, amplifier model, vehicle this is going into, music preference, end goal, etc etc.
Depending on power handling and power able to "really" be produced, running just one of them in a ported enclosure to proper specs has the ability to produce as much as both in a sealed enclosure, all while taking up similar or less cargo space. However, running ported requires the use of a infrasonic/subsonic filter, very low tuning, opting to not play music with audio recorded below the tuning, or running the setup at half or less rated power.
Sub model(s) {hopefully they are identical subs}, amplifier model, vehicle this is going into, music preference, end goal, etc etc.
Depending on power handling and power able to "really" be produced, running just one of them in a ported enclosure to proper specs has the ability to produce as much as both in a sealed enclosure, all while taking up similar or less cargo space. However, running ported requires the use of a infrasonic/subsonic filter, very low tuning, opting to not play music with audio recorded below the tuning, or running the setup at half or less rated power.