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I am making an 85L Vented enclosure to go with my DPL12. This will probably replace the 54L because I can just plug the port if I do not like the vented application and I’ll have a nice 85L sealed box. So what do I do with the 54L? I have no use for a sub anywhere else. Maybe put a Shiva in...

As you can see from my previous post on the sealed 54L DPL12, I got a pretty good in room response. However, I am going to make an 85L vented design and see which I like best. All of this at calibrated levels, of course. My question is - would this work very well with these parameters: 85L...

Last night I tested my DIY Down Firing 54L DPL12 w/ 16oz of polyfill. The results were encouraging and frustrating. Parameters: Sine waves from 20-70 @ 5 Hz intervals until 40 Hz In corner of room with SPL meter @ 1 meter away Phase set to 0 Crossover set to ~90 Hz Sub Volume @ 40-50%...