yeah I'm going to change the corssover to 250Hz for fun to see what it does. The original plan was back when Kevin at DIYCable was giving away 2 free Anarchy's per Maelstrom-X 21, I was going to purchase 6 MX21s, two for the towers and four for my van, expecting to get 12 free Anarchys then purchase 2 more so that i could go MTM 7 channels, but we couldn't agree on pricing. He only wanted to do the two free Anarchys on the 1st sub. Instead I purchased eight IB3 18's, four for the van and four for the HT. After it was al built the crazy guy offered me $450/each for four MX21s! I told him it was too late, already built. Those tiny little walmart cubes do me just fine, I am very keen on 14kHz on up but unfortunately I have to deal with what I ahve. In my van I have similar to the old Adire Audio Extremis LCRs: Four Adire Audio Extremis 6.4s off two Kicker KX850.4's doing 80Hz-710Hz, two CSS FR125S's off a KX650.4 covering 710Hz-14kHz, and four Vifa XT25TG30 Ring Radiators covering 14kHz-20kHz off an SX500.2. I have an Alpine IVA-W505 touch screen that controls the digital crossover, Alpine PXA-H701.. so all the crossover slopes are set to 30dB/oct but the tweeters are double crossed, using the Kicker SX500.2's 36dB/oct at 14kHz as well for a 66dB slope. Without it the tweeters would start to break up a bit at the listening levels I play at.... I use up a lot of that 500RMS available to the tweets :-O
the new subs going in my van wall, four Fi reconed Blueprint Audio 1803s
reworking the wall and new port, 20" port 24" long 45 cubic feet 23Hz tuning, those are two Audiopipe AP30001Ds you can see through the top right subwoofer cutout, theres two more on the other side, 1 30001D per Fi 18
the extremis sitting out while I modded the sealed enclosures in the van
2 APs on the left, SX500.2 up top, and KX650.4 below
other side, 2 APs and 2 KX850.4s
really messy, not cleaned up yet
still very messy, been cleaned up some since then