Hi Troels
I've finally finished the SBA-741 Bass Module to go with the SBA-741 I finished a while back. What a great system. Thanks so much for working with Jantzen audio to make your designs available. I'm incredibly happy with the result. I can't believe how much better it sounds now, even at a low volume. I was really happy before with just the SBA-741 on its own... but wow, I didn't even know what I was missing.
I did a couple things differently however. Rather than using the discrete high-pass into the 3 way and the hypex plate amp, I have used a MiniDSP FlexHTX to build the filters, and I'm running a 2ch Purifi Audio based amp on both sides.
Original Build: https://photos.app.goo.gl/by6TVakDsowxT9dAA
Bass Module Build: https://photos.app.goo.gl/M2KVHo47WKPG6H7TA
Full System: https://photos.app.goo.gl/MMQ7iNv9Ey1taeVj8
Thanks again,
-Tom

See Tom's 1st report: http://www.troelsgravesen.dk/SBA-741_Tom.htm