Originally Posted by eng-399
So when you swapped out your ht-18's and installed the um-18's it was a big enough difference to your ears right away. Hmmm you have me thinking part of me is lazy to not build more boxes.
Swapped? No, I have 4 of each
Not just my ears, the tactile feel was the biggest difference on my suspended floor (2nd story room). The pressure was definitely notable, but the tactile feel is what caught my attention the quickest, and most notable gain.
I think if you went with something huge like the HST-18s up front and added those HT18s nearfield, it would be night and day. Even the DS4s, UM-18s, or something similar would be a worth while upgrade. The HT18s are amazing for the price, but don't do well with serious low LFE, ULF output because of their power handling (my experience with only a couple - but if you have 12 of them, you're just not going max out those drivers) But they seriously pound nearfield for a bang for buck ratio.
I'm not dogging on the HT18s, it's just weird to explain. On a budget, they handle ULF, but something like the UM-18s just do such a better job at it.
PS: also understand I have a much smaller room than you, so even little driver upgrades result in a big upgrade.