Originally Posted by dbldare
I have checked out Bill's site and he has a few different sizes of the THTs. You built the 24" one. With my specs I can fit up to a 32" box through my doorway to get down to the basement so the 30" version would fit. Would I be getting that much 'more' out of the bigger version? Also, do they use the same driver? I have 2 eD190v.2's (18") still in boxes and an ep2500 waiting for a rather large build
, but from the sounds of it you would recommend the THT over the twin 18" monster with a ton of power? My current plans are probably an easier build compared to the THT for me because this will be my first HT subwoofer. I've built many car subs. Are they a more difficult build?
I guess to go way over the top......... I have the room for both.
Would they compliment each other? You state that you are looking to get rid of your LLT, so my guess is that either you don't have the room or you just flat don't need it because of the performance of the THT. Have you run both at the same time?
One other thing. I watched your videos and you were worried about your neighbors coming over to complain. Are you in a single family home / de-attached home? Not a condo or apartment?
Thanks for a great thread and for any information you can throw my way.
The wider 30" would give you a slightly smoother response. The down side of wider panels besides an overall larger foot print is it will be a little more of challenging securing and gluing the wider panels in place. The 24.5" width seems like the sweet spot where there are diminishing returns the larger you go. Regardless of width, they both use the same driver selection.
I have never heard the eD190v.2's but I suspect if it even had double the performance of my IXL18.4's, I'd still think a single THT would easily overshadow a couple of them in LLT enclosures in both SQ and SPL.
I've built 6 or 7 car audio enclosures, sealed and ported and last year I built my first HT sub, the LLT. I would consider myself an n00b/amateur in wood working. Bill Fitzmaurice has a scale on the Construction Degree of Difficulty. The THT is rated a 4. There are 10 internal panels, Since all of the angles are less than 10 degrees, you can use 90 degree cross-cuts, just make sure you caulk well with the recommended glue (PL Premium) for any air leaks. Despite having a table saw, I preferred to use a circular saw. Will it take longer to build than say a SonoSub or sealed/ported alignment? Yes but the degree of difficulty in construction isn't really that much greater. And I would say it's actually easier from an assembly perspective as the detailed plans outline how to do everything.
My original intention before the THT was built was to run both the LLT and THT in tandem. I actually thought the LLT wouldn't have a problem keeping up. After hearing both the THT and LLT side by side, The LLT only seems to detract away from the effortless low distortion sound the THT produces. And with the THT's ability to get to insane levels of SPL while maintaining ultra low distortion levels, the LLT is really now obsolute. The value it would bring would be more detrimental to the total sound.
As far as my house goes. It's a 3200 sq foot single family home. The media room where the THT lives in 19' x 23' x 9'. I DEFINITELY would not recommend this sub if you live in an attached apartment, town home or condo.
To give you perspective, I'm on a corner lot so I have an advantage where the house is sitting. Towards the front my adjacent neighbors are 40-50 feet away. Towards the back, 20 - 25 feet. The media room is actually sublevel and has cinder blocks half way up the wall and on the wall that the horn is bouncing it's sound off of has doubled up studs and insulation . The floor in this room is also concrete.