Yes, it's another one of those, not very exciting. But, I figured I'll throw up some pictures because why not - and, to give people an idea of what that Duratex paint looks like.
I bought two flat pack + UM18-22 kits from PartsExpress a couple of months ago. The lack of an amp (research here
) and no dedicated build space meant the project was left idle. Also, the current HSU Research ULS15-MK2 was doing a really good job, especially paired with a MiniDSP.
Now that we've in a house, I have some space, so decided to finally assemble / build the boxes.
I made two mistakes.
The first one was the severe / serious one. In my haste, I figured I could balance an enclosure on top of a trolley to be able to paint all sides at once. It worked, until it didn't... with a loud bang heard from the living room, the box fell down on the concrete floor in the garage and dented a corner. Upon closer examination and knocking on the walls, it appeared one wall had gotten unstuck from the rest of the enclosure as the note was much deeper when knocking on it.
I decided to, instead of trying to take it apart, add glue on the seams wherever possible and use L brackets and screws to secure it in place. Now it sounds much better, we'll see how it actually works once I start testing.
The second mistake I made was installing the driver without any stuffing in the box. I thought I was all done, looked around and saw a bag of white fluff... great.
From my experience:
- Looks really sleek when finished (I used a roller for the paint)
- Paint dries super fast
- The cones on the subwoofers have a nice carbon fiber look without a dust cap
- The boxes aren't that much bigger than the HSU. They are a bit taller, yes, but not much wider.
- It would be nice if Parts Express sold a complete kit, with the screws, glue, terminals, speaker wire, paint etc. for a bit of a discount if you buy a complete kit
- The finished boxes are quite heavy
- ... but the driver itself is not that heavy
How does it all sound? I don't know. My amplifier is not here yet (I hope it makes it before Thanksgiving...!). I ordered it from BH Photo Video on 10/20, and it still says back ordered. Crest Audio Pro-LITE 7.5 Professional Power Amplifier (7500W, 2RU)
Once it arrives, I'll pair it up with MiniDSP and follow the guide(s) out there on how to properly EQ two subs. Then post graphs, obviously!
For now, a quick graph from the current HSU setup will have to do. The signal chain is Marantz SR5010 AVR > MiniDSP 2x4HD > sub. Ignore the sub running hot compared to the mains, I know!
Now the Dayton build pictures. Scroll past these to see the measurements (yes, the amp arrived!)
Left sub only - no EQ (followed by group delay)
Right sub only - no EQ (followed by group delay)
Both subs EQ'd individually with REW one by one (not using MSO, still learning), followed by GD graph. No Audyssey.
As above, but with Audyssey, followed by GD graph.