Originally Posted by MTBDOC
Nice (ongoing!) work, Chris! Your dedication and effort have been outstanding. Two things really strike me:
- How FAST you were able to construct this beast. I realize you have lots of building experience, but this is obviously far more complex than a simple Marty-type box.
- Your commitment to chasing data, going far beyond the call of duty to keep getting more measurements outdoors.
I will keep following along, especially for your subjective thoughts. I still am a bit mystified about the "devastator sound" that keeps being thrown around. You aren't a guy to get suckered into $1000 cables, but I do realize that there is more to sound than a simple frequency plot. I built a couple of mini-Martys a month or two ago, but haven't begun to dial in my theater as I also have dining room furniture taking up space as I have other projects ongoing (next comes wainscotting for the dining room). I have run this room in "wide mode" for years, but will likely redo the theater "long ways" [16 ' x 22', very open to lots of other space]. Deciding what further subs to build is part of that.
I guess I am curious as to how people with Dev experience rate this quad. Not just as a 'budget' build, but as a devastator PERIOD. How it sounds & performs relative to others with the usual drivers. I have seen some comparative graphs, but await further thoughts on this. IIRC you also said that this was an easier build in some ways.
Carry on, sir!
Compared to many people here, I really don’t have much build experience. I do consider myself a fast learner, lol.
Both the super fast build and the easier assembly come down to the same thing: Reduced time spent on finish and and perfection. Since this was built as a test cabinet/shop sub, I spent way less time on the visually-perfect aspect that I generally strive for. I still was just as careful with panel fitment, leaks are bad.
In general, building one of these will go exactly the same as building any other Devastator. The quad has a slight advantage from not having a port back, and a slight disadvantage from having four driver cutouts, but neither is greatly significant.
The Devastators are the first and only horns I’ve played with. Pretty much everyone using horns describes how they sound different than direct radiators. The “Devastator Sound” is likely just the horn sound, though the dev’s shared climbing frequency response may factor in heavily as well.
I plan to build a very large front loaded horn, and a pair of large tapped horns in the near future, so I’ll have a better idea once they’re running. I’m also building another Devastator variant, the Alpha, so I should have a pretty good handle on the sound.
I took my 18ds115 out of an mbm, and put it into the mini Devastator. Same general placement. Absolutely huge difference in character of sound, and it wasn’t just the additional 20-37hz range.
I will finish up tuning and subjective testing today. As well as opening it up a bit on the additional power.
I will take some in-room distortion sweeps at various levels, not sure if and how they will be informative.