Originally Posted by mdchambe
I am thinking I would like to get into the DIY audio hobby,...My room is roughly 15*30*8 and open to a hallway and staircase. ...
The enclosure for my current sub is pretty large ( I'm just guessing maybe 18w by 24h by 28d) ...
I really would rather do something more traditional, I think. ... [\quote] (quotes don't work???)
First off welcome to AVS forum, and DIY speakers. Please be aware that every internet forum has its unique characteristics, and this one loves horns. If you'd like a bias toward more traditional approaches, try some other forums. More ideas usually yield better solutions.
Second, what's your goal, beyond "getting into DIY?" Subs are a good starting project, but only if you need more subwoofage. A second sub is certainly beneficial, but it helps to know what you don't like about your set-up. Or do you just have the itch to build something? If so, you'll find a lot of understanding here.
If your current sub is "pretty large" are you looking smaller or similar size?
What degree of LF extension do you want? HT needs an octave or two more than music, depending on taste, and horns, while good designs, are not practical if designed to deliver extremes of LF extension.
How loud do you listen? Sealed designs have tremendous distortion if pushed to high SPL, while horns are extremely clean at the same sound level.
This is reality - Hoffman's Iron Law. Size, Extension, Sensitivity, pick two.
- small with extension: sealed, low sensitivity
- small with sensitivity: use a pro-sound driver, won't have the Xmax to dig low bass
- large with extension: ported, extends output, but does nothing to increase output above tune
- large with sensitivity: horn, length limits LF extension, but with broadband increase in output.
Lots of variations with driver characteristics, but the law stands; pick two and live with the third. Welcome to Trade-off-land!