When combing a site, which driver specs give a quick glance at a driver thats good in a tapped horn?
High Bl, large Xmax and Xlim, Fs at or a bit above design F3 point.
Stiff (generally heavy) cones help lower distortion.
Is there a qts range thats will ballpark an acceptable design?
Or is the joy in noodling in hornresp?
Or is the joy in noodling in hornresp?
Noodling in Hornresp will eliminate speakers that don't work.
It won't tell you about distortion, stay away from light cones if you don't like distortion at high drive levels.
I tried three speaker types (pair of Eminence Lab 12, an Eminence 4015LF, and a B&C18SW115-4) in the same Keystone TH, ranging from .3 QTS to .5 QTS, they all worked OK, though the B&C was the best by far in terms of output, low distortion and sound quality.
Some designs don't work so well with differing speakers, the Lab 12 would be terrible in the Othhorn, for instance, while the B&C18SW115 would work well.
There seems to be a lot of relatively inexpensive car subs that work well in TH.
TH, like BR, come in all shapes, sizes and F3, there is a fairly wide range of what will work in them.
It's just like with any other speaker alignment, the lower its Qts, the wider its usable gain BW and vice versa, with all the horn design caveats it implies.
GM
Does VAS play an important role? I noticed that all the drivers that seem suitable for various PA TH projects on this forum usually have a low VAS when compared with other drivers of the same size.
col.
col.
Depends on how small you want to make it with the understanding that the compression ratio increases, just like with any vented alignment, so for prosound TH apps, it's probably not a good idea to have a really stiff suspension like some car audio 'subs' have.
GM
GM
Merge etc
@ Etocynned
Hi, i started a thread on the same topic here http://www.diyaudio.com/forums/subwoofers/199214-th-criteria.html which you might like to take a look at.
Also maybe Mods could possibly consider merging these two threads, in order to keep all the info etc in one convenient location for everyone to peruse ? 🙂
@ Etocynned
Hi, i started a thread on the same topic here http://www.diyaudio.com/forums/subwoofers/199214-th-criteria.html which you might like to take a look at.
Also maybe Mods could possibly consider merging these two threads, in order to keep all the info etc in one convenient location for everyone to peruse ? 🙂
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