Differences Between Folded Horn Speakers and Transmission Line Speakers


I've been looking at various DIY speaker builds and came across a folder horn speaker and I've also seen transmission line speakers. I've tried to google the differences in the two, as they look similar, but I suspect that there are differences. The only visual difference that I've noticed (I've only seen one folded horn, so the comparison pool is very small) is that the folded horn seem to have a larger opening than the transmission line speakers. Maybe it's just the one speaker that I saw, so I don't know that would always be the case. I'm hoping someone on the forum is much more knowledgeable about these things than I am. 

mcraghead

TLs tend to sound better than ports, but the bass is still not on par with the best sealed enclosures IMO. What we are discussing is tighter bass, not so much lower bass. Ports and some TLs have the tendency to sound as if they have lower bass, but the bass present can be a bit confused and tubby. That ported sound is especially apparent in smaller ported speakers. I dont like it as a whole.

@erik_squires i recently started spending time at diyaudio.com. However, it's been trying to learn the electronics side of audio and not on the speaker side of things. 

Hearing the TLS80 transmission line speakers from IMF are what started me on my audiophile journey.  Hearing Klipschorns made want to leave the room.

OP:  go over to the Multi-way speaker forum and you'll find lots of helpful and knowledgeable people with very strong opinions to share. :)