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Transmission line speakers!

Hi group,

I just pulled the trigger on a mint pair of Falcon speakers. They are a transmission line design. I don’t see many speakers using transmission line. Does anyone here have any experience pro or con with this type of design? BTW, I have always liked sealed type speakers over ported speakers!

Thanks much!

128x128yogiboy
aolmrd1241
1,023 posts
 

My Acoustic Zen Crescendo II’s are a transmission line design...Best sounding loudspeakers I have ever heard or owned.

 

Nice demo!

 

knotscott
832 posts
 

Khorn. A transmission line with a fold or two. Just my interpretation, as I am no speaker designer. PWK could have ported it, but would not get the efficiency of a true horn, nor the quality of output. Transmission loaded, ime, always had folds within the cabinets, otherwise, it was simply ported.

The K-Horn does have some folds, but is not functioning as a true 1/4 wave T-Line. It’s more like a wave guide or horn to help amplify certain ranges of the bass for efficiency gains, as opposed to absorbing resonance and allowing deeper bass from a given driver. Very different principles with different purpose and execution of the folds.

 

 

 

russ69's avatar
russ69
3,360 posts
 

...as opposed to absorbing resonance and allowing deeper bass from a given driver. 

Bingo.

tomic601's avatar
tomic601
12,869 posts
 

@roxy54  thanks, i lifted it from Wiki. i should have been more clear about that. Best to you !

Jim

mid-fi-crisis
71 posts
 

My mains speakers are some transmission line IMF RSPM mark IV. 

I bought them in great condition from a junk shop a year or so ago.

My magnepan .7's and Dalhquist dqm9 have been pushed into a corner ever since. 

The IMF's are huge and heavy but are so easy on the ear. 

I am sure that design difficulty, cost of manufacture and shipping, and shear size are the reasons speaker like this became rarities.

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