Is the 2.5 way speaker the ideal home speaker?


Time for what I hope is another fun thread. 

One type of speaker which is actually pretty common but which gets little press / attention here on audiogon is the 2.5 way. 

A 2.5 way speaker is almost a 3-way, but it isn't. It is a speaker with 3 drivers, but instead of a tweeter, midrange and woofer (TMW) it lacks a true midrange. The "midrange" is really a mid-woofer, that shares bass duties with the woofer. Often these two drivers are identical, though in the Focal Profile 918 the midwoofer and woofer were actually different drivers with the same nominal diameter (6"). 

The Monitor Audio 200 is a current example of the concept, but I am sure there are many others. It's also quite popular in kit form. One of the most high-end kits I know of is the Ophelia based on a ScanSpeak Be tweeter and 6" Revelator mid-woofers. I haven't heard them, but I am in eternal love with those mid-woofers. I believe the original plans come from the German speaker building magazine Klan Ton. 

However many other kits are also available

But regardless of kit, or store purchased, are you a 2.5 way fan? Why or why not? 

Best,


Erik 
erik_squires

Showing 3 responses by mmmikeymike

So... at the risk of complicating things further and having my head handed to me, can I throw another newbie question into the mix?  
If I used a 2.5way + a sub w a high-pass filter ,removing everything below maybe 80hz that goes to the mains, would that help not only dig deeper (since the 2 mains woofs are only 5.25"-ers) but also clean up the mid-bass, since that driver would be relieved of the larger excursions needed to produce the lowest bass and could (just like in a 2-way w that sub) create cleaner/more "present" mids? That would keep the cabinet relatively small/narrow compared to a big 3-way, even if the sub takes up room, (And in my case it would keep upgrade cost down, since I already own a sub w a variable high-pass filter.)  The specific 2.5 I'm looking at is the Elac Carina FS247.4 if anyone has direct knowledge of it.) Thanks for your thoughts. 

Thanks Eric, and thanks for this thread - I'm learning (a lot) along w you here! The Carinas don't come w fitted plugs, and I've never actually plugged ports before. Any suggestions on what material to use, since I'll be making them myself as far as I can see.

@erik_squires Thanks for the suggestion, especially since like most men, I have a small pile of unmatched socks that lost their mates somewhere in the laundry process and I keep thinking the other half will reappear someday. If I like the outcome, once my Carinas arrive and I play w them a bit, I'll probably try to fashion something more permanent, since I picture eventually trying to fish a balled-up sock out of the speaker guts without damaging anything -that's just how my universe works LOL. Will do some digging to see if cork or foam or what might work for a custom fit.