Opinions on Full-Range/single driver speakers

Thanks for clarifying; I mis-took the phrase "that is not the type of information I am seeking" to be referring to our favorite speakers.

My favorite fullrange driver is the 8" Supravox field-coil unit. One feature is that you can fine-tune the magnet strength to your specific application (lower voltage to the electromagnet = lower efficiency, more bass, and less highs; and vice versa). Some of the best if not the best imaging I've ever heard was from a pair of these speakers in the factory recommended folded reverse-taper line, and they weren't a one-trick pony either; timbre was beautiful and coherence predictably superb.

Now I have not heard the new Seas alnico-magnet fullrange drivers, but a manufacturer I respect a great deal, John Kalinowski, is very impressed with it.

I worked with the Jordans you're contemplating but in the end concluded I was more likely to get the results I wanted from a two-way system.

Wide-baffle vs narrow baffle is a tradeoff of disappearing act vs tonal balance. I lean towards wide-baffle speakers, but my priorities may be different from yours.

Duke

"Buy my favorite speakers - you will be happy" , he said as he unruffled his feathers.

My experience is with Fostex and Lowther drivers both of which had magical qualities with vocals and midrange but I never could get around the lack of performance at frequency extremes. Bass never really sounded taut, low and clean while highs could be missed if you were not positioned just so. Highs also lacked that airy shimmer great tweeters produce. I moved on after a time and have not had the urge to try again.

My .02 + feathers.

Decware has some interesting designs and drivers you might find interesting

As mentioned above, say goodbye to the extreme frequencies. I also found that they fall apart during fast music. Also as mentioned above, you should check out Tannoy.

I really like the MLTLs(mass loaded transmission line)
Single drivers. On top of that the Baffle step correction
circuit used in the Brine's single drivers makes a positive
difference! It gives the speaker a very smooth character, no
shout or honkiness.

I've owned a pair of GMA's and loved them. I know of one
other Audiogon member who moved from GMA's to Brine's Single
drivers as well. I still think the GMA's are some of the
most well designed speakers out there!

If you like a lot of hi end shimmer, you'll need to add a
tweeter depending on the driver and the age of your ears. As
far as bass goes though,
not all single driver speakers are designed equally. My FTA-
2000s with one 8 inch go into the mid 20 hz range with very
tight and tuneful bass. Once you hear transmission line bass
done right you'll understand.

As mentioned above most won't play at extreme high SPLs. if
you like your music loud. I mean above 100dB or so then look
else where.

I would advise you to listen to as many variations as you
can find in your area, before you drop any funds in the
project. That way you'll know for sure that a single driver
will fit your needs.