What does one purchase after owning horns?

Consider DIY thats what I did after owning Duo 2.2 built my own horns I admit it was easy for me since its what I do. There are many DIY forums and cabinet plans etc. Find a local cabinet maker if you can not build yourself. Could look about for others projects. For me full horn loading is far better than using ported or sealed bass cabinets but its not cheap or small.

Shadorne you do not mention SPL level for conventional design distort much when near max SPL. Far more than a horn loaded design. I think maybe your looking for anything you can thats - about horn designs without understanding. A horn tweeter solves the distortion at higher levels as does not running loudspeaker into max SPL and using proper horn length flare. So horns are producing less distortion than conventional designs at most any SPL level. But if I knew little about horns or loudspeakers I would see the 20-30% distortion and run for the hills. So if you used proper horn flare and length didn't run at max SPL used a tweeters means no 20-30% distortion. Many conventional loudspeaker designs are producing 9-10% in low bass all the time no mater SPL. This is not a issue for horn loaded bass.

radiation pattern control lack of distortion and efficiency

Horns do not all need massive space to sound there best. If properly designed large horns will work fine in near field etc. But most are not designed well and need extra listening distance to compensate for poor integration excessive colorations and poor time alignments. Since many are DIY and not properly designed listening space becomes more of an issue. You also have the market demanding small loudspeakers so many commercial horns do not offer proper mid bass or bass systems. So much of the info on horns comes from DIY types who insist on massive listening distance since in there experience its needed. Or from owners of undersized commercial offerings. Who complain of mismatched bass midbass etc. No wonder horns get such a bad reputation in forum.

For a given size enclosure the basshorn will have lower distortion and better damping. Plus far less thermo compression in horn systems. A big positive for horn loaded designs. Controlled radiation pattern means better image with less room interference. I would say another benefit to large horns is they fill room with even SPL. With dynamic and other designs when you walk towards loudspeakers SPL greatly increases with horns room is filled with even SPL so you can stand next to a horn without the great increase in level, this to is a benefit of controlled radiation.

Duke why the midbass horn is so important to a proper horn loaded design. And probably the hardest of all to get right.

While I respect Bill hes talented and a wonderful human he didn't invent the conical horn heck Edison was using them in 1890

Atmasphere you said{250 watts to produce the same output}. Not true you forget the -6-7db of thermo compression that the dynamic would experience. So its not possible for a dome thats not horn loaded to equal output of a horn tweeter.It will melt the voice coil glue. Also most domes are .65% efficient many horns are 6-7% so with a dynamic dome you have 99% of power waisted as heat. Thermo compression is the 800 pound gorilla in the room that dynamic owners do not acknowledge.

And Unsound I'm sure a thiel 3.5 is so much better than a classic audio reproduction field coil horn system. My pair of 3.5 sure wasn't. And Who on earth listens to horns in there home at 120db? That comment just shows your unjustified bias against horns you have no experience with them just lots of bias and venom. You and Weseixas are just trolls with no experience with any of what you post on a true definition of troll. One who enters threads just to annoys others never offers anything of use doesn't have any knowledge about subject of thread. Thats both of you and you know it.

http://sound.westhost.com/articles/pwr-vs-eff.htm

I use a med efficient ribbon hybrid loudspeaker in one of my systems, enjoyable has much detail can listen for long hours without fatigue like my main horn system. Ribbons today are now tube friendly and more efficient than dynamics that are not horn loaded. So can match the highly efficient woofers that are available in legion today. Many company's offering med eff. hybrid ribbon designs. For me thats what I enjoy when not using my horn systems. And stays in topic. But I do also offer such just to disclose. Most available are around 95db designs or about %5 efficient 95% waisted as heat. Compared to many dynamics 88db 4 ohm at .60% over 99% of power waisted as heat. This can mater sonically since this heat is in amp and voice coils thus thermo compression is the result. There is also a end cost to owners more power used on system sometimes $100s more a year. More wear of mechanical parts due to thermo stress. More heat in home environment that HVAC must handle again more cost. Plus the cost to nature if thats a issue for you. There are other benefits if one looks for over 91db 8 ohm designs.

More music, a comfy chair, good beverages.