Haha, just read my post with the portuguese translation and a few words were odd. Fun to read.
Anyway, hopefully someone can give me some advice.

Thanks Lon.
I can see you more often in the forum then Steve. I thought he is the owner/chief designer, but i find it that he doesn't frequent the board much and some of the problems/question posted aren't even answered from him.
I find that to be odd. And it doesn't look like he is helping much for his customer. Strange.

Ricardojoa,

I have HR-ONEs, Bob Ziegler's design (ZYGI the Decware speaker builder) which use a radial driver, a forward firing driver and a tweeter. Also MG944s so I can't help you with direct experience.

Finally for this sort of question, if it is not answered here, you would find talking to Steve the best method if this is possible for you. He has listened to both speakers a lot, his ears are very well tuned, and my experience with him says that he very much wants you to help you have a great musical experience from the gear.

An obvious difference from the descriptions is that the radial is very well suited for untreated spaces, and the HDT is extremely revealing and fast, showing all the nuance and details of the gear going into it. Like Steve said, he uses them to more quickly hear issues while designing amps.

From my experience of the radial on my HRs, compared to the front firing MGs, the radial has a very seductive sound that is atmospheric in a sort of indescribable way, but also fast and detailed.

Do you have a dedicated room, or one where you can do room treatment? This might be the first question to resolve.

Like Lon said, all the speakers are going to be surprisingly good, so you can't go far wrong.

Ricardojoa,

In Steve's defense here and he doesn't really need to be defended....While at Decfest this year I was busting him about his e-mail responses to me, sometimes being just one word. We went up to his office and he showed me his emails from just the two days during Decfest, which he hadn't responded to, there was over 200 emails. Some spam for sure but mostly e-mails that needed his attention.

Then, during the day, he is pretty much on the phone most of the day talking with customers, after the shop closes down, he then gets to work building the amps he builds, sometimes working until midnight, so you see there isn't much time left in a day to scan over the forum and find questions for him....I once suggested to him to have a separate forum heading called "Questions for Steve" which may help as he wouldn't have to read the entire forum each day looking for questions for him and it may let people read his responses which may also answer their question.

Trying to answer your direct question....It would depend on the size of your room. Both HDT's need a larger room where as the ERR's can work extremely well in a smaller room. I find in my room, If I was considering the HDT MKII's I would go with the DM945's instead. My room is 12" X 16".

In Steve listening room, which is  16 by 20 something, the HDT and HDT-MKII work well and sound amazing but between the two it would go back to personal taste. The MK-II being a bit more laid back with a warm sweet sound, where as the HDT a little more in your face detail. That comes with a bit more showing up problems up stream, whether its hardware or software. Bad recording will sound bad with the HDT's where as the MK-II's can be completely listenable with a crappy recording. The ERR's would be somewhere in between.

If we can use light as an analogy here, think of the ERR as being a torch light facing the ceiling, spreading its light evenly around the room.  Think of the HDT-MKII as being a flood light shining in your face and the HDT being a spot light. If you have a larger room and have to sit far field then the MK-II might be a better choice, over the ERR's. If you have a large room that a lot of passive listening is done, the ERR's can't be beat for passive listening in a large room.  

I've heard all the speakers, but I fail at telling people what a particular amp sounds like with said speaker, in that department I'm limited on what I have on hand.

Lon, Will...I think you two coming from different speakers makes the difference between both of your takes on the HR-Ones.

 Will is coming from a forward firing conventional speaker, and is getting a bit of something new with the radial/omni effect.

Lon, you are coming from an almost completely omni speaker and are getting a bit of a conventional forward firing speaker. You're almost going backwards away from the true omni effect which you love so much.

I hope this helps....
Zygi

Lon,

It sort of all goes to which looks better in print....HR-1 vs HR-One vs HR-ONE. They are all saying the same thing I guess, but I'm leaning toward the HR-One at the moment.

Or is it when I get lazy I use HR-1 ????

Another thought crossed my mind in regards to ERR's vs HDT-MKII is cost and shipping overseas. ERR's are cheaper and shipping overseas is about half the cost of shipping HDT-MKII's if that has any influence on ones dissuasion.

Thanks for clearing up the nomenclature!

Wow, many thanks to Lon, Will and Zygi for taking time to describe Steve's creations!!
Anyway my room is small and is multifunction. The ERR seems to be a good candidate, but im afraid of the less specific imaging they provide. The HR1 seems like an even better candidate but im afraid Steve no longer make it, is that right??
Well, ill keep doing my research on Decware. 

Ha Ha!  Sorry, I learned my portuguese in S. Paulo, and it's been a while now.  Welcome to the forum.

Ricardojoa,

I think the advantage of the ERR is that it images well and sounds great in more rooms, requiring less, or no treatment to get good imaging! With proper placement and with good gear in front of it, you will very likely get great imaging from the ERR.

Can't wait too see the hr1 page up, at least to know the construction and design.

Donnie,

You would have to paint them yourself so they would match the "Infamous RED TORII" I don't think you could get that color just anywhere.