A friend told me JBL DD67000 is actually very bad speaker, is it true?

Doodle,
Interesting for sure. JBL’s lack of US marketing is interesting to say the least but there seems to be consistently good impressions/reviews/measurements of their latest offerings (specifically the 4367 and M2).

I have thought about buying the 4367 from music direct and just taking the gamble (low risk with 60 day trial) but they push my budget so just not sure yet. I have not heard a horn that I really liked (I like some aspects) but I still want to try lol.

I’ve been a fan of JBLs since I bought my first pair (L-150) in ‘75 or ‘76.  I’ve owned a lot of cone drivers over the years but almost all of my large format speakers have used horns.  I did have a pair of Bozak Concert Grands, B-110 IIRC, but they were a let-down.  After reading all the hype about Kevin Voeck’s work, I acquired a pair of Salon 2s, and they’re still set up in a second system, just to compare a great all cone design to the JBLs.  At the end of the day, they just can’t even get close to the JBLs.  I would encourage you to audition the M2.

Doodle,

I also like the Salons and have come to the same place as you on a cheaper scale.
 
After listening to a bunch of different stuff I have come to understand that I am super picky about frequency response (flat) and impulse response (impact or transients). Which has lead me to the Revel 328be/228be or the JBL 4367 (M2s are out of my price range with the amps needed). 


I think I would like to try the 4367 but the deals might just be too good on the Revels not to try them. Several pairs around at 60% retail and at 100% retail I feel they are still a good value. 


I will high pass any speaker I buy with subs at 60hz or so. 


I feel that revel is very good technically but lacks a bit of dynamics. Many highend speakers have the same issue imo. I feel that the 328be was a bit more dynamic than the salon 2 (I heard them in the same room) but it could be psychoacoustic as I have head a few people comment they failed to tell them apart in a blind test. It also might be real as the 328be is more efficient and let the amp drive them better (MC462 for the demo, also an amp I own). 



I have read the thread about Salon/M2 double blind test done at harman which was very interesting to say the least. Which peak my interest on JBL. I demoed all the Klipsch line as the dealer is 10 minutes alway. They did not do anything for me. I disliked the Cornwall IV enough to have pause about buying the JBL 4367. Not that they could/should sound anything alike but the form factor is pretty similar and I have very little horn experience. 



Anyway I like hearing about the big JBLs. They always seem exotic but still in reach. 

If not the DD67000's - which are really rather much more sonically capable and fleshed out than their smaller siblings, incl. the M2's to my ears - I'd go with actively driven Meyer Sound pro series speakers (Acheron/Studio) and add some big, high efficiency subs. 

As a general observation: midrange horn size matters, indeed the bigger they are the less they sound like horns. Modern horn profiles only do so much if they're size restricted (most are), why I'd rather have an older profile horn that maintains directivity control in its entire operating range to make for better coupling with the driver section below.  

And let's not forget the importance of sheer displacement below the midrange; dual 15" drivers (or a single or two horn-loaded) do for the vital frequency range they cover what singles can't equal, and so isn't about magic dust or other obscure recipe to accomplish. And when they're high-passed to be relieved of LF-duties and sub-augmented here it only makes them sound better (while adding further headroom) in their upper frequency range.  

No, they are very good speakers. Go listen and compare.