New JBL Summit Speakers

[Bugal1998]

Yes. It is a wideband waveguided hornloaded dual diaphragm coaxial compression driver.

Plus a woofer.

The D2 diaphrams play the exact same signal, so I'm not sure we should call it coaxial any more than we would say two woofers playing the same signal crossed over to a tweeter makes a three way. However, D2 is point source over a very wide frequency range. Maybe even better than coaxial in some ways because no crossover processing is needed in the HF driver?

 

[Flaesh]

Could the M2 driver be considered coaxial?

I think it's completely unnecessary.
Although a subwoofer with two opposite drivers is geometrically coaxial))

 

[thewas]

First third party measurements of the Makalu:

Source and more: https://audio.com.pl/testy/stereo/kolumny-glosnikowe/4233-jbl-makalu

 

[kyuu]

That's... not great. Why were they not able to avoid the big suckout at 800Hz on a 3-way speaker? Crossover from the tweeter to the midrange is at 1100Hz, seems like that's either too high for the mid or too low for the tweeter? Or both?

 

[JRR]

That's... not great. Why were they not able to avoid the big suckout at 800Hz on a 3-way speaker? Crossover from the tweeter to the midrange is at 1100Hz, seems like that's either too high for the mid or too low for the tweeter? Or both?

Should be neither. What on earth!?!

 

[HeadDoc12]

This looks like a money grab. JBL knows that the highest profit margins are with ultra-expensive speakers that look like furniture. They expect the potential customer for this line to be comparing them to Sonus Faber or B & W, as opposed to say Magico, so they voiced them not to sound bland, dry, cold, or any other adjectives people assign to neutral speakers after listening to over-priced garbage with a huge midrange dip. Disappointing...

 

[JRR]

In fairness, can you blame them? Do you thinkus ASR types are a lucrative market.

Get a pair of M2’s veneered professionally.

 

[Mr. Widget]

This looks like a money grab. JBL knows that the highest profit margins are with ultra-expensive speakers that look like furniture. They expect the potential customer for this line to be comparing them to Sonus Faber or B & W, as opposed to say Magico, so they voiced them not to sound bland, dry, cold, or any other adjectives people assign to neutral speakers after listening to over-priced garbage with a huge midrange dip. Disappointing...

I actually find absolute neutral a bit lackluster. After room correcting my D&D 8c speakers I took advantage of the voicing feature and massaged the curve a bit (just a bit). Now they sound perfect for the only person that matters.

I think these JBLs are the product of a marketing campaign and not a product derived from new revelations or from the decades of Harman's impressive engineering work.

 

[Duke]

I think these JBLs are the product of a marketing campaign and not a product derived from new revelations or from the decades of Harman's impressive engineering work.

The incorporation of a midrange driver didn't make sense to me, coming from an M2/4367-friendly paradigm (with its emphasis on radiation pattern control). On the other hand a 15" midwoofer probably makes no sense to people coming from more of a "conventional-speaker-centric" paradigm. And that's by far the larger segment of the audiophile market.

So I think you're right; I think the creation of the Summit line was a marketing-department decision rather than an engineering-department decision.

The dip shown in @thewas's post number 83 above looks to me like the sort of thing that could occur in the crossover region if the polarity of one of the drivers was incorrect. So I'd wait for a "second opinion" to come along just in case.

 

[Digital_Thor]

View attachment 452090
View attachment 452091

JBL Pro M2 en version "rococo sauvage à moumoute": l'enceinte monitor High End façon Trump Mansion

Des poils, du bois exotique... les fans du copilote Wookie de Han Solo se reconnaîtront peut-être dans cette version customisée de l'enceinte monitor Pro JBL M2. Mais on la verrait bien aussi dans la décoration des appartements de la Trump Tower de l’actuel président américain...

www.on-mag.fr

Maybe a bit harsh, but the color make it look like an ****