JBL PROJECT K2 S9900

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ThomasOK
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Re: JBL PROJECT K2 S9900

Post by ThomasOK »

I haven't heard of any changes coming to existing product lines right away. I think the question is more how it will pan out long term.
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FairPlayMotty
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Re: JBL PROJECT K2 S9900

Post by FairPlayMotty »

The designer of the JBL 3677, Greg Timbers did an interview here:

https://positive-feedback.com/interview ... mbers-jbl/

A review of the Everest speakers he had in his own system made interesting reading, eye watering cost:

https://www.hifinews.com/content/jbl-pr ... C2%A370000
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Re: JBL PROJECT K2 S9900

Post by matthias »

FairPlayMotty wrote: 2021-08-31 01:59 The designer of the JBL 3677, Greg Timbers did an interview here:
https://positive-feedback.com/interview ... mbers-jbl/
Very interesting, thanks for sharing.

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Re: JBL PROJECT K2 S9900

Post by snatex »

ThomasOK wrote: 2017-03-28 19:08
But, as it often does, one product leads to another. So here I present the JBL Synthesis 4367.

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In many ways I find these even more interesting. This is because they are meant to be viewed as the more compact home and pro version of the M2. As you can see in the photos they have a wood veneer finish (available in Walnut or black painted Walnut) and are quite a bit shorter than the M2s (37" tall vs 49.5"). However, they are about 2" wider and deeper and actually slightly heavier so internal volume may not be that much different. But they are still two way speakers with a 15" woofer and a compression driver, which cross over here at 700Hz. The similarities are deeeper than that as they use the same compression driver and a newly updated version of the same woofer used in the M2. The new woofer has been improved slightly to give a touch cleaner and more extended bass. As is obvious the 4367 also has a quite different horn from the M2, more like the one on the 3677, which likely has more limited vertical dispersion that some designers favor. The quoted frequency response is 30Hz to 40kHz, so still a very wide range for a two way system, with a little better efficiency of 94dB. These are passive speakers with separate crossover boards for the bass and highs and separate input terminals with jumpers. They also are a bit less expensive at $15,000 a pair although it is pretty easy to find a significant discount on that.

So it appears that JBL is certainly into the 15", 2 way, horn tweeter design for some of its new top designs. While they continue on with three ways, featuring a super tweeter for the K2 and Everest models, still with 15" woofers (2 per speaker in the case of the Everest). It is interesting that the predecessor of the 4367, the 4365, was also a three way with a super tweeter built into the top of the tweeter/upper mid horn. It seems like JBL has been working more towards making hf drivers that can extend all the way up without a super tweeter allowing for simpler crossovers and speakers.

So anybody want to go out and get a pair of 4367s to see what a souped up 3677 sounds like?
Has anyone here taken Thomas's challenge and listened to any of the JBL Synthesis speakers?

The recently discontinued 4306 looks like an interesting value at $1500 retail. It is a 2 way with a horn tweeter, 8" pulp woofer and a 50hz-40khz frequency response. Crossover is at 3.2khz. Anyone heard it?

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https://www.jblsynthesis.com/products/l ... 4306-.html

I've also heard some positive feedback on JBL's new HDI series - HDI 1600, HDI 3600 and HDI 3800. They have a variation of the D2 compression driver from the M2. Anyone heard these?

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fredrik
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Re: JBL PROJECT K2 S9900

Post by fredrik »

The sub looks like a Klimax 345A :)
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