JBL 4367 in the house

[bryan0101]

Been itching to setup the 4367 in the house, but with the delay in getting the cutting boards to setup the right size platform, I just couldn't wait and put it near field right in front of everything to try out.
Behind it are the sopra n2 and klipsch forte iv, both are unbelievable high achiever in its own right.
Imaging JBL is winner no contest due to the wide freq coverage of the horn.
But because it only has ~100hrs, the sound is abit shrill and "hard", comparing to the forte iv more mellow, approachable smooth sound.
All push by mono AHB2. but I have a feeling over time this would surely be a keeper.

 

[Purité Audio]

Hmm I don’t expect the sound to change after a few minutes, let alone a hundred hours, perhaps you should measure with REW and see exactly what you are hearing.
Keith

 

[Duke]

... the sound is abit shrill and "hard"...

You might try listening from fairly far off-axis. The direct sound's very top end won't be as hot.

Perhaps toe-in the 4367's at about 45 degrees, such that the axes cross-cross somewhat in front of the center of the listening area. This may also give you a fairly wide listening area due to time/intensity trading.

I am not certain this will work well with the 4367's but you can try it for free.

 

[BrokenEnglishGuy]

Been itching to setup the 4367 in the house, but with the delay in getting the cutting boards to setup the right size platform, I just couldn't wait and put it near field right in front of everything to try out.
Behind it are the sopra n2 and klipsch forte iv, both are unbelievable high achiever in its own right.
Imaging JBL is winner no contest due to the wide freq coverage of the horn.
But because it only has ~100hrs, the sound is abit shrill and "hard", comparing to the forte iv more mellow, approachable smooth sound.
All push by mono AHB2. but I have a feeling over time this would surely be a keeper.



View attachment 292500

maybe if it sounds harsh/hard/etc, you got some cancelations in bass region

 

[bryan0101]

Well, this is just a temp spot. Once the cutting board is here, the platform for it to sit 6 inches up would be Bamboo->granite->Bamboo.
If any expert here have a better (AND more cost effective) suggestion for a solid platform to lift this fatboy up 6-8 inches, please let me know!

 

[Chrispy]

Well, this is just a temp spot. Once the cutting board is here, the platform for it to sit 6 inches up would be Bamboo->granite->Bamboo.
If any expert here have a better (AND more cost effective) suggestion for a solid platform to lift this fatboy up 6-8 inches, please let me know!

I built some risers to height I wanted out of some leftover bb plywood I had on hand...filled with sand but don't think it made any difference except weight...

You should break-in to the speakers soon enough....

 

[Purité Audio]

Well, this is just a temp spot. Once the cutting board is here, the platform for it to sit 6 inches up would be Bamboo->granite->Bamboo.
If any expert here have a better (AND more cost effective) suggestion for a solid platform to lift this fatboy up 6-8 inches, please let me know!

Can’t you just tilt them back slightly, again I wouldn’t have thought 6” would make the slightest difference to the vertical dispersion.
Keith

 

[bryan0101]

Can’t you just tilt them back slightly, again I wouldn’t have thought 6” would make the slightest difference to the vertical dispersion.
Keith

I would also need to experiment crossing them at different angles and stuff. Having them right at ear levels, and with felt pads on the platform can give me alot of freedom to position them.
Also from using the forte iv, I did notice the tone was different between ear lvl and tilting upward (which was my initial setup), probably because my room is not big (~8ft spks to ears)

 

[MAB]

I would also need to experiment crossing them at different angles and stuff. Having them right at ear levels, and with felt pads on the platform can give me alot of freedom to position them.
Also from using the forte iv, I did notice the tone was different between ear lvl and tilting upward (which was my initial setup), probably because my room is not big (~8ft spks to ears)

The speakers you have will all have significant tonality changes when you tilt them. It is a property.

Your speakers will not change sound with breakin. They will change with placement. Your perception of them may change though.

Congratulations, they are great speakers! You should go cheap on the stands until you know what room placement you like.

 

[Jon AA]

Nice! Are you using subs? Do you have EQ? If the answers are "no and yes," feel free to boost the piss out of the bass down to 35-40 Hz to follow your preferred in-room response/bass boost. That'll improve the sound substantially.

 

[bryan0101]

Nice! Are you using subs? Do you have EQ? If the answers are "no and yes," feel free to boost the piss out of the bass down to 35-40 Hz to follow your preferred in-room response/bass boost. That'll improve the sound substantially.

I have dual rythmik F12G, cross at 40 for the forte, so we'll see how to get them play together. But initial impression JBL goes lower than forte for sure.

 

[Chrispy]

I have dual rythmik F12G, cross at 40 for the forte, so we'll see how to get them play together. But initial impression JBL goes lower than forte for sure.

Actual cross or just lpf on sub? Seems pretty low xover in any case....

 

[bryan0101]

Actual cross or just lpf on sub? Seems pretty low xover in any case....

lpf on subs. forte is actually pretty sweet already around the bass region. I thought passive woofer could never be good, well this is actually quite decent alternative to ports.

 

[AdamG]

Just thought I would drop some additional information about these incredible speakers here for your perusing pleasure:

Type2-way Floorstanding Loudspeaker
Low-Frequency Transducer15” (380mm) 2216Nd-
1 Dual Differential Drive® wooferMid/High Frequency Transducer3” (75mm) D2430K dual compression
Maximum Recommended Amplifier Power300 watts RMS
Frequency Response (-6DB)30 Hz – 40 kHz
Sensitivity (2.83V@1M)94dB
Nominal Impedance6 Ohm
Crossover Frequencies700 Hz
Enclosure TypeBass-reflex via Dual Front-firing Ports
Inputs Dual Gold-plated Five-way Binding Posts
Dimensions (H X W X D)37-1/16” x 22-1/16” x 16-3/4” (941mm x 560mm x 425mm)
Weight119 lb (54kg)

 

[Chrispy]

lpf on subs. forte is actually pretty sweet already around the bass region. I thought passive woofer could never be good, well this is actually quite decent alternative to ports.

Depends on a few things, I just generally prefer better bass management. Not sure what you mean by alternative to ports, tho.

 

[Tom C]

Congratulations. Those are excellent speakers that will bring you many hours of enjoyment.
It’s curious to me that the owners manual recommends placing the tweeters at ear height. I would have expected the acoustic axis to be near the bottom of the horn. They do provide some controls for the treble level, so you can use those to cut the treble some, if you find them too hot.
Interesting that the owner manual describes a several weeks break-in period for these speakers, during which time the balance between the drivers changes. That sounds more like something that came out of the marketing department, rather than the engineering department.

 

[bryan0101]

You might try listening from fairly far off-axis. The direct sound's very top end won't be as hot.

Perhaps toe-in the 4367's at about 45 degrees, such that the axes cross-cross somewhat in front of the center of the listening area. This may also give you a fairly wide listening area due to time/intensity trading.

I am not certain this will work well with the 4367's but you can try it for free.

Just finished the platform setup, tried both side of off axis (before and after my listening position). In front with extreme angle works quite well. I tried that before with focal, didn't work, blurry imaging. With horn is fantastic.

 

[bryan0101]

 

[Duke]

Just finished the platform setup, tried both side of off axis (before and after my listening position). In front with extreme angle works quite well. I tried that before with focal, didn't work, blurry imaging. With horn is fantastic.

Glad to hear it!!

Credit to Earl Geddes for teaching me that technique. As you found out, it works and works well with some speakers - those with a certain type of radiation pattern - and not with others.

Don't be surprised if you have well-meaning audiophile buddies who take one look and offer to "fix" your speaker set-up for you.

 

[MAB]

View attachment 292603

That looks great, I love those 4367. I really like your solution to make it easy to move. WAY better than mine, I'm using a combination of milk crates, step-stools, wood blocks, and extra speaker cabinets to get the height in the ballpark:

I was so blown away the first time I heard the 4367, I got the itch to build the closest thing possible which is the M2 since the parts are available and the DSP crossover is easy...
I am trying to extend to an 'M3', which is the reason for the midrange cabinets. So far, the 2-way sounds great. 3-way not so much...