In one of the studios there was a speaker system, JBL something, two 15″ bass drivers, probably one . 4th midrange driver: JBL H Go to measurements. The H are not aquaplased as the H’s. How are their sonic character? I’ ve been told that JBL would have to come up with a four-inch. I’ve got a couple of JBL h drivers that I’d like to use in mid range horns. They would slot in between a JBL h L/F and a 1′ HF CD/horn.
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jbll To time-align – or not time-align Do we need to time-align the midrange and horn with steep slopes and a point of crossover around 1. Back to home page Return to top. I’d rather stick to having one driver handle all of the midrange, Hz, or at least as much as possible, hence a point of crossover at Hz, despite the extra cost in good uFs.
The designers consider the AL and its derivatives to be light years better than their fifteen-inch predecessors, exhibiting exceptional resolution through the midrange and thus negating the need for a separate midrange transducer. If you want to use an attenuator for the horn, increase R13 to Ohm and insert the attenuator like this: Fortunately I have frd and zrd files from such tweeter and from modeling I can see they had a 3rd order filter providing a 4th order roll-off at 8 kHz, exactly what they specify.
Please also read this: You can also make one vertical rectangular port, Heck, some projects with even the finest drivers never see the light of day because diy people could not make them work.: This jvl has ended.
Now, a speaker this 2123 has its own problems, size and weight! Bass section 8 Ohm, minimum 6. Report item – opens in a new window or tab.
Back then the A and the H were regarded as extended LF drivers and its logical that jnl dedicated midrange is required. Isn’t it a good thing to have only one driver very suitable for the task, to cover a very important frequency band where human ears are extremely sensitivedespite the fact that it adds complexity to network design etc?
This even from speakers twice the building price. Some will say yes, some may say it jbbl depends. We have like 10 minutes before the glue starts settling. Give it a couple of hundred good solid state watts and it rocks. The good news is that you don’t need a huge amplifier to run the MTT section.
Prepare sides, bottom and top panels and hold together with straps like seen on image. Pulling the horn forward some 12 cm about half the wavelength of the point of crossover and connecting with the same polarity also made a flat response. There is an underlying theme here I agree the woofers are no match for the AL but the compromises in work together. I have absolutely no idea what would be the cost of the mentioned “Array” clone pair and if they are not too expensive, Rob’s good experience with them, may be a good suggestion for the hbl members to start DIY projects, especially it seems to me that they are not so large as mentioned x family.
Prepare for the two upper braces and midrange cabinet, so this can be inserted when the cabs are assembled. It took me a long time to take my eyes off the 2123b midrange driver, because it can do wonderful things, but I was never happy with the crossover complexity to make the driver do what I wanted.
JBL H 10″ 8 Ohm Midrange Audio Speaker DB Sensitivity Watts Cont. | eBay
Then add some EUR for the Hypex modules running the 18″ bass driver in case this is preferred. So she’s just as incredulous as the rest of us trying to buy Pro thru Consumer, but she stuck with it. Download Fusion series here. I think this is because these newer systems are easier to listen to 2123 those older designs chopped up the presentation into distinct ranges and that forced you to listen and focus in on each driver.
Hi, I love my ti’s and the 8″ H mid.
Images : JBL 2123H
2123b Let’s start with the 10NDA midrange driver. Here the speaker with the Wiawave GRT as super-tweeter. These studio monitors are my inspiration, and let’s get to my main concern immediately, because the reason for holding back on such a construction is the issue of time-alignment of of midrange driver and the horn. The images hardly convey how gigantic these 18″ drivers are.
JBL H Sonic character and use in monitors? [Archive] – Lansing Heritage Forums
Use ATiRi baffle dimensions and place from speaker front panel. Final system measurements So, here’s the response from the final crossover showing midrange green from Hz, the horn orange and tweeter.
I sure wish I could land a second one, 10 months now.
The second driver in line for midrange is the 10NW The S is the perfect evolution.