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People that are interested in the 708P might be interested in these links.https://www.sausalitoaudio.com/wp-content/uploads/2018/07/JBL-708P-Charts.pdfhttps://www.sausalitoaudio.com/wp-content/uploads/2018/07/Interpreting-Spinorama-Charts.pdf
I have the 705P. Bought from Sweetwater along with Pro Jax and Mogami XLR interconnects. I'm driving them with an OPPO Sonica. They differ from the 708P in size and weight and woofer diameter, as well as in lower extension. 3 db down point is 45 hz. for the 705 and 41 hz. for the 708. Only other difference is ultimate SPL. The 705 is 101 db. and the 708 goes a little louder. That's it. If you are in a small to average room you might prefer the 705 if you will be using a sub anyway. I don't need one with these and many of you might not either.
Plan is to run these out my PS Audio DS Jr. at about ~9 ft in a relatively small room. I do plan on augmenting the 705 or 708 with a dual-opposed 12" sub. Certainly the 705s would save me a fair bit of $, but I am concerned about that organ pipe resonance vs. the 708.
These puppies are only 12 lbs. As I've said in other threads (on the 305 and 705), that the cabinets seem to be the weak spot. I braced the walls (lodged in some cut to size dowels) of my 305P's and it made a huge difference in making them have tighter/less boomy bass.
I too don't understand why audiophiles buy vertical arrays, dipoles, omni-directional, MTM, and other non-monitor type speakers.
People that are interested in the 708P might be interested in these links...
It isn't the cabinets that leads to that graph, it is the port noise. See the measurement. I don't know how audible this is at distance.
However, pink noise and music are different beasts, and with the constantly changing character of most music, it would be very hard consistently to pin down and identify the effect.
... the 708p data presented really gets me wondering again what the 708i looks like plotted without its DSP correction. Sure, it won't be as good on paper as after DSP or as the powered 708p, but I wonder again if with a little judicious massaging of the passive crossover in the 708i that the basic design could get say 95% of the good stuff this speaker has been praised as doing into the hands of the masses in audiophile-land that aren't ready to sell off their whole systems and start over. Kind of like the 4367, from most accounts having heard both, isn't quite the M2, but it is still a pretty darn fine speaker and gets a lot of the big-picture magic from the method in a more audiophile mainstream package.
JoshK - I have recognized no sound from the ports and will not listen for it. Don't believe in creating dissatisfaction. My listening is for enjoyment, rather than a furthering of the speaker design trade. It does seem to me that extreme nearfield (like a desktop) listening would be at a commensurately lower SPL, making any port breath proportionally less evident. As you move out to my 7 foot distance no port sound is apparent.
At the price point of the 7-series (vs. the 3-series), I assume the cabinet construction is substantially better, is it not?-dGB
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