Ok!
Btw, how much fill there is in the enclosure at the moment, I red somewhere that 8oz? If you would really stuff it, how much extra could you fit?
I suppose I could fit another 8oz in there. Right now it's not too packed, maybe about 5 or 6 on a scale of 1-10. It's all filled up, just not tightly.
I asked because at my previous project I was using Eighteen Sound 8M400 as a midrange and I noticed that distortion in sound was reduced the more damping I put in to the enclosure. I tried different amounts, starting with a 'normal' amount and in the end I put there everything I could fit.
So you might want to try if the distortion measures lower with much more stuffing. In that case the differences probably should grow bigger between the best and the worst drivers, making them easier to see.
So you might want to try if the distortion measures lower with much more stuffing. In that case the differences probably should grow bigger between the best and the worst drivers, making them easier to see.
You tell us.
Here you go))).
I simulated it for home use from 150hz up to 1,100hz.
Should work for PRO from 250hz?
BL is 26, QTS is 0,2 and now on Ebay its lot's of them cheap!
Nothing here about distortion
What you think about impedance?
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Here you go))).
I simulated it for home use from 150hz up to 1,100hz.
Should work for PRO from 250hz?
BL is 26, QTS is 0,2 and now on Ebay its lot's of them cheap!
Nothing here about distortion
What you think about impedance?
You can see JBL's distortion measurement for it here.
Should have no problem working 250Hz+, as that was it's intended range. Should be ok down to 200Hz as well if you tune it perfectly and have a steep crossover. Just have to balance everything out. Be wary of that "5.7mm Xmax". Most drivers of this nature, while they may have that much actual voice coil overhang, will not be suited to that much excursion. Realistically, I'd say half of that, from a safety standpoint. I'm sure it's a fine driver, but it's not for me. Impedance is not for me either, lol.
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Very, very bad range to cover by one driver.
While at lower end you need huge surface area for good kick and driver works at pump mode, but at the higher end you need relatively small surface for keeping it from lobing and driver works at direct radiation mode.
The borders for midrange 10-12” somewhere around 300-900 Hz, and borders for 6-8” at around 700-2k.
Say for famous 18Sounds 12mb700 and 6nd410 this will look like this:
And keep in mind, powerful 10-15” midbasses with strong cone and inductive winding couldn’t achieve some kHz.
So you better to divide bands differently, or add additional band inbetween.
Remember my words, you will be pleasured with dedicated good quality potent midbass coupled with your’s hi-q midrange.
Very, very bad range to cover by one driver.
While at lower end you need huge surface area for good kick and driver works at pump mode, but at the higher end you need relatively small surface for keeping it from lobing and driver works at direct radiation mode.
The borders for midrange 10-12” somewhere around 300-900 Hz, and borders for 6-8” at around 700-2k.
Say for famous 18Sounds 12mb700 and 6nd410 this will look like this:
View attachment 748182
View attachment 748183
And keep in mind, powerful 10-15” midbasses with strong cone and inductive winding couldn’t achieve some kHz.
So you better to divide bands differently, or add additional band inbetween.
Remember my words, you will be pleasured with dedicated good quality potent midbass coupled with your’s hi-q midrange.
There are always compromises to be made. Some are just prepared to make compromises that others aren't.
Very, very bad range to cover by one driver.
While at lower end you need huge surface area for good kick and driver works at pump mode, but at the higher end you need relatively small surface for keeping it from lobing and driver works at direct radiation mode.
The borders for midrange 10-12” somewhere around 300-900 Hz, and borders for 6-8” at around 700-2k.
Say for famous 18Sounds 12mb700 and 6nd410 this will look like this:
View attachment 748182
View attachment 748183
And keep in mind, powerful 10-15” midbasses with strong cone and inductive winding couldn’t achieve some kHz.
So you better to divide bands differently, or add additional band inbetween.
Remember my words, you will be pleasured with dedicated good quality potent midbass coupled with your’s hi-q midrange.
Previously I wanted exactly this - separate midbass with 12" from 70 to 300hz. But then, that "may be" was getting to my mind))). Anywhere, thank you all for clarification!
This is a really cool addition to mostly any system. Most of them lacks response/sensitivity/speed in that band and can’t properly reproduce medium drums.
So, go further ahead - pick any cool midbass driver (Mms/Bl ~= 2-3, Fs~50, Vas~70-100), limit him in volume (1/3-1/4 Vas), highly tune bassreflex (60-80 Hz), feed it generously (>400 Wt) and you’re in. Don’t forget about radiating surface area - 15”>>12”>>10”. Keep in mind direct and/or focused radiation from cone, being straight it will wiggle your hairs.