Just checking out this driver on Parts Express and can't figure out how this driver can claim an Fs of 75hz. Based on the manufacturers provided response curve it looks like it's dropping off well before 100hz.
Here's a link to TB's spec sheet:
http://www.parts-express.com/pdf/264-887s.pdf
Here's a link to TB's spec sheet:
http://www.parts-express.com/pdf/264-887s.pdf
seems OK. fs is determined from the maximum in the impedance curve. and with the low qt value, the early roll off can be expected.
btw: finally a TB 3" with a usefull Xmax!
btw: finally a TB 3" with a usefull Xmax!
Edit -you beat me to it. Anyway, concurred, it looks fine to me, based purely on the manufacturers published sheet linked to. Impedance peak on the spec. sheet indicates Fs is at the 75Hz stated, & the mass corner of 2Fs/Qt = 483.87Hz matches the FR curve.
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Thanks for clearing that up🙂.
So this one should have the high frequency performance of a 3 incher with the bass output of a 4 incher (same Fs as the 4 inch bamboo driver). Except for the low sensitivity it looks like a great little driver.
So this one should have the high frequency performance of a 3 incher with the bass output of a 4 incher (same Fs as the 4 inch bamboo driver). Except for the low sensitivity it looks like a great little driver.
Manufacturer response curve is usually on open baffle. You can get more bass by using horn or bass-reflex enclosure.
>>> So this one should have the high frequency performance of a 3 incher with the bass output of a 4 incher... Except for the low sensitivity it looks like a great little driver.
Yes, that's the usual trade off.
Godzilla
Yes, that's the usual trade off.
Godzilla
Did you get a look at this one? Wish I had a few extra bucks lying around to compare them to each other.
http://www.parts-express.com/pe/pshowdetl.cfm?&DID=7&Partnumber=296-220&ctab=2#Tabs
http://www.parts-express.com/pe/pshowdetl.cfm?&DID=7&Partnumber=296-220&ctab=2#Tabs
The Mark Audio are much more intriguing to me than either of those. Tang Band has yet to win me over, they have too little consistency, too many models, and don't seem to spend much time refining things before shipping.
Their 8" fullrangers do seem superb though.
Their 8" fullrangers do seem superb though.
Interesting 5" I havent noticed before
http://www.tb-speaker.com/detail/1208_03/w5-704d.htm
Maybe this 4" could be worth a try
http://www.tb-speaker.com/detail/1230_04/w4-1720.htm
http://www.tb-speaker.com/detail/1208_03/w5-704d.htm
Maybe this 4" could be worth a try
http://www.tb-speaker.com/detail/1230_04/w4-1720.htm
Henkjan,
>finally a TB 3" with a usefull Xmax!<
Don´t fall into that trap unless you´re talking car subwoomphers. A driver pumping like mad is a driver loaded with LF it can no way convert into SPL. Back to the drawing board, have a dream about a horn really loading the driver.😀
>finally a TB 3" with a usefull Xmax!<
Don´t fall into that trap unless you´re talking car subwoomphers. A driver pumping like mad is a driver loaded with LF it can no way convert into SPL. Back to the drawing board, have a dream about a horn really loading the driver.😀
Sure, a 3" will just move like if it was in weightless space
It can move, but wont push enough air
It can move, but wont push enough air
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As a sat unit or line array, 3" seems the optimimum size for a metal cone driver.
Just saw these on PE site- why are people comparing them to much more expensive drivers? Looks like a bit of a bargain for the spec.
There is a raise or possible breakup just under 20khz. Not sure about accoustic XO at 80hz as they drop off a little too much perhaps. Anyone tried them? They could be just what I'm looking for..
Just saw these on PE site- why are people comparing them to much more expensive drivers? Looks like a bit of a bargain for the spec.
There is a raise or possible breakup just under 20khz. Not sure about accoustic XO at 80hz as they drop off a little too much perhaps. Anyone tried them? They could be just what I'm looking for..
owner/operators of numerous Jordan and Mark Audio drivers might not concur with that 😉
IIUC That's a Dan Wiggins driver. It has the attention to detail I'd expect. Plus the datasheet specifically mentions XBL in the motor description.
It probably kicks donkey, but at that price it needs to.
Stuart
Wish Jordan did a model between the jx92 and the jxr6.. wd be the perfect driver IMO
Mark Audio already do several. I know I'm going to get some flack for saying this, as Jordan are often seen as some kind of sacred cow, but the fact is, the engineering in the MA drivers is also several generations beyond the Jordan units. The latter remain good performers, but the world moves on, simple as that.
I think MA are considered more sacred on here😀
Hey, I hear there may be some competition for MA soon...
Hey, I hear there may be some competition for MA soon...
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In all seriousness, sacred, no; well regarded, yes. How many manufacturers of FR / WR units do you know of that a/ actively ask what people want, and b/ put a lot of effort into actually improving performance in new models?
Competition is good. Improves the breed.
Competition is good. Improves the breed.
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Well, I must have emailed every manufacturer recently - its good to hear that there are some new full range models in the pipeline.
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Scott, I think few pos(t)ers herein are aware of Mark's devotion, emotion and most surprisingly as you note, the direct feedback he invites - guys (it's hard to think of Mark as a typical faceless corporation) like this are certainly to be cherished and encouraged
of course we'd all be interested - care to share with the class?
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