What's the best 4-8" wideband you heard reproducing the midrange/treble?

[youknowyou]

There is also the 5 from EMS speaker with aluminium dustcap. But 200 hz xover is too much low for that efficienty.

You will have a lot of baffle test in the midrqnge so you loose around 3 to 5 dB in an average room.
You will not find a FR without double cone that goes full range to the treble and that can handle 200 hz in the same time. And even less lower if you want q 6 db slope xo.
3 and 4" are too small to marry with a 15 that low. It never will have enough xmax and Sd for a good blend at that 200 hz frequency.
So you need a 3 ways or plan highef XO... 400 hz for a good 15 is the usual limit. You can try some 8" and profit of their upper roll off to blend to 1.5 tweeter with no low pass on the 8 and a 1st slope high pass a little high :

Emminence beta 8 plus peereless tx32 (texteme). The c to c qnd off axis will be off course a trade off.

Or you sacrifice a lot of the efficienty of the 15 to rule the bafle step and manage more a low 91 dB for instance (ideal cut off at the baffle step according the width of the enclosure).

Understood

4” to 8” wideband wanted.

goal of the system is true 2 way. I want a point source from mid and up

 

[planet10]

You will not find a FR without double cone that goes full range to the treble and that can handle 200 hz in the same time

Not at all true.

dave

 

[planet10]

system will be first order series xo. Drove with el84 PP tube amp, no bi amp

Now you have to pay real attention to your sensitivities, how sensitive is the woofer?

dave

 

[diyiggy]

At the efficienty he needs ? We are not talking of 85 dB driver ?

 

[planet10]

If 94dB midTweeter woofer needs to be something like 97-98 dB.

dave

 

[diyiggy]

Maybe have a look at Sonido austria or chineese LFMAO (jim audio)

 

[planet10]

I have taken the liberty to change the dimensions in the title: Kick me if you object.

dave
diyAudio moderation team.

 

[diyiggy]

If 94dB midTweeter woofer needs to be something like 97-98 dB.

dave

Yes, but I dunno if a FR at 94 dB than can be crossed at 200 hz exists, if you know one good ? Imo he will need to climb higher the cut off and sacrifice the 15 efficienty to cross flat and find more easily the full range that goes to the highs. And higher cut off equals less Sd so 4 to 6 is more possible, no ? And less Sd climbs better in the highs.

 

[454Casull]

I have taken the liberty to change the dimensions in the title: Kick me if you object.

dave
diyAudio moderation team.

What was the title before?

 

[diyiggy]

I know some but they have all a second cone...like the tangband... w8-1808 and w8-1772

 

[youknowyou]

Now you have to pay real attention to your sensitivities, how sensitive is the woofer?

dave

i have two different woofer, so sensitivity of the wideband can be between 90db to 94-95db:

eminence pro 15 95 db
b&c ps100 93db efficient

I don’t know any 15” woofer that are true 98 db efficient

 

[diyiggy]

Have a close look to the w5-2143 then. You will loose 2 to 3 db because the bafle step but a diving spl response sounds good.

 

[youknowyou]

If 94dB midTweeter woofer needs to be something like 97-98 dB.

dave

agreed
IF i can find a midtweet that is a true 94db..
the fostex fe168ez is 90 db up to 2khz, not 94db like advertised for example!

i should add ill likely try more then one wideband. Ill build my speaker cabinet in a way i can swap the front baffle with another driver arrangment front baffle.

cab size is 150l. The wideband chamber will likely be sealed filled with a personally developed layers of absorption behind the wideband

 

[youknowyou]

Have a close look to the w5-2143 then. You will loose 2 to 3 db because the bafle step but a diving spl response sounds good.

That driver do look very very good, thx!

 

[diyiggy]

Yep but I am not confident about its true sensivity... try to find third party reviews.

 

[planet10]

I have measured FE168e∑ at 93.2-93.5dB

dave

 

[youknowyou]

I have measured FE168e∑ at 93.2-93.5dB

dave

At 1khz, 93db?
fostex rate it at 90db at 1khz

 

[planet10]

It is what is spit out by WooferTester2 so it is a LF number. Factory suggests 94.5, but from the graph 91-92 at 1KHz.

dave

 

[vinylkid58]

Bi-amp and all this driver efficiency nonsense becomes mute. 😉

jeff

 

[planet10]

And it is way easier in many other ways as well.

dave