Some speaker driver measurements...

[HiFiCompass]

The measurements out of my old archive made in 2014 - SB29SWNRX-S75-6:

SB Acoustics SB29SWNRX-S75-6 | HiFiCompass

 

[HiFiCompass]

ScanSpeak 18W/8545-01 woofer's measurements:

ScanSpeak 18W/8545-01 | HiFiCompass

 

[HiFiCompass]

Measurements of the Dayton Audio RS225P-8A woofer:

Dayton Audio RS225P-8A | HiFiCompass

 

[5th element]

And now we see why the RS225 series is a go to recommendation for the bottom of a three way.

 

[Zuhl]

You can also see why it shouldn't be used in a two way. That metal cone breakup is far too low for a two way.

 

[Jonasz]

You can also see why it shouldn't be used in a two way. That metal cone breakup is far too low for a two way.

Even worse concidering it's a paper cone...

 

[piotr z]

It's nothing special - If you take into account sensitivity, larger woofers like deltalite are far better. It'd be ok for small 3w TMWW.

 

[manninen]

small TMWW with 15" deltalite

 

[peterbrorsson]

It's nothing special - If you take into account sensitivity, larger woofers like deltalite are far better. It'd be ok for small 3w TMWW.

 

[454Casull]

Even worse concidering it's a paper cone...

Paper usually behaves as a rigid cone.

 

[celef]

By nostalgia i like the Scan speak 18w8545 family of drivers, but the imd might be the answer why it sometimes sounds so harsh, like on Electric guitars

 

[piotr z]

Care to elaborate?

 

[454Casull]

And now we see why the RS225 series is a go to recommendation for the bottom of a three way.

Wonder if the RS270P-xA would be just as good, or even better.

 

[ILikeFoodz]

Probably, or at least I hope so. I'm looking at using the aluminum version of that as an addition to a 2-way I liked so much that I thought I'd change it to a 3-way! One of them models as an almost perfect match to my RS100P-4A midrange in a 4th order bandpass box.

 

[Jonasz]

Grand Comparatif de 10 pouces Partie 1 - JustDIYIt !

Grand Comparatif de 10 pouces Partie 2 - JustDIYIt !

The aluminium version is excellent as long as you cross it below 900hz or so.

 

[augerpro]

Wonder if the RS270P-xA would be just as good, or even better.

The RS270 is an underappreciated beast. I prefer the metal versions though, they go significantly lower than the paper, and have cleaner HD.

 

[454Casull]

The RS270 is an underappreciated beast. I prefer the metal versions though, they go significantly lower than the paper, and have cleaner HD.

Don't have the paper versions have upgraded motors? The marketing material for them contains "Low-distortion high-excursion motor system with two short-circuit paths" whereas the original metal-cone versions don't show that.

 

[Jonasz]

Don't have the paper versions have upgraded motors? The marketing material for them contains "Low-distortion high-excursion motor system with two short-circuit paths" whereas the original metal-cone versions don't show that.

Yes it does if you check the pdf.

 

[HiFiCompass]

A group review of the new BlieSMa T25-6 tweters line:

BlieSMa T25A-6, T25B-6, T25D-6, T25S-6 | HiFiCompass - всё для акустических систем и не только

It is in Russian, the English version is coming...

 

[peterbrorsson]

Care to elaborate?

It's quite good, especially considering price. To compare it with a larger woofer is also pretty meaningless!