SB Audience Bianco 25CD - $20 compression driver.

[duanebrow]

I have not seen any reviews of the SB Audience Bianco 25CD anywhere on the web. Other than it is a newer driver, any reason for this? I am new at looking for CD tweeters so I could easily miss something glaring. Some points on the driver:

SB Audience :: BIANCO-25CD-P

AES power Handing 20W with a 2.5khz crossover. This is lower power handling and a higher crossover point than most compression drivers. This is due to the 25mm voice coil.
However, the frequency response is quite flat down to 1000hz.

With a 109dB sensitivity, this looks like it could work well in a home setting with a much lower crossover than recommended.

SB does not publish distortion graphs. This makes knowing how this would perform at a lower crossover frequency unknowable.

I have thought of buying a pair to play with but I have nothing to compare them to.

Thoughts? Should I get my feet wet or save my money for something better?

 

[ScottG]

The impedance is problematic - it could cost you more for correction relative to your high-pass than the driver itself.

If you can spend more (though not terribly expensive), this is what I would recommend:

Peerless by Tymphany DFM-2535R00-08 1" Compression Horn Driver 2/4-Bolt 8 Ohm

Eminence SST1 1" Constant Directivity Horn 90x40 2-Bolt

the combo can be seen measured here (without any baffle):

Peerless by Tymphany DFM-2535R00-08 Compression Driver | audioXpress

Note: it says in the article that the horn is the APT150S, but it's not - rather it's the horn I've linked to above (..and be forewarned that I don't think they are making anymore of them so if you are interested - then purchase the horns while you can; the compression driver you can pick-up later if needed).

 

[Zvu]

You could try Mabat's ST260 waveguide with Peerless Scott suggested. It measures quite nicely:

https://www.diyaudio.com/forums/multi-way/338806-acoustic-horn-design-easy-ath4-751.html#post6737942

I don't know what's the price for printing in US but it costed me 50€ for a pair locally.

And crossover isn't too complicated but not too simple either.

Acoustic Horn Design – The Easy Way (Ath4)

 

[CharlieLaub]

The impedance is problematic - it could cost you more for correction relative to your high-pass than the driver itself.

Only people who use a passive crossover would have this problem. I would rather know what the distortion performance is like as frequency drops below the recommended crossover point of 2.5kHz.

 

[TNT]

You could try Mabat's ST260 waveguide with Peerless Scott suggested. It measures quite nicely:

https://www.diyaudio.com/forums/multi-way/338806-acoustic-horn-design-easy-ath4-751.html#post6737942

I don't know what's the price for printing in US but it costed me 50€ for a pair locally.

And crossover isn't too complicated but not too simple either.

Acoustic Horn Design – The Easy Way (Ath4)

I wish these links would bring me to the intended posts (for me...)! As linking is flaky in diyaudio I always add the post number too, like: #5

//

 

[Zvu]

Posts #7506 and #7821

Links lead me to the desired posts when i click on them.

 

[baryon777]

Tried one out today, I don't have measuring equipment set up at the moment but I thought it's upper range sounded better than my typhany cd. The sb needed to be crossed over much higher though, at least 2k. I have a faital hf10ak that sounds clearer than both of those but it's much more expensive.

 

[joensd]

Could make a nice bang for buck design with this new 10" mid-bass from Dayton:
MB1025-8

As linking is flaky in diyaudio I always add the post number too

Linking used to be "off" when your personal setup for "shown number of posts per page" deviated from the standard (which used to be 10 or 20 posts).
Haven´t tried any links since the new design.