Hey guys,
I've been torn between the SB Audience Bianco 18SW450 and 15OB350 for a long time. Intended for use up to 500Hz-ish, handing over to a horn loaded full range driver or MEH. Open baffle to start with, possibly boxed when I buy a house next year and can integrate with e.g. a false wall.
The 15" is marketed for open baffle, but it seems like the 18" has better factory measured FR. The 18" costs about 50% more here in Australia, and also has about 50% more displacement. I've been wondering whether that, together with the fact that the 18" has a cast frame, makes it a better value proposition.
https://www.sbaudience.com/index.php/products/subwoofers/bianco-18sw450/
http://www.sbaudience.com/index.php/products/open-baffle-drivers/bianco-15ob350/
A few forum members have experience with these drivers. Which would you choose, if you were starting over?
I've been torn between the SB Audience Bianco 18SW450 and 15OB350 for a long time. Intended for use up to 500Hz-ish, handing over to a horn loaded full range driver or MEH. Open baffle to start with, possibly boxed when I buy a house next year and can integrate with e.g. a false wall.
The 15" is marketed for open baffle, but it seems like the 18" has better factory measured FR. The 18" costs about 50% more here in Australia, and also has about 50% more displacement. I've been wondering whether that, together with the fact that the 18" has a cast frame, makes it a better value proposition.
https://www.sbaudience.com/index.php/products/subwoofers/bianco-18sw450/
http://www.sbaudience.com/index.php/products/open-baffle-drivers/bianco-15ob350/
A few forum members have experience with these drivers. Which would you choose, if you were starting over?
I’ve used the 15OB350, but not the 18. Considering it’s OB therefore Vd is at a premium, I’d pick the 18 if I had the choice.
Have you noticed any resonances related to the stamped frame of the 15OB350?
I forgot to mention that I'll be using DSP for the crossover. I won't often go above 80 dB mean SPL.
I forgot to mention that I'll be using DSP for the crossover. I won't often go above 80 dB mean SPL.
No, it's not an issue for me. This is the project: https://www.diyaudio.com/community/threads/ultimate-open-baffle-gallery.123512/post-6682515
I have used 18sw450 and 12inch version of 15OB350 in different applications. 18sw450 as a subwoofer and 12ob150 for a guitar FRFR cab.
When it comes to bass extention there is no competition 18sw450 wins hands down. Since directivity seems fine below 500hz I would go with 18sw450 for your application.
When it comes to bass extention there is no competition 18sw450 wins hands down. Since directivity seems fine below 500hz I would go with 18sw450 for your application.
https://www.parts-express.com/GRS-1...er-with-3-Voice-Coil-8-Ohm-292-810?quantity=1
-of course shipping might be crazy high.
Really, SB products should be much cheaper in Oz given the proximity to Indonesia.
-of course shipping might be crazy high.
Really, SB products should be much cheaper in Oz given the proximity to Indonesia.
That’s a good price assuming std. shipping isn’t to high.
At one point you could get them for less than $150 euros (obviously from a European country), but that isn’t true anymore.
Still, the GRS 18” are a better deal (at least where you can get them in-country), and maybe the better driver below 80 Hz objectively.
At one point you could get them for less than $150 euros (obviously from a European country), but that isn’t true anymore.
Still, the GRS 18” are a better deal (at least where you can get them in-country), and maybe the better driver below 80 Hz objectively.
I had a look at shipping the GRS - many $100s, unfortunately. Parts Express is a bit of a tease for us Australians.
When I have a chance I'll post some sketches of what I have in mind. I've been making OS waveguides from papier mache, based on conical light shades. With roll back they end up in the 50 cm+ range so I can probably get away with the width of the 18SW450. I figure with that much displacement you could experiment with other topologies - perhaps even a cardioid setup very close to the wall (quadrapole) with either a waveguide top end or a full range LXMini style, but almost flush with wall.
With young kids I don't have much time to build enclosures and squeeze all the juice out of drivers. Splurging on more displacement for ease of construction is a way to trade money for time while still getting satisfaction from DIY.
When I have a chance I'll post some sketches of what I have in mind. I've been making OS waveguides from papier mache, based on conical light shades. With roll back they end up in the 50 cm+ range so I can probably get away with the width of the 18SW450. I figure with that much displacement you could experiment with other topologies - perhaps even a cardioid setup very close to the wall (quadrapole) with either a waveguide top end or a full range LXMini style, but almost flush with wall.
With young kids I don't have much time to build enclosures and squeeze all the juice out of drivers. Splurging on more displacement for ease of construction is a way to trade money for time while still getting satisfaction from DIY.