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Choosing the right 5" midrange
Choosing the right 5" midrange
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Old 10th September 2019, 07:34 PM   #51
Zvu is offline Zvu  Serbia
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Originally Posted by Pida View Post
Wavecor SW223BD03/04
It doesn't worth 260/piece. Pair of Dayton RSS210 can be bought for the price of one Wavecore with no apparent difference in performance.
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Old 10th September 2019, 08:06 PM   #52
Hydrogen Alex is offline Hydrogen Alex  United Kingdom
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Originally Posted by Zvu View Post
While we are at it, are there any 8-12 inch woofers that can work well (at least to 45Hz) in a sealed cabinet these days ?
Here is a Sim of a Beyma 12 LX60 V2 in a very small box.
Also a couple of bigger drivers for comparison.
They all assume you have plenty of clean amplifier power and build very solid 24mm Birch Ply cabinets.
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File Type: pdf Beyma 12 LX 60 V2 in 29 litres.pdf (172.9 KB, 22 views)
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Old 10th September 2019, 08:16 PM   #53
Draki is offline Draki  Macedonia
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Originally Posted by Zvu View Post
While we are at it, are there any 8-12 inch woofers that can work well (at least to 45Hz) in a sealed cabinet these days ?
8" and 10" Scan Disco 22W4534 and 26W4534

12" Beyma 12BR70 / SB30NRX75-4

Last edited by Draki; 10th September 2019 at 08:18 PM.
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Old 10th September 2019, 08:30 PM   #54
Hydrogen Alex is offline Hydrogen Alex  United Kingdom
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Here is another nice Beyma 12 inch for small sealed box applications.
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File Type: pdf Beyma P1000 Nd subwoofer sim.pdf (121.1 KB, 11 views)
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Old 10th September 2019, 08:31 PM   #55
Hydrogen Alex is offline Hydrogen Alex  United Kingdom
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PS the Beyma 10MC 500 looks great on paper for a smaller sealed box but I havnt run a sim.
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Old 10th September 2019, 09:00 PM   #56
MIJK is offline MIJK  Sweden
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Quote:
Originally Posted by Zvu View Post
While we are at it, are there any 8-12 inch woofers that can work well (at least to 45Hz) in a sealed cabinet these days ?
While we are at it? Posted in the wrong thread?

What in your question has to do with a ~5" driver used as a dedicated mid?

As for the topic on hand, I'll be thinking some and will post again soon.

I did a spec sheet of what I've wanted out of this speaker such as extension downwards, box volume and so on, but decided it would be nice to not be so locked up at the beginning. Maybe I should find that paper and go thru it again and post it.

Volume, preferably under or around 75L. But, bigger is possible. Downwards, the extension I would like to have is usable 30hz, 25hz would be even better but not a must, more like icing on the cake. That's around the lower limit of the music I usually listen to, 30hz that is. Yes it's electro music.
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Old 10th September 2019, 09:37 PM   #57
Moondog55 is offline Moondog55  Australia
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If by usable you mean -3dB at 30Hz it is a big ask of 8" drivers, even a pair of them. Some of the older Vifa woofers I have will do it but only with massive and steep cut offs at 25Hz and with big vents
Does your amplifier set-up have such subsonic protection built in?
I must have missed the information but I would [ and do] use a pair or triplet of subwoofers for the last bass octave.
My 11YO grand daughter has good ears and thinks the last cheap build was "excellent" and that was the cheap Peerless 830656 and it can play plenty loud and clean up to its thermal limit
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Old 11th September 2019, 03:14 PM   #58
Zvu is offline Zvu  Serbia
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Originally Posted by Hydrogen Alex View Post
Here is a Sim of a Beyma 12 LX60 V2 in a very small box.
Also a couple of bigger drivers for comparison.
They all assume you have plenty of clean amplifier power and build very solid 24mm Birch Ply cabinets.

Here is another nice Beyma 12 inch for small sealed box applications.
PS the Beyma 10MC 500 looks great on paper for a smaller sealed box but I havnt run a sim.

None of them gets to around F3<=45Hz anechoic. I'm not inclined on making loudspeakers that will be room specific, so while some of these woofers would work in some rooms, in other (larger) it wouldn't or would be very different performance. Thanks.

Quote:
Originally Posted by Draki View Post
8" and 10" Scan Disco 22W4534 and 26W4534

12" Beyma 12BR70 / SB30NRX75-4
Two Scans will not work their best in closed cabinet nor will they get low enough. I'm guessing you wanted to write SB34NRX75-6 ? It's a good one and will be very good woofer in a closed volume of around 70 liters - if TS parameters from SBacoustics is to be trusted.

I know about the Beyma 12BR70 but in Beyma they've made a mess with revisions and model naming. There are 3 variants of 12BR70 and only one will work in closed cabinet of around 100 liters (if i remember correctly from when i simulated its response, it was a long time ago) so it's hit and miss with it.

Quote:
Originally Posted by MIJK View Post
While we are at it? Posted in the wrong thread?
What in your question has to do with a ~5" driver used as a dedicated mid?
....

Thread hijacking wasn't my intention since i thought you will need a woofer or two soon or a later, so you too will benefit from slight diverge from subject. If you are bothered that much by these few posts, please do contact the moderators and i'm sure they will separate it to a different thread.
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Old 11th September 2019, 03:52 PM   #59
Hydrogen Alex is offline Hydrogen Alex  United Kingdom
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This is an interesting 5 inch midrange, http://www.phlaudio.com/products/?no...723e70ac8b09db

I have never heard one but I have heard and used older PHL divers and they have always sounded great.
PHL is a strict OEM company, but you can buy their drivers here:

PHL 1660/E172 - WAR Audio l Online Store
I used a pair of these 1660 midrange crossed over from a PD 1550 bass at 350 Hz to a Beyma TPL from 2.2KHz... Hard to beat in my (limited) experience.
Cheers
A.

Last edited by Hydrogen Alex; 11th September 2019 at 03:55 PM.
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Old 11th September 2019, 06:28 PM   #60
Charles Darwin is offline Charles Darwin  United Kingdom
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This is the official PHL retailer for Europe:

PHL Audio speakers : Made in France !
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