And use two in an Isobarik alignment and now you’re talking……and still well within budget
I thought Max SPL at a given frequency is a function of Vd, nothing more. That is, 2 x RS225-8 in parallel or 2 x RS225-4 in series will have the same Max SPL.
Yes - that is true in theory. But as I understand it, the parallel coupling, would make better use of the voltage swing in a capable power amplifier - mine is.
Also, I often read that 8ohm drivers in general behave better than 4hom versions - no firm proof of this, though.
All this might lead to small details overall - maybe none - sonically. But the responses I get around woofers, tells me we, that we're nitpicking already - right?
@digitalthor another one to look at is the Fountek FW222 - still available from various places and models well for closed box based on datasheet; not too expensive, looks quite modern with the grill, breakup well outside your intended range.
Damn.,... that was quite unexpected. It looks nice, cheaper than all the others, and only real "downside" is its low power handling.... but with 2, and no real low frequency exposure, I'll think it'll be just fine. It might even be "snappier" than the others with its lower mass. Needs 70 liters for two. Not unreasonable... even though around 15 liters more than something like the WO24. Tempting.... really is
This Seas looks nice too...but is the price worth it
https://doc.soundimports.nl/pdf/brands/Seas/U22REXP-SL/pdf_Seas_U22REXP-SL_1.pdf
With two drivers, I need just 43 liters, to get a F3 of 70Hz. Just shy of 20 grams of cone mass. Should be snappy and detailed.
https://doc.soundimports.nl/pdf/brands/Seas/U22REXP-SL/pdf_Seas_U22REXP-SL_1.pdf
With two drivers, I need just 43 liters, to get a F3 of 70Hz. Just shy of 20 grams of cone mass. Should be snappy and detailed.
@Michael Chua's TS measurements of his sample: https://ampslab-spk.com/2023/06/20/u22rex-swallowbc/
There is no evidence that lighter / lower Mms drivers sound snappier or more detailed.
Found another candidate! https://en.toutlehautparleur.com/speaker-sica-8h2cp-8-ohm-8-inch.html Demodulating ring, not insanely expensive, decent Xmax, pro driver power handling, linear in passband, not too expensive, models well closed box, rugged looks.
Ah @jerome69 mentioned it already
Ah @jerome69 mentioned it already
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The Fontek WF222 really looks nice... but I can't find anyone using it, or testing it. I think I found a little bit on the older WF200..... but that seems to be a totally different driver.
The most comprehensive datasheet, still seem to be Wavecor WF223BD02. And the HTguide test, indicates, that this driver has the most smooth low distortion of all drivers present.
Anyone who knows why the Wavecor datasheet shows almost 300 ohms at resonance?
http://www.wavecor.com/html/wf223bd01_02.html
The most comprehensive datasheet, still seem to be Wavecor WF223BD02. And the HTguide test, indicates, that this driver has the most smooth low distortion of all drivers present.
Anyone who knows why the Wavecor datasheet shows almost 300 ohms at resonance?
http://www.wavecor.com/html/wf223bd01_02.html
These might be of interest
Out of stock
https://www.soundimports.eu/en/hivi-m8n-1b.html
Same or slightly different?
https://www.soundimports.eu/en/hivi-m8n.html
There PC speaker set up was pretty cheap but as they perform rather well the price shot up.
Out of stock
https://www.soundimports.eu/en/hivi-m8n-1b.html
Same or slightly different?
https://www.soundimports.eu/en/hivi-m8n.html
There PC speaker set up was pretty cheap but as they perform rather well the price shot up.
Interesting, that they are proud of their "high-loss" surround, when all others pride themselves with "low-loss".....
https://www.soundimports.eu/en/hivi-m8n.html
I would definitely consider. If it wasn't for their specific claim of a "warm" sound. I most surely do not need warmer bass in my room or with most music. I'd much rather have a firm, detailed and "correct" bass.
Another thing....
When you look closer at the Fountek WF222 and the Wavecor WF223BD. I mean - look at the chassis/basket, magnet, shape.... Aren't they very closely related - besides the obvious color, cabinet sealant, sticker and cone/dome difference??
https://doc.soundimports.nl/pdf/brands/Fountek/FW222/FW222-data-sheet.pdf
https://www.parts-express.com/Wavec...ber-Cone-Mid-Woofer-8-Ohm-298-1214?quantity=1
When you look closer at the Fountek WF222 and the Wavecor WF223BD. I mean - look at the chassis/basket, magnet, shape.... Aren't they very closely related - besides the obvious color, cabinet sealant, sticker and cone/dome difference??
https://doc.soundimports.nl/pdf/brands/Fountek/FW222/FW222-data-sheet.pdf
https://www.parts-express.com/Wavec...ber-Cone-Mid-Woofer-8-Ohm-298-1214?quantity=1
HiFi snake oil. Maybe it's what damps the cone. On Visaton using there full data, only available in Boxsim I have noticed some oddities with al cones.
Talking brand this one may interest you
https://www.visaton.de/sites/default/files/dd_product/W 200 S_9029_9030.pdf
Not sure the price is a parameter to take account too early. This driver has some qualities and is unique, the closest drivers I know with a similar cone are from SBA MFC or Audio Technology. The choice is huge with your specifications, not so huge when you have more constraints like use in a two ways. This driver is a good candidate.This Seas looks nice too...but is the price worth it
You should make a table with parameters to make your final choice ?
The reason it all started. Was that I already play with 2x 8" SB23NRX in a closed box of 60 liters. The sound is ok. But the flange of the SB NRX series, is rather big, and I still believe the motor could be better - maybe giving a bit more sonic detail. So I started researching the hell out it....sometimes more or less successful
Oh... just zoomed in.. the Fountek is dark grey - not black
So, for 2 x 8-9" woofers, F3 at 50Hz, clean to min 500Hz in a closed box, and most detailed and correct possible sound, nice even/smooth look, that would match something like a black KEF Coax - and technically and sonically better than the SB23NRX.
Purifi, Excel, Texteme, Revelator, Ellipticor and the likes... that is simply too much money - IMO. Around 200 Euro a piece, would be around the max.
Let me also switch it around. What are the inherent drawback of the following drivers?
Wavecor WF223BD02
RS225-8
SB WO24P-8
And other drivers - if someone has specific drivers in mind - so that they can be sorted - and choices narrowed down.
By the way. Thanks to all for their patience and knowledge
I definitely hope that this also help others, to collect this information - smoothing out some myths too 🤞
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This Punktkilde shares the same basket as well.
https://www.punktkilde.com/augwl0020-jn03#product-menu
108Eut at Soundimports, looks good in 35l BR.