If driver measured in room without special treatment is within 5dB that’s great. I have had my measurements come pretty close to Vifa/Peerless factory ones. Dayton is also very honest with their plots and sensitivity and TS parameters. I have found them consistently more accurate than other “higher end” brands. Even ScanSpeak drivers do not measure with as low of a Qts as they claim.
If you put mic 0.5m away and place speaker on stand greater than 0.5m and use 6 cycle FDW in REW, it gets pretty close to what it should be and looks like factory curves if they are honest.
If you put mic 0.5m away and place speaker on stand greater than 0.5m and use 6 cycle FDW in REW, it gets pretty close to what it should be and looks like factory curves if they are honest.
Doing that and then sensitivity numbers is spoiled in it looks decrease to 85-86dB area, below traced W3-665SC is overlaid with traced 10F/8424 datasheet which sensitivity numbers from factory is listed as 86,6dB and TB list their as being 88dB so its low 1mm Xmax stroke can start be a problem the less real world sensitivity goes.
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Congratulation new deal and low costs are always welcome 🙂 note linear stroke is now down at tiny 0,5mm. It looks like your taste is those stealth fighter looks, Dayton Audio RS100 and Visaton B80 have also that look but with much more stroke, but unfortunate costs is also higher.
That driver has a sticky never dry coating between the surround and cone - shiny wet look. It really is wet like flypaper adhesive and all sorts of dust will stick to it. I think it’s the dampener to reduce cone breakup. Don’t use in dusty environments.
No, never used but I have other TB drivers with same sticky coating on surround. I have a small 2in fullrange that you probably won’t be interested in. Also some 5in sub woofers which are very nice and measure accurately compared to published TS. It’s the discontinued W5-876SE. I have lots of those.
I bought woofers yesterday too. Old east german 8" rft l2911. FS40Hz, 4ohms, QTS 0,5 . They were so cheap that i couldn't resist and bought them. Whole speakers for 12$ plus ship.
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