Lii Audio 21 Inch Woofer for Bass Compensation of Open Baffle or Cabinet | W-21

[Devnull]

The fact that BassBox doesn't like the specs would be enough to steer me away from that driver. Like previous posters have said Dayton Audio and Lavoce have a few 18inch drivers at or below the same price point.

 

[mhardy6647]

The fact that BassBox doesn't like the specs would be enough to steer me away from that driver. Like previous posters have said Dayton Audio and Lavoce have a few 18inch drivers at or below the same price point.

It certainly is a thought-provoking bit of information to add to the Lii driver goulash.

 

[Devnull]

It certainly is a thought-provoking bit of information to add to the Lii driver goulash.

Yup. IIRC yellow means +- 3% and red means at least 6 maybe 7% off what's expected. I can easily see 2 or 3% off published spec for any number of non nefarious reasons but any more than that and you really need to start thinking should I really be considering using this driver.

 

[JohnnyNG]

I used a pair of these Goldwood 18" in a big open baffle years ago. Worked well but too big to be useful. Not sure if it's still sold.

Goldwood GW-1858 - 18" Open Baffle Woofer

Technical information, audio measurements and mini review of the Goldwood GW-1858 Woofer, a high sensitivity 18-inch woofer driver which is well suited for use with open baffle speaker systems. Included are measured the T/S parameters, photographs and driver specifications and response graphs.

diyaudioprojects.com

 

[mhardy6647]

... Worked well but too big to be useful...

Tell that to the guys (and I'd bet money that most of them are guys) who are buying 85 inch* (and larger) televisions.

Prices of Very Large Flat TVs are Falling Fast

I am pleasantly surprised how fast prices are falling on flat TV's 85 inches or larger: https://apnews.com/article/big-tv-screens-technology-holidays-43ca60a7306284c0f2f11eba9bc1d09f I am also surprised I have a two flat screen TVs from 2007 and 2009 (in secondary locations) that refuse to...

www.audiosciencereview.com

____________
* sorry for the Imperial measurement -- I reckon that soon screen size for TVs will be measured in hectares worldwide.

 

[Poultrygeist]

Help me design a sub with this 21" speaker.

OB or box... looking for a fun, good looking sub not too obnoxious.

92 dB should be pleasant.

Lii Audio 21 Inch Woofer for Bass Compensation of Open Baffle or Cabinet | W-21

View attachment 404084

Technical Data:

1. Related power – Maximum power: 200W – 250W
2. Nominal Inpendance Z: 8+8 Ohm
3. Fs: 23.78Hz
4. Qms: 6.438
5. Vas: 913.57 L
6. Cms: 0.528 mm/N
7. Mms: 643.9 g
8. Sd: 2614.82 sqcm
9. Qes: 0.934
10. Qts: 0.816
11. Re: 7.60 ohm
12. Sensitiviry (2.83V / 1m): 92 .1dB （single coil）

Weight (unit in package) 30KG

My W-15 came yesterday and the beast is so heavy I could barely get it into the garage. Building a thick and supportive baffle that's somewhat movable should be a challenge.