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Old 21st January 2012, 07:43 AM   #1
matsj is offline matsj  Sweden
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Default Danley TH-221 drawings ?

In a near future i´m moving to a new place and want to build new subs for my HT. I have an idea about Tom Danleys TH-221. Have someone copied these or have drawings ? All info is interested.

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Old 21st January 2012, 01:48 PM   #2
NEO Dan is offline NEO Dan  United States
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Just go buy some if that's what you want.
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Old 21st January 2012, 02:04 PM   #3
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I think I saw a post from Ivan saying that one of these will beat 4 TH118's down below 40...
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Old 21st January 2012, 02:16 PM   #4
matsj is offline matsj  Sweden
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Neo Dan: i'm not sure about buying them in the states. They aren't cheap and shipping to Sweden costs alot.
And i want my own look at the cabinets. Not the black PA look.

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Old 21st January 2012, 02:36 PM   #5
NEO Dan is offline NEO Dan  United States
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Danley can provide cabinets in furniture grade finish.
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Old 21st January 2012, 04:11 PM   #6
Djim is offline Djim  Netherlands
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Quote:
Originally Posted by matsj View Post
Neo Dan: i'm not sure about buying them in the states. They aren't cheap and shipping to Sweden costs alot.
And i want my own look at the cabinets. Not the black PA look.

Mats
Hi Matsj,

I think Danley Sound Labs are distributed by Frederik Rosenkjærin in Denmark
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Old 21st January 2012, 10:20 PM   #7
tb46 is offline tb46  United States
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Hi matsj,

Well, at least we should offer something to read. It's not like this area has never been talked about, maybe start here:

Ricci's dual B&C 21SW152 build thread.

and go on to:

Danley's new monster... - AVS Forum

The AVS Forum thread has a great deal of information freely offered by the good people of DSL. Bye the way, they also offer extensive information on this as well as their other subs-on their website:

DANLEY | TAPPED HORN SUBWOOFER

And as you're saying "subs" I would recommend structural reinforcements for the "new place".

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Old 22nd January 2012, 05:16 PM   #8
matsj is offline matsj  Sweden
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Email is sent to Danley and i have to wait and see what they says.


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Old 23rd January 2012, 01:40 PM   #9
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I'm sorry I had it wrong. He said the DBH218LC would beat 4 TH118's down low.

The TH221 will beat 4 TH50's down low. Wow!!
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Old 23rd January 2012, 05:11 PM   #10
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Originally Posted by m R g S r View Post
I'm sorry I had it wrong. He said the DBH218LC would beat 4 TH118's down low.
The TH221 will beat 4 TH50's down low. Wow!!
Adjusted to one meter the TH-50 is rated at 124 dB at 22 Hz, 132 dB at 63 Hz.
TH-221 is 138 dB, 145 dB above 78 Hz.

The TH-221 is about 8 dB down at 20 Hz from 40 Hz, the TH-50 about 4 dB down, four TH-50 may have slightly more output at 20 Hz, while the TH-221 would have far more upper output.

There is an “economy of scale” when cabinets using 21” drivers are built as large as the TH-221 (60 x 60 x 28 inches, 58.33 cubic feet), which though just a bit larger than two TH-50, can put out similar level to four.
The 103 dB one watt one meter sensitivity with response down to 20 Hz is impressive even for a cabinet of that size.

That said, a pair of Josh Ricci’s Gjallerhorn (using an 18” driver) would be very close in output to the TH-221 using slightly less volume, 45 x45 x24 inches, 28.125 cubic feet x 2= 56.25 cubic feet.
A pair at one meter would do at least 134 dB at 20 Hz, 140.4 at 40 Hz, slightly more 20 Hz, slightly less 40 Hz than the TH-221.

Gjallerhorn

The Gjallerhorn would be a good choice if response similar to the TH-221 is desired, especially if portability is a factor.

The sketch below shows one possible fold pattern that would fit in the dimensions of the TH-221 and achieve a similar response.

Art Welter
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