Danley TH-221 drawings ?

[matsj]

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.

mats

[NEO Dan]

Just go buy some if that's what you want.

[m R g S r]

I think I saw a post from Ivan saying that one of these will beat 4 TH118's down below 40...

[matsj]

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

[NEO Dan]

Danley can provide cabinets in furniture grade finish.

[Djim]

Originally Posted by matsj

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

[tb46]

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".

Regards,

[matsj]

Email is sent to Danley and i have to wait and see what they says.


mats

[m R g S r]

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!!

[weltersys]

Originally Posted by m R g S r

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