Welcome, Guest. Please Login or Register
Decware Audio Forums
08/28/14 at 00:05:45


Pages: 1
Send Topic Print
Dimensions of orig. Imperials, Decware Imps, mine? (Read 2597 times)
tubino
Senior Member
***




Posts: 96
Dimensions of orig. Imperials, Decware Imps, mine?
10/24/07 at 17:15:47
 
Hi, I'm trying to understand how many varieties of Imps there are.  I have a pair of homebrews made according to these plans. with outer dimensions of 60"h x 36"w x 24" deep:



But I see much larger ones, in plans anyway. So what other "recognized" sizes are there?  Does anyone know the horn length on one illustrated above?  Around 7'?  I'm rough-figuring 2' to the back, 4' down, then 1' out, = 7 feet.

If you want a larger copy of those drawings, use this:
http://tubino.smugmug.com/photos/212422188-X3.jpg
Back to top
 
 
  IP Logged
tubino
Senior Member
***




Posts: 96
Re: Dimensions of orig. Imperials, Decware Imps, m
Reply #1 - 11/01/07 at 02:33:44
 
Okay, a week later, I realize what's up.  When Steve Deckert refers to 1956 Jensen Imperial plans that he updated/corrected/improved, he's talking about essentially the SAME PLANS as mine were made from. The actual size of mine are 62" H x 37.5" w x ~25" d.   For the first time I feel confident what what you all are describing with your Decware Imperials is only different from mine in having additional bracing.

Which means that what you all have learned about yours generally applies to mine, and vice versa.  

And this is very interesting.  I have tried 4 sets of drivers in mine:

Tannoy 15", probably 3808 (borrowed from  a friend) with their orig crossovers
Tannoy 15", probably 3838, biamped
Tannoy 15" Monitor Golds with orig. crossovers

JBL E130 (tried one last night)  
I thought the JBLs were exactly what these wanted: light cone, huge magnet, low Qts (about 0.2), Fs about 40, very efficient (105). But somehow they didn't do nearly as well as the Monitor Golds in loading the horn below 40hz. Go figure.

I think the Monitor Golds are staying in there. They are the reference to be bested.  They just sound GREAT in there.
Back to top
 
 
  IP Logged
Pages: 1
Send Topic Print