Speaker kit experiments - an archive of the Jäger Speaker development

Dan,

When you say "all our amp mmodels", do you also mean some legacy models like Paramour  II 45 and S.e.x. 2.0/2.1?

I'm not likely a candidate, but one never knows.

Really enjoying all the new things you guys are coming up with -- continuing the bottlehead tradition and improving with  each new generation. Congratulations!

-- Jim
 
Really excited about this project.  I was at your listening room and saw the work in progress. I am planning on my next build to be a set of speakers.  Really looking forward to how these turn out. Just waiting to give you my money ;)
 
Got some great news today, that a test cabinet has been drawn up. This will be CNC'd from an inexpensive material to verify the basic dimensions and the fastening method that I hope to use.
 
Hoping to see the first attempt at CNCing a trial cabinet design soon.
 
We may have one to look at. A test cabinet was made and should be on its way to me in the next week.
 
Test cabinet is together and we are starting to get some measurements. I'll post a pic later today.
 
Obviously pics didn't happen yesterday. Hope to get some done today.
 
This is what I am picturing, "It's Alive!"

young-frankenstein.jpg

 
Here is a pic of the proof of concept prototype. This is not the final box. We have not decided on a cabinet material yet. There are many details yet to work out. It's about 4 feet tall, about 9 inches wide and about 15 inches deep. My hope is that it will be something that can ship in a flat pack and be assembled using glue and internal cam locks rather than the external ones you see in the photo. This cabinet glued up nicely and seems nice and rigid, with a few horizontal planar braces stiffening the panels. I will be continuing to get some measurements today. We are using a crossover design that was worked out for a smaller test box and it needs some adjustments for this version. 
 

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Awesome! I think these would be great in my living room. 

A couple of questions:

Will these work okay near a wall, or are they designed to be out in the room?

Also, am I correct in assuming driver protection (grills or the like) will be up to the individual builder?

I hope this project works out as a product, they are looking near perfect for my needs!
 
It's still very early in the design development so I don't have enough info to answer questions about how it's going to work in anyone's room. So far I am getting pretty consistent measurements moving the cabinet around in my listening room. How well that applies to your question I can't say, but it's what I know for now.

Part of the process in this is learning the room issues so we know what in the curves we measure is actual speaker response and what might be some quirk of the room. I hope to know a lot more by the meeting on the 15th.
 
as i sit here listening to my beloved Straight 8s, i think you're going to have
to do a pretty good job to better your previous WORK! :)

 

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Well, thank you! So far I can say that the new speaker goes about half an octave deeper, and has better integration of the woofers and tweeter (we have learned a few things in 16 years...), and I suspect when I get two running I will be able to say it images better. I had a nice breakthrough on the tweeter on Friday, coming up with some horn damping changes that really had a positive impact. Then yesterday I removed a borrowed speaker cable I use on the tweeters of my reference setup, and replaced it with some simple cables made of CAT5 cable. Up to that point the bass had seemed a bit light (reminding me of why the borrowed cable was doing tweeter duty). The CAT5 seems to have done a nice job of bringing up the bass into better balance with the midrange. I think we will include enough CAT5 in the kit so that one can make a pair of cables along with wiring the drivers. Was hoping to show it off tomorrow, but it looks like we will be cancelling the meet due to the impending storm. POOP.
 
It's hard to believe that much time has gone by!

Looking forward to seeing (and hearing) what you come up with now.
Future listeners (and builders) can rest assured that what they build
will be with them for many years of wonderful sound :)
 
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