I goofed on multiplying - lol - it would be 7 inches deep if 8 inches wide
Thanks for the help and info!
Install a virtual machine and install Win XP in that. Then install Akabak in XP.
I really hope someone actually makes a Fane 12-250TC or 15-400TC in a Karlsonator. That would be something special.
I'm tempted. I have the drivers.I really hope someone actually makes a Fane 12-250TC or 15-400TC in a Karlsonator. That would be something special.
Could the interior panels be made from foam board?
I really hope someone actually makes a Fane 12-250TC or 15-400TC in a Karlsonator. That would be something special.
I may be looking at a build using them if our tax return is substantial enough this year. It's a shame these drivers aren't more common in the US.
Yes, use 1/2in XPS foam panels internally. The board where driver mounts has to be bonded to 3/16in plywood to support weight of driver.
Hi,
I have been reading this thread with interest for some time, since my last project here:
TABAQ with FaitalPro 3FE22
For this project, my stated aim was to find a design with a reasonably priced FR driver that was small, but yielded a good overall response, and would be built simply with free chipboard material I have access to. The TABAQ was a no-brainer for this, and the project worked well, I have built two sets so far, with more to follow.
However, I notice that the mini-karlsonator has been built with the same driver I chose, the 3FE25 (I started with the 3FE22 but found the 25 worked just as well, and is cheaper), and I see that the enclosure is even smaller than the folded TABAQ design, so I am interested to have a go at building a pair.
As I understand it, the 3FE25 works well in the 0.4x scale version, is the correct drawing the one at post 552? I guess with the modifications in post 556?
I see that XRK prefers the 16ohm version of the 3FE25, will the 8 ohm version perform OK in this enclosure as well? Any advice is appreciated, and I just might post a Solidworks model of that enclosure once I have it clear...
I have been reading this thread with interest for some time, since my last project here:
TABAQ with FaitalPro 3FE22
For this project, my stated aim was to find a design with a reasonably priced FR driver that was small, but yielded a good overall response, and would be built simply with free chipboard material I have access to. The TABAQ was a no-brainer for this, and the project worked well, I have built two sets so far, with more to follow.
However, I notice that the mini-karlsonator has been built with the same driver I chose, the 3FE25 (I started with the 3FE22 but found the 25 worked just as well, and is cheaper), and I see that the enclosure is even smaller than the folded TABAQ design, so I am interested to have a go at building a pair.
As I understand it, the 3FE25 works well in the 0.4x scale version, is the correct drawing the one at post 552? I guess with the modifications in post 556?
I see that XRK prefers the 16ohm version of the 3FE25, will the 8 ohm version perform OK in this enclosure as well? Any advice is appreciated, and I just might post a Solidworks model of that enclosure once I have it clear...
I'd say that the TABAQ would extract a bit more bass authority,
but the mini-k's would make a smaller enclosure.
Depending on one's needs.
but the mini-k's would make a smaller enclosure.
Depending on one's needs.
From what I was seeing the 0.4x is less then 7" W, how is a 8" to fit that? Was I seeing the wrong post.
If you wanted an eight inch driver Karlsonator, here's its plan by daddy of the Karlsonator, GregB
plus its response with Visaton's BG20 outdoors in a field:
I think Karlsonator12 only had lining of its stub for these graphs. Maybe the same for Karlsonator8 (?)
Karlsonator8's bulk is pretty close to that of John Karlson's K12 but Karlsonator8 is tuned ~41Hz which is
about a half octave below K12's nominal 62Hz.
[BG20 in Karlsonator8 vs BG20 in Karlsonator12
The rolloff at the top
is just from the mic not being dead on the driver's center axis.
I wonder which 8 inch fullrange which extend high would be best for a Karlsonator8 ?
XRK971 "XLi" with 8 inch is something I want to try.
Response outdoors in a field
At 1/12 octave Karlsonator12 with no fill in the stub shows some dips
Karlsonator8 plan
plus its response with Visaton's BG20 outdoors in a field:
I think Karlsonator12 only had lining of its stub for these graphs. Maybe the same for Karlsonator8 (?)
Karlsonator8's bulk is pretty close to that of John Karlson's K12 but Karlsonator8 is tuned ~41Hz which is
about a half octave below K12's nominal 62Hz.
[BG20 in Karlsonator8 vs BG20 in Karlsonator12
The rolloff at the top
is just from the mic not being dead on the driver's center axis.
I wonder which 8 inch fullrange which extend high would be best for a Karlsonator8 ?
XRK971 "XLi" with 8 inch is something I want to try.
Response outdoors in a field
At 1/12 octave Karlsonator12 with no fill in the stub shows some dips
Karlsonator8 plan
Last edited:
If you wanted an eight inch driver Karlsonator, here's its plan by daddy of the Karlsonator, GregB
plus its response with Visaton's BG20 outdoors in a field:
I think Karlsonator12 only had lining of its stub for these graphs. Maybe the same for Karlsonator8 (?)
Karlsonator8's bulk is pretty close to that of John Karlson's K12 but Karlsonator8 is tuned ~41Hz which is
about a half octave below K12's nominal 62Hz.
[BG20 in Karlsonator8 vs BG20 in Karlsonator12
The rolloff at the top
is just from the mic not being dead on the driver's center axis.
I wonder which 8 inch fullrange which extend high would be best for a Karlsonator8 ?
XRK971 "XLi" with 8 inch is something I want to try.
Response outdoors in a field
At 1/12 octave Karlsonator12 with no fill in the stub shows some dips
Karlsonator8 plan
THis is awesome thanks for the post- I was considering one these with 8" pa Mid and have HF as a horn on top- but i think of dumb stuff all the time lol-
I've used numerous horns with Karlson cabinets including a CTS KSN1142 piezo on a 3" x 15" horn with stepup transformer/zobel/highpass and trap on top of "K10" size, Gollehon horns, Altec horns, a 30 inch wide radial horn.
Which PA 8 mid? Karlsonator8 is tuned ~41Hz so you might want another K-box alignment.
Which PA 8 mid? Karlsonator8 is tuned ~41Hz so you might want another K-box alignment.
Polyester wool vs eraser scrub pads
I used to fill the very inside chamber of my 0.53 k with polyester wool.
As dense as possible at top going less dense towards the woofers.
Now I'm back at the hobby and opened the wooden k to change a thing or two.
I wonder if it makes sense to glue eraser scrub pads all up the inner chamber and add polyester wool where it fits.
Back in this forum I recognize how rusty my English became - please apologize!
I used to fill the very inside chamber of my 0.53 k with polyester wool.
As dense as possible at top going less dense towards the woofers.
Now I'm back at the hobby and opened the wooden k to change a thing or two.
I wonder if it makes sense to glue eraser scrub pads all up the inner chamber and add polyester wool where it fits.
Back in this forum I recognize how rusty my English became - please apologize!
Not sure yet- I have a few spare TF0818- sitting in the basement I can give them a try.
The melamine scrubber magic eraser pads have a dense nano reticulated structure that really absorbs pressure waves well. Superior or polyester wool. Great to to line speaker walls with. You can still use the wool in parts where you want just a little damping.
