Its problematic with a sharp cavity peak and resonance- it could have used a stub tuned around 290Hz. (browser add-on EQ8 parametric EQ can be used to check where problems lay) I'm not sure yet how it behaves with aperture pulled. As is it would probably work for an electronic drum speaker.
Any ideas for a pipe stub to put in the rear chamber?
Any ideas for a pipe stub to put in the rear chamber?
Hi!
I would love to build an XKi as a box for electric bass guitar.
I am a total newbie to the whole topic but do have some carpenter-skills and tools...
Already started a new thread in the fullrange-forum, maybe its better to post it here(?)
I do already have the speaker - its an OBERTON 10B200 - 10"
https://oberton.com/en/?option=com_content&view=article&id=180:10b200&catid=49:ferrite-loudspeakers
I was told that for e-bass the the cabinets are tuned around 60Hz when vented.
Is there any chance that one of you guys could help me out designing that bewished cabinet?
Kind regards - Flo
I would love to build an XKi as a box for electric bass guitar.
I am a total newbie to the whole topic but do have some carpenter-skills and tools...
Already started a new thread in the fullrange-forum, maybe its better to post it here(?)
I do already have the speaker - its an OBERTON 10B200 - 10"
https://oberton.com/en/?option=com_content&view=article&id=180:10b200&catid=49:ferrite-loudspeakers
I was told that for e-bass the the cabinets are tuned around 60Hz when vented.
Is there any chance that one of you guys could help me out designing that bewished cabinet?
Kind regards - Flo
I have couple of spare PA130-8 drivers. My Yule project is to build a pair of XKi speakers with them. I'd like to try and optimise the dimensions. I notice that the manual for the legacy version of Akabak 2.1 has a simulation of a 6th order bandpass enclosure. Shouldn't be too difficult to modify for the XKi design. It incorporates acoustic masses at the bends and end corrections for the ducts. Interestingly, it models the front and rear chambers using multiple ducts rather than single enclosures. Elsewhere I have found that the end correction for a duct terminating into an infinite baffle (rather than free air) is +0.425 x hydraulic diameter. For a circular duct, the hydraulic diameter is simply the actual diameter. Generally, the hydraulic diameter = 4 x cross sectional area / perimeter.
That’s similar to the Karlsonator model I have in Akabak with the variable front aperture. The trick is to make the aperture variable and allow some direct radiation to pass through.
Hi,
Does anyone have a CNC file or other drawing for the XKi W5-2143 ? I have a few of these drivers I'd like to put to good use.
The only drawing of the enclosure I have found is a hand made drawing. Is there a more official dwg somewhere ?
Thanks in advance.
Eric
Does anyone have a CNC file or other drawing for the XKi W5-2143 ? I have a few of these drivers I'd like to put to good use.
The only drawing of the enclosure I have found is a hand made drawing. Is there a more official dwg somewhere ?
Thanks in advance.
Eric
@doug01n made a nice model on post 1340. Perhaps he can share the file?
You can develop the plans based on this written description from an earlier post:
For the W5-2143 XKi, make the box 10in deep x 8in wide x 12in tall (all inside dims) with a 8in wide x 0.5in gap vent that is 5.75in long. The front driver mount panel setback is 4in deep to provide a 20% front chamber volume and 80% rear chamber volume. Make the wings following usual K style with the edges of K-aperture curves just touching the driver surround when viewed from the front. Line all surfaces adjacent to back of driver with felt, as well as front chamber sides and back side of K aperture to reduce first reflections.
You can develop the plans based on this written description from an earlier post:
For the W5-2143 XKi, make the box 10in deep x 8in wide x 12in tall (all inside dims) with a 8in wide x 0.5in gap vent that is 5.75in long. The front driver mount panel setback is 4in deep to provide a 20% front chamber volume and 80% rear chamber volume. Make the wings following usual K style with the edges of K-aperture curves just touching the driver surround when viewed from the front. Line all surfaces adjacent to back of driver with felt, as well as front chamber sides and back side of K aperture to reduce first reflections.
Hello,
I just started thinking would SB Acoustics SB20FRPC30-8 work in XKi (or Karlsonator) and how low would it go? What would be the best size for the box? The general box recommendation for this driver seems to be TQWT.
Have someone tried this before or do someone have recommendations where to start? I tried searching threads which handles this driver with no luck. At least, I understood that Visaton BG20 would work in XKi. According to some message SB20FRPC30 has quite similar specs, hasn´t it?
SB20FRPC30-8:
Fs 39.4 Hz
Qms 10.1
Qes 0.47
Qts 0.45
Vas 66.3 liters
I just started thinking would SB Acoustics SB20FRPC30-8 work in XKi (or Karlsonator) and how low would it go? What would be the best size for the box? The general box recommendation for this driver seems to be TQWT.
Have someone tried this before or do someone have recommendations where to start? I tried searching threads which handles this driver with no luck. At least, I understood that Visaton BG20 would work in XKi. According to some message SB20FRPC30 has quite similar specs, hasn´t it?
SB20FRPC30-8:
Fs 39.4 Hz
Qms 10.1
Qes 0.47
Qts 0.45
Vas 66.3 liters