XKi - X's ab initio Karlson 6th Order Bandpass - Page 122

EddieT · 23rd December 2020, 06:25 PM

I could easily do that as my felt is vinyl backed and easy to cut w/electric scissors. Testing would be subjective. I down loaded a SA app but it looks strange on the low end. The pic is with a Sony boombox playing in the kitchen and I am in the den.

EddieT · 30th December 2020, 04:10 AM

I used my K5/XKi pair to troubleshoot a Carver-Wharfdale system. We were trying to determine if his noise problem was from the receiver or the speakers. It was from the right channel Wharfdale. He was impressed at how well my little boxes performed. I had them connected to his B outputs so I could just flick from A to B for comparison.

xrk971 · 30th December 2020, 05:27 AM

The PA130-8 XKi is a slick little inexpensive speaker. Very pleasant sounding with a bass kick deeper than one thinks it should have.

Did it sound as good or better than the Wharfdale?

EddieT · 06:12 PM

Vocals were a little better on the Wharfdale because I haven't finished padding my rear chambers yet (I still haven't purchased friendlier screws for the rear panels). I thought the bass was a little better on mine but we were near field and didn't move back to the sweet spot for either. I have mine back home now and had to rework my banana plugs, now I see the advantage of premade cords like you use.

EddieT · 31st December 2020, 04:05 AM

The PA130-8 XKi really delivers on Fleetwood Mac's "Dreams", hard to believe there's no sub.

xrk971 · 31st December 2020, 04:12 AM

Nice! The PA130-8 is also excellent in an 0.53x Karlsonator.

Entas · 31st December 2020, 12:17 PM

PA130-8 delivers in MLTL too.

freddi · 11th January 2021, 07:31 AM

hey XRK971.

I have some little 6CX and believe they are close to Beta6A in spec.

Would an XKi have any advantage with such a high fs driver over a 0.44X K15?

Def_Driver ‘Beta 6A’ | Eminence 6” speaker 4.5mm xmax
Sd=129.9cm2
Fs=123Hz
Mms=11g
Qms=3.46
Qes=0.66
Re=5.18 ohm
BL=8.13TM
Le=0.43mH
Vas=3.51L

freddi · 08:55 PM

-questions when dealing with small XKi with sizable vent.

X says 17 liters total for BG20 usable to 70Hz. Not including the baffle and upper panels, but including vent and driver volumes, the total would be around 20 liters.

Is that volume adequate in hopes to reach the model's low end? What happens if the vent and driver displacements aren't included?

Does the vent at the top mitigate the cavity peak?

What would you make the internal size of this particular XKi ?

xrk971 · 17th January 2021, 12:35 AM

Sorry I have not gotten to modeling these for you yet. Will try to do it this weekend.

30th December 2020, 05:27 AM	#1213
xrk971 Got Foam? diyAudio Member Join Date: Oct 2012 Location: Metro DC (Virginia)	The PA130-8 XKi is a slick little inexpensive speaker. Very pleasant sounding with a bass kick deeper than one thinks it should have. Did it sound as good or better than the Wharfdale? __________________ XRKaudio https://www.etsy.com/shop/XRKAudio

30th December 2020, 06:09 PM	#1214
EddieT diyAudio Member Join Date: Apr 2014 Location: Mountains of WNC	Vocals were a little better on the Wharfdale because I haven't finished padding my rear chambers yet (I still haven't purchased friendlier screws for the rear panels). I thought the bass was a little better on mine but we were near field and didn't move back to the sweet spot for either. I have mine back home now and had to rework my banana plugs, now I see the advantage of premade cords like you use. Last edited by EddieT; 30th December 2020 at 06:12 PM.

31st December 2020, 04:12 AM	#1216
xrk971 Got Foam? diyAudio Member Join Date: Oct 2012 Location: Metro DC (Virginia)	Nice! The PA130-8 is also excellent in an 0.53x Karlsonator. __________________ XRKaudio https://www.etsy.com/shop/XRKAudio

15th January 2021, 08:53 PM	#1219
freddi diyAudio Member Join Date: Aug 2005	-questions when dealing with small XKi with sizable vent. X says 17 liters total for BG20 usable to 70Hz. Not including the baffle and upper panels, but including vent and driver volumes, the total would be around 20 liters. Is that volume adequate in hopes to reach the model's low end? What happens if the vent and driver displacements aren't included? Does the vent at the top mitigate the cavity peak? What would you make the internal size of this particular XKi ? Last edited by freddi; 15th January 2021 at 08:55 PM.

17th January 2021, 12:35 AM	#1220
xrk971 Got Foam? diyAudio Member Join Date: Oct 2012 Location: Metro DC (Virginia)	Sorry I have not gotten to modeling these for you yet. Will try to do it this weekend. __________________ XRKaudio https://www.etsy.com/shop/XRKAudio


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

30th December 2020, 04:10 AM	#1212
EddieT diyAudio Member Join Date: Apr 2014 Location: Mountains of WNC	I used my K5/XKi pair to troubleshoot a Carver-Wharfdale system. We were trying to determine if his noise problem was from the receiver or the speakers. It was from the right channel Wharfdale. He was impressed at how well my little boxes performed. I had them connected to his B outputs so I could just flick from A to B for comparison.

31st December 2020, 04:05 AM	#1215
EddieT diyAudio Member Join Date: Apr 2014 Location: Mountains of WNC	The PA130-8 XKi really delivers on Fleetwood Mac's "Dreams", hard to believe there's no sub.

31st December 2020, 12:17 PM	#1217
Entas diyAudio Member Join Date: Jun 2019 Location: Kretinga	PA130-8 delivers in MLTL too.

11th January 2021, 07:31 AM	#1218
freddi diyAudio Member Join Date: Aug 2005	hey XRK971. I have some little 6CX and believe they are close to Beta6A in spec. Would an XKi have any advantage with such a high fs driver over a 0.44X K15? Def_Driver ‘Beta 6A’ \| Eminence 6” speaker 4.5mm xmax Sd=129.9cm2 Fs=123Hz Mms=11g Qms=3.46 Qes=0.66 Re=5.18 ohm BL=8.13TM Le=0.43mH Vas=3.51L

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
6th order bandpass question	tinitus	Subwoofers	13	8th March 2009 07:01 PM
6th order bandpass	Chris8sirhC	Subwoofers	1	13th September 2008 08:09 PM
6th order bandpass subwoofer	Ilianh	Subwoofers	50	25th January 2003 02:40 AM
6th-order Bandpass	BAM	Subwoofers	1	24th September 2001 06:51 PM
6th order bandpass design?	SubNut	Subwoofers	3	22nd September 2001 09:48 PM

New To Site?	Need Help?
Register to Participate Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read