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SB Acoustics SB12PAC25-4 full range?
SB Acoustics SB12PAC25-4 full range?
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Old 1st June 2015, 04:48 PM   #11
xrk971 is offline xrk971  United States
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SB Acoustics SB12PAC25-4 full range?
SB65WBAC25-4 looks promising. It's a 2.5incher. I have one but have not tested in a FAST yet.
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Old 1st June 2015, 05:02 PM   #12
thiagomogi is offline thiagomogi  Brazil
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xrk971, any project with PVC pipe? PVC pipe is practical....PVC tube tl ??? Any idea?
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Old 1st June 2015, 05:07 PM   #13
xrk971 is offline xrk971  United States
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SB Acoustics SB12PAC25-4 full range?
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Originally Posted by thiagomogi View Post
xrk971, any project with PVC pipe? PVC pipe is practical....PVC tube tl ??? Any idea?
The Pluto by Linkwitz is perhaps one of the most well executed PVC pipe speakers around. Many good reviews on it.

PLUTO-2.1 omni-directional loudspeaker
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Old 1st June 2015, 05:15 PM   #14
thiagomogi is offline thiagomogi  Brazil
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Thank you , hope still see their PVC project

best regards
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Old 1st June 2015, 05:41 PM   #15
xrk971 is offline xrk971  United States
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SB Acoustics SB12PAC25-4 full range?
I think you can do the Pluto with the SB65WBAC25 for the tweeter and the woofer recommend by SL or similar substitute. Skip the analog XO and EQ amp PCB completely and get a miniDSP and 2x4 XO plugin and a pair of $15 TPA3116D2 boards for a total cost of $150. You can dial in the 1kHz LR4 XO in miniDSP and use the PEQ to handle the rest. You can do the Linkwitz transform on the woofer too. If you want more power for the woofer get a 200w mono IRS2092 class D amp for about $20 and smps dual rail power supply from Connextronic.

Last edited by xrk971; 1st June 2015 at 05:44 PM.
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Old 1st June 2015, 05:45 PM   #16
thiagomogi is offline thiagomogi  Brazil
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I have some amp . VSSA , SE VFET , ACA , GAINCLONE , DOZ , JLH and transconductance lm1875 : D

I lack DSP
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Old 1st June 2015, 05:49 PM   #17
sreten is offline sreten  United Kingdom
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Hi,

The Pluto has been usurped by the LXmini :
LXmini Challenge

Also see :
https://sites.google.com/site/cdenneler/home/lxc

rgds, sreten.
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Old 1st June 2015, 06:46 PM   #18
Godzilla is offline Godzilla  United States
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I seem to prefer 8" "full range" drivers over the smaller diameters. They just sound better to me.
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Old 2nd June 2015, 02:29 AM   #19
misuspita is offline misuspita  Romania
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Quote:
Originally Posted by thiagomogi View Post
More chr70 is real graphics? chn70 bad graphics
Yes, that is my curiosity too. CHR seem to have a lot of resonances and peaks/dips of 10dB cumulated, and still I read good things about them, that's why I was curious about the possibility of using the SB driver as a FR, because except of the 12kHz peak, it seems better behaved. I also don't care about directivity because I'm gonna use it as a TV speaker who has to sound good directly in front, don't care for sides.
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Old 2nd June 2015, 02:59 AM   #20
xrk971 is offline xrk971  United States
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SB Acoustics SB12PAC25-4 full range?
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Originally Posted by misuspita View Post
Yes, that is my curiosity too. CHR seem to have a lot of resonances and peaks/dips of 10dB cumulated, and still I read good things about them, that's why I was curious about the possibility of using the SB driver as a FR, because except of the 12kHz peak, it seems better behaved. I also don't care about directivity because I'm gonna use it as a TV speaker who has to sound good directly in front, don't care for sides.

More choices for drivers to look at here:

From A Subjective Blind Comparison of 3in to 5in drivers - Round 2

1. Vifa TG9FD10-8 (fiberglass cone)
2. Tang Band W4-1320SB (paper cone)
3. Peerless P830986 (aluminum cone)
4. Fostex FF105WK (paper cone)
5. ScanSpeak 10F/8424G00 (fiberglass cone)
6. Mark Audio Alpair A7.3 (silver cone) (aluminum cone)
7. AHE 3in (from Taiwan) (paper cone)

from http://www.diyaudio.com/forums/full-...e-drivers.html

8. Vifa TC9FD (3.5in paper cone 8 ohm)
9. Faital Pro 3FE22 (3in paper cone 16 ohm)
10. Dayton Audio RS100-4 (3.5in aluminum cone 4 ohm)
11. Dayton Audio RS100P-4 (3.5in paper cone 4 ohm)
12. Dayton Audio PS95-8 (3in paper cone 8 ohm)
13. MA CHN-70 (4in paper cone 8 ohm)
14. PRV 5MR450NDY (5in 'midrange' pro audio paper cone 8 ohm)

Of the above, the ScanSpeak 10F/8424, Vifa TC9FD, Vifa TG9FD, Faital Pro 3FE22r16, Peerless P830986, and Mark Audio Alpair A7.3 were among the top drivers chosen by the polls. You can listen to their soundclips and look at measured response and choose for yourself. If you want smooth response in a cost effective format, the Vifa's are hard to pass up. If cost is no object then the Scanspeak is the way to go. If you like some "air" or "shimmer" added to your music, the Peerless or Alpair 7.3 are good choices.
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