Go Back   Home > Forums > > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Planet 10 hifi Home of the Frugal-phile™ - Planet 10 HiFi

Reply
 
Thread Tools Search this Thread
Old 10th October 2016, 05:24 PM   #321
Bill poster is offline Bill poster  Thailand
diyAudio Member
 
Bill poster's Avatar
 
Join Date: Jun 2008
Location: Bangkok/London
Tempting to try a 12PW / 6P combo
  Reply With Quote
Old 10th October 2016, 05:29 PM   #322
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Alpair 7P & Alpair 12PW combination.
Yes. Too many projects, too little time :^)

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 14th October 2016, 05:36 AM   #323
silverhairbp is offline silverhairbp  United States
diyAudio Member
 
Join Date: Feb 2011
Using an A10P with a 1st order high pass crossover at 400hz, is there any reasonable dynamic limitation for home use?

In such an application, is it reasonable to expect long-term durability of the A10 in "normal" use without sonic degradation?
  Reply With Quote
Old 14th October 2016, 05:38 AM   #324
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Alpair 7P & Alpair 12PW combination.
Yes, yes (i’d guess).

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 14th October 2016, 05:44 AM   #325
silverhairbp is offline silverhairbp  United States
diyAudio Member
 
Join Date: Feb 2011
Nobody would know more than you, Dave. That's why I asked.

I don't abuse systems, but, as you know, I have not had the best of luck with A10Ms. I'm hoping the paper cones will not break up as bad as the metal cones.
  Reply With Quote
Old 25th March 2018, 02:12 PM   #326
mikejennens is offline mikejennens  United States
This speaker DIY thing, it's pretty addicting!
diyAudio Member
 
mikejennens's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
Alpair 7P & Alpair 12PW combination.
Quote:
Originally Posted by Bob Brines View Post
The A7P and the A12PW sure look like candidates for as 1st order series XO. Pretty much pick your XO point anywhere for ~200Hz to 5kHz. IMO best choices seem to be at the baffle step, which the A12PW looks to take care of on its own, or 3-5kHz where the A12PW starts to go away. The problem with the high XO is going to be dispersion (maybe, since we don't have off-axis plots yet). The problem with the low XO is it wastes the bulk of the range of a very smooth midrange driver.

So, back to IMO. The A12PW looks to me to be a super choice for a wide range mid in a 3-way with a real woofer below, say, 100-150Hz and a real tweeter in a wave guide above 5kHz or so. The A7P is pretty much a drop-in for the A7.3. You get the difference in sound of the two cone materials, which I won't be able to comment on for 2-3 months after Madisound sends me the drivers.

Here's my logic on not using the A12PW in a FAST implementation. Chest thumping takes 85dB @ 80Hz at the listening chair. I have discovered this by experimentation. Any less volume, no thump. Now Mark has been very straight forward advertising the A12PW as a light weight driver. It's not going to survive as the bottom end driver at a frat party. So I will be crossing my FAST to a pair of 12" heavy duty woofers. Those of you who know my listening habits know I would never spend any time listening at over 75dB average for any time, but demos are demos and shows are shows. (BTW, young'ns, if you are listening at chest-thumping levels, you are destroying your ears. I am 70 years old. I never listened to rock and high levers or whet to concerts and I can still hear above 12kHz. You will never get that chance.)

The A7P will go straight into my little folded TL. I never did a BR for the A7.3, and I have no interest in something like that. I do think that the A7P might do well in a small stand mounted BVR with F10 around 50Hz or so. I might give that a try.

Bob
Can anyone suggest a woofer that would offer the "chest thump" and work well in place of the 12PW for this combination? Bob mentions a pair of 12 inch woofers, but no specifics. I was thinking of the Dayton RS-225 (I know, it's a 10 inch, but it's a starting point...), but I don't know what the crossover would need to be.
Unfortunately, I don't have the design acumen of many of you, so I have come to depend on your generous sharing to build my speakers.
Thanks,
Mike
__________________
Jolida SJ502A, Squeezebox Touch, Paul Carmody's Sunflowers, Jeff Bagby's Continuums; Planet 10 HiFi's MarkAudio A 7.3 Frugalhorns and MarkAudio CHP-70s, Nola Brio Clones with a Voxel Sub and a bunch of others...
  Reply With Quote
Old 25th March 2018, 02:21 PM   #327
Bill poster is offline Bill poster  Thailand
diyAudio Member
 
Bill poster's Avatar
 
Join Date: Jun 2008
Location: Bangkok/London
a pair of Dayton ES180ti's?
  Reply With Quote
Old 25th March 2018, 02:47 PM   #328
mikejennens is offline mikejennens  United States
This speaker DIY thing, it's pretty addicting!
diyAudio Member
 
mikejennens's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
Alpair 7P & Alpair 12PW combination.
Quote:
Originally Posted by Bill poster View Post
a pair of Dayton ES180ti's?
Thanks Bill, that looks interesting.
__________________
Jolida SJ502A, Squeezebox Touch, Paul Carmody's Sunflowers, Jeff Bagby's Continuums; Planet 10 HiFi's MarkAudio A 7.3 Frugalhorns and MarkAudio CHP-70s, Nola Brio Clones with a Voxel Sub and a bunch of others...
  Reply With Quote
Old 25th March 2018, 02:50 PM   #329
Bill poster is offline Bill poster  Thailand
diyAudio Member
 
Bill poster's Avatar
 
Join Date: Jun 2008
Location: Bangkok/London
maybe not a true 'chest thump', but they dig deep, low 30s
  Reply With Quote
Old 25th March 2018, 02:58 PM   #330
mikejennens is offline mikejennens  United States
This speaker DIY thing, it's pretty addicting!
diyAudio Member
 
mikejennens's Avatar
 
Join Date: Feb 2008
Location: Bismarck, ND
Alpair 7P & Alpair 12PW combination.
Quote:
Originally Posted by mikejennens View Post
Can anyone suggest a woofer that would offer the "chest thump" and work well in place of the 12PW for this combination? Bob mentions a pair of 12 inch woofers, but no specifics. I was thinking of the Dayton RS-225 (I know, it's a 10 inch, but it's a starting point...), but I don't know what the crossover would need to be.
Unfortunately, I don't have the design acumen of many of you, so I have come to depend on your generous sharing to build my speakers.
Thanks,
Mike
Oops, RS-270....
__________________
Jolida SJ502A, Squeezebox Touch, Paul Carmody's Sunflowers, Jeff Bagby's Continuums; Planet 10 HiFi's MarkAudio A 7.3 Frugalhorns and MarkAudio CHP-70s, Nola Brio Clones with a Voxel Sub and a bunch of others...
  Reply With Quote

Reply


Alpair 7P & Alpair 12PW combination.Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Mark audio alpair 7p vs alpair 7.3 sarathssca Full Range 157 21st March 2016 02:24 PM
Is this material suitable for damping an alpair 7P /12PW cabinet? timpert Planet 10 hifi 5 23rd May 2015 04:28 AM
Alpair 7P directivity measurements tomchr Full Range 26 1st February 2015 09:37 PM


New To Site? Need Help?

All times are GMT. The time now is 06:47 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki