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

Multi-Way Conventional loudspeakers with crossovers

Open Source Monkey Box
Open Source Monkey Box
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
Reply
 
Thread Tools Search this Thread
Old 19th September 2018, 03:13 PM   #21
phase_accurate is offline phase_accurate
diyAudio Member
 
Join Date: May 2002
Location: Switzerland
Talking of Beyma 12" Drivers: The 12LX60v2 would also work nicely in that size coffin. At least according to simulations. And it doesn't cost an arm and a leg either.
I use its larger brother in a two way MTM BTW.

Regards

Charles
  Reply With Quote
Old 19th September 2018, 03:13 PM   #22
mordikai is offline mordikai  United States
diyAudio Member
 
Join Date: Nov 2005
Send a message via Yahoo to mordikai
Quote:
Originally Posted by mbrennwa View Post
Well, Fane may not sound like one of the great names. I am not particularly biased towards the Fane, but the TSP of the Sovereign 10-300SC do look like a good match for what we're after. What is it you don't like about the Fane?
stamped frame, ugly, not enough xmax for a single 10 to keep up with the Volt.
imho

Last edited by mordikai; 19th September 2018 at 03:16 PM.
  Reply With Quote
Old 19th September 2018, 03:36 PM   #23
mbrennwa is offline mbrennwa  Switzerland
diyAudio Member
 
mbrennwa's Avatar
 
Join Date: Mar 2005
Location: Zurich, Switzerland
Quote:
Originally Posted by mordikai View Post
stamped frame
Are you sure? I tend to think it's cast frame from looking at the Fane website.

Quote:
Originally Posted by mordikai View Post
ugly
I won't argue about taste.

Quote:
Originally Posted by mordikai View Post
not enough xmax for a single 10 to keep up with the Volt.
Xmax is 4.75mm. If we just want to be efficient without going LOUD, the Xmax might be fine. But I agree, this Xmax value is not great. It does have low mechanical losses though (Qms = 10.1).

Let's look at a few more woofers! Suggestions, please!

What do you guys think about the Beyma 10G40, Beyma SM-110/N and Beyma SM-112/N?
__________________
[ audioroot.net | hifibau.ch ]
  Reply With Quote
Old 19th September 2018, 03:52 PM   #24
mordikai is offline mordikai  United States
diyAudio Member
 
Join Date: Nov 2005
Send a message via Yahoo to mordikai
That woofer looks better than the one I was looking at. Apparently there is the sovereign and sovereign pro. Xmax is still limited though. I do have a bit of a bias for a 12".
  Reply With Quote
Old 19th September 2018, 05:48 PM   #25
mbrennwa is offline mbrennwa  Switzerland
diyAudio Member
 
mbrennwa's Avatar
 
Join Date: Mar 2005
Location: Zurich, Switzerland
Quote:
Originally Posted by KaffiMann View Post
mbrennwa:
The port I used for simulation is over 36cm long, not 10cm. And it's 33,1cm wide (divider in the middle for bracing) * 4cm tall, so 132,4cm2. It is not only tuning frequency that is important, but how the port behaves at tuning frequency.
Ok, I tried it with your port dimensions. The result does not look any better. Hmm.
__________________
[ audioroot.net | hifibau.ch ]
  Reply With Quote
Old 19th September 2018, 06:17 PM   #26
KaffiMann is offline KaffiMann  Norway
diyAudio Member
 
KaffiMann's Avatar
 
Join Date: Sep 2009
Location: Grua, ten minute walk from 60.258792, 10.664731
mbrennwa: That's allright, it was just a random driver, just forget the Faital completely. Did you try the Beyma SM212 from post 15?

Click the image to open in full size.
__________________
FC152
  Reply With Quote
Old 19th September 2018, 07:20 PM   #27
KaffiMann is offline KaffiMann  Norway
diyAudio Member
 
KaffiMann's Avatar
 
Join Date: Sep 2009
Location: Grua, ten minute walk from 60.258792, 10.664731
phase_accurate: The 12LX60v2 looks good on the frequency graph, but not so good on group delay and phase, by my personal criteria it is not quite as well suited as the SM212 and the SM112 (Which looks very good).
__________________
FC152
  Reply With Quote
Old 19th September 2018, 08:06 PM   #28
Audio Elite is offline Audio Elite  South Africa
diyAudio Member
 
Join Date: Sep 2007
Quote:
Originally Posted by phase_accurate View Post
Talking of Beyma 12" Drivers: The 12LX60v2 would also work nicely in that size coffin. At least according to simulations. And it doesn't cost an arm and a leg either.
I use its larger brother in a two way MTM BTW.

Regards

Charles
AvantGarde Duo XD uses two of the fabulous drivers with active amps by Pascal. They produce incredible sound!

I have used them and are powerful, detailed and can produce base with authority.

Last edited by Audio Elite; 19th September 2018 at 08:09 PM.
  Reply With Quote
Old 19th September 2018, 09:08 PM   #29
Paul Vancluysen is offline Paul Vancluysen  Belgium
diyAudio Member
 
Join Date: Mar 2009
Location: Heusden-Zolder
From my side I also did compare the proposed drivers. I have tried to realize the lowest F3 in the smallest cabinet for the best fit on a basreflex B4 alignment. For my simulation I use the R. Small transfer function.

Faital PRO 12FH530:
F3 = 44.7 Hz in a cabinet VB = 64 L and tuned at fB = 47 Hz; sensitivity = 89.4 dB full space @ 1m, 2.83 Vrms
Almost perfect fit on B4 alignment

Beyma SM212:
F3 = 45.8 Hz in a cabinet VB = 85 L and tuned at fB = 43 Hz; sensitivity = 90.5 dB full space @ 1m, 2.83 Vrms
A little more damped around fB than the B4 alignment.

Beyma 12LX60v2 :
F3 = 44.0 Hz in a cabinet VB = 52 L and tuned at fB = 45.5 Hz; sensitivity = 88.9 dB full space @ 1m, 2.83 Vrms

IMO the Beyma 12LX60v2 is the best choice to make the cabinet small with a low F3.
Beyma SM212 needs a large cabinet volume to realize a B4 alignment, but has a higher sensitivity.
Faital PRO 12FH530 is also interesting.

Till now I didn’t take into account the value of the DC resistance of the X-over coil. It increases slightly the Qts and RE of the driver system.

For other driver proposals for this project, we have to find the ones with a Qts around 0.35 - 0.40, a low Vas and a high BL. To keep F3 low in a small cabinet.

Last edited by Paul Vancluysen; 19th September 2018 at 09:28 PM.
  Reply With Quote
Old 20th September 2018, 06:24 AM   #30
mbrennwa is offline mbrennwa  Switzerland
diyAudio Member
 
mbrennwa's Avatar
 
Join Date: Mar 2005
Location: Zurich, Switzerland
Quote:
Originally Posted by Paul Vancluysen View Post
For other driver proposals for this project, we have to find the ones with a Qts around 0.35 - 0.40, a low Vas and a high BL. To keep F3 low in a small cabinet.
Look here (you can adjust the criteria).
__________________
[ audioroot.net | hifibau.ch ]
  Reply With Quote

Reply


Open Source Monkey BoxHide 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
[Open source] TINA The total open source Audiophile Player based on Beaglebone Black DragonWar PC Based 7 18th December 2016 02:31 PM
Ultimate Open Source XMOS USB-I2S: The source to end all sources. krfkeith Digital Source 4 14th June 2013 03:54 PM
Volume / Source selector - open source project ? AuroraB Analog Line Level 22 22nd September 2012 02:21 PM
Open call for suggestions on Open Source DIY Audio Design gfergy Everything Else 1 15th April 2007 07:33 AM


New To Site? Need Help?

All times are GMT. The time now is 05:51 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki