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

Crossover Upgrade Suggestions
Crossover Upgrade Suggestions
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 7th July 2019, 12:36 AM   #1
kawihornet is offline kawihornet  Canada
diyAudio Member
 
Join Date: Mar 2015
Location: Cambridge, Ontario, Canada
Default Crossover Upgrade Suggestions

Thinking of replacing some of the cheaper caps etc
Please give your input and thoughts -
Thanks so much!

Picture of crossover attatched
Attached Images
File Type: jpg IMG_3747.jpg (716.5 KB, 286 views)
  Reply With Quote
Old 7th July 2019, 12:44 AM   #2
nipper1 is offline nipper1  United States
diyAudio Member
 
Join Date: Feb 2017
In my opinion, the Jantzen Superior-Z capacitor is hard to beat. It is very neutral and "clean"; meaning accurate without "coloring" the sound.
  Reply With Quote
Old 7th July 2019, 02:19 AM   #3
Scottmoose is offline Scottmoose  United Kingdom
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Quote:
Originally Posted by kawihornet View Post
Thinking of replacing some of the cheaper caps etc
Please give your input and thoughts -
Thanks so much!
OK. The first question (and it's a serious, i.e. genuine one) to ask is 'what is wrong with your existing crossover capacitors?' Or to put it another way, what are the problems or limitations they are causing / imposing upon your loudspeaker, or overall system? With those identified, you can consider what will be the best of the many possible options. It's difficult to make any recommendation worth reading without knowing what these problems are, and what the rest of the system is.
__________________
"'That'll do", comes the cry of the perfectionist down the ages.' James May -The Reassembler
www.wodendesign.com Community sites www.frugal-horn.com http://frugal-phile.com/
  Reply With Quote
Old 7th July 2019, 03:12 AM   #4
kawihornet is offline kawihornet  Canada
diyAudio Member
 
Join Date: Mar 2015
Location: Cambridge, Ontario, Canada
When the speaker is given really difficult recordings it becomes overwhelmed.
They can be slightly muddy at times as well. I would like to have a very neutral/every so slightly warm sound with lots of detail and the ability to organize difficult recordings as well.
  Reply With Quote
Old 7th July 2019, 03:53 AM   #5
Scottmoose is offline Scottmoose  United Kingdom
diyAudio Member
 
Scottmoose's Avatar
 
Join Date: Mar 2005
Location: UK
Quote:
Originally Posted by kawihornet View Post
When the speaker is given really difficult recordings it becomes overwhelmed.
They can be slightly muddy at times as well. I would like to have a very neutral/every so slightly warm sound with lots of detail and the ability to organize difficult recordings as well.
Fair enough, and I don't doubt either your summary, or your wishes, but my question stands, i.e. what is wrong with the existing capacitors, or, if you would prefer it phrased differently, how do you know they are the cause of the limitations you mention, rather than something else?

You don't mention what speaker it is, but from the PCB it appears to be a Dynaudio Special 40. That's a reasonable / well designed commercial standmount of its type, but if it's like other Dynaudios, it's likely a 1st order acoustical crossover. These are not without merit when implemented well, such as good phase response &c., but 1st order acoustical crossovers by nature also tend to push the tweeter quite hard, so on fairly demanding material, distortion can be higher than with designs using higher order slopes. It also tends to mean running a higher XO frequency, and that can result in a less even polar response, which in turn can affect tonality. So I hate to say it, and I could be completely wrong (not unusual), but I suspect your issue is simply that this particular design does not meet your requirements, and changing a couple of crossover caps isn't likely to change that.
__________________
"'That'll do", comes the cry of the perfectionist down the ages.' James May -The Reassembler
www.wodendesign.com Community sites www.frugal-horn.com http://frugal-phile.com/

Last edited by Scottmoose; 7th July 2019 at 03:57 AM.
  Reply With Quote
Old 7th July 2019, 04:10 AM   #6
kawihornet is offline kawihornet  Canada
diyAudio Member
 
Join Date: Mar 2015
Location: Cambridge, Ontario, Canada
Ya maybe... Ill try the $200 caps first and then move on to the extra 4k investment into a new speaker set lol. I have read a lot of bad reviews on the current Caps in use... so only trial and error will tell...
  Reply With Quote
Old 7th July 2019, 05:32 AM   #7
AllenB is offline AllenB  Australia
diyAudio Member
 
Join Date: Oct 2008
Quote:
Originally Posted by kawihornet View Post
Ill try the $200 caps first and then move on to the extra 4k investment into a new speaker set lol.
You may be lolling. I wouldn't have much faith in even the 4k investment if you don't understand how not to repeat this issue.
  Reply With Quote
Old 7th July 2019, 06:37 AM   #8
Draki is offline Draki  Macedonia
diyAudio Member
 
Join Date: Sep 2010
Location: Macedonia
Quote:
Originally Posted by kawihornet View Post
I have read a lot of bad reviews on the current Caps in use.
Where exactly?
  Reply With Quote
Old 7th July 2019, 07:47 AM   #9
Zuhl is offline Zuhl  England
diyAudio Member
 
Zuhl's Avatar
 
Join Date: May 2011
Location: Sheffield, UK
Better caps and resistors (don't forget them) will give a clearer, more controlled sound.


However, where are you going to put them? A Jantzen Superior (mentioned above) 15μF will take up a quarter of that PCB! That's just one component and your speakers are fairly small.


Good quality drivers deserve the best components. The fact the speaker gets good reviews without shows there is potential there.
__________________
One good thing about music, when it hits you, you feel no pain - Bob Marley

Linn Karik + Naim NAC72/HiCap/NAP250/NACA5
  Reply With Quote
Old 7th July 2019, 07:50 AM   #10
skyra is offline skyra
diyAudio Member
 
Join Date: Nov 2017
Dynaudios have their merits, -punchy, dynamic, outstanding bass- but transparency is not their strongest point. I think what you hear is mainly driver related. Bennic PP-s are not top of the world, but they are decent enough not to impose the mentionad limitations on the sound. Also usually there is a good reason usig bipolar electrolitics in certain positions.One thing is really worth to try replacing the ceramic power resistors with 5-10W MOX types.
  Reply With Quote

Reply


Crossover Upgrade SuggestionsHide 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
Upgrade cross over AutoAudio Multi-Way 10 25th November 2016 08:33 PM
Any suggestions on who to upgrade HCA-3500 Jeff Lehighvalley Solid State 0 17th May 2015 02:17 AM
DIY upgrade suggestions passive64 Subwoofers 1 2nd September 2009 09:16 AM
suggestions for transistor upgrade miner79 Parts 3 16th August 2008 09:14 AM
Suggestions for upgrade kaban Analogue Source 13 21st October 2006 01:36 PM


New To Site? Need Help?

All times are GMT. The time now is 02:51 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki