Active crossover for my MG2.5's?

ricksmastermix · 31st March 2011, 03:40 AM

I'm interested in building active x-overs for my Magnepan MG2.5's. Unfortunately, I don't have the owners manual and don't know the factory crossover frequecies, slopes, etc.

Can anyone assist me with this information? Or, has anyone done this project, already?

Thanks.

Rick

geraldfryjr · 31st March 2011, 09:53 PM

With google search you can find just about anything you want or need. jer

ricksmastermix · 1st April 2011, 12:24 AM

Thanks. It looks like 12 dB/octave @ 1KHz. This should be a simple circuit to design.

geraldfryjr · 1st April 2011, 01:28 AM

Your welcome ,yes thats what I gather.
It can be verified by the component values and measuring the resistance values on the speakers voice coils since they are not listed in the schematic. jer

gootee · 2nd April 2011, 09:03 PM

Here's where I found information about improving Magnepans'
performance (crossover circuits, et al):

MUG Tweaks

And here's the Planar Speaker Asylum section of the Audio
Asylum discussion boards website(Magnepan Users Group, aka
MUG, section, I'm guessing) :

The Planar Speaker Asylum

tcnicholas · 8th June 2011, 10:30 PM

Ricksmastermix:
I just purchased a set of factory rebuilt MG2.5R's and will be doing upgrades along the way. I was first thinking of rebuilding the internal cross overs with upgraded parts among other mods. Let me know what you find out?
Tom

31st March 2011, 03:40 AM	#1
ricksmastermix diyAudio Member Join Date: Nov 2010 Location: NE Georgia	Active crossover for my MG2.5's? I'm interested in building active x-overs for my Magnepan MG2.5's. Unfortunately, I don't have the owners manual and don't know the factory crossover frequecies, slopes, etc. Can anyone assist me with this information? Or, has anyone done this project, already? Thanks. Rick

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1st April 2011, 12:24 AM	#3
ricksmastermix diyAudio Member Join Date: Nov 2010 Location: NE Georgia	Thanks. It looks like 12 dB/octave @ 1KHz. This should be a simple circuit to design.

1st April 2011, 01:28 AM	#4
geraldfryjr diyAudio Member Join Date: Feb 2008 Location: Jackson,michigan	Your welcome ,yes thats what I gather. It can be verified by the component values and measuring the resistance values on the speakers voice coils since they are not listed in the schematic. jer

2nd April 2011, 09:03 PM	#5
gootee diyAudio Member Join Date: Nov 2006 Location: Indiana Blog Entries: 1	Here's where I found information about improving Magnepans' performance (crossover circuits, et al): MUG Tweaks And here's the Planar Speaker Asylum section of the Audio Asylum discussion boards website(Magnepan Users Group, aka MUG, section, I'm guessing) : The Planar Speaker Asylum

8th June 2011, 10:30 PM	#6
tcnicholas diyAudio Member Join Date: May 2011	Ricksmastermix: I just purchased a set of factory rebuilt MG2.5R's and will be doing upgrades along the way. I was first thinking of rebuilding the internal cross overs with upgraded parts among other mods. Let me know what you find out? Tom

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