Mission 752 Freedom

sam14 · 16th April 2006, 03:06 AM

Hi all, had these for a good few years but recently the treble has become a bit splashy. Am gonna check the crossover components & upgrade them. Anybody know the crossover frequency or the Xover order or got the Xover circuit diagram? Anybody modded these, maybe changed tweeter / mid bass driver?
Cheers!

float · 16th April 2006, 12:17 PM

Hi Sam,

I can't help with details, but I think this was one of missions best designs. I wouldn't change the aerogel bass/mid, 'cos this is the reason it sounds so good in the first place!

If you look at the crossover you should find values for the tweeter cap(s) printed on them, and IMO this is where you should start modding.
Slight changes to padding resistor values could shift the balance more in line with your tastes, if necessary.

More wholesale XO changes may bring benefits, but you'd need decent measuring facilities to guarantee real improvements.

Scottmoose · 16th April 2006, 02:20 PM

Rip the crossovers out of the cabinet if you can. Place them in a wooden box (a nice cigar box is ideal) externally. Cuts down on vibrations.

hew128 · 22nd January 2011, 11:32 PM

Hi Sam,

Was wondering of the result on the 752F.

Any updates?

Thanks!

16th April 2006, 03:06 AM	#1
sam14 diyAudio Member Join Date: Jul 2004 Location: Leicester	Mission 752 Freedom Hi all, had these for a good few years but recently the treble has become a bit splashy. Am gonna check the crossover components & upgrade them. Anybody know the crossover frequency or the Xover order or got the Xover circuit diagram? Anybody modded these, maybe changed tweeter / mid bass driver? Cheers!

16th April 2006, 12:17 PM	#2
float diyAudio Member Join Date: Apr 2005 Location: Coventry,England	Hi Sam, I can't help with details, but I think this was one of missions best designs. I wouldn't change the aerogel bass/mid, 'cos this is the reason it sounds so good in the first place! If you look at the crossover you should find values for the tweeter cap(s) printed on them, and IMO this is where you should start modding. Slight changes to padding resistor values could shift the balance more in line with your tastes, if necessary. More wholesale XO changes may bring benefits, but you'd need decent measuring facilities to guarantee real improvements. __________________ I w isH i cuold typpe bettr

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16th April 2006, 02:20 PM	#3
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	Rip the crossovers out of the cabinet if you can. Place them in a wooden box (a nice cigar box is ideal) externally. Cuts down on vibrations.

22nd January 2011, 11:32 PM	#4
hew128 diyAudio Member Join Date: Jan 2006 Location: Singapore	Hi Sam, Was wondering of the result on the 752F. Any updates? Thanks!

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