Anyone upgraded Focal Aria crossovers?

Hi!
I'm also now preparing to tune the Aria 906.
I would like to know if there is anything to know about the circled part in the picture? Will it reduce performance if I put high quality parts in it?
Does changing the binding post improve the quality of the sound?
 

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Hi!
I'm also now preparing to tune the Aria 906.
I would like to know if there is anything to know about the circled part in the picture? Will it reduce performance if I put high quality parts in it?
Does changing the binding post improve the quality of the sound?
I did not touch that air core , only replaced caps and resistors and my brother commented that these sound great now and never sounded better , clear and more dynamic.
If you could use all copper binding posts, or GR research all copper low mass version it will sound clearer in tone and more open a lot depends on rest of your system as HT receiver based system would be overkill for many of these upgrades....
 
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Hi!
I'm also now preparing to tune the Aria 906.
I would like to know if there is anything to know about the circled part in the picture? Will it reduce performance if I put high quality parts in it?
Does changing the binding post improve the quality of the sound?

For better quality you really want low tolerance values & inductors that have low DCR, resistors that have low inductance & capacitors with low ESR..

Plenty of MET/poly capacitors even the basic Mundorfs, Jantzen, Clarity cap...then you pay a bit more for the 3% tolerance versions..

Resistors, Mills 1% 12W are very good & small..

Inductors...I would suggest lower DCR & thicker wire....unfortunately its much bigger...but if you look in Jantzens list you can find them in a tight wound format like I did.

Big metal binding posts...remove them as too much extraneous metal in the signal path...

I used MC/Staubli test/measurement 4mm dia. gold plated brass plugs & sockets...


Full details & parts list to give you an idea, in my write up on my Monitor Audio speakers...

https://www.diyaudio.com/community/...eakers-2010-2015yr-model.388989/#post-7089432
 
Added cabinet bracing, upgraded internal wiring and all copper binding posts. Wow!
It must improve on clarity , soundstage separation and tonality...
I just swapped a bypass from other speakers few days ago ... and I'm shocked in improvement.
From a tweeter circuit on B&W 686 monitors using just first order of just a single cap on the tweeter 4.3uf poly looking like some generic cap.
I had Mundorf Supreme 3.9uf with bypass of 0.22 Audyn True Copper and 0.01uf Mundorf Silver Oil .... It sounded much better than stock , than I just removed 0.22uf Audyn for a swap with a Miflex 0.33uf Copper Foil and WOW , soundstage is now so much deeper and wider with better clarity , detail , harmonics and transient attack and decay after maybe 10hrs of break-in time , stereo effect is better as well.
Very easy to listen and non fatiguing sound , it cleaned lot of the B&W hot tweeter that was there on stock Poly Cap and now is so smooth and almost warm sounding ....
I also use internal Cardas 15ga in Teflon wire and no Xover board, caps and soldered to back of terminal , direct with Wonder Solder.
Detail and imaging as super this way , such uncomplicated Xover was the reason I bought these with all of it imperfections far from flat response but I do get amazing resolution and it really sound very good , easy to listen and no annoyance from non flat response .

Stunning Cap as bypass , Miflex KPCU01 .
Highly recommended !
 
Yes, clarity! One speaker completed. A/B comparison and even my wife commented on the improvement. Internal wiring was upgraded to Kimber 15.5 . Plus side wired directly to the in-series resistor (tweeter) and also the inductor (mid/lows).

I’m surprised you get a noticeable improvement by replacing the Audyn copper. Could much of it be due to the larger Miflex capacitance value?
 
Yes, clarity! One speaker completed. A/B comparison and even my wife commented on the improvement. Internal wiring was upgraded to Kimber 15.5 . Plus side wired directly to the in-series resistor (tweeter) and also the inductor (mid/lows).

I’m surprised you get a noticeable improvement by replacing the Audyn copper. Could much of it be due to the larger Miflex capacitance value?
I think good quality copper on internal wiring may warm up lively tweeters tonality in case of Aria or B&W where out of the box both are on the brighter side ....

Yes Audyn copper was almost muffled in comparison to Miflex where speakers disappeared and soundstage detail is stunning , room acoustics from the recording and overall presentation is so much better .
I was also shocked .
uf value difference is very low and stock cap was 4.3uf with 10% tolerance , now I cap used have tighter tolerance and even with Audyn in place it was well within tolerance ....
I did read about it from someone else comparing Audyn Copper Foil to Miflex as bypass on a speaker and had very similar observations...
These Miflex , even 0.1uf KCPU series can be bought for 25usd and are sooo worth it .
 
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I’m super happy with .01uf Deulund copper foil which is roughly the same price as the Miflex. Down the road I could see myself swapping it out for the Deulund tinned copper foil at twice the price. The journey continues.
Oh yes Deulund is a superb cap , rated very highly . I think little higher value of the bypass helps to clear up the midrange and lower treble better than just 0.01uf that works it's magic at highest frequencies ...
Have fun with it .
 
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Hi, everyone!
By the time I received the reply, the parts were already ordered.
I have ordered these, but they will not arrive until early September.
SUPERIOR Z-CAP 2,70ΜF 800VDC 2%
Jantzen litze wire wax coils 1,2 mh 0,385Ω 1,4mm/awg15
ALUMEN Z-CAP 5,60
JANTZEN SUPERES 10W 4,70Ω
JANTZEN SUPERES 10W 1,20Ω
Same value as before.
Do you think this will be ok?

 
Hi, everyone!
By the time I received the reply, the parts were already ordered.
I have ordered these, but they will not arrive until early September.
SUPERIOR Z-CAP 2,70ΜF 800VDC 2%
Jantzen litze wire wax coils 1,2 mh 0,385Ω 1,4mm/awg15
ALUMEN Z-CAP 5,60
JANTZEN SUPERES 10W 4,70Ω
JANTZEN SUPERES 10W 1,20Ω
Same value as before.
Do you think this will be ok?

If the values are correct than it is ok, Jantzen is fine , I would highly recommend adding a bypass or experiment with 0.1uf and 0.01uf like Miflex KCPU .... these may compliment Alumen Z Cap and lift it's performance with better mid and high freq filtration so more air , space cues, harmonics , deeper and wider soundstage, better more defined stereo presence, more precision will show up in the sound.
You can start without it , than after 100hrs add 0.1uf for 100hrs and than if you like the difference add 0.01uf of high quality ...

Have fun
 
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Can I replace Miflex with one of the products on the linked website? My buddy suggested the Silver Z cup for the Focal, but I didn't dare lest the tweeter get too loud/strong.
https://sonopart.hu/manufacturers
I can see you are in Hungary , Miflex can be bought from TME.EU as they are official authorized dealer and has these in stock.
I think Focal tweeter is even brighter and more in your face that in B&W speakers so Miflex calms down that nature by great filtering thru copper foil and it opens up the soundstage and evens out front and back of soundstage really well, also tube like warm harmonics , decay and transients , like the best cap there at 1/3 of the price.
 
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I can see you are in Hungary , Miflex can be bought from TME.EU as they are official authorized dealer and has these in stock.
I think Focal tweeter is even brighter and more in your face that in B&W speakers so Miflex calms down that nature by great filtering thru copper foil and it opens up the soundstage and evens out front and back of soundstage really well, also tube like warm harmonics , decay and transients , like the best cap there at 1/3 of the price.
Just to add that silver usually add brightness and edge and can push image more forward and for Focal it may not be a good match... It is opposite to copper that sounds warmer, fuller , richer is harmonics and can be a better complement to Focal tweeter and will balance it out . I think that tonal balance is a key in what you want to achieve with such speaker ...
 
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Hey aUDIOhl, where did you end up with 906 Speaker placement?

I finished experimenting as per the audiophiliac recommendation. Moved speakers away from front wall but wasn’t happy with tonality and sound became fatiguing. Progressively moved speakers closer to front wall and ended up where I started. Nine inches from the front wall and I enjoy non fatiguing music for hours.