Old Saba crossover

Jump to Latest
A

andreib18

Member
Joined 2020
Hello guys! I’m having a pair of vintage Saba qx30k that I like very much ,for close listening ,paired with an Cyrus one and I was thinking , being that old should I rebuild the crossover? Also I have little idea on crossover design and you migh tell me what parts do I need.thank you!

IMG_0789.png
 
Last edited by a moderator:
Galu

Galu

Member
Joined 2018
1713556120225.png


As rayma has said, the 15 uF capacitors are likely to be bipolar electrolytic types and would benefit from replacement.

Add your country of origin and we will be better placed to suggest a supplier of suitable replacements.

Here's an example of what you need (UK supplier): https://wilmslowaudio.co.uk/mundorf...pacitors/15-fd-ecap100-electrolytic-capacitor

The inductors (L) will not require to be replaced if your speakers are currently working satisfactorily.
 
P

PeteMcK

Member
Joined 2002
The symmetry of the xover components in the tweeter & woofer branches suggests that it's a 'textbook' design, rather than one based on measurementts of the drivers. However, if it sounds good after replacing the electrolytics, I'd leave it that way.
 
  • Like
Reactions: 1 user
A

andreib18

Member
Joined 2020
Galu said:
View attachment 1300921

As rayma has said, the 15 uF capacitors are likely to be bipolar electrolytic types and would benefit from replacement.

Add your country of origin and we will be better placed to suggest a supplier of suitable replacements.

Here's an example of what you need (UK supplier): https://wilmslowaudio.co.uk/mundorf...pacitors/15-fd-ecap100-electrolytic-capacitor

The inductors (L) will not require to be replaced if your speakers are currently working satisfactorily.
Click to expand...
I leave in România,I can order on farnell or digikey
 
Michael Bean

Michael Bean

Member
Joined 2004
If it sounds fine...and the caps look OK to me...I'd just leave it be and enjoy. Those electrolytics are good quality units and are probably just fine, but if you have access to a good capacitance meter it never hurts to check...you would need to disconnect one of the leads on each cap to get valid readings though. I don't see the resistor "R35" in the pictures so I wonder if it is actually there? Inductors rarely ware out or fail, so it is probably OK too.

Mike
 
  • Like
Reactions: 1 user
Kay Pirinha

Kay Pirinha

Member
Joined 2011
These electrolytics aren'r even bipolar, but polarized ones! I've seen things like that rather often and continue scratching my head what the designer might have been thinking. Replace them by non polarized electrolytics or better foil types. Motor run capacitiors will serve wel and are relatively cheap.

Best regards!
 
A

andreib18

Member
Joined 2020
I don t mind the price , I have like 4 caps and 2 resistors , meaning the expensive one are not that expensive so I can buy the better ones, also I might redo all the wires and joints, to pun off and a little more thick ones , and also my make DIN plugs are not that great, any ideea how those are named? They look like this.

IMG_0808.jpeg
 
Last edited by a moderator:
A

andreib18

Member
Joined 2020
These speakers are buyed from a well regarded speaker manufacturer, he says that the tweeter design in this specific speakers are a very very good model and a inspiration for some of his designs. I don’t know, on low medium levels they sound pretty accurate , the midrange driver is nothing special. I had some studio monitors lsr and focal and these things sound more natural to me . I can also put a dsp on the chain and correct for room.
 
You must log in or register to reply here.
Top Bottom