Hi all,
Just starting a thread. I intend to optimize my sound system a bit. Step by step.
I finally opened one of my crossovers to look what's inside. I unsoldered one leg of the 16uf electrolytic cap and measured 18.6uf (+-5%).
I will give it a try and will replace that one with a good Polypropylene cap.
Not sure about the others. I basically want to leave them in there as I read many articles about the "right" replacement, there are many opinions around going from "leave them all original" to "bypass the treble selection switch" to "build your own or buy a custom crossover".
Anyway.
The yellow Arco ones: I guess these are film caps. Can anybody confirm?
But what is the the one in the brownish enclosure? I can't seem to find any information.
I can confirm the written values correspond with the values in the circuit diagram:
LF section: 16 uF
HF section: 1.5 uF, 3.3 uF and 6.8 uF
Basically I like the sound of my speakers, I have had them with me the last 25 years. I am currently driving the speakers with a Sansui 771.
I mostly have the loudness switch on and eventually have to reduce the bass. With loudness turned off the sound seem to be to damped.
My father once built the encloures, then had to cut them in half (because of my mother). Probably they are not the sweet point size now. 🙂
But hey: I like them.
He also put a lot of damping material inside, a friend told me to get rid of 60% of it, I have not tried that yet since then I probably I have to fix it somehow on the interior walls...
Do you think it is worth unsoldering the HF section caps an measure them?
Anyway basically I was just wondering about that brown cap.
The replacement for the 16uf is on it's way, I will report back when I have replaced them.
Cheers
Boris
Just starting a thread. I intend to optimize my sound system a bit. Step by step.
I finally opened one of my crossovers to look what's inside. I unsoldered one leg of the 16uf electrolytic cap and measured 18.6uf (+-5%).
I will give it a try and will replace that one with a good Polypropylene cap.
Not sure about the others. I basically want to leave them in there as I read many articles about the "right" replacement, there are many opinions around going from "leave them all original" to "bypass the treble selection switch" to "build your own or buy a custom crossover".
Anyway.
The yellow Arco ones: I guess these are film caps. Can anybody confirm?
But what is the the one in the brownish enclosure? I can't seem to find any information.
I can confirm the written values correspond with the values in the circuit diagram:
LF section: 16 uF
HF section: 1.5 uF, 3.3 uF and 6.8 uF
Basically I like the sound of my speakers, I have had them with me the last 25 years. I am currently driving the speakers with a Sansui 771.
I mostly have the loudness switch on and eventually have to reduce the bass. With loudness turned off the sound seem to be to damped.
My father once built the encloures, then had to cut them in half (because of my mother). Probably they are not the sweet point size now. 🙂
But hey: I like them.
He also put a lot of damping material inside, a friend told me to get rid of 60% of it, I have not tried that yet since then I probably I have to fix it somehow on the interior walls...
Do you think it is worth unsoldering the HF section caps an measure them?
Anyway basically I was just wondering about that brown cap.
The replacement for the 16uf is on it's way, I will report back when I have replaced them.
Cheers
Boris
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Update FYI:
I measured the 16 uF electrolytical Caps out of circuit, one was 18.6, the other within range. I replaced them with film caps.
The brown ones I could measure without desoldering having the rolloff switch at the right position. They both were good. I left the other ones be without measuring them and focused on a better terminal (there was a 2-pin DIN connector), sanded the 4-pin Tannoy Plug and reduced the damping material.
I am quite happy with the result and can now concentrate on listening to music 🙂
I measured the 16 uF electrolytical Caps out of circuit, one was 18.6, the other within range. I replaced them with film caps.
The brown ones I could measure without desoldering having the rolloff switch at the right position. They both were good. I left the other ones be without measuring them and focused on a better terminal (there was a 2-pin DIN connector), sanded the 4-pin Tannoy Plug and reduced the damping material.
I am quite happy with the result and can now concentrate on listening to music 🙂
