Russian caps of interest

[wolf_teeth]

Are you speaking of the brown rectangular box type ? If so I've tested a couple of them.

Yes- but most of the MGBO are PIO types. I jumped on the MGBO because they were polystyrene in the 2 I got. You can tell the difference in size is valid from the PIO to 'styrene as they are much larger.

Wolf

 

[sumotan]

I didn't know that MGBGO was available in Styrene, are they label as MGBGO2 as I've seen such caps.

Cheers

 

[wolf_teeth]

Link to where I got them:
2 pcs 4uF 160V 5% Polystyrene Audio Capacitor MPGO USSR NOS | eBay

MPGO is the label, not MBGO as I stated prior. My apologies.
Wolf

 

[wolf_teeth]

Better photo of mine for clarity and posterity, my hand written value and type.

Wolf

 

[freddi]

- guessing Brinkman's caps would "sound good" charge coupled

 

[Brinkman]

Charge-coupled to my visa maybe 😉

In all truthfulness, I have a pair of Solens to charge couple vs the 4.7uf ‘styrenes

 

[sumotan]

Aaaah looks like mind is different but if you use these in speaker XO it sounds very good & it has big sound only bad, highs not so good so have to bypass with something like Mundorf Supreme then it'll will sound wonderful.

 

[wolf_teeth]

Got the first pair of 10uF K71-4 today. The seller threw some bonus smaller value 'styrene and 'lytics in there too! Nice Bonus!

Wolf

 

[Zedguy]

Yes I have made a few purchases from this seller and there is always a freebie included.

 

[phase]

For crossovers, I’ve used any good polypropylene (Clarity MR) along with 10% - 20% K71-4.
Have also used industrial Kemet polypropylene along with the K71 sometimes as well using the same ratio.