help on changing capacitors

Right. Caps are easily swapped. Think of it not as a repair but as an upgrade. Shop for your caps the same way you would shop for any other component- by listener impressions. If you want a silkier more liquid sound, buy those caps and that is what you will have. Do this and you needn't worry about maybe making it sound worse. Almost certainly the caps used were so cheap anything will sound better. Only question, by how much. Oh, and use a solder sucker to get that old solder out of there and use Cardas Quad Eutetic.

Miflex. Clear, dynamic and a little bit bright and should fit in the space.

Can you buy those capacitors from BAT?

Hello every one I need advice...I have a balanced audio technology vk-5i preamplifier that needs to change the output capacitors they are rated 1mfd at 400vdc this use to be made by Jensen

I know they have a vague looking black line that "may" indicated they are electrolytic that would warrant changing them after >10 years, and the two would have to be back to back to make them "non polarized" which would mean you only have 1/2uF not 1uf.

But I’m not sure they are electrolytic. they may just be non polarized paralleled caps to give 2uf, and no need to change them. And there are no + or - markings on the PCB. also
https://ucarecdn.audiogon.com/d559b139-dd3a-4af1-943f-a6d63245f6c6/-/autorotate/yes/

http://oldsite.sophiaelectric.com/pages/parts/jensen/jensen_cap.htm

Cheers George

They’re not electrolytic capacitors. Because it’s a balanced circuit the output is through two output capacitors. So there are two 1uF 400V Jensen’s on the positive/negative output. (These caps appear to have a history of failure in these amps.)

The Miflex can be got here:  MIFLEX KFPM-01 Capacitor, 1.0uF 600Vdc, Copper Foil Polypropylene Film (partsconnexion.com)

Info on the caps:  http://www.miflex.com.pl/assets/dokumenty/KFPM-01-ENG.pdf (partsconnexion.com)