Changing electrolytics

It seems most of the large size capacitors are very expensive. Adding further difficulty is locating ones in stock. Recently purchased some for a Hafler redo. Yikes. The price is sky high!

CAUTION: Today's discussions are to be avoided at all cost by all novices out there. Imbibing into them may turn you off any audiophile pursuit forever!

You were warned lol.

Since you are saying "Big Electrolytics", you are most likely changing the filter capacitors of the power supply.  For those:

- Buy the ones with the HIGHEST temperature rating.
- Buy the ones with the HIGEST lifetime rating.
- Buy the ones with the HIGHEST ripple current rating.
- You CAN buy both the increased voltage and capacitance versions PROVIDED
  that if you have inrush current limiters such as impulse resistors and thermistors,
  their capacitance rating is NOT exceeded or they are very likely to explode at power on.

As an example, here is what I used in my own built amplifier (4 of them):

https://www.digikey.com/en/products/detail/kemet/ALS70A513NF100/6928356

Note how they are rated at 20,000 hrs at 85 degrees C.  They are indeed expensive but remember that they are at the heart of the power supply.

Thanks!