Leaky capacitors need replacement?

yes for sure they do

I should add I would be most happy to put something in that might last longer.

I don't know if I can fit those fancy caps in the same spot -- they are rather large!  I probably need to get something the same size so I can run the leads where they need to go (my amp is point-to-point wired).

Aren't electrolytics generally frowned upon for audio use because they leak and have issues with heat?  My understanding is that they are only used because they are physically small for the farads/volts compared to other types. Is this right?

Are you saying to replace the electrolytics with new electrolytics or use something else? These are right off the AC mains between the IEC plug and the rest of the amp.

These parts are being used in the DC Blocker inside the amp.

They should be replaced with the same value and voltage. @timlub has mentioned some nice quality parts to replace yours, which have a tendency to do this long before their time.

On the electrolytic on the boards, I would recommend Panasonic FM, Nichicon KZ or FG or Elna Silmic II.  These caps all perform at a very high level. 

Absolutely.

Are the one's in the picture electrolytic or something else?

Electrolytic.
Minus - sign on black strip down one side of the cap, donating which leg is minus.

Cheers George

Are you saying to replace the electrolytics with new electrolytics or use something else?  These are right off the AC mains between the IEC plug and the rest of the amp. 

Are the one's in the picture electrolytic or something else?

If you are ordering caps, you might as well order and replace all the electrolytic while you are at it. Also there is never a problem with getting higher voltage or higher temperature caps, in fact it is recommended. Just check the size. You’ll be quite surprised with how much better it’ll sound when you are finished;.

I can't get to mouser for some reason.  I should not get electrolytic, right?

Yes

I should add that I opened the amp up because it was making a sputtering noise every once in a while -- would this perhaps be the cause of that?

Yes, it's an upside-down photo and I scraped some of the brown off of the top (bottom) already to see where the leak was coming from.  Thanks!

Leaky capacitors need replacement?

shawn3997

If those pics are with the amp upside down then yes, as the electrolyte in leaky electrolytic caps doesn’t flow uphill.
Change with the same value and uF and get 105’C temp ones not 85’C.

These top quality Nichicon's will do fine
https://www.mouser.com/ProductDetail/Nichicon/UCY2V330MHD1TO?qs=OZVHsXXMeBXRI0EgBUy4uA%3D%3D

Cheers George