Best caps for updating my VTL 225 mono's ?

Rodman99999, "Jensen copper foils are inexpensive."

God bless you. I wish a lot of us could also say those prices are inexpensive.

Marty, as always, beat me to the punch. When it comes to value for money, go with the surplus Russian military PIO caps.

I first found out about these several years ago from my buddy, who happens to be that anonymous author of the widely quoted Capacitor Shootout. Though the overall grade he awarded them was low, and thus there hasn't been the feeding frenzy on them there would have otherwise been, a careful read shows he found them to be in the top three in some respects. Suffice it to say he's a big enough fan to use them in his own gear; almost exclusively, in fact.

I was recently talking about them with a coworker of mine who emigrated here from the Soviet Union. And, like most of his ilk, he's an audiophile, though not to the silly extremes we go to. According to him, they find it difficult to believe the "high" prices we're willing to pay for them. Until recently, when some there realized they could make a few bucks selling them to us, they literally were thought of as trash, mountains of it. However, he did maintain their build quality to be far in excess of anything that these boutique high-end audio companies could ever dream of.