Parasound will service their amps. It might be worth finding an email address on their website and emailing them to ask about costs of replacing caps on your 2200, maybe include pics. If caps show signs of leaking, they will eventually become an issue.
Parasound is on the west coast, so it might be too expensive to ship if you're on the east coast. Their website, under the Support tab, lists authorized Parasound service centers, I'd pick one close to your location if you're on the east side of the country.
As for a pre amp, the Parasound Classic 2100 is well thought of for its price point and can be had used for close to your budget. Also, the Emotiva USP-1 might be an option. As well, Old Adcom and Nad pre's might also fit the bill.
Parasound is on the west coast, so it might be too expensive to ship if you're on the east coast. Their website, under the Support tab, lists authorized Parasound service centers, I'd pick one close to your location if you're on the east side of the country.
As for a pre amp, the Parasound Classic 2100 is well thought of for its price point and can be had used for close to your budget. Also, the Emotiva USP-1 might be an option. As well, Old Adcom and Nad pre's might also fit the bill.