Nobody wants to stock and pay tax on repair inventory that might sit on the shelf for years. The 90s were 30 years ago, it's not very feasible or business smart to provide repair service for items that old. That is really asking for a lot, 10 years would be exceptional in today's market.
Wasn't "factory service" but I have had no problem getting servicing or repairs done on my McIntosh gear. There are several very reputable individuals available. The McIntosh amp and preamps I own are from the 1980's and early 1990's.
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