There are frequently frictional lags in the degree to which the prices of goods track input costs. However, the current global circumstances have created an unusual, if not unique, situation. We have become accustomed to a having very low interest rates and very low inflation, but that situation is now reversing. We also have the various global supply chain problems arising from various circumstances including the pandemic and the current war being waged by Russia on Ukraine. The UK is suffering from further cost increasing pressures arising from Brexit.
Often when faced with input price rises, manufacturers and service providers try to absorb the costs to maintain their position vis a vis competitors. However, there eventually comes a tipping point where they have to raise prices and the effect can look rather sudden even though it's the result of a period of sustained pressure.
Separate to all that, the stock of wealth in capitalist economies tends to increase over time as a result of rising productivity and also inheritance.
Aside from the current price pressures, I haven't seen radical rises in the price of high end audio. But what I have seen is the introduction of higher priced lines i.e. product lines where the price is higher ab initio - Constellation Audio and Techdas are examples.