Is this an right time to buy hifi?

Shortage of components cause shortages not corner cutting.  Shortage of people could cause cost cutting. For the most part the world missed 3-6 months of manufacturing. EVERYTHING is short not. Leading to supply chain issues everywhere. Waiting for GIK due to fabric shortages.  This is bad time to buy. Discounts are short and demand seems to be high. 

Now is the right time

Millercarbon is correct except for buying Bitcoin. You can bet your &$) it will be outlawed sooner than later. Specifically because of the ransoms associated with the crypto currency. Gold, platinum, silver. That’s the ticket 

I do not think so especially if they are reputable but i think the reason for the delays are because they do not want to cut corners and compromise quality.

Never buy Bitcoin, and silver and gold aren’t that great of investments. There are so many better investments to make out there.
As for an audio system, car, and other tangibles, these are not investments, they lose money the minute you take them out of the showroom. A house is normally not an investment either.
I would never buy a car or audio system on credit because you will be upside down in owing more than what they are worth.
Buy what you can afford