Is this an right time to buy hifi?

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

@millercarbon Fed printing, precious metals, crypto: All agreed. 
@p05129 Not that this is a digital currency forum, but Google large (US by the way) institutional holdings now and you’ll quickly see why your next audiophile component will soon be transacted through crypto. It’s an inevitable reality with today’s market infrastructure.