Anyone heard Rotel RB 5000 Amp from the late 70s.

I saw a few people selling this amp on here.
That amp is massive.
It came out in like 78 and weighs 130 pounds.
The transformers in there are huge.
Here's a pic of the inside.
I saw one for sale 2 years ago, unfortunately there was only sound coming from one channel. It needed some repairs.
I looked up the amp online.
It came out in 1976 and its list price was 2700$
WOW! that was alot of money back then.
The amp looks really impressive.
The only thing i would ad is, make sure you can get the replacement parts.