While it's true that you don't NEED a 'scope with a bandwidth of
several hundred MHz for audio range use, I'd have to agree that a
7000 series 'scope is an excellent choice. They're versatile, very
inexpensive indeed these days, and easy to come by.
Their technical performance is also excellent, really about as good
as you're likely to find anywhere.
The 7000 series was the premium line of its day. They were built for
pure performance, not to fit a modest budget.
The only thing against them today is the fact that they're getting a
bit old, and failures in the scope mainframe power supplies are pretty
common now. Those failures are cured by replacing the tantalum caps
in the switch mode power supply more often than not. It's a pretty
simple repair that costs just a few bucks plus your labor.
CJ
