On Tuesday, 19 February 2019 20:16:31 UTC, Phil Allison wrote:
tabby wrote:

If all you're doing is audio, any halfway sane scope will do that,
even that Cossor.



** Absolute ********.

Audio is ELECTRONICS, not sound.

The range of frequencies found in audio electronics extends to frequencies of many MHz. Domestic AM and FM radio deceivers are considered "audio".

Radio microphones are considered "audio".

I'm sure we covered this already. The OP did not ask for a scope to do radio work with. He is not servicing hifis.

Faulty ( or badly designed / built ) audio amplifiers may exhibit oscillation upto 50MHz.

which even a clunky old 1MHz scope can pick up using an envelope detecting diode.

Digital audio seems to know no bounds.

It's the OPs choice whether to spend 3 figures on a scope that can handle every piece of digital audio in existence or 2 figures for one that can do more or less everything he's likely to work on. Given that he's a curious hobbyist, the latter seems more sensible. However, it is the op's choice, not mine or yours.

There really is no point covering this ground yet again.


NT