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Looking to buy new scope for audio: R&S vs Keysight entry models

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salomonander:
Thanks, i thought so as well. The specs are insane. THD+N -130dB

EEVblog:

--- Quote from: salomonander on October 08, 2024, 10:39:30 am ---Thanks, i thought so as well. The specs are insane. THD+N -130dB
--- End quote ---

Yes, I bought an AP2700 for $500 from a previous company I worked for. Sold it on ebay for $8k I think it was. Great bits of kit.

fabrizio_fabrice:
It depends on your intended use.  Analysis is one thing, but you say you do repairs.   

I have several older Tek analog scopes, which have great triggering features for small-signal analog work, especially.    In contrast, I find the Siglent SDS1202X/E very frustrating to use.  |O

Mentioned trigger features are all digital methods, and only 1 trigger input.  If you have a sig gen for trigger, an attenuated output could work for probing.

The Siglent FFT is a great feature; wish mine produced Bode plots.   It's sensitive enough to show MW RF signals across the band with nothing more than a short wire... (and averaging).  But that's RF-speak.

Maybe other here can say how they approach audio repairs?π

BennoG:

--- Quote from: egonotto on October 07, 2024, 10:25:29 pm ---Hello,

for audio applications, a 16-bit PicoScope 4262 could also be of interest.


--- End quote ---

Yes I would also go for a 14 / 16 bit picoscope.
I use them from 2012 and also have a  tektronix mso4104, 99 our of 100 I use the picoscope.

There is a bode plot using the SKD with a lot of community support https://www.picotech.com/support/viewtopic.php?t=14311

Benno


Neganur:
Fixing audio circuits I’d think any scope will do. All you want to do is follow a waveform in the circuit, no?

I don’t think a scope is any good for THD, and so on since they don’t have the resolution or dynamic range, measurements its <100kHz so maybe even a good (external) studio sound card for the distortion, noise etc? Or 2nd hand, e.g., Neutrik audio analyser gear, but they are probably too expensive.

Or am I completely out of the loop for audio?

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