WTB Audio analyser, Prism Dscope III, maybe AP, something in that line.

[dmills]

Hi all,

For my home lab I am after an audio analyser, ideally both analog and digital capable.
I am thinking Prism Dscope III, or maybe some form of AP set, budget is a few thousand depending on options, anyone got anything they would be interested in selling?

Location is UK.

Regards, Dan.

[DaJMasta]

A few thousand is the right ballpark, in my experience, though an older AP or a R&S UPL or something would probably be a bit less - I don't know how easy it will be to find a dScope III or modern AP system (maybe an APx 51X) for that price, but if you look for long enough you may come across a good deal.


It's not exactly what you're looking for and it's not immediately available (needs some testing to be sure it's fully functional and it's a couple projects back in the queue), but I've got an R&S UPV with no options (so analog only, generator to 80kHz but analyzer to 250kHz) that I intended to sell in a couple months time that would save me a good chunk on fees if I didn't have to sell through ebay.

[macboy]

I'll point out an alternative: a PC with a very high quality sound card plus software.
This can yield impressively good results, in part due to a large amount of memory and processing power available on modern PCs.

I use a M-Audio Audiophile 192. This has balanced outputs and differential inputs, and can measure THD+N below 0.0010%.
I also have a standalone traditional audio analyzer: Panasonic (National) VP-7722A, which is good to below 0.0001% (1 ppm) THD and 0.0003% THD+N.

[dmills]

To pull off the soundcard approach you really need to add a set of notch and bandpass filters so you are only digitising the residuals. 
It can be done, but the nice thing about an AP (or equivalent) is that all that stuff is there and you tend not to be questioning your tools rather then your DUT.

Regards, Dan.

[cvanc]

If you can live with analog only you might want to consider the Quantasylum QA401.  I have one and while it's never gonna be confused with an Audio Precision it's a remarkable device - and tiny, too.

https://quantasylum.com/products/qa401-audio-analyzer

[bozidarms]

RTX6001 Audio-analyzer!