Superlux S502 ORTF - Stock vs Modified

The hight is a bit different from one day to the other, so I adjusted all Audio levels to the same LUFS value.
The input stage got a film capacitor in parallel, so did the coupling capacitors. I was pretty surprised how big the difference is, more depth, more dynamic, more precision. Do you agree?
00:00 Superlux S502 Modified
00:34 Superlux S502 Stock
01:04 Oktava Mk012 as a reference

[@pedrovaz3301]

Hi Benno, really nice before and after. Do you have more details, regarding "The input stage got a film capacitor in parallel, so did the coupling capacitors."? What capacitors, what values, etc?

[@bennokaiser698]

Hi, that was a while ago. I use WIMA film capacitors, if parallel to a electrolytic capacitor usually 10nF, in the input stage I changed a ceramic type with a 1n film typ. I remember that space was quite an issue. Liebe Grüsse
Benno

[@megma78]

Hi. Excellent comparison. Do you have more details on the mod?

[@bennokaiser698]

in the description. Liebe Grüsse
Benno