capacitor question?

[the_doc735]

You're very kind but I don't make any claims to be a guru or expert on anything.
Yes, it sounds like your DAC has had plenty of modifications carried out, most of which seem to be swapping capacitors for more expensive capacitors or wires for more expensive wires. Maybe one more capacitor swap will rescue it from being "all bass and treble" but I honestly don't know what capacitors to recommend that would do that.

Taken your advice in the end and ordered some JB-JSX 4,7Uf - 250v polypropylene; ±5%; Ø18.5x26mm; -55÷85°C; ...from T.M.E. http://www.tme.eu/gb/details/jsx-4.7.../jsx-47u250-5/

ordered some JB-JSX 4,7Uf - 250v polypropylene; ±5%; Ø18.5x26mm; -55÷85°C; ...from T.M.E.
Just 'Google' jb jsx capacitor review! "best bang for the buck?"

[the_doc735]

If caps are too large to mount horizontally is it OK to mount them vertically ?

[the_doc735]

nice paper here:

http://www.maxpierson.me/2009/03/17/...ors-are-bogus/

[struth]

If caps are too large to mount horizontally is it OK to mount them vertically ?

If they fit, yes, although put a sleeve on the long bare wire

[the_doc735]

If they fit, yes, although put a sleeve on the long bare wire

[the_doc735]

surely, this shielding can be done to reduce inductance? (with a further piece running across the 4 caps to ground, [with conductive adhesive] )?

capinside-3a.jpg
P1070253a.jpg

[Jimbo]

Just had some polypropylene caps replaced in the equalisation circuitry of my phono stage and I listened quite carefully as they ran in and there was a significant change.

Listening from fresh I found them a bit thin but as the hours went by they developed a much fuller bass and the top end became more detailed and clean. After about 50 hours they seem to have stopped changing and the sound is now very good indeed with excellent depth and width to the sound stage and detail in the sound stage I had never heard before. I would not have thought changing caps could make so much difference.

[Firebottle]

Polyprops are what you need for best, take my word for it

Onwards and upwards, it just gets better

[the_doc735]

Just had some polypropylene caps replaced in the equalisation circuitry of my phono stage and I listened quite carefully as they ran in and there was a significant change.

Listening from fresh I found them a bit thin but as the hours went by they developed a much fuller bass and the top end became more detailed and clean. After about 50 hours they seem to have stopped changing and the sound is now very good indeed with excellent depth and width to the sound stage and detail in the sound stage I had never heard before. I would not have thought changing caps could make so much difference.

Hi, what have you got now and what were they before please?

[the_doc735]

Polyprops are what you need for best, take my word for it

Onwards and upwards, it just gets better

I agree, any preferences in 'brand/price? OR is it all about: internet 'papers', forum opinion, any other source of evidence, size, capacitance, voltage, Tan Delta (DF), Q Value (resonance), ESR, reactance, ripple, impedance, longevity, leakage etc? (i.e. the important parameters!)