I would suggest a different (and easy) test - try a different set of speakers. I like Triangle Comete speakers, but I doubt that anyone will describe them as bass slamming or ass kicking. They excel at exactly what you say they excel at: female voices and small instumental music.
Depending on your musical tastes, your room, your front end (analog or digital) and most importantly your ears; it's hard for any of us to conclusively advise you on how to proceed.
A new integrated amp - maybe. New speakers - maybe. Mod your Jolida - I would vote no. Any conversions will likely equal or exceed the value of the unit, and will severely lower the resale value. Better to replace, IMHO.
Depending on your musical tastes, your room, your front end (analog or digital) and most importantly your ears; it's hard for any of us to conclusively advise you on how to proceed.
A new integrated amp - maybe. New speakers - maybe. Mod your Jolida - I would vote no. Any conversions will likely equal or exceed the value of the unit, and will severely lower the resale value. Better to replace, IMHO.