Best way to spend a 100ish quid? I'm happy with my monitors, whilst they are far from the best, or even adequate, I know them well after 8 years of use. They're positioned well and dampened to avoid reverberation on the desk. I'm using the onboard sound from my PC. I can't do soundproofing due the fact it's the frontroom, full of odd shapes and corners, rented and my missus will 100% put her foot down about having sound insulation blocks on the walls. Would a semi-decent audio interface be the best option? Or a dedicated soundcard? Don't need XLR, only phono. Anything else?