If you go for the NuForce 9SE, it's a very dynamic, clear, and detailed amp the way it comes... But if you want it to sound sweeter and more musical I suggest removing the top cover and snipping out the single yellow capacitor across the speaker terminals. To me, the capacitor makes the amp sound colder, brighter, and more clinical. I think it sounds quite good with the stock cap in place but it sounds so much more musically gratifying with the capacitor removed.
That said, the capacitor also blocks some RFI, so if you're using a FM tuner in close proximity to the amps, you might want to leave the capacitor in place (though the output wiring runs through a coil to reduce RFI to a large extent).
That said, the capacitor also blocks some RFI, so if you're using a FM tuner in close proximity to the amps, you might want to leave the capacitor in place (though the output wiring runs through a coil to reduce RFI to a large extent).