well , i posted pl11 gives better output ( more loud as pl11 has more sensitivity ) i know the pl30 is better in highs and mids ..
i felt that fiio is not worth with pl11 as much as with pl30 coz there is already sufficient bass and loudness in pl11 with 70-80% volume . u are saying that one should reduce the volume from player to 25% and apply fiio to get it back to 75% :rofl: whats the point of doing that , equalizer can do the job of improving the bass as well without the need of amp .
try the pl11 with sansa clip / ipod , even at 80% volume its VERY loud and lots of bass .