Straight out of the line out with the fiio x5>e6 the eq settings distort a bit in the bass and treble distorts a bit, out of headphone out with the x5 at around half volume everything is fine, funny. But yeah don't hear the hiss on the e6 at lower volumes only if I turn it way up do I start to hear something. The red bass setting makes the whole signature with the b3 quite dark and a tad muddy, might be how the new b3 model sounds as clarity takes a hit for more bass. The blue setting is a nice fun setting, v shaped sounding.
Personally I usually stick with stock or violet low gain when I play with iems on the e6. But yeah the e6 does power the b3 quite well and is a great budget amp choice for it.
