Yes, smartphone EQ affects the BTR1 sound.As per FiiO's response, no (although that "sound effect" is pretty cool).
But I think that you can EQ from your source, no? I don't use EQ, but EQ from my S7 phone seems to affect the sound of the BTR1 (although maybe this isn't something that one wants to do).
I think you're meaning that, as the BTR1 is a DAC, before an amplifier, the smartphone eq shouldn't affect it.
Probably his equalization is a digital one, BEFORE the DAC.
Mee too would like to be sure that the decodificatione and the amplification of the track are operated only by it. But i think it isn't so.
I made a test: i've made an extreme equalization. After that i've freezed the EQ app. The sound has been the same. I restarted the phone and the sound came back flat.
However, it seems that with flat eq or freezed, music is the same.
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