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Tell me about your RXMK3 - looks like it has a bass potentiometer. How do you like this amp?
Overall sound is good. Is above average quality. But this amp has a VERY plenty of power, so might suit MORE to a full-size cans rather than my iems. The bass knob effect is not like an usual bass booster on the other amps. It does do the boost, but in a smoothest way and for some they may find it too subtle. For bass head, they won't satisfied by its function. But in term of audiophile, i think i like it, though the bass on this thing is good already without necessarily switching ON the knob. Just to note, I have problem with the Volume pot "twice". The pot is not as smooth as the bass knob. Is kind of difficult for me to adjust and swing just by a little to get the perfect level of hearing. They just annoyed me much ! (my 2nd unit the vol pot is OK but....) and THAT static noise and channel imbalance in low volume range, makes it perfect for the hate !
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What is the best power amp from your amp collection from alo international , Rx 3 b , apex Glacier and pico power ?
Thank you
Power wise: RxMK3 > PICO Power ( i am not too sure about Glacier as they use button press to adjust the gain and i have yet tried it, but if out of the box is set at LOW gain, it could be Glacier is the winner), however, these three amps they do really capable of driving my HD650, "easily". And for IEMs use, Glacier can tolerate better.
And btw...i don't like the way ALO do the gain on RxMK3...is like they have uneven distribution of current on each gain when u step up from one gain to another.
For the detail and clarity : Glacier > Pico Power > MK3 (but they all quite good in this respect)
For neutral presentation: different presentation but they all do quite neutral and smooth IMO.
For bass: Pico > MK3 > Glacier (they all have above average bass foundation and solidity).
If i would pick one just to pair with ipod alone...my pick would be PICO. Sound is very exciting. If i added DAC into the chain, my pick would be Glacier.