Hi The left channel of my dx200 AMP1 stopped working the two headphones and the line out, when I connect headphones, there is noise on the left channel. The digital out and usb work, the operations system too, Someone with the same problem? Thanks for any help,

yes for the moment the problem is solved also the balanced output of the NAD with the same balanced cables on all headphones work perfect I dont know what was, I just re- soldered everything I could, at the back side of the plate sometimes (very rare) stupid reactions of ignorant people give...

Hi again Thanks a lot for the help I really appreciate I know almost nothing about electronics, because after 3 years there is no guaranty, if it is completely broken i will give to a friend to play with and ...never matrix again so yesterday I opened the case and I re-soldered the connections...

Thanks again for helping me i already tried all three positions on the gain switch, the problem stays if i listen to an orchestra the problem is not so big but on solo instruments guitar violin etc they all move to the left connecting the ibasso dx200, the headphone output (only there i can...

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i dont see a back side gain switch, it is the matrix stage HPA-3B i also checked inside, (I only removed the cover) can you tell me please where this switch can be? i attach a photo thanks

i mixed the opamps thr problem remains at the same channel

thanks raoultrifan i tried RCA and XLR with different players the same happens balanced headphones or not the same, i thought it may be the pot but when i turn the knob there is no noise or cracking i will open it to mix the opamps and see if the problem moves to the left channel (i hope)

3 years ago I bought the Matrix M-Stage HPA3B today out of the blue the right channel gives less volume I tried different cables, headphones and players, the problem remains (no mods, never opened the case) Am I the only one? if you know what it may causes the problem please help

i was wrong about the model, it is the Matrix M-Stage HPA3B

3 years ago I bought the Matrix M-Stage HPA3u today out of the blue the right channel gives less volume I tried different cables, headphones and players, the problem remains (no mods, never opened the case) Am I the only one? if you know what it may causes the problem please help

3 years ago I bought the Matrix M-Stage HPA3u today out of the blue the right channel gives less volume I tried different cables, headphones and players, the problem remains (no mods, never opened the case) Am I the only one? if you know what it may causes the problem please help

also if people of ibasso.com are good/clever engineers why do we need people like Lurker or fidelizer to get a better sound????ROLFMAO