I recently received my new MP11SE and sooooo much in love with this piano, I seem to be having some potential sound issues, through the headphone jack. Issues I've experienced:
- headphone unbalanced sound L/R ear (right ear is louder than left)
- headphone buzz/hum (like a guitar amp / mic) ONLY in left year
- buzz/hum comes in and out, and playing the lower register bass keys returns the buzz
- putting my hand on the left side of the piano and applying some weight causes buzz to disappear and sound volume to change.
I ordered through GC and they said this is typical to some instruments due to electrical interference, but could also be a defect (learning towards to latter). I went to PW and also found this headphone static post (http://forum.pianoworld.com/ubbthreads.php/topics/2845479/1.html
I've tested with:
5 headphone models and 3 different (1/4 to 3.55m) adapters with consistent buzz/hum in ONLY left ear, through varied in level depending on headphone used. for some headphones, the right ear is consistently louder than the left. If I do NOT use the headphone jack, and use the line out through my focusrite interface connected to my iloud speakers, it eliminates all buzz and unbalanced-ness.
(video of me using headphone jack + iloud, see sound change as i put my hand on the piano)https://drive.google.com/file/d/1MBw8BKjVVjb3ThNVTRbO2JUz814FnSZS/view?usp=sharing
(video of adding weight to left side of piano with books and it being less of a problem)https://drive.google.com/file/d/1C2TKWgQygxtlQe88P53ZKXCwtbAOsXGs/view?usp=sharing
I'm pretty convinced it is a defect at this point... but the previous post really helped make me feel like it wasn't only me so I just wanted to voice my concern here
This thing is 75lbs, basically more than 80% of my weight and it was insanely difficult to get up my stair... Scared to do the exchange and then have it happen again, I've read through so many quality control issues so far... This is an upgrade from my roland FP30, which I didn't have a problem for in 3 years. My ooold roland FP4 has also lasted me over 7 years. I'm so sad!
thanks for being here for me during these difficult times pianoworld.