“PSB M4U 1: A New Standard is Born Intro I am quite sure that many of you, myself included, have started on the seemingly never ending path to finding the perfect set of headphones. Terms such as too bright or too dark, mid-bass hump and recessed midrange, peaky treble and...” --Bansaku
“Hi, This headphone is the best I've heard. I have Sennheiser PXC 450 and Bose QC 25. PXC 450 has a poor sound if you hear the PSB M4U2 ! Bose QC 25 is impressive about cancel noise, but too much bass and not very musical. PSB is excellent for listen music in 3 modes and his cancel noise is not the cancel noise of the Bose, but I prefer PSB. ” --hongkong
Spark High Definition In-ear Headphones are the combination of precision acoustics, unique design and expert ergonomic research. Powerful and accurate acoustics are achieved through high performance dynamic driver and special high definition acoustic filter built-in, resulting in full, explosive bass, intense mid-range and clear treble frequency response that will put a smile on your face...