“This is my second CIEM after purchasing Rooth's LS2. I own the Shure 535s as well. My sources as are iPhone 5C and Sony NW-F880, no amps. The LS4 has two bass drivers, so obviously this isn't for people who like monitor like sound. The bass is not overbearing, yet enhanced. There is a nice deep rumble, but not to the point where mids and highs are drowned out. The LS4 manages to...” --Yamato1
Features - Amazing detail and clarity - Extremely smooth and liquid across the frequency spectrum - Powerful bass with great tactile performance
elago E7 ARMATURE In-Ear Noise-Reducing Earphones (Compatible iPhone 4, 1G/3GS; Control-Talk with Built In Microphone)
elago E7 ARMATURE In-Ear Earphones, Enjoy the deep bass and high definition sound quality that is pure elago, E7 Control - talk has a built in. feature for use with music phones and newer iPhone. The control talk cable has a call answer button and microphone so you can easily switch between listening to music asn talking on your iPhone.