Im using ATH-M50's and with out a amp they sound quiet good with beats audio on, with my e6 on blue setting they sound on par to my sansa fuzev2. Great chip in this phone for sure.
HTC Kaiser > HTC Raphael > D1: some ROM > D3: safestrap v2.10 SD 4.8 > Bionic: SS 3.11/JB OTA > Droid DNA: Viper ROM 1.3.3 with Beaups Kernel
A100: CM10 TWRP > Tab 2 10.1: ZAP Blaster 2.1
I also have the LG Tone. I am using my model ones till the poorly designed wires that come from the headpiece fully break. I bought the LG Tone + when Verizon offered a discount, but have not switched. The buttons work great, answer calls, use commands to phone etc. However, the BT Reader app for text playback worked initially, but now does not work. I had read to go into Settings=>Accessibility=> and turn on Enhanced Web Accessibility, and BT Reader worked for just a little bit. Now it does not work. The only thing I have noticed is the voice command app got redesigned, which works better. I would love for BT reader to work!