I use the A5 straight out of my phone and macbook and they sound great. They need a bit of power to get the volume going but most phones have enough juice. The stock tips are essentially clones of the sony tips, and I am not a fan of how the A5 sounds when using those, however, YMMV. Do try a variety of tip shapes and sizes, and you will know its the rip tip when you can hear the bass clearly but also cleanly. The A5 sound loses quite a bit of its body if you don't get a good seal. I didn't have to do much tip rolling - its plug and play for me and I am loving. It also sounds monstrous through my X7 + AM3 and AM5 modules. However, most of the time the A5 is playing out of my Note 4 because YOLO.