Apollo is available on Play Store. I've been using a simple material design app called Orpheus. It doesn't have EQ but I use Viper as it blows away everything else for audio processing. MaxAudio is uninstalled
I have one issue. I got my Media Storage corrupted and couldn't copy files to my device via MTP so I cleared it data and then used a program to rescan the sdcard. This was fine except it didn't have my ringtones (from /system) anymore. Easy fix I thought. I copied the media folder deleted it then copied it back. Done. Ringtones and Alarms back on the list... and my media player plays them as audio files in shuffle play. Doh! Anyone know how to fix this? Reflashing wont