Hi All,
great thread OP, thank you for this very informative post and discussion.
but I am going to go against convention and try to bring out MORE sub-bass and rumble on this headphone.
long story short, my first IEM was an Meelec M6, I purchased it based on great reviews on this forum, and thus I think I got accustomed to the sub-bass heavy signature of the M6/M9 IEMs.
later on, I acquired other head-fi equipment based on recommendations on this forum: Meelec M9, monoprice 8320, Fiio E11, Philips SHE3590, JVC HA-FX101 and Monoprice 8323.
However, even with my iphone 5S set to "bass boost" and Fiio E11 set to EQ2 with High Gain, the monoprice 8323 cannot generate enough sub-bass and rumble for my liking when listening to rap and hip-hop.
thus after digesting info from this thread, I want to try the following, in an attempt to bring out more sub-bass:
1. enlarge the side cup vents (step 4 from OP's 1st post)
2. poke and clear out the driver vents/holes (step 5, the holes that OP covered up half of them with micropore tape)
is there other mods I can do to bring out more sub-bass?
TIA
regards,
M