I'm apparently a moron cuz I got no idea What multidirectional bass is?
It has an off/med/high switch?
Return the O2 since your a basshead or at least like Hip Hop....same think pretty much. I know the e12 has the power for the SZ and the bass boost is low in the sub-bass region so it's a good start.
If you have an iphone or ipad your set...******* SET!!!
They got an epic app that works very nicely with the e12 in the middle.
Your source is where most of the tweaking should go on and the amp should be boosting that tweaked signal and giving it a minor polish at most before passing it to your headphones.
The e12 works so good because the sub-bass boost is light and low and is frosting on the cake. The meat of the tweak should be done before is gets boosted.
The e12 is a known and proven way to throw clean power at any can we have tested and work very good with the SZ.
That leaves the source/dac as the "?" This is kinda going backwards but since you got the pads and cans you already have the main piece. If you switch the amp you got 2 of 3 and then it's the source and that can be had via multiple avenues so no worry on that.
Like I said if you have an ipad (that would be ******* awesome) or iphone (that would be a slightly lighter shade of ******* awesome) we are already done.
I am in Japan so gotta sleep but these are facts/known points
- You have epic/most videod bass cans on the ******* planet earth
- You fixed the weak point already (pads)
- Your maybe willing to switch the amp out
- The last part is maybe just software (******* algorithms ...) or at worse a DAP
Planet bass is right around the corner. 2pac and the gang are ******* waiting on you bru!
If you have an idevice you can find the exact beat and match the boost and really go stupid stuuuuupid crazy. The Cowon has this beat in overall but in specific track optimizing these 2 apps are nuts. Find it...boost it, save the slope...rinse and repeat. God help me but I find this to be fun as hell. I got OCD bro. I need to know where everything is including the bass hits so I can boost that stuff.