After my Flex's were wrecked I asked Phil which model he'd supplied me with, and It was indeed the 'reduced bass' version.
I really wish they hadn't been destroyed, as I was liking the Flex's as they broke in ( or I got used to them ).
I didn't feel the need to turn up the volume to uncomfortable levels to get decent bass SPLs, like I'm forced to with my UE TF10s.
Bass on the TF10s seemed a little tighter than on the Flex, but it did seem like the Flex was getting tighter in the lower registers as I ran them in.
I've been really torn between re-ordering the Flex, or waiting for the BA4.
Phil has been really great about helping me out in my hour of need, and, as a consequence of the comfort and build quality I'm definitely sold on the idea of customs and Cosmic in particular.
The sound quality and customer service helps too!
I've elected to wait for the BA4 as they're barely any more expensive than the flex.
Phil tells me that the bass should be a little tauter than the Flex.
I've got my fingers crossed for bass quantity as I wouldn't want less than the 'reduced bass' Flex I had, we'll see, must be patient...
While I wait for the BA4s Phil has offered to make me a pair of dynamic driver 'phones more suitable for portable use ( basic cable, bottom exit ) and I'm going for a smoke left/red right colour scheme, hopefully I'll get untextured faceplates like on my Flex.
It's funny, I'd almost pulled the trigger on some 1964 Quads when Project86 started this thread, I wonder if the BA4 will sound anything like them?, I hope so, they certainly have a similar driver compliment.
I've just stumbled ( Spotify ) across four random tracks in a row that I really love, I bet these would sound great on the Flex:
Reverend And The Makers - Bassline
Deekline and Wizard - Bounce and rebound
Screamin' Jay Hawkins - Heart attack and vine
Handsome Boy Modelling Scool - The Truth