The first time i heard fit ear MH 335 DW miid year 2012 .
From that Time MH 335 DW is always my dream ciem.
I am very Happy to get my MH 335 DW yesterday
My second impression is like my 1st impression Last year
Source: iPhone 4 s
Dac : cyberlab Class - dB and Class solo
Dac amp : Go dap x With Upgrade op amp LME 49860
Amp : rsa intruder and RS 71 B Upgrade version from Ray
Alo Rx 3 B and tralucent audio T 1
Cable : USB to Lod ventura Craft 7N
Mini to mini DIY Silver solid core 8 braid
Mini USB B to Lod 30 Pin Moon audio Silver dragon v1
Balance to balance rsa Alo audio Copper sxc
High :
Without amp / direct to iphone Sound to Warm Site, my fit ear 334 is brighter.
With amp high sound diffferent open extended and very Clear and clean High .it is better Than 334
Mid :
Without amp / direct to iPhone sound natural and neutral midrange
With amp midrange sound so sweet , Clear and more presentation
And sound more Clear Than Without amp
Bass :
Without amp / direct iPhone bass sound to big sonetime feel to much bass
With amp like my Amps above , the bass quality i Ever heard from iem
In term of detail , impact and Speed
Separation :
Is better With amp , They open Up the separation from MH 335 MD AS well
You can hear the position from each instrument very Clear and can feel the position too.
Soundstage:
One of the best 3 D soundstage from iem like my tralucent 1+2 .
MH 335 DW has better In tall .
Conculsion :
For direct iPhone 334 is more Easy to drive
MH 335 DW is also Good for direct but With Synergy amp sound
Excelent .
Now is my best iem i own
This is my personal impression