I have the forza noir hpc mk2.
I love it. But I don't have much of comparison, as I didn't use the DUM very long. Earlier I upgraded to the same forza cable on my pm3's (with this hp I had some experience with the stock cable), and the improvement I noticed surprised me, I loved it, and I went for this for the flow.
But: the stock cable on the Flows seem much better as the stock on the pm3's, so don't know how much this is of an help
(It's not only sound in my opinion, as the forza is miles ahead of the DUM in feel)
+1. I use the Forza Noir Hybrid. Love it - sounds awesome.
- Forza cables are just very good in terms of SQ, build and value for money - I have my Ether C Flows ("ECFs") connected to a Fiio X7 AM2 (medium power) via a Forza Claire cable (all copper no silver) in the pic.
- I have a number of observations to make about the ECFs as they relate to the DUM cable, Forza Claire cable, Fiio X7 and Chord Mojo. I have been A-Bing these portable set ups for a while now.
1) The DUM cable, for an all copper cable, sounds surprising bright to my ears. Once I switched out the DUM to the Claire on the Fiio X7 AM2 (warmest module available but still a bit on the bright side), there was a slight improvement by reducing the top end in addition to the usual "sound stage improvements".
2) I owned the original Ether C which I found, like most others, a bit thin, bright, lacking in bass. When paired with the Sabre DAC of the Fiio X7 using the DUM cable, they sounded brittle, chalk on blackboard and almost unlistenable.
3) I have to agree with posters here and most of the internet that the Chord Mojo is kind of incredible especially as a pairing for the ECFs. Compared to the Fiio X7, the ECFs/Mojo combo has a warmer/fuller body sound, almost as if by reducing treble/"hiss"/digital sound, one focuses their mind on the vocal range and bass etc. Another comparison is that it's like putting in 1 black pad into the original Ether C although the main difference is that no treble/mid detail is lost - amazeballs!
4) ECFs with the DUM cable and Mojo sounds enjoyable already and with the Forza Claire, the combo satisfies even my slight basshead preferences (I am a Fostex/Denon fanboy). The resulting ECFs/Mojo/Claire end up sounding like a highly resolving, more neutral, more natural Fostex where I can still feel the sub-bass rumble! The bass texture compared to the Fostex/Denon is off the charts.
5) To my ears, ECFs/Mojo/Claire sound better than ECFs/Mojo/DUM > ECFs/Fiio X7 AM2/Claire > ECFs/Fiio X7 AM2/DUM - from warm to bright. ECFs/Fiio X7 AM2/Claire is not great but very listenable and currently my go-to portable. Even though the ECFs/Mojo sounds better, the Fiio X7 just has a form factor advantage - super convenient for walkabouts.
6) It almost seems like the DUM cable, ECFs, original Ether Cs were voiced on tube/hybrid equipment or analogue sounding solid state (Chord etc). So maybe to get back to the sound MrSpeakers intended, one cannot be using bright sounding equipment - Fiio X7 just is not ideal being a mediocre implementation of a Sabre DAC prone to sounding bright.
I love the ECFs/Mojo/Claire combo and can't wait for the Poly which will replace the Fiio X7 as my go-to portable.