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I have been playing around with Amp11 like forever !!! People has been asking me to publish and do the Amp11EX. Over so many irritations, wasting money in the trash…etc…And then there's still:
Amp12:
And probably missing a few mods ...
- W
- EXN
- EXS
BTW, @Maxx134 is enjoying the Original Amp11EX a bit

Ladies and gentlemen ! Presenting here is Amp11.2MUSE-X
It has everything the EX does and more , such as all high performances Polymer, Foils caps, tantalum cap from Vishay, Elna Silmic II, Cerafine, KEMET organic polymer
The name means it has transcended away from EX, and now with reinforced Power supply, MUSE8920 Op-Amps
The signatures is engaging and great depth, with timbres realisms in mind, the vivid textures while delivering it smoothly, excellent cues of placements and very dynamic. The main aim for this modifications were to optimize the timbres dynamic delivery from ROHM DAC.
Soundstage isn’t going to be comparable to Amp12, because of 2 vastly different output architectures. However, some will love the engaging feelings and vividity of the Amp11 VS the more diffused presentations on Amp12!
This is also the most expensive, the most labor intensive, the most risky, to make (only less expensive than Dx220Max-EX).
Tuning based on Dx320 and HD800S as a references
Be warned : Higher Gain, louder, and also consuming more analog battery as well. Also, removed 3.5mm


The only sad thing is that it took me forever to finish this to the point of satisfying. Now the MUSE is phasing out of production. The best time to get it will be now, before it would have gone to obsolete.
Also, if you are serious into DIY and want to know the detailed components, you can PM me. I wouldn’t publish it due to how crazily complex this build is.
Yes, Steve can also make it for sure

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