Originally Posted by schlaget
Does anyone have experience with the INVICTA combined with a B22 and/or a Beyer T1?
I am really getting serious about upgrading my D100 to the invicta.
I wonder if the B22 still brings an improvment over the integrated headphone amp in the invicta which I read to be very good.
I can't directly answer your question but I have had experience using the Invicta with the original GS-X (not MkII version) which has been described as being very similar to the B22. Comparing the Invicta's internal amp in balanced mode vs GX-S (using HD800s): both amps present an almost identical improvement in sound staging, bass/midrange response and overall dynamic impact and headroom; however I felt that the Invicta's amp had the edge in terms of overall resolution and retrieval of fine low-level detail over the GS-X. The latter has been described as being a virtually transparent window (as is the B22) on the source, so I'm wondering if the perceived slight but definite improvement in resolution from the Invicta amp more likely means that the HD800 was just a better electrical match with the Invicta compared to the GS-X? The other "possible" variable could be the connection itself between the Invicta and GS-X -- impedence matching, cable properties, etc. To me that underscores the advantages of using the Invicta amp rather than an external amp, especially if you are not inclined to experiment with different cables, headphones, etc.
The one big advantage of the larger external amps like B22 and GX-S may be power output -- the Invicta is certainly more the adequate for dynamic HPs like HD800, T1, 701, etc, but maybe +/- for the planar HPs (but I have no experience with these). Amps such as the new GX-S MkII have beefier output which you may want to consider if planning to get HPs that require more power than the Invicta can supply. The Invicta is a one box unit, albeit with a truly amazing HP amp, but still limited by size with regard to power supply, heat dissipation, etc.
Hopefully this information will be of some use. Since you already have the B22, you can get the Invicta and then make a comparison between the internal amp and B22 to see which sounds better. I should add that all of the comments above refer to using the Invicta amp in balanced (differential) mode -- they may not entirely apply if comparing the two amps in single-ended mode.