ECSB has more power and can deliver more current than ECBA, ECSB can drive speakers ECSB 4W @ 4Ω/8Ω 2W @ 32Ω 400mW @ 300Ω vs ECBA 1.5W @ 32Ω...
I have almost exactly the same experience with you but on the A90 Amp. It completely flatten the soundstage and is the most inorganic, lifeless...
I have a GSX Mini incoming for my HD800, probably in two weeks or so. I had a GSX Mk2 before though, and the GSX Mini being just so slightly...
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