well, I listen to music at least 2 hrs straight any day before sleep, so I believe I am not that not interested to music. for ATC I did once listen in a Hifi friend's home, he got a pair of Vivid Giya G1 and then get a loan pair ATC SCM50 and magnipan 3.7i. the magnipan sounded weird and then the Giya being the best, ATC never got me impressed, the tonal balance shift quite noticeably when walking around, plus the bass is really not impressive for it's size, that part did make the mids in vocal music more stand out but still, unimpressive.
As for dynamics, I know it isn’t the legendary ATC mid, but it’s still is the ATC in house woofer from SCM19.
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Didn’t really look like it will got better transient compared to entry level, analogue 8030C
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It’s still a pretty decent speaker, but don’t really convinced ATC is doing better in those departments while sacrificing directivity (off axis uniformity) or on axis flatness compared to similar driver size competitors