The crack is sudden and intimate: a microsecond of brittle glass in a warm analog hug. It arrives on transient peaks, on the punctuation of a vocal phrase, or under the plucked sting of a guitar string. At first it is tiny, almost apologetic—a hairline fissure threading the midrange—then it blooms, inserting itself like a wink of static that refuses to be overlooked. Where the CLA-2A promises velvet, the crack offers contrast: an unexpected shard that reframes the whole performance.