....... but the combination of the c1 tweeter and the razor sharp resolution of the pass might be tipped too hot.
Dpac996
Good observation, but many considered the C1s to be boring and volume needs to be cranked up to sound good. This is where the XA.5 series paired with good front end and sources would be a favorable match to bring out the best of the C1's capabilities. It woudn't be too hot, IME.