While waiting for a detailed response fm Raul (& others no doubt), I can give you a quick comparison b/ween Colibri & Allaerts on someone else's S Yorke TT (Burmester electronics, large orchestral music).
The Allaerts was better by comparison (listening order, Colibri then MC2). Much better (listening order reversed). Interestingly, "better" meant smooth & dynamic presentation. BTW, while the MC seemed to pick a max of info -- as did the Colibri -- the perception of surface noise was insignificant (maybe because of the rendition of music).
Please note that the above are no more than quick impressions on two outstanding cartridges.
The Allaerts was better by comparison (listening order, Colibri then MC2). Much better (listening order reversed). Interestingly, "better" meant smooth & dynamic presentation. BTW, while the MC seemed to pick a max of info -- as did the Colibri -- the perception of surface noise was insignificant (maybe because of the rendition of music).
Please note that the above are no more than quick impressions on two outstanding cartridges.