I am not speaking from experience - however, the EMT TSD15 works in heavier arms due to their low compliance. The lyras I have heard do have a kind of house sound and have an air and slight treble lift - I personally think they are very good although I have a softer spot for Transfiguration and Shelter Cartridges.
I don't know much about EMT voicing - although I am gonna get one for my EMT 950.
I don't know much about EMT voicing - although I am gonna get one for my EMT 950.