Thanks for the reply Flinkenick.
It's probably not as warm as the Rhapsodio Solar. The highs extend very well, the mid-range is not recessed but not forward either - just very accurate and clean, but the bass probably has less quantity than the Solars - snappy and striking, but not too much.
The Silverfi IEM2 sounds like it would pair well. Besides the Rhapsodio 2.98, are there any other cables you would recommend?
Sorry, totally forgot to answer. Maybe it's easier if you mention which iem we're talking about? The Audiominor Mahogany is also a nice warm/musical copper btw.