I don't think you'll be disappointed with either. I have had three main carts on my table for the past couple years. A Koetsu RSP, a Lyra Atlas and a SoundSmith MIMC star and most recently traded up to a SS Sussurro.
To my ears, the SoundSmith sits in the middle of the Koetsu and Lyra spectrums of emphasis. It is not distracting on the high end like the Lyra can sometimes be with its super realistic extension and it is not as romantic and groovy as the Koetsu. The SoundSmith carts do get out of the way in all the right ways. Makes me forget about what cart is on and enjoy the music. You can tell you are getting everything off the recording without commentary. I really love how those SS low output carts sound. So quiet too!
Disclaimer...my system, my ears, haven't listened to the Etna.
To my ears, the SoundSmith sits in the middle of the Koetsu and Lyra spectrums of emphasis. It is not distracting on the high end like the Lyra can sometimes be with its super realistic extension and it is not as romantic and groovy as the Koetsu. The SoundSmith carts do get out of the way in all the right ways. Makes me forget about what cart is on and enjoy the music. You can tell you are getting everything off the recording without commentary. I really love how those SS low output carts sound. So quiet too!
Disclaimer...my system, my ears, haven't listened to the Etna.