If you have a few higher impedance headphones like the HD600, HD650 and HD800 then the Elise would be my choice, its a bit on the warmer side with the stock tubes IMO. If you have a variety of headphones from low to high impedance then the Ember would be a better choice. I had another Head-Fi member over with his Elise and we did some comparisons but I had already sold my HD600 so I didn't get to try the Elise with them but with the HD650 it was way too warm but with the HD700/HD800 they were a good pairing with the stock tubes in the Elise. Here's a few picture of the Elise when my friend was over:I returned it. I saw people said different impedance do not sound very different. But the price is difference.
I also have interest in Ember. A headfier told me he didn't think there is much improvement of Elise over Ember.
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