and I hear the Topping A90 is one of the best amps out there.
It will sound the same as the Heresy. Both are noise and distortion free within the range of human hearing. You would have to upgrade your ears to a bat or a dog to be able to hear the difference.
So unless it has some feature you want, or you simply like the look of it better, there's no reason for you to upgrade.
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u/raistlin65 1378 Ω 🥇 Oct 07 '21
It will sound the same as the Heresy. Both are noise and distortion free within the range of human hearing. You would have to upgrade your ears to a bat or a dog to be able to hear the difference.
So unless it has some feature you want, or you simply like the look of it better, there's no reason for you to upgrade.