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- Sep 10, 2019
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But how do people find this inaccurate amp which does change the sound how they would like? (well, other than by demoing them) By and large, testimonials of how amps sound are unreliable due to perceptual biases. So you can't really rely on subjective reviews.
Certainly, there are a very small number of individuals who might look at measurements of distortion characteristics for an amp and guess how it could sound different. But the vast majority of people searching for amps to change their headphone's sound can't do this.
Making audio buying decisions is a lot like shopping for any large/important investment, such as a car: you use subjective reviews to help you narrow down your options, but then you have to test drive before you buy. There's no way to buy a car blind and be sure that you got the best bang for your buck because no reviewer shares your preferences. You can certainly buy on faith and be happy, but it's a gamble. Amps (and any audio gear) are no different. The only way to know if an amp is for you is to empirically test it for yourself. Then, after you've owned it for a while and you start to feel like there must be more, you start the process all over again. That's really what this hobby (or any hobby) is all about, after all!
My advice, narrow your choices down to 2-3, buy them all if you can afford to, A/B them, keep one, return the rest. It'll cost you shipping, maybe. The time is worth it if you enjoy this sort of thing. Otherwise, you just have to buy and be happy with your choice on faith. And there's nothing wrong with that!