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blorg t1_iuidiex wrote

It's pretty marginal particularly with something like the ZS10 Pro which is extremely sensitive and doesn't need higher power, in fact the less power the better for this IEM. The AZ09 (or the Pro version) will also fit the ZS10 Pro a lot better and will be a lot more comfortable, the UTWS5 won't attach as firmly and the hooks are much larger and less comfortable.

I have all of these items, I doubt I'd be able to tell the difference between the UTWS5 and the AZ09/Pro with the KZ ZS10 Pro.

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