If there can only be 1 high end amp for IEM? HPA23RM, C9II, EA4, MK475

I love amps. But is there a difference for IEM and which is the best? Lets take a look at the top 4 amps I have on hand. 00:00 Introduction 01:54 Do you need a amp for IEM? 03:59 Overal Score 04:52 Amp Breakdown 10:13 Final Thoughts -------------------------------------------------------------------------------------------- IEM Measurements: https://zpreviews.com/2024/07/29/meas... Contact me for Collab/Reviews: Audio Reviews: https://zpreviews.com Photography Website: https://zpeaktures.squarespace.com/co... Email: zpeaktures@gmail.com Like my content? Support me and my reviews via Kofi! https://ko-fi.com/zpeaktures Instagram:   / zpeaktures   Audio Instagram:   / zp_reviews   Facebook:   / zpeaktures   Headfi: https://www.head-fi.org/members/tassa... Video Shot with Canon C200 Canon CN-E 18-80mm Sennheiser MKH 8060