If you're looking for flagship performance at a reasonable price and you like full bodied, smooth signature with strong bass foundations, impressive resolution and treble refinement then you'd miss out not adding the Volt to your list. Make sure you have a proper source though to provide enough current to bring the best out of it. And if you have a bigger budget, Totem is a fantastic pairing that brings a more punchy, energetic, focused presentation as well as elite performance that matches much pricier flagships.
If you're looking for a smooth all rounder with a strong bass presence, a contrasting treble energy which makes it a fun listen especially on Pop and Rock then you should look into the Gravitas as it's a very serious proposition in the segment. The Gravitas stands out by it's treble extension granting it excellent resolution and a touch of refinement that is distinctive
If you're looking for a punchy and clear sounding IEM with great soundstage and fantastic imaging, then you'd be hard pressed to find a better candidate than the Fusion especially at its price point. The Fusion delivers great value for money, flawless technical foundations, a highly coherent tuning and a superb build. Competitors take note, a strong challenger hits the market and it hits hard!
If you’re looking for a hybrid with superb build and cable, class leading bass that is both fun and technically faultless, natural mids with slightly forward vocals and lead instruments and exciting treble then you’d be hard pressed to find a better alternative than DK-4001 for the price!
If you’re looking for a balanced natural IEM with great clarity and transparency that doesn’t compromise on bass, RHA CL2 is very natural sounding and engaging, then you might have found just the right IEM for you. If you’re keen on treble sparkle and/or sensitive to upper mids you should make sure this won’t be a blocker for you as its lower treble are tuned conservatively while upper mids are more daring. If you use the CL2 mainly on the move with the neckband, this shouldn’t be an issue.