Electronics

A 1DD+3BA hybrid IEM tuned warm and smooth, co-developed with Listener from Headphones.com as a deliberate departure from the HEXA's brighter signature. Reviewers compared it to the Sennheiser HD650 of the sub-$100 tier: richer, darker, more relaxed. The upper treble tapers off, which is either the whole point or a dealbreaker depending on who's listening.

This 1DD+3BA hybrid became the benchmark for sub-$100 tuning shortly after launch in late 2022, and review coverage since hasn't found a clear replacement. The sound is accurate, uncolored, and close to neutral, so it can either be exactly what you're looking for or a reason to shop around.

A single dynamic driver IEM with a metal housing, a warmer-than-neutral sound signature, and a modular cable with 3.5mm and 4.4mm plugs sitting in the box before you even look up what 4.4mm balanced means. For newcomers, reviewers still call it a default first-buy under $100; for listeners who already own a few sets, the case gets harder against the TRUTHEAR HEXA and Simgot EA500LM.

A $25 single-DD entry-level IEM that answers the original Salnotes Zero's two nagging complaints: bass that felt too lean and treble that could get sharp. The consensus lands on warm-neutral with real sub-bass weight and smoother highs, while the thin cable and mediocre tips are the one part of the package that nearly undercut the value case.