Summary of "I'll Never Listen To Music Normally Again"

Overview

The creator explored the in-ear monitor (IEM) hobby after discovering a rugged DemerBox DB2 speaker, then focused on comparing several IEMs across price tiers to see what changes the listening experience. The video combines objective measurements, technical explanation, and subjective listening impressions to produce practical buying recommendations.

Main IEMs tested

Kiwi Ears Cadenza 2 (Cadenza 2OS) — single dynamic driver, ≈ $50
- Described as balanced, warm, and very comfortable for long listening sessions.
Kiwi Ears Bell — single dynamic driver, ≈ $30
- Marketed as “rich natural tonality with deep bass and smooth treble.”
KZ ZS10 Pro — hybrid: 1 dynamic driver + 4 balanced armatures, impedance 24 Ω, sensitivity ≈ 111 dB/mW, ≈ $30–36
- Easy to drive and highly sensitive.
Later comparisons included mid- and higher-end models (examples: a liked ~$170 hybrid pair and Kiwi Ears Astrals).

Measurements and tools

The creator used measurement graphs (sound signatures or “squiggles”) from the squig.link database.
Important caveats:
- Measurement rigs vary (different couplers, microphones, and setups), so graphs from different measurers aren’t strictly comparable.
- Professional measurement rigs cost much more than simple home setups; differences in methods matter.
The graphs are useful guidance but don’t replace real listening.

Driver types and tuning

Driver types:
- Dynamic drivers (DD): typically provide good bass impact.
- Balanced armatures (BA): fast, detailed, but less bass by themselves.
- Hybrids (DD + BAs): combine strengths to target a desired signature.
Tuning approaches:
- Mechanical/acoustic: physical design, porting, damping, materials.
- Electronic: digital DSP tuning.

Practical real-world issues

Modern phones often lack headphone jacks, so you need a USB-C DAC/amp dongle.
Source matching matters:
- High-sensitivity IEMs (like the ZS10 Pro) can be painfully loud on some cheap dongles.
- Some DAC/dongles include finer volume control, internal attenuation or stepped volume to allow very low listening levels.
Fit & comfort:
- Shape, housing size, ear tips (silicone vs foam, different shapes), and cable management strongly affect comfort and perceived sound.
- Poor fit ruins bass and overall experience; trying multiple tips and setups matters.

Subjective impressions and comparisons

Caveat: these are the creator’s impressions based on his listening tests and preferences.

Kiwi Ears Cadenza 2 (≈ $50)
- Pros: very comfortable, warm/relaxing signature, low listening fatigue, excellent daily value; became the creator’s go-to IEM.
- Cons: not as analytically detailed or “oomphy” as higher-end models.
Kiwi Ears Bell (≈ $30)
- Pros: more balanced than the Cadenza 2, smooth highs, natural tonality.
- Cons: less distinctive compared to the ZS10 Pro in this comparison.
KZ ZS10 Pro (≈ $36)
- Pros: subjectively sounded best among the three for the creator; fuller-bodied, punchy bass, clear separation thanks to hybrid design.
- Cons: high sensitivity and low impedance made volume control difficult on some dongles.
Higher-end IEMs (~$170+; e.g., a mid-tier hybrid and Kiwi Ears Astrals)
- Pros: greater detail, clarity, separation; more natural/analytical presentation.
- Cons: larger housings can cause fit issues for small ears; higher cost.

Aggregate pros and cons

Pros

Excellent value exists in the <$50 range — big improvements over generic earbuds for modest spend.
Hybrid driver IEMs can give fuller sound and better separation for the money.
Mid-range models ($50–$200) provide better tuning, comfort and detail.
Objective charts are a useful guide but not definitive.

Cons

Phone dongles and source pairing can make or break the experience; sensitive IEMs need fine volume control.
Measurement graphs are only comparable when produced on the same rig; cross-rig overlays can mislead.
Fit and ear-tip choice are major variables — some IEMs won’t be comfortable for everyone.
More drivers ≠ better sound; tuning and driver quality matter more than driver count.

Practical takeaways and recommendations

Don’t rely solely on frequency-response or “squiggle” graphs — listen with familiar music and proper ear tips.
Everyday best-value pick: Kiwi Ears Cadenza 2 (~$50) — comfortable, warm, low fatigue; recommended as daily carry.
For analytical/critical listening: step up to mid/high-tier hybrids or models like Kiwi Ears Astrals for better detail and separation.
Budget pick with punch and clarity: KZ ZS10 Pro (~$36) — sounds great but pairs best with a dongle that has fine volume control.
If your phone lacks a headphone jack: choose a DAC/dongle with finer volume steps or attenuation options to handle high-sensitivity IEMs.

Unique points raised

Discovery of the DemerBox DB2 speaker led the creator into the IEM rabbit hole.
squig.link is a large resource for measured sound signatures.
Measurement methods often use silicone-ear couplers; differences in measurers and rigs make overlays unreliable.
Technical specs like impedance and sensitivity govern how easy an IEM is to drive.
Cheap dongles can be excessively loud on high-sensitivity IEMs; some DACs include attenuation/volume stepping.
Tuning can be mechanical or electronic; both approaches are common.
Comfort (housing size, tips, cable) can matter more to real-world use than driver count.
Value curve: biggest perceptible jump often occurs from cheap earbuds to slightly above-budget (~$30 → $50) before diminishing returns.

Contributors and who said what

Narrator (main creator): purchased gear, performed listening tests, described impressions and verdict.
James Demer (DemerBox founder): explained tuning processes (mechanical vs electronic).
“Chronicle”: lent gear and dongles for better source testing.
Office colleagues (e.g., Jake): provided anecdotal comfort feedback; Jake liked the Cadenza 2 enough that the creator bought him a pair.
Lindell and Critical: sent premium products for review; the creator tried them.

Concise recommendation: For a substantial upgrade from earbuds without spending much, start around $50 (Kiwi Ears Cadenza 2 recommended for comfort and daily use). If you want more analytical listening, step up to mid-tier hybrids or models like Kiwi Astrals. Always test fit with your music and use a DAC/dongle with fine volume control for sensitive IEMs. Measurement graphs are helpful but do not replace listening.