KEFINE Delci AE IEM - vs KZ ZVX Pro - STD

Every tracked fact about the two, side by side - prices, history lows, ratings and measured tuning. No verdict: which one to buy is the visitor's decision, always.

Not this pair? Swap either side:

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Open head-to-head

KEFINE Delci AE IEM - 3.5mm kefine Now ₹7,920 at Concept Kart Lowest on record ₹7,128 on Friday, 25th Sept, 2026 ★★★★★ 4.5 4.5 · 18 reviews Full prices & history

KZ ZVX Pro - STD KZ Now ₹1,749 at Concept Kart Lowest on record ₹1,574 on Friday, 25th Sept, 2026 ★★★★★ 4.7 4.7 · 3 reviews Full prices & history

What is being compared

Both sides are in-ear monitors. The rows below are the facts each store publishes for this shelf - driver arrangement, impedance, sensitivity, plug and connectivity. A dash means the listing does not state that spec.

Spec kefine KZ

Impedance 28Ω —

Sensitivity 108dB —

Connectivity Wired Wired

Connector 2-pin 2-pin

Plug 3.5mm —

Measured tuning, side by side

Both curves are real community measurements (gold: kefine · ink: KZ). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

kefine KZ

Tuning distance ±0.84 dB RMS 95% match - Near identical. Computed on a shared 40-point log grid, 20 Hz–10 kHz. A measurement-space fact, not a promise two ears agree.

Bass · 20–250 Hz kefine −0.2 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means kefine plays louder there on the measured files; minus means KZ does.

Mids · 250–2,000 Hz Level Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means kefine plays louder there on the measured files; minus means KZ does.

Treble · 2,000–10,000 Hz kefine −0.3 dB Average level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means kefine plays louder there on the measured files; minus means KZ does.

What a curve cannot seeBuild, driver QC unit-to-unit, comfort, isolation, accessories, warranty and resale value sit outside the graph - usually what the pricier one is charging for.

Price over the last 30 days

Daily lowest price across every tracked store, from the site's own price history. The line is one product's own range - the two cards are not drawn to a shared scale.

KEFINE Delci AE IEM - 3.5mm Now ₹7,920 at its 30-day median Lowest on record ₹7,128 on Friday, 25th Sept, 2026 In stock at 4 tracked stores

KZ ZVX Pro - STD Now ₹1,749 at its 30-day median Lowest on record ₹1,574 on Friday, 25th Sept, 2026 In stock at 1 tracked store

Price gap right now ₹6,171 78% of the dearer one's price.

Stores with it in stock 4 vs 1 Active stores carrying each one right now - more stores usually means easier replacement and a steadier price.

The decision, factually

Cheaper right now KZ ZVX Pro - STD Lowest current price across all tracked stores - ₹1,749 vs ₹7,920.

Deepest discount ever seen KZ ZVX Pro - STD From each product's own recorded price history.

This page reports facts and expresses no opinion on which to purchase.

Keep going

EQ preset: kefine EQ preset: KZ All IEMs More comparisons