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.
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.
Specbinarykiwi
Driver configurationDynamic (DD)—
ConnectivityWired—
Connector2-pin 0.78mm—
Plug3.5mm/4.4mm—
Measured tuning, side by side
Both curves are real community measurements (gold: binary · blue: kiwi). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.
binarykiwi
Average level per band, relative to that curve's own 200 Hz–1 kHz middle - a taller bar plays louder there on the measured files. Same colours as the chart above.
Wearing your own earphones or headphones? Pick them here and the player pre-corrects for their sound, so the demo plays the target tuning itself - not both mixed together.
Same signal through both tunings at once - slide to blend. Start on pink noise for the clearest read.
Tuning distance±0.72 dB RMS96% 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 Hzbinary −0.2 dBAverage level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means binary plays louder there on the measured files; minus means kiwi does.
Mids · 250–2,000 Hzbinary +0.2 dBAverage level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means binary plays louder there on the measured files; minus means kiwi does.
Treble · 2,000–10,000 Hzbinary +0.7 dBAverage level difference in this band, both curves aligned to their own 200 Hz–1 kHz mean. Plus means binary plays louder there on the measured files; minus means kiwi 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.
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Binary Acoustics - Dynaquattro 4 Dynamic Driver IEM
binary
At its lowest recorded price
★★★★★ 4.5 4.5 · 10 reviews
Full prices & history
