BLON x HBB Z300 Review: Ranked #484 of 641

Last updated: October 13, 2026

The BLON x HBB Z300 ranks #484 out of 641 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.

Brand: BLON

Prices on this page were last checked October 12, 2026 at 4:13 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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BLON x HBB Z300 - ranked #484 of 641 In-Ear Headphones · Editor's rating 3.4/5

#484 BLON x HBB Z300 Discontinued eBay

Pros: Bass is lifted about 2.7 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. It uses 1 x 10mm dynamic with an easy 28 ohm load.

Cons: Discontinued, so it is mainly found used. Presence sits about 4 dB low with a 4.7 dB dip near 6.1 kHz, so vocals and instruments lose some bite. A 5.1 dB peak near 8.2 kHz can make cymbals and sibilance sound sharp.

ReleasedJun 2023 (3 years ago)
BackClosed
ConnectionWired
Deviation From Target2.32 dB standard deviation
Driver TypeDynamic
Drivers1 x 10mm dynamic
Form FactorIn-ear
Harman Preference Score67 (median of 30 squig.link measurements, calibrated to AutoEQ)
Impedance28 ohms
Sub-bass ExtensionWithin 6 dB of target down to 20 Hz (+0.7 dB at 30 Hz)
Tonal Tilt-0.83 (negative is warmer, positive brighter)

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