# KZ EDZ
- **Product Page**: https://chi-fi.top/iem/kz-edz
- **Category**: Earphones
- **Brand**: KZ
- **Price**: from $12 USD
- **Summary**: EDX series collector's edition earphones with ultra-wideband dynamic driver
- **AliExpress**: https://s.click.aliexpress.com/e/_c3WXvw2x

## Pros
- Self-developed ultra-wideband dynamic driver covers 7 Hz to 45 kHz with fast transients
- Dual damping system (nozzle damper and metal filter) tames harsh high-frequency peaks
- Collector's edition tuning refines the EDX legacy with punchy bass and clean vocal clarity
- Ergonomic resin housing with gold-accented metal faceplate inlays
- Detachable 0.75 mm 2-pin silver-plated cable allows easy replacement
- High sensitivity (107 dB) drives effortlessly from phones, laptops, and gamepads

## Cons
- Stock accessories are minimal, shipping with standard silicone tips and a basic cable
- Soundstage presentation is intimate rather than expansive
- Engaging, energetic V-shaped tuning favors pop and rock over reference neutrality

## Specifications
- **Release year**: 2025
- **Drivers per side**: 1
- **Driver types**: dynamic
- **Impedance**: 24 Ω
- **Sensitivity**: 107 dB/mW
- **Frequency response, low end**: 7 Hz
- **Frequency response, high end**: 45000 Hz
- **Cable connector**: 0.75 mm 2-pin
- **Plugs**: 3.5 mm
- **Shell material**: Resin with metal faceplate

## Details & Specifications
The KZ EDZ is a collector's edition in-ear monitor from Knowledge Zenith, designed as the culminating finale to the brand's long-running, best-selling EDX series. Building on iterations from the original EDX, EDX Pro, and EDX Pro 2, the EDZ introduces a newly developed ultra-wideband, long-excursion dynamic driver capable of reaching an expansive 7 Hz to 45,000 Hz frequency response. This acoustic setup delivers deep, impactful sub-bass punch and rapid transient response without congesting the midrange.

To resolve the sharp treble sibilance that challenged earlier ultra-budget models, KZ integrated a dual-stage damping system consisting of an internal nozzle tuning damper paired with a protective metal acoustic filter. This mechanical filtering smoothens high-frequency extension, rendering vocals and cymbals with cleaner definition. The earpieces feature skin-friendly transparent resin cavities finished with gold-trimmed metal faceplate inlays, and connect through a detachable 0.75 mm 2-pin silver-plated dual-parallel cable terminating in a 3.5 mm jack. With a 24 Ω impedance and 107 dB/mW sensitivity, the EDZ drives cleanly and reaches full dynamic volume straight from smartphones, laptops, and game controllers.

- Self-developed ultra-wideband, long-excursion dynamic driver
- Dual-stage acoustic damping system with nozzle damper and metal sound filter
- Frequency response 7 Hz to 45,000 Hz
- Impedance 24 Ω, sensitivity 107 dB/mW @ 1 kHz
- Ergonomic transparent resin cavity with inlaid metal faceplates
- Detachable 0.75 mm 2-pin silver-plated dual-parallel cable (1.2 m) with 3.5 mm plug
- Over-ear ergonomic contour with memory ear hooks and passive noise isolation
- Released early 2025

> Picks come from research (reviews, specs, community consensus), not hands-on testing. Prices are USD "from" prices and may be out of date. Buy links are affiliate links.