7Hz VS Moondrop

Salnotes Zero 2 —vs— Chu II

7Hz Salnotes Zero 2 and Moondrop Chu II share the published Dynamic category, but their listed configurations are 10mm Dual-Cavity Dynamic and 10mm Dynamic. Check the actual driver description for each version; a shared category is not evidence of the same tuning or sound.

7Hz

Salnotes Zero 2

Dynamic
Driver architecture 10mm Dual-Cavity Dynamic
Impedance 32Ω
Sensitivity —
Tuning reference —
Moondrop

Chu II

Dynamic
Driver architecture 10mm Dynamic
Impedance 18Ω ±15% @1kHz
Sensitivity 119dB/Vrms @1kHz
Tuning reference VDSF

Comparison Notes

Salnotes Zero 2 lists 32Ω and —; Chu II lists 18Ω ±15% @1kHz and 119dB/Vrms @1kHz. These are the source's original fields. A missing value or measurement basis must stay missing; do not convert it into a phone-volume or amplifier verdict.

Side-by-Side Specifications

Pair Salnotes Zero 2 Chu II
Config 10mm Dual-Cavity Dynamic 10mm Dynamic
Driver architecture Dynamic Dynamic
Impedance 32Ω 18Ω ±15% @1kHz
Sensitivity — 119dB/Vrms @1kHz
Tuning reference — VDSF
Price range $0-$50 $0-$50

Fields to Compare Next

At least one sensitivity value lacks a voltage/power reference or is unconfirmed. These numbers cannot rank loudness, amplifier needs or sound quality.

Salnotes Zero 2's record cites Linsoul (checked 2026-09-09); Chu II's cites MOONDROP (checked 2026-09-09). The linked source records below preserve the exact URLs and model-specific limitations. A retailer listing and a manufacturer sheet are not independent matched measurements.

Both models appear in the historical $0-$50 directory band. Compare the exact connector, nozzle or edition, and current delivered price before choosing between Salnotes Zero 2 and Chu II; the band is not a live offer.

Sources and specification limits

GK AudioLab publishes GK product information. Comparisons involving GK models are brand-authored; source specifications are not independent listening tests.

7Hz Salnotes Zero 2

Retailer listing: Linsoul · Source checked:

The inspected retailer specification lists the driver and impedance but does not provide sensitivity. An earlier unsupported sensitivity value has been removed.

Moondrop Chu II

Manufacturer: MOONDROP · Source checked:

Sensitivity is stated per RMS volt. Preserve any stated test frequency and tolerance; it is not directly comparable with a per-milliwatt figure.

— means the inspected source does not establish a reliable value.

Price bands are historical directory categories, not current offers. Confirm the exact model, nozzle, cable, local price and return terms with the seller.