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Moondrop Quark 2 specifications and in-depth review

Moondrop Quark 2

Manufacturer: Moondrop

The Moondrop Quark 2 is an in-ear monitor from Moondrop built around a single dynamic driver unit. It comes equipped with an in-line control panel and a built-in microphone, making it a straightforward wired listening option with hands-free call functionality. The cable terminates in a USB-C connector, which reflects a shift toward modern digital audio interfaces, and measures 1.2 meters in length.

On the technical side, the Quark 2 uses a liquid crystal polymer diaphragm within its dynamic driver, which is a material known for its stiffness-to-weight characteristics. Impedance is rated at 34 ohms, and total harmonic distortion is specified at no more than 0.05% when measured at 1 kHz. The stated frequency range runs from 20 Hz up to 20,000 Hz. The cable uses a 2-pin connector with a 0.78 mm pitch, though it is not detachable, and no travel case is included in the package.

Pros
  • The built-in microphone and in-line control panel allow for hands-free calls and media management without needing a separate device
  • A USB-C termination means it works with modern devices that have moved away from older audio jacks
  • THD is specified at no more than 0.05% at 1 kHz, reflecting a low distortion figure at that reference frequency
  • The 2-pin 0.78 mm connector is a widely used standard in the IEM space, making future cable replacement straightforward if needed
  • At 34 ohms impedance, the earphones sit in a range that is generally compatible with typical consumer source devices
Cons
  • The cable is not detachable, so any cable damage means the entire unit is affected and cannot be resolved by a simple cable swap
  • No travel bag is included, offering no built-in storage or protection solution when carrying the earphones
  • A single dynamic driver configuration means there is no dedicated driver for different frequency ranges, unlike multi-driver setups
  • The fixed cable design limits any option to change the connector type or upgrade the cable for different use cases
Who is this for?

This IEM works well for everyday listeners who want a straightforward wired in-ear monitor with modern connectivity, particularly those using devices with a USB-C audio output. The built-in microphone and in-line control panel make it a practical choice for people who regularly take calls or manage playback on the go. At 34 ohms, it is also well-suited for users pairing it directly with smartphones or laptops without requiring a dedicated headphone amplifier.

Who is this NOT for?

Users who prioritize long-term cable flexibility will find this unit limiting, as the non-detachable cable cannot be replaced or upgraded if it wears out or becomes damaged. Listeners seeking a more refined or specialized sound presentation through driver separation may find that a single dynamic driver configuration does not meet their expectations. The absence of a travel bag also makes it less practical for users who need a ready-made storage solution for regular transport or commuting.

General info:

Driver configuration 1DD
Type of drivers Dynamic driver (DD)
Diaphragm material Liquid crystal polymer (LCP)
has a built-in microphone ✓
travel bag is included ✕
Has an in-line control panel ✓

The Moondrop Quark 2 uses a single dynamic driver (1DD) configuration, with the driver employing a liquid crystal polymer (LCP) diaphragm. It includes a built-in microphone and an in-line control panel, adding everyday usability for calls and media control. A travel bag is not included with the unit.

Specifications:

drivers count 1
impedance 34 Ohms
Total harmonic distortion (THD) ≤0.05% (@1kHz)
lowest frequency 20 Hz
highest frequency 20000 Hz

The Moondrop Quark 2 is built around a single driver and carries an impedance rating of 34 ohms. Total harmonic distortion is specified at ≤0.05% measured at 1 kHz, indicating a low distortion threshold at that reference point. The stated frequency response spans from 20 Hz at the low end to 20,000 Hz at the top of the range.

Cable:

Connector type USB-C
Pin connector 2-Pin (0.78 mm)
cable length 1.2 m
has a detachable cable ✕

The Quark 2 comes with a 1.2-meter cable that terminates in a USB-C connector, connecting to the earpieces via a 2-pin plug with a 0.78 mm pitch. The cable is not detachable, meaning it is fixed to the earpieces and cannot be swapped out for an alternative.

Final Verdict

The Moondrop Quark 2 is a single dynamic driver IEM that keeps its proposition clear and focused. Its USB-C termination paired with a built-in microphone and in-line control panel makes it a practical daily-use option for listeners on modern devices who want wired audio without added accessories. The low THD figure and 34-ohm impedance reflect a unit designed to perform reliably with standard consumer sources. Where it falls short — most notably the fixed cable and absence of a travel case — are trade-offs that prospective users should weigh against their own usage habits. Overall, the Quark 2 suits those who want a no-fuss, connectivity-forward in-ear monitor for routine listening and call use.