
Cooler Master MH-670
Score: 87/100
JBL Quantum 400
Score: 88/100Rankings

The JBL Quantum 400 is a wired over-ear headset delivering high-fidelity audio, virtual surround and a feature-rich software suite, aimed at competitive gamers and streamers who don't need wireless capability. Its strong sound and mic performance are offset by a lack of ANC and Windows-only software.

The Cooler Master MH670 offers a premium build with low-latency 2.4 GHz wireless, virtual 7.1 surround and solid audio performance, making it a versatile choice for multi-platform gamers. Its drawbacks include an average mic, micro-USB charging and the need to enable surround manually.
| Attribute | ![]() | ![]() |
|---|---|---|
50 mmbest | 50 mmbest | |
15 Hz | 20 Hzbest | |
25,000 Hzbest | 20,000 Hz | |
110 dBbest | 98 dB | |
| ↓ lower better | 346.5 g | 274 gbest |
| ↓ lower better | 32 ohmsbest | 32 ohmsbest |
-40 dBbest | -40 dBbest | |
50 Hz | 100 Hzbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(3) | ||
Frequency Response (Low) (Hz) | 15 Hz | 20 Hz |
Frequency Response (High) (Hz) | 25000 Hz | 20000 Hz |
Sensitivity (dB) | 110 dB | 98 dB |
Microphone(3) | ||
Microphone Type | Detachable flexible boom mic | Directional (cardioid/unidirectional) boom microphone |
Mic Frequency Response (Low) (Hz) | 50 Hz | 100 Hz |
Mic Frequency Response (High) (Hz) | 18000 Hz | 10000 Hz |
Connectivity(3) | ||
Wireless Capability | true | false |
Cable Length (m) | 1.5 m | 1.2 m |
Supported Platforms | PC, PS4, Xbox One, Nintendo Switch, mobile devices | PC, PlayStation, Nintendo Switch, VR, Xbox, mobile |
Build & Design(2) | ||
Weight (g) | 346.5 g | 274 g |
RGB Lighting | false | true |


Products in the top-left offer the best value (high score, low price).

Professional reviewers rate the MH670 around 4/5, noting its premium construction, solid audio fidelity, and versatile dual-connectivity as standout strengths, while pointing out the average microphone and limitation of virtual surround to wireless mode.
Everyday users highlight lag-free wireless audio, comfortable fit and strong bass, but complain about the average mic, ear-pad warmth, lack of USB-C and extra steps needed to activate virtual surround.

Reviewers praise its precise audio reproduction, effective boom mic and the added value of QuantumSURROUND and a Discord-certified chat dial, while noting the lack of wireless and Windows-only software as limitations.
Everyday users love the headset's sound quality, comfort and mic clarity, but many complain about cable durability, the bulky build and the fact that software customization is only available on Windows.
“Lag-free wireless audio makes me feel untethered.”

“Microphone picks up background noise.”

“Ear pads get warm after long sessions.”


