Introduction

Brainwavz is MP4Nation's own brand. Focusing on mid-end headphones at a decent price point, MP4Nation sells anything from in-ears to tablets and car systems, but we will take a good hard look at their new HM9 set of headphones today. These feature a 40 mm Ø dynamic driver setup and lush pleather pads. The headphones are supra-aural/on-ear headphones, and their close-back design should give them a good amount of noise attenuation, which should make them good for use on the go. Currently available on pre-order for $119, these will eventually be in stock for $149, which drops them right into the price range of such great headphones as the KRK KNS-6400 and KNS-8400s. The $100 to $150 price range is highly competitive, and you have to do a lot to stand out from the crowd. We put the HM9s through their paces to see if they can manage just that.

Specifications

• Transducers/Drivers: Dynamic, 40mm
• Rated Impedance: 40ohms Closed Dynamic
• Sensitivity: 104dB at 1mW
• Frequency range: 10Hz ~ 24KHz
• Distortion: <= 0.3% @ 94dB
• Channel balance: =< 2dB (at 1000Hz)
• Maximum input power: 1000mW
• Cable length: Detachable 1.3 meters (2 pairs) & 3 meters
• 1 year warranty

The Package

MP4Nation ships the HM9s in a fairly large box stuffed with goodies.


The HM9s come with an extensive bundle. It consists of a carrying case, a long cable, short cable, and short microphone cable.