7Hz Aurora 1 DD+1 Planar +2 BA IEMs HiFi In-ear Monitor Earphone

The 7Hz Legacy

7Hz made a global wave in the past with several of its most popular models. IEMs such as the Salnotes Zero, Dioko, and Timeless gathered massive popularity due to their amazing sound-to-value performance. 7Hz has proven itself to the worldwide audience as a trusted manufacturer of high-performance IEMs and will continue its legacy with better innovations and stronger community engagement. 

Tribrid Drivers Configuration

The Aurora utilizes a double dynamic driver system composed of 1 x 12mm large diaphragm drivers, 2x fullranged balanced armature drivers, and a 6mm ultra-treble planar driver.  This design is significant for a few reasons. Firstly, by utilizing a multi-driver design, the frequency spectrum can be divided between multiple drivers, which reduces the driver load and increases output and sound quality. Second, by using a tribrid configuration, the most optimal sound characteristic can be achieved to bring out the best of each driver. One of the common faults of hybrid or tribrid designs are a mixing of timbre characteristics, which results in a disjointed sound. The Aurora addresses this by optimizing each driver type to respective frequency ranges at softer crossovers to create a coherent sound across the entire spectrum. 

12mm Composite Dynamic Driver

The custom 12mm composite diaphragm driver features a double coil system to significantly enhance the low-end output at reduced distortion rates. Tuned specifically to the bass, this driver provides well-textured and powerful low, but in a controlled and professional tuning. Enhanced impact, speed, and texture can be felt by the composite DD bass system.

Dual Balanced Armature Drivers

A custom full-range balanced armature was selected to bridge the gap between the dynamic and planar drivers. Our balanced armature driver has an intermediate timbre between the two driver types, as well as excellent midrange performance. 

6mm Ultra-Treble Planar Driver

A  6mm diaphragm was utilized in our custom micro flat-panel planar driver to achieve ultra-treble extension for crystal clear treble. By adjusting airflow to the drivers, an excellent sense of air in the atmosphere and micro-detail retrieval can be achieved by effectively extending the treble past 40kHz. 

Balanced Tuning Profile

The Aurora was carefully tuned using a three-way passive crossover network to best display each dynamic driver’s full potential. The tuning has a powerful bass presence at 10dB impact, which smoothly transitions to slightly warm and natural mids. The treble is clear and detailed but also maintained under 10dB to provide a comfortable yet discerning listening session.

Professional Manufacturing Process

The Aurora’s shell was carefully crafted using professional 3D printing with imported medical-grade UV resin. This creates a high-precision shell that is safe to the skin, comfortable, yet also durable. Furthermore, the faceplates are composed of unique titanium filaments that create a one-of-kind design on each unit. 

Custom Detachable Cable

The Aurora is featured with a detachable gold-plated single-crystal copper cable with 0.78mm 2-pin connectors, which is interchangeable. The cable has a modular 3.5mm/4.4mm interchangeable plug system to fit any of your devices. 

Specs:

Connector: 0.78mm 2Pin

Plug: 3.5mm, 4.4mm

Drivers: 1 DD+1 Planar +2 BA