CHORUS 400
Portable Bluetooth DAC and Headphone Amplifier
A Master of All Trades
CHORUS 400 brings together years of expertise in developing DACs and headphone amps. Within a compact package, it fits flagship-level features such as a multi-stage audio architecture and precision power supply system comparable to other high-end players and DAC/headphone amp combos. It is truly a master of all trades that will once again become a new standard amongst Bluetooth headphone amps.
Premium Design & Build
The sturdy 3D aluminum alloy body with a back cover made of innovative fully bonded raw leather, combined with the two-section front panel design helps to provide a comfortable grip. The premium materials not only enhance durability but also provide a luxurious feel that matches the exceptional sound quality.
Key Specifications:
- Aluminum alloy body with leather back
- Two-section front panel design
- Compact dimensions: 16.3×41.2×86.6mm
- Weight: Only 73.4g
Dual Flagship DAC Chips
Inside the CHORUS 400 are two ESS ES9069Q DACs based on the fourth-generation 32-bit HyperStream architecture, achieving high performance while using less power. This architecture helps to further reduce digital noise within the DAC, allowing it to hit 130dB dynamic range and -120dB total harmonic distortion. The result is a richer, musical sound against a cleaner audio background.
Key Specifications:
- Dual ESS ES9069Q DACs
- 130dB dynamic range
- -120dB total harmonic distortion
- Fourth-generation 32-bit HyperStream architecture
Sound Tuning in Your Hands
CHORUS has worked constantly to deeply integrate software and hardware in order to create user-friendly apps and web interfaces. The continuously refined proprietary PEQ adjustment algorithms allow you to finely adjust EQ frequency points, gain, bandwidth, and Q value to your liking. This fully lets you simulate or correct the frequency response curve of various headphones. Additionally, you can import, export, share, and save EQ curves, enabling everyone to enjoy the fun of tuning.
Key Specifications:
- 10-band high-precision PEQ
- Web-based PEQ location
- Dedicated EQ shortcut key
- Import/export EQ presets
Advanced Bluetooth Technology
The CHORUS 400 is equipped with Qualcomm's new flagship QCC5181 Bluetooth chip, which not only complies with the Bluetooth LE Audio standard and has transmission bandwidth capacity of 2.1Mbps, but also is capable of lossless quality within the aptX Adaptive system. This means the chip is capable of achieving CD-level lossless sound quality over Bluetooth audio, bringing you ever closer to the music with all of its intricate details.
Key Specifications:
- Qualcomm QCC5181 Bluetooth chip
- Bluetooth 5.4
- Support for LDAC, aptX Lossless, aptX Adaptive
- 2.1Mbps transmission bandwidth