Features
High-Resolution Audio Support: Supports PCM up to 32Bit/384KHz and DSD256 for high-quality audio playback.
Advanced Connectivity: Includes USB, Bluetooth 5.0, coaxial, and optical inputs for versatile connectivity options.
Powerful Output: Delivers up to 1300mW per channel on balanced output and 1000mW per channel on single-ended output.
Durable Build: Constructed from CNC-machined aluminum for durability and aesthetic appeal.
Comprehensive Controls: Features independent volume control, preamp function, and multiple output levels for customizable audio performance.
Battery Life: Offers up to 8.5 hours of playback time with support for fast charging via Type-C or DC port.
Technical Information
Internal Storage: Supports one external SD or TF card (FAT32) up to 512GB.
DAC Chip: ES9038PRO x 1.
Volume Control: PGA2311UA analog program-controlled.
Clock Jitter: 0.038 picoseconds (38 femtoseconds).
Charging Interface: Type-C port or DC port, compatible with QC standards.
Battery Life: About 8.5 hours.
Charging Time: 4-5 hours with fast charging, 8-9 hours with standard charging.
Dimensions: 20cm x 18cm x 4.45cm.
Weight: 3.1kg (including package).
Output Power (Single-ended): 1000mW @ 32Ω, 360mW @ 300Ω, 180mW @ 600Ω.
Output Power (Balanced): 1300mW @ 32Ω, 1200mW @ 300Ω, 720mW @ 600Ω.
Package Includes
QA390 mod *1
SanDisk 64GB TF card (with card set) *1
USB 3.0 card reader *1
USB A to port B cable *1
Type-C charging cable *1
External power supply (charging) *1
Infrared remote controller *1
Headphone Output Power
Single-Ended:
32Ω: 1000mW/ch high voltage, high gain
300Ω: 360mW/ch high voltage, super high gain
600Ω: 180mW/ch high voltage, super high gain
Balanced:
32Ω: 1300mW/ch high voltage, high gain
300Ω: 1200mW/ch high voltage, super high gain
600Ω: 720mW/ch high voltage, super high gain
Differences Between QA390mod and QA390LE
Same Circuit and Materials:
Dual AS338 global clocks.
ES9038PRO DAC chip.
LDAC high-definition Bluetooth input comparable to local playback.
Same optimized power and analog circuit as QA390LE.
Production Process: QA390mod uses a mass-production process rather than the limited production process of QA390LE.
Appearance: QA390mod does not have the limited edition numbered nameplate.
Sound Quality: QA390mod sounds very close to QA390LE, with only subtle differences in smoothness. Overall similarity exceeds 95% (most audiophiles may not notice the difference).
How to Distinguish QA390mod from Regular QA390
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