Qls QA390 User Manual

1
1.Support format
Local play
(SD card)
Audio Bit depth, Sample Rate Container, Encoding, Compression
WAV
64Bit / 192KHz
24Bit / 352.8KHz
Fixed-point, floating-point
AIFF 24Bit / 352.8KHz
FLAC 24Bit / 352.8KHz Level 0~8
ALAC 24Bit / 48KHz M4A container
WavPack 24Bit / 48KHz Fast / Normal / High / High Plus
APE
C1000: 24Bit / 192KHz
C2000: 24Bit / 192KHz
C3000: 24Bit / 192KHz
C4000: 24Bit / 96KHz
Fast / Normal / High / Extra High
TTA 24Bit / 48KHz
DIFF DSD128
Not support DST encoding DSF DSD128
SACD-ISO DSD64
MP3
16Bit / 48KHz，96-320kbps
CBR / VBR / ABR encoding
AAC 16Bit / 44.1KHz
M4A container,
AAC LC / SBR encoding
DTS 16Bit / 44.1KHz WAV container, DTS-5.1/DTS-ES
CUE ANSI / Unicode / Unicode Big-endian / UTF-8 encoding
USB-PC
PCM 32Bit / 384KHz，DSD256
USB-Phone
PCM 32Bit / 384KHz，DSD128
Blue-tooth PCM 24Bit / 192KHz SBC / AAC / HWA encoding
Coaxial/optical input
PCM 24Bit / 192KHz，DSD64（DoP）
Coaxial/optical output
PCM 24Bit / 192KHz，DSD64（DoP）
Note: Some audio formats has higher requirements at the continuous stability of SD card
reading speed, the SD cards which not reach standard maybe stuck or crashed, please use the
SD cards which recommended by us, at the same time, too many fragments will caused the
above problems, advise use Panasonic formatting software SDFormatter cover formatted it,
then use DiskGenius software formatted it as FAT32 again.

Qls QA390 Specifications

General

DAC Chip	AK4490
FM Radio	No
Voice Recording	No
Screen Type	TFT
Supported Formats	APE, FLAC, ALAC, WMA, WAV, MP3
Outputs	3.5mm Headphone, Line Out
Storage	MicroSD card (up to 256GB)

Summary

Support Format

Power Supply and Charging

Firmware Upgrade

Function Interface

USB-PC Interface

Connect the device to a computer via USB-PC for audio output and driver installation.

USB-PHONE Interface

Connect the device to mobile phones or tablets using USB-PHONE interface.

Bluetooth Connectivity

Pair the device with mobile phones via Bluetooth for wireless audio streaming.

RCA and XLR Output Ports

Utilize RCA and XLR analog outputs for audio signals, with volume control options.

Type-C Charging Port

Details on the Type-C port for QC2.0 standard fast charging input.

DC Power Input Port

Details on the DC port for external power supply input (5V-13V).

Front Panel Overview

Rear Panel Overview

Remote Control Functions

Interface Layout Diagram

Operating Instructions

Music Scanning and Local Play

Instructions for scanning music files and performing local playback from SD card.

Favorite Operations and Song Deletion

How to add songs to favorites and delete tracks from the device.

PC and Phone Connectivity Operation

Connecting to PC via USB-PC and to phones via USB-PHONE for operation.

Bluetooth and Digital Input Operation

Operating Bluetooth connections and Coaxial/Optical digital inputs.

Setting Parameters

Playback Range and Memory Settings

Configure playback range, memory playback mode, and digital/analog output.

Tuning, Volume, Gain, and Sound Settings

Adjust tuning mode, preamp volume, gain, AMP voltage, and sound modes.

System Protection and Power Management

Manage volume protection, auto off-screen, auto power off, and factory reset.

Product Maintain Guarantee Card