QLS QA361

Support Format

Format      Number of sampling, sample rate, bit rate         Coding, compression level

WAV      16/24/32/64Bit, 44.1-192KHz 24Bit, 352.8KHz      Fixed point, floating point

AIFF      16/24/32Bit, 44.1-192KHz 24Bit, 352.8KHz

FLAC     16/24Bit, 44.1- 352.8KHz                        Level 0-8

APE        C1000: 16/24Bit, 44.1-192KHz                      Fast

C2000: 16/24Bit, 44.1-192KHz                 Normal

C3000: 16/24Bit, 44.1-192KHz                       High

C4000: 16/24Bit, 44.1-96KHz                        Extra

ALAC     16/24Bit, 44.1/48KHz                          M4A container

TTA       16/24Bit, 44.1/48KHz

WV       16/24Bit, 44.1/48KHz                          Fast/Normal/High/High Plus

DIFF      1Bit, 2.8224/5.6448MHz                       DSD64-128

DSF       1Bit, 2.8224/5.6448MHz                       DSD64-128

SACD-ISO  1Bit, 2.8224MHz                            DSD64

MP3       16Bit, 22.05/32/44,1/48KHz 96kbps-320kbps      CBR/VBR/ABR

AAC       16Bit, 44,1KHz                            M4A container, AAC LC/CSBR

DTS       16Bit, 44,1KHz                            WAC container, DTS-5.1/DTS-ES

CUE       ANSI/Unicode/Unicode Big Endian/UTF-8 Coding

Specification

Storage media: use 1 external TF card, support FAT32 and exFAT file system, currently supports a maximum capacity of 256G.

Sound mode: slow down, steep drop, short delay slow down, short delay steep drop, super slow down, AII TO DSD.

High and low gain: low gain, high gain, use analog signal hardware control, ensuring low gain and high gain with the same good sound quality .

Headphone amp thrust mode: standard mode, high current, high voltage, double high (high current + high voltage)

Support channel: two channels (stereo).

Digital output: 3.5mm coaxial output port × l

Coaxial output: Level 0.5Vp-p, matched impedance 75Ω, support up to 24Bit / 192KHz and DOP for DSD64.

Reference clock jitter: 0.088 picoseconds (88 femtoseconds).

Headphone amp output: 3.5mm single port × l, 3.5mm balance port × l.

Analog output: 3.5mm Line Out port × l.

Analog audio parameters:

Frequency response: 0-20KHz

Signal to noise ratio: 112dB

Dynamic range: 115dB

Resolution: 106dB

Distortion: 0.0008%

Output level:

LINE OUT: 2Vrms

PO non-balance: 5.26Vrms (high voltage mode no-load)

PO balance: 10.4Vrms (high voltage mode no-load)

Single-ended headphone port rated output power:

8Ω: 720mW@big current mode, 280mW@ standard mode

32Ω: 400mW@double high mode, 170mW@ standard mode

300Ω: 100mW@ high voltage mode, 35mW@ standard mode

Balanced Output Power (BTL): Theoretically 4 times the single-ended power, actually measured:

300Ω: 320mW@ high voltage mode, 130mW@ standard mode

Output impedance: LINE OUT 93Ω, PO unbalanced 0.18Ω, PO balanced 0.38Ω.

Headphone matching impedance: 8Ω - 60Ω

Decoding chip: AK4495SEQ (sound quality special edition), LPF: OPA2107

Built-in battery: ultra low internal resistance custom lithium polymer battery 3.8V --- 3800Mah

Input voltage: 4.8V – 5.4V, current 2A and above (TYPE-C interface) (can be used directly by mobile phone charger or charging treasure charger).

Life time: conservative 10 hours (standard mode single-ended output, actually measured to play WAV 16Bit/44.1K, screen setting 10 seconds off, multiple prototypes are more than 11 hours).

Balanced output reduces the endurance by about 10%, and the high current or high voltage mode reduces the endurance by about 20%, and the double high mode reduces the endurance by about 40%.

Charging time: 5-6 hours

Host size: 115mm × 64.5mm × 16mm

Host net weight: 180g