XUELIN Clear

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- Stock: In Stock
- Brand: XUELIN
- Model: Clear
Available Options
Xuelin Clear Dual 9038Q DAC Decoding Lossless HiFi Audiophile Music Player with 3.5mm & 4.4mm Output (64/128G)
Description
12864
OLED x 4
FFT
play
RK
NANO D
TPS7A47
OPA1612
x 3LPF
2.5V
thrust
DAC
ES9038 x 2
TF
CARD
AMP
OP1622 x 2
Glass
panel
Double
clock
3.85V
battery
Clear's 9 advantages
1.
Pure tone system, the main control power consumption is extremely low, the code
is more pure. Have lower jitter and latency than Android system.
2.
5 x Opa1612 + 2 Opal622 Ti flagship OPamps, providing approximately one in
100,000 ultra-low THD.
3.
14 x TQC 107 polymer capacitors provide independent power for each OP, ESR as
low as 55 mΩ, only 10% of ordinary tantalum capacitors, providing pure energy.
4.
The two ES9038Q decode the left and right channels independently, providing
maximum separation.
5.
CS8421 Independent clock reorganization, the Jitter is reduced by one order to
50ps.
6.
Output reaches 7V VPP single-ended, 5 times that of conventional products, easy
to drive high-resistance large headphones.
7.
Tps7a30 and Tps7a47 ultra-low noise (16μV) instrument-grade LDO power the
analog.
8.
27mHz + 50mHz audio dedicated TCXO crystal oscillator, providing a stable and
high-precision clock for the digital end.
9.
Aluminum CNC body + tempered glass 4 screen ID design, an irresistible texture.
What are the weaknesses
of HiFi?
It’s
on the analog side. The DAC chip has been upgraded from the early WM8740 to
AK4499 after ten iterations, and the analog end has hardly developed in
decades. Most manufacturers choose to upgrade the DAC with more selling points,
and CLEAR has been repeatedly studied at the simulation end and built with fine
materials to achieve an amazing HIFI-level hearing feast.
16μV
ultra-low noise power supply
In
order to achieve an accurate balance, the feedback/load resistance adopts the
Japanese KOA thousandth precision patch resistor, which is not only highly
accurate, temperature drift but also only 10% of the ordinary carbon film. The
cleanliness of the analog power supply directly affects performance. To solve
this problem, Xuelin used TI's instrument level power supply chips TPS7A30 and
TPS7A49 in CLEAR, which has ultra-high power supply rejection ratio (RSRR)
performance and output noise as low as 16μV/RMS. Not only does it help meet the
broad input voltage and minimum noise requirements, but it also leaves the most
room for transients.
6063A magnesium alloy
body
The
body is made of 6063A magnesium aluminum alloy, CNC integrated processing,
surface frosted anodizing process. Classic and modern elements highly
integrated exquisite appearance ID, more in line with the preferences of
professional players. Thanks to Xuelin's 20 years of audio development experience,
numerous tuning and testing of CLEAR, so that CLEAR still achieved 126dB at
7.1V output SNR and low distortion within 0.008%, laying a solid foundation for
good sound quality.
POSCAP polymer
capacitance matrix
Most
of the power capacitors used in portable players is designed to be tens of
micrometers, which limits the dynamics of the sound and the sense of scale of
the sound, while also reducing cleanliness. CLEAR uses 14 pcs 100UF POSCAP
capacitors to power the analog circuit. The POSCAP capacitor ESR is
approximately 90% lower than ordinary tantalum capacitors, providing better
frequency and transient response.
Media support formats
APE:
fast condition, 8kHz-192kHz, 16Bit-24Bit, support CUE
APE:
normal condition, 8kHz-192kHz, 16Bit-24Bit, support CUE
WAV:
8kHz-192kHz, 16Bit-24Bit-32Bit, support CUE
WMA:
8kHz-96kHz, 16Bit-24Bit
FLAC:
8kHz-192kHz, 16Bit-24Bit, support CUE
MP2:
8kHz-48kHz, 16Bit
MP3:
8kHz-48kHz, 16Bit
DSD:
2.8MHz, 1Bit
DFF:
2.8MHz, 1Bit
ISO
DSD: 2.8MHz, 1Bit
ISO
DTS: not support
Aiff:
8kHz-192kHz, 16Bit-24Bit-32Bit
M4A:
8kHz-192kHz, 16Bit-24Bit, support CUE
Main control part
Screen:
0.96OLED x 4(white light)
Operation:
ALPS encoder + 5 buttons
Mail
control chip: RKNANOD-G
MHz:
400MHz
Memory:
external TF card up to 2TB
Built-in
memory: 64/128G options
Digital part
Decoding:
ES9038Q x 2
Decoding
clock: 50MHz TCXO
Upturn:
CS8421
Upturn
clock: 27MHz TCXO
FFT:
STM32F103C8T6
FFT
decoding: CS4344
Analog part
I/V:
OPA1612 x 2
LPF:
OPA1612 x 1
BAL:
OPA1612 x 2
Headphone
amp: OPA1622 x 2
Power part
Boost:
FP6291
Negative
pressure: LT1611
+5V
LDO: TPS7A47
-5V
LDO: TPS7A30
Power
filter: macromolecule 107 x 14
High
frequency decoupling: NPO104 x 14
Interfaces
Headphone
3.5mm output
Headphone
4.4mm balanced output
Type-C
USB data and charging
TF
card extend
Test conditions in full
power, off USB, 90% volume
Output(THD˂0.1)
Single-end
maximum output level: …2.6V(effective value)
Single-end
maximum output level: …7.29V(peak-to-peak value)
Balanced
maximum output level: …5.2V(effective value)
Balanced
maximum output level: …14.45V(peak-to-peak value)
Test parameters
Channel
imbalance: ≤0.8dB(1kHz)
Sound
channel separation degree: ≥91.6dB(1kHz)
Frequency
response: 20Hz-20kHz(+0.05/-0.41dB)
THD+N:
≤0.0085%(1kHz)
Specification
Battery:
3100mAh, 4.35V high voltage lithium battery
Battery
life: 8 hours(turning off the screen, 80% volume, cycle WAV)
Size:
110 x 60 x 16mm
Weight:
157g
Package
CLEAR
USB
cable
5V
2A charger
Free Shipping
All listed items will be shipped through Registered Airmail with tracking number if there is no extra shipping option or shipping description at the product page.
Economy shipping: Will be shipped without tracking number.(because of the covid-19 affects, economy airmail parcel is easy to lose, pls place the order by choosing registered airmail, or you purchase one more product , we can send together via registered airmail)
Registered Airmail : Will be shipped via such as Hong Kong post , Singapore Post, you can leave us a message if you have any requirements about the shipping method .
We can ship the parcel to Canada and Europe countries via tax-inclusive shipping method, pls choose ''Flat shipping rate' service at checkout.
Express service: Will be shipped via DHL/EMS/UPS/FedEx,Canada and Europe countries will be shipped via tax-inclusive shipping method for free.