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Precision HiFi Engineering

Shenzhen QLS Electronic Technology Co., Ltd. — Crafting high-fidelity audio experiences with cutting-edge DACs, amplifiers, power supplies, and all-in-one players.

Explore Products
QH1 Preamp QA662 Player QU02 USB Bridge MUB1 DAC Amp

About QLS HiFi

Shenzhen QLS Electronic Technology Co., Ltd. is a dedicated manufacturer in the high-fidelity audio sector, committed to delivering premium audio equipment that combines advanced engineering with elegant design.

With years of expertise, QLS HiFi focuses on innovation in digital-to-analog conversion, low-noise power delivery, and portable audio solutions. Our mission is to provide audiophiles and professionals with reliable, high-performance gear that elevates the listening experience.

Expertly engineered for audiophiles
Precision components & low-noise design
Global shipping via DHL, FedEx, UPS, EMS
Warranty support for faulty units
QLS HiFi Lab

Our Products

Innovative HiFi Equipment for the Discerning Listener

QH1 Preamp

QH1

Fully Balanced Preamp & Portable Desktop Headphone Amp

  • • Fully balanced circuit design
  • • High-output headphone amplifier
  • • Suitable for desktop and portable use
  • • Low distortion, wide dynamic range
QA662 Player

QA662

HiFi Player & Digital Turntable

  • • High-resolution audio playback
  • • Digital turntable emulation
  • • Supports multiple audio formats
  • • Precision clocking for jitter reduction
MUB1 DAC

MUB1

Portable HiFi USB and Bluetooth DAC & Headphone Amp

  • • USB and Bluetooth connectivity
  • • High-quality DAC for lossless audio
  • • Compact and portable design
  • • Ideal for on-the-go audiophiles
QU02 USB Bridge

QU02

USB Bridge

  • • High-speed USB audio interface
  • • Low-jitter data transmission
  • • Compatible with PC and mobile devices
  • • Optimized for high-res audio streaming
MC01 DAC

MC01 / MC01se

Portable USB DAC / AMP

  • • Compact USB-powered DAC and amp
  • • High signal-to-noise ratio
  • • Plug-and-play compatibility
  • • Ideal for laptops and smartphones
QA390LE Player

QA390LE (QA390V2)

Movable Desktop HiFi Player

  • • All-in-one desktop audio solution
  • • High-fidelity playback engine
  • • Portable yet powerful
  • • Supports multiple digital inputs
QP02 Power Supply

QP02

Low-Noise DC Linear Power Supply

  • • Ultra-low noise output
  • • Linear regulation for clean power
  • • Designed for sensitive audio gear
  • • Reduces system noise and hum
PS1 Power Supply

PS1

HiFi Ultra-Low-Noise DC Power Supply Processor

  • • Advanced noise filtering
  • • Regulated DC output
  • • Enhances audio clarity and detail
  • • Compatible with various QLS devices
QA390 Player

QA390

Movable Desktop Player (Truly All-in-One)

  • • Integrated DAC, amp, and player
  • • High-resolution audio support
  • • Compact and versatile design
  • • Perfect for desktop and travel

Why Choose QLS HiFi?

Precision Engineering

Every product is designed with meticulous attention to circuit layout, component selection, and signal integrity to ensure the purest audio reproduction.

Low-Noise Design

Our power supplies and amplifiers utilize ultra-low-noise components and linear regulation to eliminate hum, hiss, and interference.

Global Support

We ship worldwide via DHL, FedEx, UPS, and EMS with 5–10 business days delivery. Faulty units are replaced or refunded promptly.

15+
Years of Innovation
8
Core Product Lines
50+
Countries Served
100%
Customer Warranty Support

Frequently Asked Questions

What payment methods do you accept?

We primarily accept PayPal. It's quick and secure — you can sign up at paypal.com if you don’t already have an account.

How long does shipping take?

Orders are shipped via DHL, EMS, FedEx, or UPS and typically arrive within 5–10 business days, depending on your location.

Do you offer a warranty?

Yes. We are happy to replace or refund any faulty goods and aim to resolve all issues quickly and efficiently.

Can I contact customer support before purchasing?

Absolutely. If you have any questions about our products or services, please contact us before placing an order.

Get in Touch

For inquiries about products, orders, or technical support, visit the official QLS HiFi website to contact the team directly.

Visit Official Website

Tel: +86-0755-28187975

Fax: +86-0755-28187976

Email: cxqmcu@cxqmcu.com

Room A1502, NiuLanQian Building, MinZhi Road, LongHua Town, Shenzhen, Guangdong, China 518131

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