Questyle NHB15: True Lossless Sound Is Here

Unveiled in December 2023, the Questyle NHB15 True Lossless Earphone is the latest addition to Questyle’s NHB line, delivering studio-quality audio on the go. Capable of processing high-resolution audio up to 192kHz with 0% distortion, the NHB15 is a true powerhouse for audiophiles seeking uncompromised sound quality. Thanks to its advanced SiP Chip MA2430, this earphone combines DAC and amplification in a single chip, delivering unparalleled audio performance while maintaining ultra-low distortion.

If you're looking for true lossless sound via a lighting connection - check out the Questyle NHB12

Key Features at a Glance

• Studio-quality 192kHz audio with 0% distortion for true lossless sound
• SiP Chip MA2430 featuring independent DAC and Current Mode Amplifier
• Compatible with iPhone 15 series, iPads (iOS), Android, HarmonyOS, Windows, and macOS
• LED indicators for audio data processing
• Detachable cable design with both USB-C and 3.5mm connector cables included
• Ultra-low distortion at 0.0002%, operating with minimal power consumption
• Immaculate sound quality with 16-24bit PCM audio data up to 192kHz
• Ergonomically optimized design for maximum comfort based on extensive research
• Includes 5 multi-sized silicone ear tips and a compact leather storage case

Plug and Play Across All USB-C Devices

The NHB15 features a USB Type-C connector fully compatible with the latest iPhone 15 series, iPads running iOS, Android, Samsung Galaxy, HarmonyOS smartphones, as well as computers using Windows and macOS. With plug-and-play functionality, no drivers or settings adjustments are required, making it easy to experience true lossless audio wherever you are.

LED INDICATOR

When NHB15 is running and processing audio data with a sample rate of 48k or below, an indicator will light up.

When NHB15 processes high-resolution lossless data which are higher than 48k, the two indicators will light up.

SiP Chip for Independent DAC and Amp: MA2430

Questyle Technology, in collaboration with strategic partner USI (Universal Scientific Industrial), embarked on a two-year journey starting in 2021 to develop a series of chips, including the audio SiP chip MA2430, all in the pursuit of an uncompromising auditory experience. The MA2430 incorporates the Current Mode amplifier and the entire chain of lossless audio signal processing. Operating at a minimum voltage of 2V, the system requires only 3mA of operating current, which is half the power consumption of a typical TWS IEM. However, the MA2430 boasts DAC capabilities for master tape-level music up to 192k and the performance of driving headphones with ultra-low distortion at 0.0002%, challenging the physical testing limits of current top-tier audio analyzers.

• DAC Capability for Master Tape-Level Music: 192k
  
• Minimum Operating Voltage: 2v
  
• Ultra-Low Distortion: 0.0002%
  
• Operating Current: 3mA

Immaculate Lossless Acoustic System

The graph depicts the acoustic test curves of Questyle NHB15 True Lossless Earphone (blue) and Xelento, the flagship headset of the well-known Brand (red).

Ergonomic and Optimized Design

The balance between comfort and sound quality is crucial yet often overlooked when it comes to in-ear headphone wear. During the early stages of NHB15 development, our designers collected data from extensive ear model databases, based on that, they made over 10 samples and created more than 50 models. Before the final design was confirmed, they had done lots of wear- comfort experiment with over 100 individuals covering different genders, ages, nationalities, and usage habits. This meticulous process took them 2 years to achieve the ultimate design.
The included ear tips are interchangeable, providing a precisely tailored and comfortable wearing experience.

Detachable Cable Design

The NHB15 features a detachable cable design. What is more, we provide a classic 3.5mm cable included in the box. The interchangeable cable can be paired with various devices.

Storage Pouch

The NHB15 comes with a specially designed headphone storage pouch, compact in size similar to a car key, making it convenient to carry in your pocket for on-the-go use.

In The Box

• NHB15 Earphone
  
• Quick Start Guide
• USB-C Connector Cable
• 3.5mm Connector Cable
  
• 5 Multi-Sized Silicone Eartips (XS/S/M/L/XL)
  
• Leather Storage Case

Specifications

• Headphone Interface: USB Type-C
• Audio Data: PCM 44.1-192kHz/16-24bit
• Operating Current: 10mA
• Maximum Operating Current: 20mA
• Impedance: 38ohm
• Frequency Response: 20-20000Hz
• Product Net Weight: 26g
• Cable Length: 1.2m

FAQ

1. What is True Lossless Sound?
True Lossless Sound refers to the NHB15's ability to deliver audio without any data loss or compression, resulting in sound quality that is identical to the original recording. It supports studio-quality 192kHz audio with 0% distortion, offering audiophiles a pure and accurate listening experience.

2. What devices are compatible with the Questyle NHB15?
The NHB15 is compatible with a wide range of devices, including iPhone 15 series, iPads (iOS), Android devices, Samsung Galaxy, HarmonyOS smartphones, and computers running Windows or macOS. It features a USB Type-C connector for easy plug-and-play functionality across multiple platforms.

3. Do I need to install any drivers to use the NHB15?
No, the NHB15 is designed for convenience and ease of use. It’s completely plug-and-play with no need for drivers or settings adjustments.

4. What is the significance of the SiP Chip MA2430?
The SiP Chip MA2430 is an advanced chip developed in collaboration with USI (Universal Scientific Industrial) that integrates both a DAC and a Current Mode Amplifier. It ensures ultra-low distortion (0.0002%) and superior audio performance, driving master tape-level music up to 192kHz.

5. What’s the function of the LED indicators?
The LED indicators signal the audio quality being processed:

• One indicator lights up for audio sample rates of 48kHz or below.
• Both indicators light up when processing high-resolution audio greater than 48kHz.

6. Does the NHB15 support both USB-C and 3.5mm audio outputs?
Yes, the NHB15 includes detachable cables for both USB-C and 3.5mm outputs, making it versatile and compatible with a variety of devices.

7. How does the detachable cable design benefit me?
The detachable cable design allows you to switch between USB-C and 3.5mm cables, making it easy to use the NHB15 with different devices. It also ensures longer durability since cables can be replaced if needed.

8. What comes in the box with the NHB15?
The NHB15 package includes:

• NHB15 Earphones
• USB-C Connector Cable
• 3.5mm Connector Cable
• 5 multi-sized silicone ear tips (XS/S/M/L/XL)
• Leather storage case
• Quick Start Guide

9. How much power does the NHB15 consume?
The NHB15 operates with a minimal power consumption of 3mA, significantly lower than typical in-ear monitors (IEMs), making it highly efficient.

10. Is the Questyle NHB15 comfortable to wear for long periods?
Yes, the NHB15 was ergonomically designed after extensive research and testing on various ear models, ensuring optimal comfort for long listening sessions. It also comes with 5 multi-sized silicone ear tips to ensure a perfect fit.

11. How portable is the NHB15?
The NHB15 weighs only 26 grams and comes with a compact leather storage pouch, making it highly portable and convenient for on-the-go use.

About Questyle

Founded in Shenzhen in 2012, Questyle designs and manufactures high-tech lossless consumer audio products. Questyle's mission is to solve technical issues, overcome environmental constraints, and use a simple and free-spirited approach to provide users with a wonderful immersive audio experience.