Was ist Hi-Res Audio?

Hi-Res Audio is a term coined by JEITA in 2014 and, in simple terms, stands for more detail in audio transmission with a resolution of at least 24 bits and a sampling rate of at least 96 kHz.

The trademark term of the Japan Electronics and Information Technology Industries Association (JEITA) defines minimum standards for audio in the signal flow with a resolution of more than 16 bits and sampling rates higher than 44.1 kHz.

In practice, this means that audio signals are transmitted, played back or recorded with a resolution of at least 24 bits and a sampling rate of 96 kHz. Higher resolution and higher sampling rates mean that audio signals have a wider bandwidth. This broadens the spectrum, e.g. with greater bit depths. This in turn refines the sound and brings out more details.

Hi-Res Audio microphones, amplifiers and headphones can therefore record, amplify or play back audio signals with at least 96kHz, allowing you to enjoy music with greater detail. Only products that have been tested and approved by the JAS company are authorised to use the Hi-Res Audio designation.

For a multi-faceted music experience, it is important to note that the music file, the playback device (e.g. a smartphone) and also the playback device (e.g. headphones) must support the broader spectrum.

Hi-Res Audio headphone amplifier and equaliser from InLine

InLine offers various Hi-Res Audio headphone amplifiers and equalisers, e.g. with a jack connection, a USB port or a tube amplifier.

The InLine® AmpEQ Mobile with a rechargeable battery, for example, is the perfect companion for travelling. You simply connect the amplifier and equaliser between your smartphone and the headphones and adjust the sound to your liking using the various setting options.

The InLine® AmpUSB, on the other hand, is ideal for optimising the sound on a computer or laptop. It is simply connected to the computer via USB and integrated into the PC sound environment via a 6.3 mm or 3.5 mm stereo headphone output or via a combined 3.5 mm stereo audio line OUT and optical S/PDIF digital output.

With all Hi-Res Audio headphone amplifiers and equalisers from InLine, you can look forward to even more facets and details when listening to music. Get the best out of your favourite headphones!

InLine® AmpEQ mobile, Tri-Tone Hi-Res AUDIO Pre- and Headphone-Amp, 3.5mm stereo

Note:We refer to the website ‘Drivers-Download’ in the operating instructions included in the contents of delivery; this website has no connection with our company and is now being misused for phishing purposes.
We therefore strongly advise against using this website!

Experience your music in a new pleasure! This InLine® AmpEQ Hi-Fi headphone amplifier has a built-in 3-band equalizer and a loudness button for perfect sound adjustment of your favorite music, according to your taste.

Headphone Amplifier with 3-band equalizer
Loudness switch and switch for the equalizer
Gain Switch (-10dB)
2x 3.5mm stereo input Line-IN
1x 3.5mm stereo headphone output (Equalizer + Amplifier)
1x 3.5mm stereo output Line-OUT (Equalizer)
3 controls for treble (3KHz-20KHz), middle (200Hz-4kHz) and bass (20Hz-250Hz)
2 controls for balance (L/R) and volume
Stereo Crosstalk: 90dB
Suitable for headphone impedance 16-600Ohms
Micro-USB jack for power supply and charging (5V / 0.5A), USB power adapter optional
High-quality metal / aluminum construction
Gold-plated contacts of audio jacks
Built-in rechargeable Lithium Polymer battery
Battery capacity: 2200mAh
Battery life: around 6 hours
Charging time: around 2 hours
Content: InLine® AmpEQ Tone control headphone amp and pre-amp x1, Users Manual x1, Micro USB cable x1, InLine® Premium Audio Cable 3.5mm M/M x1, Magnet tape for connecting other modules x1

Item no.: 99204I

InLine® AmpEQ Hi-Res AUDIO headphone amplifier and equalizer, 3.5mm jack USB

Individual tone control: Treble, mid-range and bass can be adjusted separately thanks to the integrated 3-band equalizer with precise rotary controls.
Optimized sound at any volume: Loudness switch boosts low and high frequencies for fuller sound at low volumes.
Flexible use: Two 3.5mm line INs, headphone and line OUT connections make the amplifier versatile for use with PC, cell phone or audio sources.
Plug & Play with USB power: Power supply via micro USB - ideal for mobile listening or space-saving desktop solutions.
Compact and high-quality: Robust metal housing with gold-plated sockets - for durability and stable signal quality.

The InLine AmpEQ is a portable hi-fi headphone amplifier with integrated equalizer for anyone who wants to customize their sound. Treble, mid-range and bass can be specifically adjusted using three rotary controls. In addition, the switchable loudness function ensures a balanced sound even at low volumes.

Two 3.5 mm line inputs enable the connection of various audio sources such as smartphones, PCs or music players. Headphones (equalizer & amplification) as well as other devices can be operated via line OUT (equalizer signal) via separate outputs. This means the AmpEQ can be flexibly adapted to any listening situation - ideal for at home, on the go or in a setup with other modules.

Thanks to the micro USB power supply, the amplifier can be easily connected to power banks, laptops or USB power supplies. Balance and volume controls complete the features and offer full control over the sound. The sturdy metal housing protects the technology, while gold-plated sockets ensure consistently good signal transmission.

Equalizer frequency ranges: Treble: 3KHz-20KHz, Mid: 200Hz-4KHz, Bass: 20Hz-250Hz
Other controls: volume, balance
stereo crosstalk: 90 dB
headphone impedance: 16-600 Ohm
Inputs/Outputs: 2x 3.5mm Line-IN, 1x Headphones, 1x Line-OUT
Power supply: Micro-USB 5V/0.5A
Dimensions: 11.6 x 3.8 x 4.8 cm

Item no.: 99201I

InLine® AmpUSB-EQ, Hi-Res AUDIO HiFi DSD USB Audio DAC

The InLine® AmpUSB-EQ 384KHz/32bit DSD USB Audio DAC is a highly transparent digital audio playback system. It is capable of converting high-resolution PCM audio up to 384 kHz and DSD audio (up to 128xDSD). The USB DAC allows you to bypass the sound card or headphone output of your computer and send digital audio signals via the USB interface. This perfect digital interface between your computer and music system raises the sound quality in your entire music environment to a higher level. In addition to the micro-USB input, the headphone amplifier and equalizer also has a chinch / phono input, an optical SPDIF input and a line-in and aux-in. The various inputs can be selected via the input select button. The available outputs are: 3.5mm and 6.3mm stereo headphone output, line-in, SPDIF / Pre out and bass out. Record function: The integrated analog to digital converter enables the digitization of audio files on the PC or laptop via the USB connection. Old records or music cassettes can be stored as digital audio files with the corresponding playback device. The connection variety makes it possible to use the amplifier and equalizer not only on the computer, it can be used with sound systems, TVs, smartphones or turntables.

Supports DSD 2.8/5.6MHz playback
Supports PCM 384KHz/32bit playback
Supports DSD native or DoP
Asynchronous transmission mode
Compatible with Apple (via camera kit / optional accessories) and Android devices (with OTG adaptercable / optional accessories)
Max. Headphone output power (at 1KHz and singlechannel):
- 6.3mm socket: approx. 210mW at 16 ohms, approx. 190mW at 32 ohms
- 3.5mm socket: approx. 110mW at 16 ohms, approx. 125mW at 32 ohms
Headphone impedances from 16 - 600 Ohm can be used
High Quality DAC Chipset - ES9018Q2C
High quality 12AU7 tube amplifier for crystal clear audio playback
High quality headphone amplifier

Tri-Band Tone Control:

Treble:
- Control range: 3KHz-20KHz
- Trim range: -12dB to +12dB
- Center frequency: 18KHz
Middle:
- Control range: 200Hz-4KHz
- Trim range: -10dB to +10dB
- Center frequency: 1KHz
Bass:
- Control range: 20-250Hz
- Trim range: -14dB to +14dB
- Center frequency: 100Hz

Hardware Loudness EQ
MM/MC turntable selector switch
Analog volume control
Supports ASIO
Power by DC24V via external power supply unit
LED indicators for DSD and PCM playback and input status
Metal case
Integrated de-pop function to suppress pop noise during PC startup and shutdown
Supported operating systems: Windows 10/8.x/7 (32/64-bit) and MAC OS X

Scope of delivery:

1x InLine® AmpUSB-EQ USB DAC
1x USB cable
1x Power adapter 24V / 2A (dimensions hollow plug: outside 5.5, inside 2.1 mm)
1x Drivers and software CD, with JRiver Media Center License Key
1x Operating instructions

Item no.: 99207I

InLine® AmpUSB, Hi-Res AUDIO HiFi DSD headphone tube amplifier, 384kHz/32-bit

High-resolution sound: Supports 384kHz/32bit PCM and DSD128 for detailed, low-loss audio playback at hi-fi level.
Natural tube sound: The integrated 12AU7 tube provides a warm, harmonious sound character with analog signal amplification.
Multiple connection options: 3.5mm and 6.3mm jacks, line-out and optical S/PDIF allow flexible connection to headphones or audio systems.
Asynchronous USB transmission: Avoids jitter and ensures stable signal processing - ideal for enjoying music on a PC or notebook.
High-quality workmanship: Robust aluminum housing, analog volume control and LED display for PCM/DSD make the DAC a premium audio device.

The InLine AmpUSB combines a high-quality USB DAC and tube headphone amplifier in one compact device - perfect for anyone who wants to get more out of their music. Whether on a PC, notebook or with mobile devices (via OTG adapter): The amplifier delivers detailed and natural audio reproduction at hi-fi level. High-resolution formats such as 384kHz/32bit PCM and DSD128 (DoP and native) are supported.

The integrated 12AU7 tube ensures a warm, soft sound character. The asynchronous USB transfer mode keeps the signal stable and free from interference. The built-in Cirrus Logic CS4392 DAC ensures precise conversion and delivers an SNR of approx. 110 dB.

Whether with 3.5 mm or 6.3 mm headphones, line-out or optical S/PDIF output: the AmpUSB adapts flexibly to your audio environment. It supports impedances from 16 to 600 ohms and is therefore also ideally suited for demanding headphones. An analog volume control and LEDs for displaying PCM and DSD signals round off the concept.

The high-quality metal housing ensures a durable and stylish look. Windows, macOS and Android systems are supported. Ideal for anyone who wants to experience music rather than just listen to it.

Playback formats: PCM up to 384kHz/32bit, DSD128
Compatibility: Windows XP to 10, macOS from 10.6, Android (OTG)
Output power: 210 mW / 16 Ohm, 190 mW / 32 Ohm
Headphone impedance: 16-600 Ohm
Ports: 3.5mm & 6.3mm jack, line-out, optical S/PDIF
Case material: aluminum
Dimensions: 11cm x 8.1cm x 8cm

Item no.: 99206I