PMC is a British company that specializes in designing and manufacturing high quality loudspeakers and professional monitoring systems. Their products are used in various settings, from professional recording studios to home audio systems. PMC's technology is particularly noted for its Advanced Transmission Line (ATL) design, which enhances the bass output and audio clarity. Their products cater to audiophiles and professionals seeking accurate and immersive sound reproduction.

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ACTIVE twenty5.21i


**Oslo, Norway**: In a significant move that's set to redefine the high-fidelity audio landscape, Hegel Music Systems has announced the launch of its latest creation - the Hegel H600 integrated amplifier. Celebrating its 25th anniversary, Hegel is marking the occasion with what can only be described as an audio masterpiece.

#### Powerhouse Performance

The H600, dubbed as the company's reference integrated amplifier, is a tour de force in the world of high-end audio. Packing a formidable 303 watts per channel into 8 ohms and a remarkable damping factor of 4000, it's designed to drive any speaker with unparalleled confidence and ease. The dual mono design of the H600 mirrors the performance of two mono amps in a single box, a feat of engineering that delivers an unmatched soundstage with a broad dynamic range and deep, controlled bass.

#### Cutting-Edge Technology

A highlight of the H600 is its bit-perfect digital-to-analog converter (DAC). This state-of-the-art component ensures pure audio fidelity, free from any resampling or upsampling. With a large, dedicated power supply and robust shielding against interference, the DAC provides exceptional resolution and smoothness. The amplifier's chassis, crafted from aluminum, adds to its audio performance, offering enhanced stability and reduced vibrations.

#### Streamlined Streaming and Connectivity

Embracing the era of digital music, the H600 comes equipped with an array of streaming options, including UPnP, Airplay 2, Tidal Connect, and Roon Ready compatibility. This broad suite of features ensures that the amplifier is not just a powerhouse of performance but also a hub of convenience and accessibility. Additionally, the amplifier boasts a wide range of analog and digital connections, including True Balanced XLR inputs, USB 32/384 input, and optical inputs, making it a versatile centerpiece for any audio setup.

#### Award-Winning Design

The Hegel H600 isn't just about remarkable technical capabilities; it's also a winner in aesthetics and ease of use. Recently, it received the prestigious EISA award for Best High-End Streaming Amplifier, a testament to its outstanding quality and innovation. The EISA committee lauded the H600 for its upgraded digital stage, bespoke error-cancelling technology, and redesigned preamp stage, all contributing to its organic, compelling performance.

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Discover the Hidden Power of Hegel H600's Dual Mono Design

Hegel's latest innovation, the H600 integrated amplifier, offers a groundbreaking audio experience with exceptional power and clarity.

Recently, we got a unique product to test. Currently, there are only two models of keyboards with a built-in DAC and headphone amplifier in the world, and one of them is the Fiio KB3. We will talk about it today.

This keyboard has several unique features, and we want to figure out who it is for, how it sounds, and whether it is worth the money. Given its uniqueness, let's start with an analysis of the features and sound.

## Feature Overview

It is important to define the methodology for comparison and identification of key points for Fiio KB3, given its niche. Let's start with the fact that two Cirrus Logic CS43131 DACs and two SGM8262 operational amplifiers are installed inside the device.

The Cirrus Logic CS43131 DACs in the Fiio KB3 are known for their ability to provide clear and detailed sound, which is especially important when listening to high-resolution music. These DACs, typically used in high-end portable audio devices, are used here to improve sound quality directly at your workplace. And the SGM8262 operational amplifiers help to minimize distortion and noise, providing a richer and more emotional sound, making each listened composition more alive and realistic.

## Sound Analysis

The starting point in our comparison will be a quick test of the MacBook Pro, which already has a decent built-in DAC. Headphones worth about 2,000 euros were chosen as headphones to avoid sound limitations and at the same time to check the efficiency of the amplifier.

We created [a playlist on Qobuz](https://open.qobuz.com/playlist/19379861) that includes tracks that we believe are suitable for testing this keyboard. The playlist features various genres, but we consciously did not focus on jazz and classical music, as we assume that KB3 is aimed at a slightly different audience.

During a quick test of the MacBook Pro DAC with the tracks "Blinding Lights" and "Crew Love", it was noticed that, despite the good bass in "Blinding Lights", the sound seems a bit closed. "Crew Love" demonstrates the purity of the sound, but there is a lack of spaciousness and resolution. In general, the sound through the MacBook Pro is clear, but not as detailed and rich as we would like.

Now we move on to the most exciting stage: we connect the headphones to the 3.5mm jack of the Fiio KB3. Conveniently, no additional drivers are required. We listened to the same and other tracks:

- **The Dark Knight, Hans Zimmer**: There is a noticeable improvement in resolution, although the bass seems a bit restrained.
- **Hotel California, Eagles**: The sound becomes more natural and full, with good transmission of nuances.
- **Blinding Lights, The Weeknd**: The bass has improved significantly. Even at maximum volume, the sound is not tiring, maintaining its dynamics and development.
- **Crew Love, Drake**: Good clarity and nuance, great separation of voices.
- **Enter Sandman, Metallica**: Excellent drums that create a sense of closeness.
- **Moth to a Flame, Swedish House Mafia**: While listening, we unknowingly turned up the volume to maximum - the sound is captivating, without any complaints.

The use of two Cirrus Logic CS43131 DACs in the Fiio KB3 keyboard significantly improves the soundstage, making it more spacious and detailed. This is especially noticeable when listening to complex musical compositions, where each instrument and voice sounds clear and separate. Thanks to this, the use of the Fiio KB3 keyboard turns ordinary listening to music into a deeper and more immersive experience.

The amplifier in the Fiio KB3 really proved to be powerful and effective, doing an excellent job of maintaining sound quality even at maximum volume. This is an important aspect for any audio device, especially when it comes to listening to music through high-end headphones.

## Functionality

Sound control on the Fiio KB3 is significantly more convenient and enjoyable than the standard volume control on the keyboard. This is ensured by the built-in volume knob, which allows you to accurately and easily adjust the volume level. Additionally, the keyboard is equipped with two USB ports, which expands its functionality, allowing you to connect additional devices, such as a mouse or flash drive, directly to the keyboard, which is convenient and practical, especially with a limited number of free ports on the computer.

In addition, the Fiio KB3 is equipped with mechanical keys with Gateron G Pro 3.0 yellow switches, providing pleasant tactile sensations when typing. RGB backlighting adds aesthetic appeal and provides customization options, which will be valuable for users who want to give their workspace a personal touch. And the compact 75% design makes the keyboard ideal for saving space on your desktop.

## Appearance and Packaging

The outer packaging of the Fiio KB3 looks presentable and modern, decorated with the company's slogan "Born for Music". The keyboard comes with a long enough USB cable for connection, as well as a simple instruction manual. It is worth noting the absence of a specialized cable for connecting to Mac devices, which will require the use of an adapter. However, overall, the first impression of the keyboard was very positive, and there was an immediate desire to connect it and evaluate its sound.

## Verdict

The Fiio KB3 is an excellent purchase at an affordable price. For 110+ euros, you get not only a gaming keyboard, but also a built-in DAC and headphone amplifier. This is a great offer for those looking for a solution to improve sound quality without adding external devices. The Fiio KB3 is ideal for optimizing your workspace and reducing the number of cables, while it is not only attractive for audiophiles, but also enriches the gaming experience for gamers, improving the sound of dialogues and special effects.

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Fiio KB3 Review: The Keyboard That Makes Your Music and Games Come Alive

FiiO is a company that specializes in the design and production of audio products.

FiiO


For audio aficionados, the term 'soundstage' is akin to a holy grail. The notion of a three-dimensional sonic space where each instrument and vocal takes its place is an alluring pursuit. But achieving that perfect soundstage is more than just a matter of buying the most expensive gear. It's about the intelligent application of techniques, settings, and positioning.

## The Role of the Subwoofer

A subwoofer's importance in crafting a soundstage is often underestimated. When calibrated carefully, it adds layers to the music, generating a sense of depth and dimensionality. A well-calibrated subwoofer neither overpowers the music nor stays in the background but blends in seamlessly. Modern technologies like Digital Signal Processing (DSP) can offer meticulous calibration options. Time alignment is another overlooked but crucial factor. Synchronizing your subwoofer's output so that it reaches your ears in perfect harmony with your primary speakers can make a significant difference.

## Triangle Equilibrium and Toe-In

The "Triangle Rule" posits that the listener and the two primary speakers should form an equilateral triangle. However, the 'toe-in' factor can add a layer of nuance to this equation. Toe-in refers to the degree to which the speakers are angled toward the listener. More toe-in often results in a more focused, narrow soundstage, while less toe-in can produce a wider, more expansive sonic landscape.

## Role of Room Acoustics

While much of the conversation about soundstage revolves around equipment, room acoustics can be just as critical. Moving your speakers away from the walls can dramatically change the soundstage's depth. Symmetry is another vital aspect; the distance between the speakers and the walls should be uniform. This is where tools like Room EQ Wizard (REW) come into play, allowing you to make data-driven decisions about speaker positioning.

## The Impact of Pre-Amps and Cabling

One often-overlooked aspect of soundstage development is the role of pre-amplifiers and cables. These elements can subtly—or sometimes not-so-subtly—alter the audio output. Changing your pre-amplifier can significantly affect the depth and width of your soundstage, so it's worth exploring this option if you're looking for improvements. Even speaker cables and interconnects can make a difference, so consider experimenting with different types to see what suits your setup best.

## The Importance of Trial and Error

When it comes to fine-tuning your soundstage, experimentation is your best friend. Feel free to move your speakers around, tweak the settings on your subwoofer, and even change your seating position. Using familiar music tracks to gauge these adjustments is a tried and true method for gauging their effectiveness.

## Measurements and Tools

While your ears are indeed the final judge, having tools and software to measure your setup can add a layer of objectivity to the fine-tuning process. REW or similar room measurement software can offer insights into room acoustics and speaker performance, allowing you to adjust based on empirical data.

## Conclusion

Fine-tuning a soundstage is a blend of art and science. While there is no one-size-fits-all formula, the guidelines and tips in this article should provide you with a roadmap to enhance your audio experience. Remember, every change you make should aim to maximize your immersion and enjoyment of the music. So start experimenting and make that ideal soundstage a reality!

the essence of a soundstage dedicated purely to acoustic performances, featuring a selection of musical instruments

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The Art of Fine-Tuning Your Soundstage

Discover the science and art behind creating the perfect soundstage for your audio setup. Explore techniques, role of equipment, and expert insights to fine-tune your sound experience.

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