Lyngdorf is a Danish audio brand that specializes in high-end audio products.

Lyngdorf

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The BW-2 subwoofer is designed to not only handle the lower frequencies with ease but also expand its utility beyond traditional subwoofers by reaching up to 800 Hz in "bypass" mode. This unique capacity allows it to reproduce music and soundtracks with unparalleled precision, lending credence to its ability to handle more than just the typical sub-bass content found in action movies. Its focus on high bandwidth ensures the reproduction of full dynamics in audio playback, distinguishing it from other subwoofers that generally top out at 120 Hz.

The design philosophy of the BW-2 is simple yet effective, embodying a 'form follows function' approach. Its minimalistic design does not waste resources on aesthetics that do not enhance sound quality, which allows it to excel in performance without unnecessary embellishments.

Integrating the BW-2 into any setting is straightforward thanks to its flexible design. It can be placed either upright or sideways, complementing any modern decor with its high-gloss black or matte white finish options. This makes it an excellent addition to both stereo and home cinema systems, blending seamlessly with contemporary interior designs.

At the heart of the BW-2 is a refined Class-D amplifier, which is a product of over 15 years of experience in designing top-tier audiophile Class-D amplifiers. This internal amplifier outputs 400 watts, providing substantial power to drive the subwoofer and ensure precise control over the audio output, even at the highest levels.

The BW-2 is versatile, offering more than typical subwoofer functionalities. It features two input modes: "Line in" for use with standard amplifiers and processors, covering a frequency range from 25 to 200 Hz, and an option to bypass internal filters when connected to a Lyngdorf Audio amplifier. This expands its frequency range up to 800 Hz, enabling the BW-2 to serve as a boundary woofer that significantly enhances the audio system's performance.

BW-2


## Introduction to Room Modes: Understanding the Basics

Room modes are essential in understanding the acoustic characteristics of enclosed spaces. They are specific frequencies where sound waves resonate within a room, creating either amplifications or nulls in the sound field. These resonances are greatly influenced by the room's physical dimensions and shape, affecting sound quality and balance. For anyone looking to achieve optimal acoustics in spaces like studios or home theaters, comprehending room modes is vital. This knowledge forms the basis for effective acoustic treatment and the creation of a balanced audio environment.

## Calculating Room Modes: The Fundamental Formulas

Calculating room modes traditionally starts with considering the room's dimensions. This process involves analyzing the length, width, and height of the space to identify potential frequency issues, particularly at low frequencies where room modes are most prominent. While basic calculations can offer a starting point, they often fall short in more complex or irregularly shaped rooms. In such cases, more sophisticated techniques are required to accurately predict the acoustic behavior, especially when dealing with non-rectangular rooms that do not conform to simple formulas.

## Room Dimension Analysis: How Size Affects Acoustics

The size and shape of a room play a significant role in its acoustic properties. Larger rooms, for example, generally exhibit lower frequency modes, which can be particularly challenging to manage and often require specialized acoustic treatment. Smaller rooms, on the other hand, might contend with higher frequency modes, leading to a completely different set of acoustic issues. The complexity increases further with non-rectangular rooms, as their unique shapes lead to a more complex distribution of modes. Understanding the interplay between a room's dimensions and its acoustic behavior is crucial in addressing sound quality issues and achieving a well-balanced sound environment.

## Practical Steps for Identifying Room Modes: A Step-by-Step Guide

To identify room modes, follow these steps:

1.  **Measure Room Dimensions**: Accurately measure the length, width, and height of the room.
2.  **Use Acoustic Analysis Tools**: Utilize software like Room EQ Wizard (REW) to analyze the room's acoustic response.
3.  **Conduct a Sine Wave Test**: Play sine waves at different frequencies and note where resonances occur.
4.  **Observe Sound Behavior**: Listen for areas in the room where certain frequencies are amplified or diminished.
5.  **Consult Online Calculators**: For rectangular rooms, use online calculators to estimate room modes.

## Addressing Room Modes: Strategies for Acoustic Treatment

To mitigate room modes:

1.  **Install Bass Traps**: Place bass traps in room corners to absorb low-frequency energy.
2.  **Use Broadband Absorbers**: Deploy these across the room to tackle a range of frequencies.
3.  **Consider Diffusers**: Use diffusers to break up sound reflections and distribute sound evenly.
4.  **Fine-Tune with Equalization**: While not a substitute for physical treatment, EQ can help balance out the room's frequency response.
5.  **Seek Professional Advice**: For complex room shapes, consulting an acoustician can provide tailored solutions.

## Summary and Key Takeaways: Mastering Room Mode Identification

Understanding room modes is key to achieving balanced acoustics in any space. By accurately measuring room dimensions and employing acoustic analysis tools, one can identify problematic frequencies. Addressing these issues with appropriate acoustic treatments like bass traps, broadband absorbers, and diffusers can significantly improve sound quality. While equalization can offer some assistance, it is no replacement for physical room treatment. For non-standard room shapes, professional guidance is often necessary to ensure optimal acoustic results.

room acoustics, featuring stylized line art depicting sound waves, a geometric outline

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Mastering Room Acoustics: Identifying and Treating Room Modes

Discover how to identify and treat room modes for optimal sound quality. This guide offers practical steps and strategies for effective acoustic treatment in any space.

Let's discuss this new thing that recently appeared - the FiiO CP13 cassette player. It's really something unusual, if you think about it. In a world where everything has become digital and streaming dominates, FiiO made an unexpected move by bringing back cassette players.

Remember the Walkman? That little gadget from the past? The CP13 is a kind of salute to this old Sony classic. It has a vintage look with a silvery-blue case and a design straight from the late 70s. But not only the appearance is important - FiiO added modern elements, such as a USB-C port for charging and a headphone jack. True, there is no Bluetooth in it. Apparently, they really wanted to keep the retro style.

But here's what's interesting - people are really talking about this device. Some admire the nostalgia, contemplating the possibility of using their old cassette collections again. Others are skeptical about it. They wonder why go back to cassettes in an era when you can play millions of songs on your phone. And let's be honest, cassettes weren't known for their high sound quality.

There are also questions about what's inside this player. There are concerns that it may use the same cheap mechanisms as many modern cassette players, which are not considered to be the best. I think we just have to wait and see how it performs.

So yes, it's definitely a "didn't expect that" moment. The return of cassette players in the digital age is like choosing between a horse-drawn carriage and a Tesla. But, you know, everyone has their own tastes. Some people love that nostalgia, the feeling of inserting a cassette, pressing the play button, and simply enjoying music in the old-fashioned way. Let's see if this will be the start of a new/old trend or if it's just a passing interest in retro.


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FiiO CP13 Launches, Reviving the Classic Cassette Era

Reviving the classic cassette player, FiiO's CP13 offers a unique mix of old-school charm and modern functionality.


At this year's Munich Audio Show, Feliks Audio is captivating the audio community with its innovative tube amplification technology. Lukasz, a representative from Feliks Audio, shared insights into their latest offerings, which include the Envy 25th Anniversary headphone amplifier and a prototype of their first electrostatic amplifier.

**Envy 25th Anniversary Amplifier**

The Envy 25th Anniversary edition marks a significant milestone for Feliks Audio, celebrating 25 years of excellence in audio engineering. This limited-edition amplifier, with only 25 units available worldwide, has been designed to push the boundaries of what was previously thought possible in tube headphone amplifiers. Key upgrades include:

-   Custom-made amorphous core output transformers.
-   A specially designed power transformer.
-   Elrog 300B Feliks-branded power tubes.
-   Additional enhancements aimed at improving synergy and performance. The amplifier also features a stunning black piano finish, enhancing its visual appeal as much as its auditory prowess.

**Mystery Electrostatic Amplifier Prototype**

Feliks Audio also teased a "mystery" reveal—an advanced prototype of their first electrostatic amplifier, which has been in development for over three years. This new amplifier uses the 300B power tube, known for its exceptional quality, and is compatible with both old and new electrostatic headphones. Despite the prototype lacking a final chassis, Feliks Audio promises that the finished product will align with the high aesthetic standards of their current lineup.

**Sound Signature and Customer Feedback**

The new electrostatic amplifier aims to deliver robust bass reproduction—a notable challenge in electrostatic setups—while maintaining the high-resolution and detailed highs that Feliks Audio products are known for. The overall sound signature is described as neutral, consistent with the brand’s philosophy, providing an enveloping, light yet powerful audio experience. This setup is particularly optimized for headphones like the Stax SR-X9000, promising an immersive listening experience.

**Looking Ahead**

Feliks Audio is optimistic about making the electrostatic amplifier available by the end of the year, contingent on the progress of the final design stages. Additionally, the brand plans to focus on enhancing production schedules and reducing wait times for various models, particularly the Envy variants, which continue to be highly popular among audiophiles. Feliks Audio remains committed to innovation and eagerly anticipates community feedback to guide future developments.

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 Feliks Audio Showcases Groundbreaking Amplifiers at Munich Audio Show

Feliks Audio is a company that specializes in high-end audio equipment, particularly tube amplifiers and headphone amplifiers.

 Feliks Audio

Join Feliks Audio in celebrating 25 years of audio excellence with the launch of their Envy 25th Anniversary amplifier and a new electrostatic amplifier prototype

BW-2

by Lyngdorf

Interesting articles

Mastering Room Acoustics: Identifying and Treating Room Modes

FiiO CP13 Launches, Reviving the Classic Cassette Era

Feliks Audio Showcases Groundbreaking Amplifiers at Munich Audio Show