As mentioned the D 4SUB goes very low in order to reproduce the extreme bass contents of movie soundtracks with full authority.

However, under certain circumstances this can create a problem, which is why some decoders feature a Boundary Gain Compensation filter.

This filter compensates for the room influence at low frequencies, as any room amplifies the lowest frequencies. The magnitude of the room’s amplification depends on the actual room and where you are positioned – normally it increases the closer you get to a wall.

This can result in too high bass level from approx. 60 Hz and increasing downwards.

In the range between 20-30Hz it peaks up to 5-10dB in an average room.

At first impression this could sound really impressive, but especially when listening to music the sound can be “boomy” and rather annoying. And certainly terms like coherent and harmonious become impossible to use . . .

Therefore, the D 4SUB has a quite unique feature:

Boundary Gain Compensation is built into the D 4SUB on a separate input, thus always granting you optimum benefit from the D 4SUB.

The level control is placed on top of the D 4SUB, elegantly integrated in the design it grants easy access when you want to adjust the level depending on software type and format (music, movie, DD/DTS etc.).

7

Page 7
Image 7
JAMO D 4 manual

D 4 specifications

The JAMO D 4 series represents a blend of innovative audio technology and sophisticated design, aimed at providing an immersive sound experience for music lovers and home theater enthusiasts alike. With its elegant aesthetic and robust performance, the D 4 series has garnered attention for its commitment to high-quality audio reproduction.

One of the standout features of the JAMO D 4 is its advanced driver technology. Each speaker in the series features a proprietary bass driver designed for low distortion and deep bass response. The driver’s design allows for a more controlled and responsive sound, making it ideal for bass-heavy music genres as well as detailed vocal performances. Coupled with a high-frequency driver that delivers crisp and clear highs, the D 4 speakers produce a well-balanced audio experience.

The cabinet design of the JAMO D 4 series is not only visually appealing but also essential for optimal sound quality. The enclosure is crafted from high-quality materials that minimize resonances, allowing the speakers to produce purer sound. Its sleek and modern finish is available in a variety of colors and textures, ensuring a seamless integration into any home décor.

Another significant technology integrated into the JAMO D 4 speakers is the waveguide technology, which enhances sound dispersion and helps to create a wider listening area. This technology ensures that everyone in the room can enjoy a consistent sound experience, making it perfect for gatherings or home theater settings.

In terms of compatibility, the D 4 series is designed to work well with various audio setups, including receiver amplifiers and streaming devices. Its flexible connectivity options make integration into existing systems effortless.

Additionally, the JAMO D 4 speakers embody energy efficiency, equipped with features that help reduce power consumption without compromising performance. This commitment to sustainability is echoed in various aspects of their design and manufacturing processes.

In summary, the JAMO D 4 series stands out for its combination of advanced audio technologies, stylish design, and versatility. With superior bass performance, high-frequency clarity, and aesthetic appeal, the D 4 speakers are a compelling choice for anyone looking to elevate their audio experience. Whether for music, movies, or gaming, the JAMO D 4 delivers exceptional sound quality that will undoubtedly enhance your listening enjoyment.