4SUB | JAMO D 4 instruction

D 4CEN

D 4CEN is a 2 way bass reflex system featuring two 4½” woofers and a 1” DCD tweeter.

The design of D 4CEN is kept as compact as possible in order to make it easier to place the speaker close to the TV set. So, the height of just 16-cm/6.3 inch is just enough to house the two powerful 4½” drivers.

Actually, you would probably expect that in order to obtain optimum timbre matching between centre and front speaker you need to use the same size of driver.

What happens when placing too much cone area in a relatively compact cabinet is an overshoot before the woofers starts to roll off. This overshoot is often heard on centre channel speakers as if the sound was

recorded with the microphone placed directly on the chest of the actor – not exactly contributing to voice intelligibility!

The cone area of the two 4½” woofers equals less than that of one 6½” woofer, but due to the fact that the two woofers are placed closely together and that they are working in the same frequency range they load each other at the lower midrange frequencies. This means that in this range the cone area equals a 6½” woofer. So, actually by reducing the cone area we achieved exactly what we wanted; acoustically identical drivers and thus a seamless transition between the front speakers.

The D 4CEN is of course magnetically shielded, for placing in the vicinity of a normal CRT type TV.

D 4SUB

The D 4SUB is equipped with two very powerful 8” woofers in a closed cabinet.

The advantage of using two 8“ woofers instead of one large is higher power handling capability - as the heat is disposed of in two voice coils/magnet systems - and a more compact design – making it a lot easier to find a suitable placing of the subwoofer.

The cone area of the two 8” woofers equals the size of an 11” woofer.

The class D amplifier delivers solid 400 watt (continuous output) – more than enough to secure

sufficient headroom – even for a subwoofer reaching down to 22Hz (- 6 dB).

The stand by power consumption is <1 watt – so unless you are not using the subwoofer for a longer period of time, there is no need to disconnect it from the mains. Just let the automatic on/off circuitry do the daily job for you.

Thanks to the heavy MDF board cabinet, the powerful amplifier, and the specially developed woofers, the D 4SUB delivers a deep, precise and detailed reproduction of the low register - perfectly matching the sound from the D 4 front speakers.

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.