Finding optimal Phase Settings

FINDING OPTIMAL SETTINGS

•Listen carefully to the bass-line played by the instrument. As it goes up and down in the bass range, the overall bass volume should remain the same, be it with very deep or higher bass notes. Particularly with very small main speakers, it may be that you can hear a "hole" in the bass response: You can hear the deepest bass notes and everything from lower midrange easily, but overall the bass leaves a thin impression. On the other hand, it may be that using the 60Hz setting the system already sounds good. In both cases, select the next setting, "80" Hz.

•Playing the same track at the same volume level, again listen to the overall bass volume level. If the apparent hole in bass response is still present or if the system sounds good now, move on to the next setting, 100Hz. Should the bass volume suddenly become louder or bloated at certain tones compared to the 60Hz setting earlier, revert to this setting; in this case setting the cross-over frequency is done.

•Again play the track to listen to the overall bass volume level. If the bass sounds correct now, leave the setting at 100Hz. Should the bass volume suddenly become louder or bloated at certain tones compared to the 80Hz setting earlier, revert to this setting.

Phase

With the phase settings you can adjust the timing relationship between the subwoofers and main speakers. If either subwoofer or main speaker are slightly delayed in response in relation to the other, it can result in decreased bass Output in the frequency response area where they overlap each other..

The Phase relationship between subwoofer and satellite speakers is very dependent on relative distance, construction and working principles of the main speakers. Fig 16 shows a case whereby phase of the subwoofer and main speakers are incorrect in the critical overlap area, thus significantly reducing acoustic Output in the listening room in that area.

Fig. 16

Incorrect phase relation of subwoofer to main speakers in critical overlap area: Reduced acoustical Output in overlap area, even if levels are set correct.

•Playing the same bass-rich track which also covers the overlap area, repeatedly press the 0°, and its opposite phase, the 180° button in succession. Without changing volume level, do the same with the 90° and its opposite phase, the 270° button (No. 5 in fig. 6). Note which set of phase settings (0°-180° or 90°-270°) provides the biggest difference in bass response.

•Using the set of phase settings found in the step above (either 0°-180° or 90°-270°) press each of the two buttons in alteration. The position in which you experience the most bass is the correct setting, even if it appears that the bass is too much (this can be adjusted for later).

BM10S specifications

The Dynaudio BM10S is a standout subwoofer known for its exceptional sound quality and precision, making it an ideal choice for professionals in music production, film scoring, and broadcasting. As a part of the Dynaudio BM series, the BM10S has been designed to provide a seamless integration with the company's studio monitors, delivering an accurate low-frequency response that enhances overall audio performance.

One of the main features of the BM10S is its powerful 10-inch driver. This driver is engineered to produce deep bass sounds with clarity and control. The subwoofer can handle a frequency range starting from 27 Hz, allowing it to reproduce low-end frequencies effectively while maintaining a linear response. This capability is crucial in professional settings where every detail of the sound is essential, ensuring that low frequencies do not mask other vital elements in the mix.

Equipped with a built-in multi-amplification system, the BM10S features a 200-watt RMS power output. This ample power ensures that the subwoofer is capable of delivering both burst and sustained low frequencies without distortion. The intelligent design allows it to adapt to various monitoring environments, making it versatile enough for different studio setups.

The BM10S utilizes advanced DSP (digital signal processing) technology to enhance its performance further. This includes customizable EQ settings, allowing users to tailor the subwoofer’s response to fit their specific room acoustics. The ability to adjust crossover frequencies helps in blending the subwoofer seamlessly with Dynaudio monitors, offering an extended low-end presence without compromising the mid and high frequencies.

Another notable characteristic of the Dynaudio BM10S is its robust build quality. The cabinet is constructed from high-grade MDF, which minimizes resonance and vibration, ensuring that sound output remains clear and uncolored. The sleek design not only contributes to its aesthetic appeal but also ensures a practical fit in various studio environments.

In summary, the Dynaudio BM10S is a professional-grade subwoofer that boasts advanced technologies, solid performance specifications, and an elegant design. With its powerful driver, built-in amplification, and digital signal processing capabilities, it stands out as an essential tool for audio professionals seeking to achieve precision in their sound production. Whether for music mixing or multimedia applications, the BM10S meets the demands of the most discerning users.