FINDING THE OPTIMAL SETTINGS

Multiple subwoofers.

By using carefully positioned multiple subwoofers it is pos- sible to even out the different room-modes and thus create a more coherent overall bass response in the room. It is worth experimenting with different locations around the room for the additional subwoofers, even using the rear of the room. As adding subwoofers will not increase the effect of room-modes, even adding a subwoofer without much care or thought to positioning is likely to help even out room-modes.

Always position subwoofers at least 1 mtr/3 ft away from a television as the magnetic field emanating from the subwoofer may otherwise distort the

picture. If you see discolorations on the television screen, try moving the subwoofer and other speakers close by away from the television.

Finding the correct settings

Before deciding on a final setting, you will probably want to experiment with both location and adjustment of the subwoofer. Here, the subwoofers presets will prove an ideal tool. When trying to decide on a particular location, simply store the settings that are best for the location and swap back and forth, using the appropriate preset every time. Refer also to section "Storing and recalling a Preset" in Chapter "Adjusting and using the subwoofer".

•When experimenting to find the optimal settings, use a couple of music tracks with repetitive bass across a large spectrum. The tracks should be sufficiently different from each other and each should cover a wide bass-range. Musical instruments, such as a double-bass, bass guitar, church organ, etc. covering a wide spectrum in the bass region and above, are very suitable as these depend on accurately balanced subwoofers and main speakers.

•Although in general it is best to make adjustments in the sequence outlined below, note that changing one setting may influence another. For example, finding the right setting for "Phase" may result in having to decrease "level", even if this was set correct before. It is recommended that you double-check the previous settings before moving on to the next one. Obtaining the best integration of the subwoofers generally involves a considerable amount of repeated fine-tuning.

•Once done, use the presets to store the settings. It is advisable to reserve one preset as the "system default" settings so you can always revert to this setting when you have made temporary changes to any of the settings.

Level

With the "+" and "-" Level buttons (No. 2 in fig. 6) you can adjust the relative volume level of the subwoofer to the main speakers of the system:

•Play the same track a couple of times, adjusting the level so that the instrument sounds homogenous across its range.

•If you find that at certain specific bass tones the response is either too loud (bloated sound) or soft (thin sound), it may be that you have to experiment further with the location of the subwoofer and/or the cross-over settings. Refer to the chapter "positioning the subwoofer" and section "Cross-over setting" in this chapter.

When using multiple subwoofers, ensure that all settings such as level, cross-over frequency, phase and LF extension are identical. Use the "Master"

and "Slave" mode options to ensure that all subwoofers operate on the same settings (refer to chapter "Installation and Connections", section "Master and Slave mode").

Cross-over frequency

With the Cross-over frequency setting you can select up to what frequency the subwoofer will work. Fig. 12 shows the effect of each setting. Note that curves are for explanation purposes only.

Fig. 12

Selecting the ideal cross-over frequency depends in most part on the main speakers. Ideally, the signal to these speakers has passed a low-frequency filter so that these can take over seamlessly from the subwoofer at the correct cross-over frequency. If the cross-over frequency for the main speakers has been set too high (or looking at it differently, the cross-over point for the subwoofer is set too low), there will be a significant gap in the combined

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Dynaudio BM10S manual Finding the Optimal Settings, Multiple subwoofers, Finding the correct settings, Level
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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.
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