Example 2. Two Response Peaks:

Figure 17. Two response peaks

Characterized by two response peaks, approximately equal in amplitude and width. This requires that you make a choice between the two peaks. In situations like this, the higher frequency peak will always be more audible and objectionable. Response peaks below 45Hz, unless extreme, can actually be beneficial toward achieving visceral impact. Perform corrections on the upper frequency peak.

Apply the Width Selector as described above. Align the center-line of the Selector over the center of the higher frequency peak. Now adjust the Selector until you have achieved the “best fit.”The slider now points to the correct width setting. In this example, this is at 52Hz. The best-fit width is 28%. Fill in the Width and Frequency fields provided on the template.

Determine the appropriate level using the technique described earlier. This calculation will indicate a –8dB setting. However, this peak does not reach the 0dB level as the lower peak does. Therefore, a –8dB setting would be excessive. The 52Hz peak stops at –2dB. Subtracting 2 from 8 yields the correct setting, –6dB. Enter –6 in the Level field.

Skip to the “Adjusting the R.A.B.O.S. Equalizer”section on page 14.

Example 3. Peak Adjacent to a Dip:

Figure 18. Dip above or below peak

Response dips can occur at any frequency, sometimes immediately adjacent to the peak you want to correct. Two examples are shown, one immediately above and one immediately below the peak. Deep response dips such as these are caused by destructive wave interference. Destructive interference dips occur only in one spot within the room. It is not uncommon to completely eliminate the effect by moving the RSLM to a different location. Note that this does not eliminate the dips. We have simply moved away from them. Sometimes only a few inches are required. Do not attempt to correct this condition with equalization. If you encounter dips like this, take the following steps:

1.Select a new test position: Cue the test track corresponding to the center frequency of the dip. In the first example in Figure 19, you would play Track 13 (56Hz). Press Play . You will see a reading very close to what you had before. Now, slowly move the RSLM around the area, if possible remaining within about a foot of the original test point. As you move the RSLM, watch the bar graph. You will observe large level fluctuations. Find a position that restores the level to approximately that of the adjacent test points. You may find it helpful to move the RSLM vertically. Dips can be oriented in any axis. The position that restores the level to about that of the adjacent test points is your new test position.

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Infinity TSS-SUB4000 manual Example 2. Two Response Peaks, Example 3. Peak Adjacent to a Dip

TSS-SUB4000 specifications

The Infinity TSS-SUB4000 is a cutting-edge subwoofer that takes home audio systems to a whole new level. Renowned for its deep, powerful bass response, this model seamlessly integrates high-tech features with robust build quality, making it a standout choice for audiophiles and casual listeners alike.

One of the main features of the TSS-SUB4000 is its high-performance 12-inch driver. This driver is expertly engineered to deliver exceptionally rich and full low-frequency sounds, making it ideal for both music and movie playback. Complementing the driver is a powerful built-in amplifier that provides peak power output. This combination ensures that the subwoofer can handle demanding audio tracks without distortion, allowing listeners to fully experience the depth of their favorite songs and soundtracks.

The TSS-SUB4000 also incorporates advanced technologies, including a sophisticated bass reflex design. This design enhances airflow and reduces turbulence, resulting in clearer and tighter bass reproduction. The incorporation of a phase control feature allows users to fine-tune the subwoofer to match their listening environment, ensuring it integrates perfectly with their main speakers.

Another key characteristic of the Infinity TSS-SUB4000 is its versatile connectivity options. It comes equipped with both line-level and speaker-level inputs, providing flexibility for various setups. Whether used in a traditional stereo configuration or as part of a more complex home theater system, the TSS-SUB4000 adapts to any audio configuration with ease.

In terms of build quality, the subwoofer is housed in a robust enclosure designed to minimize resonance and unwanted vibrations. The sleek finish not only makes it visually appealing but also ensures durability, allowing it to withstand the rigors of regular use.

Moreover, the Infinity TSS-SUB4000 features intuitive controls located on the rear panel, enabling users to adjust volume, phase, and crossover frequency to optimize sound output according to their preferences.

In conclusion, the Infinity TSS-SUB4000 subwoofer stands out in its category due to its powerful bass performance, advanced technologies, and user-friendly design. It is a worthy investment for anyone looking to enhance their audio experience, ensuring that every note and sound effect is delivered with clarity and impact. This model represents the perfect blend of innovation and practicality, solidifying its position as a top choice among home audio solutions.