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SV Subwoofers

The LEVEL control is the amount of attenuation on the signal located at the center frequency. MIN is equal to 0dB and MAX is equal to -12dB “cut”. Each hash mark reduces the Center Point in question by 1.5dB.

The “FREQ” control (short for frequency) is the adjustment for the center point of the cut and should target the highest peak frequency in the room’s response. Each hash mark for this control moves the center frequency for the desired cut 5Hz, within a range of 20-80Hz.

Adjustments of the parametric equalizer. The first step to adjusting a PEQ is determining the “Center Point” of the cut. Determining the Center Point allows us to establish a target, or baseline, for further adjustments. In this example (again, look- ing to the graph in Figure 3), the peak frequency is roughly 40Hz.

At this stage we’ll estimate the beginning (lowest frequency) and the end (highest frequency) of the peak. In Figure 3 the beginning would be located somewhere near 25Hz and the end, or Highest Frequency, would be near 50Hz. This would be a 25Hz bandwidth, with a Center Point located at 37.5Hz (the midpoint between 25 and 50hz). Notice that the center point of 37.5Hz is not located precisely at the peak frequency in the response curve, which was estimated at 40Hz. Why? If we used 40Hz as our center frequency and 50Hz as our high point cutoff we would only at- tenuate the curve down to 30Hz. This will leave a small bump in response near 25Hz because the correction would only be located between 30Hz to 50Hz.

Now that we determined the Center Point we can adjust the “FREQ” control knob to 37.5Hz, or between the fourth and fifth hash marks, clockwise from the left.

The next step will properly adjust the “Q” setting. We again need to use Formula 1 and calculate the Q setting from Figure 3 using Highest Frequency and Center Point figures just determined above.

50Hz – 37.5Hz = 0.33 37.5Hz

.33 Q … or just past the third hash mark, clockwise from the left of this control.

Now that we have successfully adjusted the Q and Frequency controls, we need to make the final Level adjustment. In Figure 3 the adjustment should be somewhere near –10dB to –11dB, or on the 8th hash mark from the left (1.5dB cut per hash mark), completing the adjustments for the parametric equalizer.

Measure room response for accuracy. After all the adjustments are made we recommend you measure the room again to make sure the adjustments are correct. If the new response curve is not acceptable then fine-tune things some. For example, if the response curve still shows a small peak you should adjust the Level control again to compensate. Make sure your overall SPL calibration is set as de- scribed earlier in this manual, and enjoy your optimized subwoofer!

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SV Sound SVS PB2-Ultra manual 50Hz 37.5Hz = 0.33 37.5Hz
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SVS PB2-Ultra specifications

The SV Sound SVS PB2-Ultra subwoofer is a powerhouse in the world of home audio, renowned for its exceptional performance and advanced engineering. Designed to deliver deep, impactful bass, it caters to audiophiles and home theater enthusiasts alike, establishing itself as a reference point in the realm of subwoofers.

At the heart of the PB2-Ultra is its formidable 12-inch driver, which utilizes a massive motor structure and a long-throw voice coil. This combination allows for impressive excursion capabilities, producing bass frequencies with remarkable clarity and authority. The driver is housed within a robust, ported enclosure that enhances its performance by maximizing the efficiency of airflow, resulting in deeper bass response.

One of the standout features of the SVS PB2-Ultra is its advanced dual driver design. With two active 12-inch drivers working in concert, the subwoofer is able to create an expansive soundstage and rich, immersive sound. The dual-driver configuration also helps to minimize distortion, enabling the subwoofer to reproduce intense low frequencies without losing detail.

Powering this impressive setup is a high-performance built-in amplifier that boasts a staggering output of 1200 watts RMS and 4000 watts peak. This substantial power reserve allows the PB2-Ultra to easily handle dynamic peaks, delivering a thunderous yet clean bass response, whether it's in the middle of a movie's action scene or during a music playback. The amplifier includes advanced software features for added flexibility, allowing users to fine-tune the subwoofer's performance to suit their listening environment.

Moreover, the PB2-Ultra is equipped with sophisticated tuning options. The subwoofer features adjustable phase control, variable low-pass filtering, and volume control, giving users the ability to achieve seamless integration with their main speakers. Additionally, the innovative SVS app allows for easy remote access to these settings, making it simple to adapt the subwoofer's performance on the fly.

Durability is another key characteristic of the PB2-Ultra. Constructed with high-quality materials and finishes, it not only looks elegant but is built to last. The stylish design allows it to fit seamlessly into various room decors, making it as visually appealing as it is functionally exceptional.

In summary, the SV Sound SVS PB2-Ultra is a high-quality subwoofer that combines advanced technology, powerful performance, and user-friendly features. Whether for a cinematic experience or music enjoyment, it stands at the forefront of subwoofer innovation, ensuring that listeners experience their audio in its fullest form.
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