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SV Subwoofers

This disc allows the user to play 10Hz through 98Hz in one hertz increments allow- ing very good resolution over your measurements. Other good examples for test discs are Avia’s Guide to Home Theater and Digital Video Essentials. When meas- uring the room’s response use a minimum resolution of 5Hz. Figure 3 on the previ- ous page shows a theoretical illustration of a room’s response.

Before you plot your results however, it’s important to note the Radio Shack sound meter is not totally "linear" in its accuracy down low. All similar meters are off by the similar amount depending on the frequency; so while its sensitivity below 20Hz is not what it is at 50Hz, there is a simple way to compensate for this deficiency. It's called a compensation chart.

Simply look to the below frequencies and add the required decibels (dBs) at the fre- quency in question. So if your system seems to be measuring 70dBs with a 20Hz tone, then really it's putting out 77.5dBs. This is a VERY substantial difference, roughly TWICE the acoustical energy, requiring several times the amplifier power to achieve. You can see then how critical the below chart is if you are using your PEQ to even out or “flatten” the room response of your bass.

Add the following to your measurements:

10Hz add 20dBs 12Hz add 16.5dB 16Hz add 11.5dB 20Hz add 7.5dB 25Hz add 5dB 31.5Hz add 3dB 40Hz add 2.5dB 50Hz add 1.5dB 63Hz add 1.5dB 80Hz add 1.5dB 100Hz add 2dB 125Hz add .5dB

SVS PEQ Controls

Explanation of the controls. Now that we understand how to measure the room’s response the next step is to correct the problem areas with the parametric equalizer. Before we start turning the controls we need to understand what the ad- justments are and how they work (the controls of your PB1-Plus will be arranged different than pictured).

“Q”. This control determines how wide the correction will be. Each “hash mark” on the amp’s front plate represents 0.1 octave adjustments. The “HI” mark is equal to 0.1 octave (narrow) and “LO” mark is equal to .9 octave (wide). In Figure 3 the highest peak is located at 40Hz and becomes flat again at 50Hz (the Highest Fre- quency of the peak). To determine the Q adjustment the following formula is needed. More on “Q” in a moment.

Formula 1 (Highest Frequency [X] – Center Point [Y]) Center Point (Y)

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SV Sound SVS PB1-Plus manual SVS PEQ Controls
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SVS PB1-Plus specifications

The SV Sound SVS PB1-Plus is a powerful subwoofer that exemplifies high-performance audio engineering, making it a popular choice among audiophiles and home theater enthusiasts. The PB1-Plus combines cutting-edge technologies with a robust design to deliver deep, immersive bass that enhances the overall listening experience.

One of the main features of the PB1-Plus is its impressive 12-inch driver, which is designed to handle significant power and produce thunderous low frequencies. This driver operates in a ported enclosure, allowing it to achieve greater efficiency and output. The unique port design minimizes turbulence and ensures clean, distortion-free bass reproduction, even at high volumes.

In terms of power, the SVS PB1-Plus is equipped with a 300-watt RMS amplifier, which can reach peaks of up to 700 watts. This ample power supply allows the subwoofer to deliver strong and impactful bass that can shake the room. The amplifier is also paired with advanced DSP technology, ensuring precise control over the frequency response and integration with other speakers in a home audio setup.

The SVS PB1-Plus features a frequency response range from 19 Hz to 240 Hz, making it capable of reproducing the deep rumble of cinematic explosions as well as subtle musical notes with great clarity. This wide frequency range allows users to experience every nuance in their favorite movies and music tracks.

Ease of use is another hallmark of the PB1-Plus. It comes with adjustable settings for phase, volume, and low-pass filter, which allows for seamless integration with various audio systems. The subwoofer also features both line-level and speaker-level inputs, providing flexibility in connectivity options.

The durable construction and elegant design of the SVS PB1-Plus make it a stylish addition to any home theater or audio setup. With its cabinet made of high-quality MDF, the subwoofer minimizes cabinet resonance, promoting cleaner sound reproduction. The attractive vinyl finish adds a refined touch, ensuring it complements any decor.

In summary, the SV Sound SVS PB1-Plus subwoofer stands out in the market for its combination of powerful performance, advanced technologies, and aesthetic appeal. While delivering an exceptional bass experience, it also allows for customized integration into a variety of audio setups, making it a top choice for those looking to elevate their sound experience.
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