Tuning

Preamplifier output terminals are connected to the RCA phono jacks of the woofer box via shielded audio lines.

When using the loudspeaker output terminals (high level) as an audio drive source, run the input leads to the nearest loudspeakers (front or back), ensuring connection to both left and right audio channels. Ensure the polarity of the con- nections, + or -, is observed. Bridged output radios (BTL) can also be connected without an additional adapter. Make sure the speakers you are connecting to are driven by the radio as a full-range signal, not just the midrange or above.

Before using your subwoofer, we recommend that you set the controls to the following positions.

1.Gain—at minimum

2.Phase—at 0°

3.Crossover—at 80 Hz

4.Turn on the system and select a music track from a CD or cassette that contains powerful bass.

5.Turn up your stereo’s volume to the desired lis- tening level.

6.Now slowly turn up the Gain control on the sub- woofer until you clearly hear an increase in the bass level.

7.Next, using the Crossover control, select a crossover frequency that produces a well-bal- anced bass sound.

You may have to alternate between finely tuning the Gain control and the Crossover control to optimize the sound.

Check your tuning of your powered subwoofer with the Bass control on your head unit or radio fully turned up and, if nec- essary with the loudness switched on. Over amplification of the Powered Subwoofer caused by setting the sensitivity too high can lead to distorted reproduction and can irreparably damage the subwoofer.

The Phase control should be adjusted once the other adjust- ments are made. Adjust this control for the point where the bass sounds the most natural from your normal listening position. In most cases the “0” or “180” settings will be used.

SIR-PS1 specifications

The Directed Electronics SIR-PS1 is a cutting-edge security and remote start system designed to provide vehicle owners with an advanced level of protection and convenience. Known for its robust features and innovative technologies, the SIR-PS1 stands out in the competitive automotive security landscape.

One of the main features of the SIR-PS1 is its two-way communication system, which allows users to receive real-time alerts and status updates from their vehicle. This feature enhances the security aspect, as users can be notified immediately if their vehicle is being tampered with. The remote start capability is another significant advantage, enabling users to start their vehicles from a distance, which is particularly useful in extreme weather conditions.

The SIR-PS1 employs a range of technologies to ensure reliable performance. One such technology is the use of cutting-edge encryption protocols, which safeguard against unauthorized access and hacking attempts. This ensures that only the vehicle owner can control the system, providing peace of mind. Additionally, the system is equipped with an adjustable sensitivity feature for its shock sensors, allowing users to customize the level of detection based on their environment, which helps to minimize false alarms.

Another notable characteristic of the SIR-PS1 is its compatibility with various vehicles, making it a versatile choice for a wide range of automotive applications. The installation process is straightforward and can often be completed by professional installers, which adds to the system's overall appeal. Furthermore, the SIR-PS1 includes a built-in auxiliary channel, which allows for integration with other devices such as GPS tracking systems and additional security features, further enhancing its functionality.

The SIR-PS1 also comes with a sleek, user-friendly remote that features a liquid crystal display (LCD) for easy navigation and control. The intuitive design ensures that users can efficiently operate their vehicle's security and remote start functions, enhancing the overall user experience.

In summary, the Directed Electronics SIR-PS1 is an advanced security system that offers an impressive array of features, including two-way communication, remote start capability, and customizable sensitivity settings. Its modern technologies and compatibility with various vehicles make it an excellent choice for those seeking to enhance the security and convenience of their automotive experience. With the SIR-PS1, vehicle owners can enjoy the peace of mind that comes from knowing their vehicle is well-protected and easily accessible at all times.