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Boss Audio PD4000 Phantom 4000W Monoblock, Class D Amplifier
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The lowest impedance accepted by this amplifier is 1 ohm. Amplifiers that are 1 ohm stable produce the most power possible from the amp. An amplifier capable of delivering power at a 1 ohm load is usually reserved for serious subwoofers that can handle the power. Please note this particular amp needs a healthy electrical system including a low gauge wire capable of delivering the necessary current.
This feature is built-in to the amplifier and allows you to adjust the amount of bass going to your subwoofers or speakers. Depending on the amplifier the adjustments range is from 0 to 12dB or 0 to 18dB.
Class D is a high speed switching amplifier technology that is more efficient, generates less heat and draws less power than traditional Class A/B amps. We use Class D in our monoblock amplifiers to give you massive amounts of power in a relatively small footprint for clean, powerful, bass.
Built-in crossovers enable you to tailor the audio to your system’s needs. A High-Pass filter allows only the frequencies above the set frequency to pass through to your full range or component speakers and a Low-Pass filter allows only the frequencies below the set frequency to pass through to your subwoofers so your speakers and subwoofer[s] can perform more efficiently and effectively.
The phase control feature allows you to adjust the speakers phase to ensure all audio signals are playing together rather than against each other. When bass notes are noticeably absent, a quick and easy adjustment to the phase control could provide the perfect remedy.
Pre-Amp RCA line outputs are essential if you are looking to expand your audio system. With one pair of RCA outputs you can one add one amp or signal processor, two pair allows you to add a second amp or a 4 channel amp and three pair allows you have an amplifier connected to the front and rear speakers plus the subwoofer. Check out the specs to see how many Preamp outputs this unit has.
If the amplifier gets too hot, the thermal protection circuit turns the amp off and allows the amp to cool down before turning it back on. If a speaker fails causing an electrical short, the protection circuit will automatically cut the output and remain in that state until the short is resolved. These safety features give you peace of mind knowing the amplifier is constantly monitoring conditions to protect itself.
Strapping capability means that two amplifiers can be linked together to create double the power at an impedance of 2 ohms. A benefit of strapping is less electrical current is required than if you ran [2] individual amps at 1 ohm and you only need 1 pair of preamp outputs and [1] RCA cable to connect.
The wired remote subwoofer level control, mountable for easy access, has long been a popular feature on many of our amplifiers. The remote allows you to control the output level of the subwoofer(s) as needed for optimum sound according to your personal taste and listening environment.
Switchable Input Sensitivity gives you the freedom to connect the amp to any standard source unit and have peace of mind it will be within range to properly match the output of the source unit allowing you to use the volume controls on your source unit the way it was designed.
