OPERATION

ADJUSTING CROSSOVER FREQUENCY (P325.1)

Placing the switch in the HP position sets the amplifier to the High Pass mode, enabling frequencies above the cut-off point to pass, adjustable between 40-400Hz.

Placing the switch in the AP position sets the amplifier to the All Pass mode, preventing any crossover adjustment, allowing all frequencies to pass.

Placing the switch in the LP position sets the amplifier to the Low Pass mode, enabling frequencies below the cut-off point to pass, adjustable between 40-400Hz.

Turn the crossover adjustment knob all the way down.With the system playing, turn the crossover adjustment knob up slowly until the desired crossover point is achieved.

ADJUSTING CROSSOVER FREQUENCY (P600.1 bd)

The crossover frequency can be adjusted between 35-250Hz.The crossover is set to LP (Low Pass) operation only.

Turn the crossover adjustment knob all the way down.With the system playing, turn the crossover adjustment knob up slowly until the desired crossover point is achieved.

INFRASONIC FILTER (P600.1 bd)

Placing the switch to "ON" engages a 28Hz infrasonic filter limiting the amount of low frequency information going to the woofer. Set this to your personal preference while listening to the system one way, then the other.

NOTE: We recommend using the infrasonic filter when using small diameter woofers with this amplifier.

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Rockford Fosgate P600..I bd manual Operation Adjusting Crossover Frequency P325.1, Adjusting Crossover Frequency P600.1 bd

P325.I, P600..I bd specifications

Rockford Fosgate has long been synonymous with high-performance audio equipment, and their series of amplifiers, namely the P325.1 and P600.1bd, continue to uphold this legacy. Engineered to deliver uncompromising sound quality and powerful output, these amplifiers are ideal for car audio enthusiasts looking to elevate their in-car listening experience.

The P325.1 is a compact monoblock amplifier designed to supply robust power to subwoofers. With a power output of 325 watts RMS at 2 ohms, it strikes an excellent balance between size and performance. This amplifier features a high-pass crossover that can be used to filter out unwanted frequencies, ensuring that your subwoofer receives only the bass it needs to perform optimally. The adjustable subsonic filter further allows users to tune the amplifier according to their specific audio preferences, ensuring clean and powerful bass reproduction.

On the other hand, the P600.1bd ups the ante with a significant power output of 600 watts RMS at 1 ohm, making it well-suited for larger subwoofers or more demanding sound systems. This amplifier incorporates Rockford Fosgate's innovative Class BD technology, which allows for higher efficiency and improved thermal performance. The Class BD design also minimizes distortion at higher volumes, rendering a cleaner sound that preserves the integrity of the audio source. The P600.1bd includes a variable low-pass filter and phase switch, enabling users to fine-tune the soundstage according to their vehicle's acoustics.

Both amplifiers are designed with premium components, featuring a cast aluminum chassis that not only enhances durability but also promotes effective heat dissipation. This is crucial for ensuring the longevity of the amplifiers during prolonged use. Additionally, these models come equipped with RCA inputs, screw-type terminals for easy wiring, and a sleek design that fits seamlessly into any vehicle setup.

In conclusion, the Rockford Fosgate P325.1 and P600.1bd amplifiers are exceptional choices for audio aficionados seeking powerful and precise sound amplification. With advanced technology, customizable settings, and robust construction, they stand out as reliable components for any high-performance car audio system. Whether you are a casual listener or a dedicated audiophile, these amplifiers offer a pathway to an enhanced listening experience on the road.