1.Start with gain control set to minimum and the crossover control and bass control rotated midway, to 12 o’clock.

2.Choose program material with substantial bass content and turn the volume control on your head unit to three-quarters of its total output (approximately 3 o’clock on rotary controls).

3.Adjust the gain control clockwise until the Protection LED flashes with each bass note but doesn’t stay lit continuously.

4.Listen to your system, making a mental note of the amount of upper bass present in your system.

5.Switch the phase control to 180 degrees and recheck for upper bass content. There may be more upper bass, less upper bass, or there may be no change. The position that provides the most upper bass is correct, but you may choose either setting according to your taste.

6.Adjust the crossover control clockwise or counterclockwise until the perceived output from BP112, as heard at the listening position, contains only low-frequency information; i.e., you should NOT hear any vocals coming from BP112 when you are seated in the normal listening position.

7.Adjust the bass-boost control clockwise or counterclockwise to suit your taste.

8.Recheck the Protection LED to make sure it’s blinking with the bass but is not lit continuously. If it is lit continuously, adjust the gain control counterclockwise until it blinks.

Note: Although this adjustment sequence will in most cases provide satisfactory tuning, the actual process may include several readjustments of each of the controls since their settings will interact with each other. If necessary, consult your authorized Earthquake car-audio dealer for help in tuning your system.

TROUBLESHOOTING

1.Power LED not lit: fuse blown, head unit not functioning properly (no remote voltage), faulty power, ground or remote connection.

2.Power LED lit but no sound output: inputs not connected, head unit not functioning properly (no output), head-unit fader control set incorrectly (2- channel connection only).

3.Output from BP112 sounds muddy or distorted: input gain set too high (Thermal Protection LED lit constantly), bass boost set too high (Thermal Protection LED lit constantly), head-unit output is distorted or blown.

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Earthquake Sound BP112 specifications Troubleshooting
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BP112 specifications

The Earthquake Sound BP112 subwoofer is a powerful and highly regarded audio solution designed to deliver deep, resonant bass for an enhanced listening experience. This subwoofer stands out in the crowded audio market thanks to its meticulous engineering, formidable performance, and an array of features that cater to discerning audiophiles and casual listeners alike.

One of the hallmark features of the BP112 is its powerful 12-inch long-throw driver, which is engineered to produce low frequency sounds with remarkable precision and clarity. This driver is crafted from high-quality materials to ensure durability while delivering impressive sound quality. The long-throw design allows for an extended range of motion, which contributes to deeper bass response and prevents distortion, even at higher volume levels.

The BP112 is equipped with an advanced class D amplifier that boasts an impressive power output. This amplifier is highly efficient and ensures that the subwoofer can deliver impressive levels of bass without consuming excessive power. The result is not only a powerful audio performance, but also a cooler and quieter operation, making the BP112 suitable for extended listening sessions.

Another notable technology found in the BP112 is its variable crossover control, which allows users to tailor the bass response to match their specific preferences and the acoustics of their listening environment. This feature enables a seamless integration with other speakers, enhancing overall sound quality and creating a more immersive audio experience.

The BP112 also includes phase control, enabling users to adjust the phase alignment of the subwoofer with their main speakers. This ensures that the bass frequencies from the subwoofer and the mid/treble frequencies from the speakers blend harmoniously, resulting in a coherent sound stage.

In terms of build quality, the Earthquake Sound BP112 is constructed with robust MDF, providing an aesthetically pleasing finish while minimizing vibrations. It features a stylish design that can seamlessly fit into various home decor styles.

Overall, the Earthquake Sound BP112 subwoofer combines innovative technologies, exceptional build quality, and outstanding performance characteristics into a single package. Whether for home theater setups, music listening, or any application requiring deep bass, the BP112 is engineered to meet and exceed expectations, all while providing an exceptional audio experience.
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