Power Supply Connections, Tuning BP112

POWER SUPPLY CONNECTIONS

	HI INPUT			LOW	Power-Supply Connections
	HI INPUT			LOW	Positive: Connect a wire (at least 12-gauge)
L+			R+	INPUT

				L	between the vehicles +(positive) battery
				L	between the vehicles +(positive) battery
L-			R-	R	terminal and the "+12V" connection on BP112
				R	amplifier. You must install a fuse holder with a


		Bass			50-75A fuse, within 18" of the battery. Route
Level		Boost		LPF	the power wire through a grommet in the
					vehicle's firewall. If there is not factory
Min	Max	Min	Max 50Hz 300Hz		grommet available, you must install one.
Remote		Subsonic		Phase Shift	Negative: Connect a wire (at least 12-gauge)
	ON		ON	0	Negative: Connect a wire (at least 12-gauge)
	OFF		OFF	180	between the -(ground) connection on BP112
					amplifier and a bare metal surface near the
		Power Thermal OC DC			mounting location. You may need to scrape
				Protection	away some paint from the metal surface to
BASS				Protection	insure a good connection. Use a screw and a
EXT					insure a good connection. Use a screw and a
EXT					lock (star) washer.
REM	GND +12V		Fuses		lock (star) washer.
REM	GND +12V		Fuses
					Remote: Connect a wire (usually blue)
					between the remote terminal on BP112 and
POWER			15A	15A	the remote output wire on the back of your
					head unit (deck). This wire should provide
					between +5VDC and +12VDC when the unit

is on and no voltage when the unit is off.

Note: If your head unit provides preamp outputs it will have remote wire. If your radio provides only high-level outputs, it may not have a remote wire. If you will be using the high level outputs from your head unit, you do not need to connect the remote output. The speaker level inputs will sense voltage on the speaker wires and BP112 will turn itself on. If you are using only lin-level (RCA) inputs, you must connect the remote wire to the BP112.

Input Connections:

Note: BP112 is equipped with two line level (RCA) inputs and four high level inputs. Any combination of high-level and speaker-level inputs may be used to provide nonfading bass when connected to a head unit with four outputs.

Head units with dedicated subwoofer outputs (line level): Connect the

subwoofer output form the head unit to line-level inputs.

Head units with four line-level (RCA) outputs:

Connect the four high-level outputs to the four high-level inputs on the BP112.

TUNING BP112

BP112 provides several controls that simplify sonic integration with virtually any vehicle’s unique acoustic properties. Please read the following section carefully to familiarize yourself with the function of each control.

Controls

Level: The Level control is a rotary knob on the panel with the electrical connections. This switch will line match the voltage of your head unit, which will deliver high sound quality and performance.

Bass Boost: BP112’s interaction with the acoustics of your vehicle may produce a peak or dip in BP112’s response. For the vast majority of vehicles, these peaks or dips occur at about 40Hz — around the frequency of a low bass guitar note. Use this control to correct that peak or dip. Adjustment between –6dB and +3dB is possible. Although response without any sharp peaks or dips is technically correct, you may choose the position that best suits your taste.

LPF: The low-pass filter, blocks unwanted high frequencies to allow cleaner low- frequencies.

Gain Control / Remote Gain: This control will adjust the input sensitivity of BP112. Use this control to adjust the relative volume (loudness) of BP112 with respect to the other speakers in the vehicle. To use the remote gain control you must set the main gain to it's max level, then adjust the remote gain to your preference. Note: If the main gain is not set to max then it will limit the usability of the remote gain. Also be sure to make sure that your system is turned OFF while executing this process, so that you do not damage your amplifier or subwoofer.

Subsonic: BP112’s interaction with the acoustics of your vehicle may produce a peak or dip in BP112’s response. For the vast majority of vehicles, these peaks or dips occur at about 40Hz — around the frequency of a low bass guitar note. Use this control to correct that peak or dip. Adjustment between –6dB and +3dB is possible. Although response without any sharp peaks or dips is technically correct, you may choose the position that best suits your taste.

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	www.earthquakesound.com	Specifications Are Subject To Change Without Notice

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.