high level input connections

4 ch amp PB681X • PB881X • PB1881X

4 CH floating ground connections

pb681X

pb881X

 

 

 

LEVEL

FREQ.

BASS

HPF

HPF

LPF

BASS

FREQ.

LEVEL

 

 

 

 

 

CH 4

BOOST LPF

BOOST

CH 2

 

 

CH4 CH3

 

 

HPF

 

 

 

 

 

HPF

 

 

+CH2 CH1

 

+ -

- +

 

 

 

 

 

 

 

 

 

 

 

-

- +

 

HI

IN

 

MIN MAX

LPF

0 +18db 35 400

80 2.5k

80 2.5k

35 400

0 +18db

LPF

MIN MAX

 

HI

IN

 

CH 3

 

FULL

Hz

Hz

Hz

Hz

 

FULL

 

CH 1

pb1881X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REMOTE

 

 

 

 

 

 

 

 

 

 

 

 

 

BASS BOOST(CH3/4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROTECT

POWER

 

 

 

 

 

 

 

 

 

 

LOW IN

 

 

 

 

 

 

 

 

 

LOW IN

 

 

REAR L

 

 

R

L

 

 

 

R FRONT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORANGE

 

 

 

 

 

 

 

ORANGE

BLACK

 

 

 

 

 

 

 

BLACK

BLACK

 

 

 

 

 

 

 

BLACK

ORANGE

 

 

 

 

 

 

 

ORANGE

from speaker terminals

PLEASE NOTE! If using high level inputs, do not use the low level RCA inputs at the same time!

19

4 CH harness wiring for common ground connections

CH 3/4

 

CH 1/2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REAR L

 

R L

R FRONT

ORANGE

 

 

 

ORANGE

 

 

 

 

 

 

BLACK

 

 

 

BLACK

BLACK

 

 

 

BLACK

ORANGE

 

 

 

ORANGE

 

from speaker terminals

 

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Pyramid Car Audio PB781X, PB681X, PB881X, PB1881X, PB481X, PB1281X manual High level input connections, Rear L Front

PB1881X, PB881X, PB781X, PB481X, PB1281X specifications

Pyramid Car Audio has established a solid reputation for producing high-quality audio systems that enhance the listening experience in vehicles. Their models PB681X, PB1281X, PB481X, PB781X, and PB881X are popular choices among car audio enthusiasts looking for dependable, high-performance sound systems. Each model comes with its unique features and technologies, catering to various listening preferences and vehicle requirements.

The PB681X is an entry-level offering that doesn't sacrifice quality for affordability. This 6x8-inch speaker delivers a powerful 300 watts peak power with a 4-ohm impedance, providing robust sound with impressive clarity. Its durable poly-injection cone and rubber surround ensure extended longevity while enhancing low-frequency response, making it an ideal choice for those who want better sound without breaking the bank.

For those looking for a bit more power, the PB1281X features an impressive 1000 watts peak power with an 8-inch subwoofer. This model is designed with a high-temperature voice coil that minimizes distortion, delivering crisp and clear sound even at high volumes. Its adjustable ported enclosure adds versatility, allowing users to optimize bass response based on individual tastes.

The PB481X offers a unique combination of features aimed at delivering high fidelity sound. This model integrates a 4-channel amplifier with built-in Bluetooth connectivity, allowing for seamless streaming from mobile devices. With 480 watts peak power, it uses advanced circuitry to efficiently manage power output while ensuring minimal interference and maximum sound quality.

Next in line is the PB781X, which blends power with portability. This 7-inch subwoofer packs a whopping 800 watts of peak power and features a heavy-duty magnet structure. The model is designed for easy installation in a variety of vehicle types, making it an excellent choice for anyone looking to upgrade their sound system without extensive modifications.

Lastly, the PB881X stands out as a premium model, offering advanced technologies and superior sound quality. It features an 8-inch subwoofer capable of producing 1200 watts peak power. The high-quality enclosure is optimized for bass performance, while the durable materials ensure protection against wear and tear. Features like adjustable crossover settings and remote bass control increase flexibility for users who want to customize their audio experience.

In summary, Pyramid Car Audio’s PB681X, PB1281X, PB481X, PB781X, and PB881X models present a diverse lineup suitable for different users, from casual listeners to serious audiophiles. With a focus on durability, performance, and ease of use, these products cater to anyone seeking an enhanced automotive audio experience.