Using the line speaker-level inputs

If you are using a receiver which does not have a subwoofer output or line level outputs (pre-outs), you can connect its speaker outputs to the subwoofer's Speaker-Level inputs. The front speakers can still be connected to your receiver.

The subwoofer's internal amplifier supplies the power to reproduce the low frequency range. It receives a sample of the signal going to your front speakers. (An insignificant fraction of your receiver's power is transferred to the subwoofer).

There is no need to use the Speaker Level inputs if you are using a separate amplifier and pre-amplifier. Such systems are best connected using the Line Level Inputs as shown in the previous diagrams.

If you are using the Line Level inputs and there is an excessive amount of noise or hum present, using the Speaker Level inputs may yield a lower background noise level.

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FF8 specifications

Earthquake Sound FF8 is a powerful subwoofer that has been designed to deliver high-quality audio performance in various sound environments. One of the standout features of the FF8 is its incredible bass response, which is essential for music enthusiasts and home theater systems. With an 8-inch driver, the FF8 is capable of producing deep, resonant low frequencies that can significantly enhance the overall listening experience.

The subwoofer employs advanced technologies to optimize its performance. It features a high-efficiency Class D amplifier, which not only provides ample power to the driver but also ensures energy efficiency. The amplifier delivers an impressive output, allowing the FF8 to fill larger spaces with rich, full bass without distortion. This makes it ideal for both home entertainment setups and professional audio applications.

Another notable characteristic of the Earthquake Sound FF8 is its compact design. Unlike many traditional subwoofers that can be bulky and cumbersome, the FF8 offers a sleek profile that fits seamlessly into any room. This compactness does not compromise its performance, as it is engineered to produce robust sound in a smaller footprint.

In terms of connectivity, the FF8 is versatile, supporting various input options to cater to different audio systems. It features line-level inputs that facilitate easy integration with receivers and amplifiers, as well as speaker-level inputs, making it compatible with a wide range of audio equipment.

The FF8 is also equipped with adjustable controls for crossover frequency and volume, allowing users to customize the audio output to suit their specific preferences and room acoustics. This flexibility enhances its usability in different environments, from personal listening spaces to larger venues.

Overall, the Earthquake Sound FF8 is a well-crafted subwoofer that showcases a blend of innovative technologies and user-friendly features. Whether for music lovers seeking a richer sound or for home theater enthusiasts craving immersive audio experiences, the FF8 stands out as a reliable choice that does not compromise on quality or performance. With its powerful bass, compact design, and flexible connectivity options, it truly embodies the essence of exceptional audio engineering.