Trouble Shooting the CP-8, HUM Noise | Earthquake Sound specification

CP-8 Installation Manual

SUBWOOFER	SUBWOOFER
LFE+L	LFE+R

Figure 8. Two (2) CP-8 Arrangements - Seating Based

Placing the two subwoofers on the horizontal axis of the

seating area

SUBWOOFER

LFE

SUBWOOFER

LFE

Figure 9. Two (2) CP-8 Arrangements - Seating Based

Placing the two subwoofers on the vertical axis of the

seating area

Trouble Shooting the CP-8

LED DOES NOT LIGHT ON

1.Check for the appropriate AC voltage in power outlet.

2.Inspect the power cable. Never use one that has been altered with.

3.Inspect the fuse† (see Fig. 1H on page 2).

†The fuse holder slides outward. Simply use a flat screw driver to pry it open. Be sure to use the appropriate fuse size.

LED TURNS ON BUT STAYS RED OR NO OUTPUT

1.If LED does not turn green

Unplug the power for 5 seconds. Position the power switch (Fig. 1A on page 2) to ON and connect the power again. Turn the system on and check if the LED status change to green as it should do so when the amplifier is properly working.

2.If LED is green but there is no output

Turn the power switch (Fig. 1A on page 2) to OFF position. You should see the LED turn red. Set the power switch to the AUTO (center position) and turn the audio source on. If signal were present at the RCA, you should see the LED status light turns green and the subwoofer will turn on and produce output. If LED remains red, then the problem is at the source or the audio cable:

a.Trouble shoot the RCA cables by temporarily connecting them to the stereo left and/or right out of the source unit. If the cables are good, the subwoofer must be heard.

b.If the cables are okay but no sub out from receiver/processor, check the subwoofer settings at the source. Make sure “ON” or “Ultra” is selected (review the owner’s manual of the source unit for setting up the sub output).

HUM NOISE

Unplug the RCA cables and check for noise

a. If the noise goes away, then the problem is at the source. Make sure that all units’ chassis are grounded together (~18

- 22 AWG wire), with the exception to our subwoofer.

b.Grounding the loop isolator (on the RCA side) and the cheater plug (on the AC supply side) may be a temporary/quick solution for such problem. However, we always recommend using solution a.

c.Avoid using line conditioner or surge protector as it may damage the subwoofer’s internal circuitry.

d.If the noise is still present even when the RCA cables are unplugged, try changing the AC outlet. If the problem still occurs at this point, contact an Earthquake technician.

For more technical support, please contact us by:

Phone: 1-800-576-7944

Email: tech@earthquakesound.com

www.earthquakesound.com

CP-8 specifications

The Earthquake Sound CP-8 is a powerful and compact subwoofer designed to deliver deep bass and enhance the overall audio experience, making it a popular choice for home theaters, music enthusiasts, and professional audio setups. With an array of impressive features and advanced technologies, the CP-8 stands out in the realm of compact subwoofers.

One of the primary characteristics of the CP-8 is its 8-inch driver, engineered to produce rich and resonant bass frequencies that can fill a room without overwhelming the main speakers. This driver is complemented by a high-efficiency amplifier that powers the unit, ensuring that it can deliver impressive output while maintaining clarity and precision in sound reproduction.

The CP-8 is equipped with a unique opportunity for fine-tuning sound thanks to its adjustable crossover frequency and phase control. This allows users to match the subwoofer seamlessly with other audio components in the setup, providing the versatility needed for various listening environments. Furthermore, the adjustable volume control enables users to set the desired bass levels according to their preferences.

One of the standout technologies employed in the CP-8 is its advanced DSP (Digital Signal Processing). This technology optimizes the audio output, ensuring that distortions are minimized and the overall sound is balanced across a wide range of frequencies. This is especially beneficial in delivering an immersive experience in movies and music, as the subwoofer can reproduce low-end frequencies effectively without losing detail in mid and high ranges.

The CP-8 also incorporates a sleek and compact design, allowing it to fit into tight spaces without compromising on performance. Its sturdy construction ensures durability, while the attractive finish complements any modern audio setup. Additionally, the inclusion of both speaker-level and line-level inputs makes it easy to integrate with a variety of audio systems, making it an accessible option for both casual listeners and audiophiles alike.

In summary, the Earthquake Sound CP-8 is a versatile and powerful subwoofer that combines advanced technologies with user-friendly features. Its robust performance, adjustable settings, and compact design make it an exceptional choice for anyone looking to enhance their audio experience, be it in a home theater, studio, or any listening environment. Whether you're watching your favorite movies or enjoying your music collection, the CP-8 promises to deliver an impactful and enjoyable sound experience.