Operating & Controlling Your CP-8

CP-8 Installation Manual

Before you make any connections to power up your Couch Potato, please double check the following:

1.The input power switch 110 AC or 220 AC based on your local

power.

2.Please make sure that the gain/volume knob is set to minimum.

3.Make sure that the power switch is set to OFF.

4.The crossover should be set to 10 o’clock position.

Connecting Your CP-8

LOW LEVEL INPUT CONNECTION

1.Locate the LINE IN RCA on the CP-8 amplifier (Fig. 1F)

2.Connect the CP-8 to the signal source, i.e. AV receiver. There is no need to have both RCAs to the signal source since the subwoofer is often operated in mono signal. If the receiver does not have adequate signal level, then you may want to use both RCA inputs in order to obtain higher signal level.

3.If needed, connect the LINE OUT RCA (Fig. 1E) to another amplifier to drive satellite speakers (front or rear). The LINE OUT RCA has high pass filtered signal at about 70Hz (5dB/Octave cut off).

HIGH LEVEL INPUT CONNECTION

The CP-8 has a HIGH LEVEL INPUT connection (Fig. 1J). For the best performance, you might consider RCA connection if it is available on your source. If not, then high level input will do.

1.Since bass is mono, you can connect the high level input of any of the front speakers to your CP-8. For ease of wiring, pick the speaker that is closest to the subwoofer. Simply piggy back a wire from the speaker to the subwoofer and you’re up and running.

Note: The high level input for satellite speakers is fitted with a high pass filter (70Hz). It is only powered when the main or front speaker signals are driven into the HIGH LEVEL INPUT (Fig. 1J). These terminals are marked with red and black to indicate the (+) & (-) respectively.

2.Adjust the subwoofer low pass filter cut off to near 100Hz at first, slowly bring down the crossing point until you eliminate any emanating vocals from the subwoofer. An ideal crossing pint range from 55 to 70Hz.

3.In case the CP-8 becomes out of phase with the satellite speaker, flip the phase switch to correct the problem (maximum bass is only achieved when the sub is in phase with rest of your speakers).

(!)NOTE: DO NOT USE HIGH LEVEL AND RCA INPUTS AT THE SAME TIME.

Cautions

Features & Specifications:

AMPLIFIER

-Power Output: 300 Watts

-Frequency Response: 20Hz - 180Hz

-Crossover Frequency: 40Hz - 130Hz

-Crossover Slope: 12dB per Octave

-THD: 0.001% @ 50 Hz.

-Input Impedance: 47,000 ohms

-Input Sensitivity: 50mV to 2.3V

-Power Supply: 115V/230V (50Hz~60Hz)

-Fuse Rating: 1 Amp

SUBWOOFER

-300 watts 8" subwoofer

-2" high temperature voice coil

-Durable pressed paper cone

-Long Excursion santoprene surround

-48oz high density magnet

-89dB 1W/1M

-FS: 38Hz

-Qts: 0.516

SYSTEM

- Dimensions (H - feet included x W x D):

7” (177.8mm) x 12” (304.8mm) x 24” (601mm)

- Weight: 24.58 lbs / 11.15 kgs

(!)Do not place the subwoofer in an environment exposed to dust, excessive moisture or heat. Direct exposure to sun light will over time deteriorate the enclosure finish and may cause the amplifier to overheat.

(!)To prevent electrical shock, never open the subwoofer cabinet before disconnecting the power cord from the amplifier's main socket.

(!)In the event of a blown fuse, replace it with a 1 ampere fuse only. Over fusing voids the warranty and will destroy the amplifier.

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.