Earthquake Sound Operating & Controlling Your CP-8, Connecting Your CP-8, Cautions, Amplifier

CP-8 Installation Manual

Operating & Controlling Your CP-8

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

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