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match typical satellite speaker systems to enhance the over all 

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n behalf of everyone here at Earthquake Sound Corporation, 

sound quality and performance of your system.

thank you for choosing the Couch Potato (model no. CP-8) by 
Earthquake.

The slim enclosure  design  allows  the user to place the CP-8 
under the sofa, behind it or under the bed. Now you can have 

The CP-8 is a self-powered subwoofer that allows the user to 

massive bass while using unused space.

deliver massive fast bass into their seating position. By placing 
the subwoofer close to you, the bass is faster, more powerful 

Enjoy.

and it also carries massive sub harmonic vibrations with it. 

With an integral high-power 300 Watts MAX amplifier, the CP-8 
subwoofer  provides  for  an  RCA  input,  high  level  input  with  a 
crossed high level output. CP-8 high output level is designed to 

Dear Valued Customer,

POWER  SWITCH  (Off/AUTO/On)  -  Complete  with  light 

indicator. When switched to “AUTO” mode, the CP-8 will 
turn off after 15 minutes if no audio signal is detected.

PHASE SHIFT - 0 to 180° subwoofer phase shift switch.

VOLUME  CONTROL  -  Manual  adjustment  of  the 

subwoofer’s sound level. Always start at MIN position 
and  slowly  increase  the  volume  to  reach  the  desired 
subwoofer sound level.

XOVER FILTER - This 12dB/Oct variable crossover filter 

is designed to control the subwoofer’s cut off frequency 
(range: 40Hz to 130Hz).

LINE OUT RCA - High pass filtered RCA output jacks with 

left and right line output signals. The line out RCAs are 
not functional when the line in signal is derived from a 
sub-filtered output of an external processor.

LINE IN RCA - Input jacks to accept up to 2.3 Volts of audio 

input signal (mono and stereo).

HIGH  LEVEL  OUTPUT  -  High  pass  filtered  output 

terminals  designed  to  power  up  stereo  satellite 
speakers.

MAIN  POWER  FUSE  - Always  replace  protection  fuse 

with one with similar value. An extra fuse is provided for 
your convenience.

POWER INPUT SELECTOR - The CP-8 operates in 115V 

or 230V environment. Simply slide the selector to the 
required power input setting.

HIGH LEVEL INPUT - Clamp style input terminal accepts 

high  level  audio  input  from  main  or  front  system 
speakers (up to 10 Volts).

Let’s get familiar with Your Couch Potato (CP-8)

www.earthquakesound.com                                                                      2

CP-8 Installation Manual

Figure 1.

Key Connection and Controls

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PHASE

AUTO

POWER

HIGH LEVEL INPUT

VOLUME

CROSSOVER

OFF

ON

0

O

180

O

120Hz

80Hz

LEFT

FUSE: 115V, T2A/250V
FUSE: 230V, T1A/250V

FUSE

LEFT                  

RIGHT

RIGHT

HIGH LEVEL OUTPUT

P O W E R E D    S U B W O O F E R

DIGITAL             

P O W E R                    

Couch Potato

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Summary of Contents for CouchPotato CP-8

Page 1: ...Sound That Will Move You CouchPotato 300 Watt Digital Powered Subwoofer User s Manual ...

Page 2: ...slowly increase the volume to reach the desired subwoofer sound level XOVER FILTER This 12dB Oct variable crossover filter is designed to control the subwoofer s cut off frequency range 40Hz to 130Hz LINE OUT RCA High pass filtered RCA output jacks with left and right line output signals The line out RCAs are not functional when the line in signal is derived from a sub filtered output of an extern...

Page 3: ...iven 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...

Page 4: ...your speaker system let your own Front speakers should be placed at an equal distance from ears be the judge the TV and the primary listening spot sweet spot Together with the center channel speaker they should form a slight arc with all three speakers at exactly the same distance from where you sit as illustrated in Figure 2 CENTER CHANNELSPEAKER PLACEMENT To make life even easier the distance be...

Page 5: ...r stands slightly behind and to the sides of your listening position Avoid aiming them directly at your listening position You may also try any of our Sweet spot IQ Series and Imãge in ceiling speakers Surround speaker placement which is ideal for home theater is not necessarily perfect for multichannel music listening where a precisely focused rear sound stage is best If both listening types are ...

Page 6: ...you move around the room from one location to another When you reach a spot where the bass sounds best that may be the location where you want to place the subwoofer After finding the best subwoofer placement you will need to set the phase Earthquake subwoofers are equipped with 0 180 phase control switch Simply play one of your favorite songs and switch the phase control back and forth You may ne...

Page 7: ... 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 ...

Page 8: ...arthquake Sound reserves the right to amend details of the specifications without notice Copyright Earthquake Sound Corporation Earthquake Sound Corporation 2727 McCone Avenue Hayward CA 94545 Phone 510 732 1000 Fax 510 732 1095 ...

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