Question about Earthquake Sound PH-D2 Car Audio Amplifier

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Amp gain problems!!!

Orion hp-4800.... When I cut the radio on I have to twist the gain on the amp back and fourth to make the sound work. I cut the car off and then When I cut it back on I have to twist the gain again to make the sound work again!!!! Everytime I cut the car off and on I have this problem...

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  • 113 Answers

Is more than likely a loose connection

Posted on Jul 05, 2009

2 Suggested Answers

SOURCE: amp gain problems

amp gain controll need to be changed

Posted on Jan 20, 2009

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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What frequency do i need to have my speakers on??


Different speakers perform better under different frequencies.
The sound you receive also depends on the box you use, and the type of car its in. In my opinion the best sound is what "I like" not what others set.
There is two ways of finding your optimum settings.
But my favorite way is to do the following.
1) Set every frequency on radio, preamp, cross over to amp and 0.
2) Turn the volume to about 50% - 75% using a song with different types of base.
3)Adjust your base gain, sonic, boost, punch or what ever settings until it sounds it's deepest. Don't over do the gain or base boost.
4)Adjust the other setting to fine tune clear sound.
5)Add the highs to see if they match up.
6)Now fine tune the amps but remember you should only need to bring the gain up or down because you had already found your deepest base. This should be the last amp adjustment unless u realize u want it lower or higher.
7)Adjusting the equalizer or EQ on the sterio will depend on the song your playing.
Note: It's best to max out at about 80%-90% sterio volume.
"I max out at 60%, but that's because I don't like twisting and twisting to get my sound up or down." One twist and im setting off car alarms.

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1 Answer

Amp cuts off


sounds like you are overheating the amp, if the amp has a fan to cool it off, make sure it is turning on and working... if it is not then replace the fan to fix the problem...also turn the amp gain down a little bit and try running it again and see if it still shuts off...if it doesn't shut off then you have teh gain to high and are cutting out the amp with to much power going thru it...

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Sx 2150 one day it stop working this amp. is 17 years old help me


here is the contact details for the company...

For Technical Support: dotted_line.gif Phone: (800) 876-0800 x 2032 Fax: (760) 599-1380 E-mail: AudioTechs@directed.com

Jan 23, 2009 | Orion Car Audio & Video

1 Answer

Amp gain problems


amp gain controll need to be changed

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2 Answers

SUBS


Hi , you need to replace with thick wire , if possible attache fuse or circuit trip overload protection you may ask to thew radio store .

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Orion 275g4 Hcca amp


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Im not get any loud base, even with the gain at full turn


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