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Old 23rd June 2004, 03:00 PM   #1
diyAudio Member
Join Date: Jun 2004
Location: New Mexico
Question Earthquake PA2075 - Wire Colors?

I have an old Earthquake PA2075. I bought it about 10 years ago and don't have the book anymore. I pulled it out of the closet and would like to use it again but I don't know what wires go to what. There are 5 wires in the modular plug: white, red, brown, purple and orange. From looking inside, I think the orange is the turn-on wire. From there on I'm not sure about the rest.

Also, what size fuse should I put inline with the battery connection? This amp is 2x75W RMS and stable to 2ohms. I have a DVC Orion XTR 15" sub (also stored for several years) I'd like to run. Does anybody know if this amp is bridgable? I think it is but can't remember. I used to run this amp on my highs with a PA2300 running a pair of these 15"s and it was an awesome system.

I have searched the internet for two days for this info. but I guess these amps are too old for internet-based documentation.

Any help would be much appreciated!
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Old 23rd June 2004, 07:52 PM   #2
diyAudio Member
Join Date: Jun 2004
Location: New Mexico
Default Earthquake PA2075 - Wire Colors - Found

I just got an email from a guy in Germany identifying the wires:

2 Channel
- Violet = Left Channel -
- Red= Left Channel +
- Orange= Turn on wire
- White= Right Channel +
- Brown0 Right Channel -

Mono Application 1 Channel
- Orange= Turn on Wire
- Red= +
- Brown= -

Thanks to Ciao Christian for this info!!! These wires are the same as the Earthquake PA2300 and probably the Earthquake PA2150.
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