Question about Pyramid PB70 Car Audio Amplifier

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I have a Pyramid PB70 audio amp that I am mating to a factory stereo in a 1997 Nissan pickup. When I installed it (according to diagram) , and powered it up , I got a clicking , popping noise from the speakers , then blew a fuse . I checked over the wiring detail , which was per diagram , and measured the ground wire from the amp , and it was showing about 5 volts whenever the stereo was on , whether or not the bypass button was pressed on the amp. Is this a "floating ground" issue , and do I need an adapter to mate this booster to my stock radio ? Thanks , Clint

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  • 2,931 Answers

Recommend contacting a local car audio professional or Pyramid customer support directly here:

http://www.pyramidcaraudio.com/ContactUs.aspx

I have a Pyramid PB70 audio amp that I am mating - helpful-j2fqtt4x4km4a1x1cbly0mof-5-0_10.png

Posted on Feb 10, 2018

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6 Suggested Answers

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SOURCE:

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Pyramid SE301-VL amp wiring confusion...

Captain_Bill,

Red - should be fused & is the +12Vdc system supply voltage.
Chassis = System ground.
Individual Green, Grey, & cooresponding blacks will be the right & left chan Audio ins (Black = neg).
Paired bl/blwh, br/brwh, grey/grwh, & green/grwh will be the audio outs.

Hope this helps !!!!

Dale EE

Posted on Sep 12, 2008

  • 313 Answers

SOURCE: Output voltage

for his charger the output volatge is 36v to 52 volts dc.

Posted on Sep 19, 2008

  • 631 Answers

SOURCE: pyramid ps-36kx

Generally, the fuse only blows when the rectifiers fail. In other Pyramid supplies, they use a square, 4 terminal bridge rectifier. They probably use the same thing in your supply.

Let me know if you have any other questions.

Posted on Nov 16, 2008

Paul319581
  • 101 Answers

SOURCE: How to hard rest PDAL with I-Mate keys. How to skip Alignment procedure with I-mate keys

MSP_RemoteAlignment use this software to skip that screen !

Posted on Jan 07, 2009

fossildude
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Posted on Feb 19, 2009

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helpful-j2fqtt4x4km4a1x1cbly0mof-5-0_9.png

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Yes. Recommend contacting a local car audio professional or Pyramid customer support directly here:

http://www.pyramidcaraudio.com/ContactUs.aspx


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Car Radio Battery Constant 12v+ Wire: Orange
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Car Radio Ground Wire: Black
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Car Audio Front Speakers Location: N/A
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1995 Nissan Pickup Truck Car Stereo Wiring Diagram
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Car Radio Accessory Switched 12v+ Wire: Blue
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-->

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Nope. Recommend contacting a local car audio professional or Pyramid customer support directly here:

http://www.pyramidcaraudio.com/ContactUs.aspx

helpful-j2fqtt4x4km4a1x1cbly0mof-5-0_9.png

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