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Pyramid Amp


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shafted 
Member - Posts: 3
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Joined: June 29, 2004
Location: United States
Posted: July 21, 2004 at 10:23 AM / IP Logged  
I found thid Pyramid PB-290GB 300w Gold Series amp in a trash can.Pyramid Amp - Last Post -- posted image.    Anyways, i repaired the rca input jacks and all of that schwag and it worked fine. Can someone tell me the exact specs on this amp other than what it says on the amp itself. 300w max, .04THD, 2 ohm stable.----->it says this on the amp. Thanks
2 12' Profile Subs
2 12' Sony Xplod P5 Subs
1 18' Peavey Black Widow
Pyramid Gold Series 300w amp
Profile 1000w mono amp
"An old school" Rockford Fosgate Punch 100
kgerry 
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Joined: February 07, 2004
Location: Saskatchewan, Canada
Posted: July 21, 2004 at 10:40 AM / IP Logged  

you should have left it where you found it... lol

there is no way to accurately determine the output of this amp without actually metering the output stage during operation... but these " hung wow " brands tend to grossly exaggerate their ratings.. i'd say it 's probably 35-50 a side....

Kevin Gerry
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Classic Car Audio
since 1979
DYohn 
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Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: July 21, 2004 at 11:12 AM / IP Logged  

kgerry wrote:
you should have left it where you found it...

Pyramid Amp - Last Post -- posted image.

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shafted 
Member - Posts: 3
Member spacespace
Joined: June 29, 2004
Location: United States
Posted: July 21, 2004 at 12:11 PM / IP Logged  
i was just wondering. I don't use it anymore, i use my old Punch 100 instead. When I did have it hooked up, I had it in bridged operation w/parallel wiring and it made my profiles bottom out. Who cares. One thing, if this amp was 35-50 a side, if you do the math, then how come I blew up a 20 amp power supply with it?
2 12' Profile Subs
2 12' Sony Xplod P5 Subs
1 18' Peavey Black Widow
Pyramid Gold Series 300w amp
Profile 1000w mono amp
"An old school" Rockford Fosgate Punch 100
Leif 
Copper - Posts: 71
Copper spacespace
Joined: July 15, 2004
Location: United States
Posted: July 21, 2004 at 4:47 PM / IP Logged  
Maybe it short circuited :)
I concur about the pyramid brand (it's the lowest of the low) but if you do want to find out exactly how much power it's putting out, it's not that hard to do, as long as you have a good car battery (or other 12v supply with plenty of current), an oscilloscope, a 4 ohm high power resistor (150w perhaps), an AC voltage meter, a DC voltage meter, a tone generator (or cd player and a cd with test tones) and enough patience to wire it all up into a test rig :).
///Leif

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