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Bronze Member Username: Themax96seUSA Post Number: 35 Registered: Jan-05 | I have the following amp, and these specs... PYRAMID PB781X 1000 WATT 2 CHANNEL CAR AMPLIFIER: 500 Watts x 2 Output 1000 Watts x 1 Bridged Output Variable Hi/Lo Electronic Crossover Network Variable Bass Boost (0 - +18dB @ 60Hz) Variable Input Level (Gain) Control Remote Turn On/Off Gold Plated RCA Inputs High Level Molex Inputs Power On LED Indicator LED Protection Indicator S/N Ratio: > 95dB THD: < 0.04% Thermal Protection Overload Protection Short Circuit Protection Anti-Thump Turn-On Dimensions: 10.9 x 2.4 x 11 In some limited review of this amp, someone posted an RMS rating of 165... for this crap and other crap, how would I find the RMS rating? |
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Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7259 Registered: Dec-03 | not easily sometimes. google search the make/model. see if it's stated anywhere on the box or manual. check the maker's website or email them. those are my usual attempts. |
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Gold Member Username: CarguyPost Number: 1049 Registered: Nov-04 | If you still can't find anything then divide their power by 5 - 10 and that should give you the rms power. That's the number those cheap companies like to use to multiply the power numbers. So your 500W x 2 could range anywhere from 50W - 100W rms. One other thing, take a look at their fuse size. It's amps x volts = power. You can't get 1000W from a 15A fuse. |
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Silver Member Username: XxkmfdmxxSaint Petersburg, FL USA Post Number: 193 Registered: Oct-04 | A friend of mine has that amp, Acording to him it puts out 100w rms. |
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Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 7283 Registered: Dec-03 | PYRAMID PB781X http://www.pyramidcaraudio.com/itempage.asp?model=PB781X from pyramid's site, and I quote: "ALL INFORMATION IS SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. WE WILL NOT BE HELD RESPONSIBLE FOR MISLEADING INFORMATION." hahahahaha manual not listed on their site even. it's there but the link is broken. I saw an epinions comment that the amp is really 160wRMS. that'd be 80w x 2. |
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Gold Member Username: CarguyPost Number: 1050 Registered: Nov-04 | That is the funnest thing I've heard from a manufacturer. |
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Bronze Member Username: Themax96seUSA Post Number: 38 Registered: Jan-05 | Yeah I seen the same comment on epionions before I put opened this thread. That is dumb as hell, how can they have a product for sale, but the specs is subject to change. Man that is horrible. I just wanted to know if there was some other method to use if I couldnt find it online or anywhere else when I ecounter people with these crappy amps so I can tell them what it really is. I guess I can check amp fuses as a reference. I cant believe they sell this crap! By the way, I hooked it up to one 10" Type R 2ohm, and it sounded hoirrble. |
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Bronze Member Username: Themax96seUSA Post Number: 39 Registered: Jan-05 | With all the dealings I have with these crappy amps, I am going to make a list of crap to crappiest selection... so if people are buying this very low end stuff, they could at least choose the least of the junk. Pyramid is definitly in the list. Suprisingly so far, so American Legacy amps was ok... I'll post my list for reference when I have enough experience dealing with all this low end crap. |