sorry guys but i can't search for this

[fantomas 10+ year member]

certainly sounds fishy...is it a specific amp or just a general question? are you sure the fuse rating isnt 2 x 20?

 

[marauder 10+ year member]

nope it's a single fuse it's a cheapy that a friend of mine gave me to use till i got a good amp. it's sound stream or storm or something.

 

[paikiah 5,000+ posts]

isn't peak power RMS X 2?

Also, if it's a cheap amp, then they've probably fed the thing more than 14V and dropped it to 1/2ohm, all while the amp is cradled in icebags. Still would've burnt out quick, but hey, they might've gotten the numbers.

 

[marauder 10+ year member]

Originally posted by paikiah isn't peak power RMS X 2?

 

Also, if it's a cheap amp, then they've probably fed the thing more than 14V and dropped it to 1/2ohm, all while the amp is cradled in icebags. Still would've burnt out quick, but hey, they might've gotten the numbers.

yeah it's not even stable at 2 ohms bridged. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif i'm probably going to go tomorrow and get me an amp or 2 if i can't find one that will do what i want it to do.

 

[maylar 10+ year member]

Unfortunately, Collins doesn't make car audio gear hehe.

SSB tranceivers have always been rated PEP (Peak Envelope Power). It's actually a meaningful rating for supressed carrier transmission. The DC power to the final stage for CW is usually less. My National NCX-5 was 200 watts PEP sideband and CW or 100 watts AM.

 

[mamey69 10+ year member]

Originally posted by marauder here's a question i have for ya.

if i have an amp that says ohh lets say 600 watts. it only has a 20a fuse. to me this is a little hard to believe because when you do the math even at 13.8 v it's no where near that. (13.8v X 20a = 276w RMS) now lets turn RMS into PEP (peak) power. 276 X 1.404 = 387.5w far below the advertised 600w. now this is how i would do it is there something special about stereo amps that i don't know about or is this just fishy. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

is that true??? because US acoustics like the 600d and 800d use small fuses but they put out the advertised power rating doesn´t they?

 

[fantomas 10+ year member]

Originally posted by mamey69 is that true??? because US acoustics like the 600d and 800d use small fuses but they put out the advertised power rating doesn´t they?

i have the usx4065 and its a 40 amp fuse. and yes, they underrate their amps.