Rf T40001bd Questions

[andym85]

i know a quite a few of you on here are running them (or just a lower power model)...do u think they can handle a burp at .5ohm and if they can, how much power could be expected from them? and how much current do these things draw...as in, could i burp it off a 350amp fuse at .5ohm....

all of this is assuming that the electrical system is plenty stout enough to handle this...

thanks

[Derrick824]

It is not recommended to run any RF amps @ 0.5ohm. They'll go into protect. FYI the T4K has an average current draw of 250a on music @ 1ohm (500a max draw). For 0.5ohm I'd look into a Sundown 3000D or an IA 40.1.

[cmrs2k]

It is not recommended to run any RF amps @ 0.5ohm. They'll go into protect. FYI the T4K has an average current draw of 250a on music @ 1ohm (500a max draw). For 0.5ohm I'd look into a Sundown 3000D or an IA 40.1.

X2

[dwright27]

i hear the 40.1s can be ran .35 daily with a stout electrical, and the sundowns love low impedances also

[andym85]

i was thinking of a 40.1 also...what if i ran the RF amp at 1ohm like its rated...do u think its possible to burp it off a 100amp fuse.

the reason im asking about all this fusing stuff is because that is how your class is determined in meca. and since im done with school in december i really wanna compete next year and i am trying to decide what i wanna run and what class i wanna be in...

[snafu]

i was thinking of a 40.1 also...what if i ran the RF amp at 1ohm like its rated...do u think its possible to burp it off a 100amp fuse.

That's an interesting question. Fuse values are determined by the amount of current that can be passed across the fuse for a given length of time. If your burp was less than one second, it is quite possible you could use a smaller fuse, but I'm not sure how much smaller. Keep in mind that the T4k1bd comes with a 500 Amp ANL fuse stock as it can easily consume that on sine waves at full output. I'd be interested to hear others' experience in regards to this.

In addition, as others have stated, there is no power advantage to operating this amplifier below it's rated impedance. It will make highest power between 1 and 1.4 ohms . . . of which the impedance curve of your subwoofers will dictate.

[Slinky]

i would DEFINATELY NOT burp them at .5

[andym85]

That's an interesting question. Fuse values are determined by the amount of current that can be passed across the fuse for a given length of time. If your burp was less than one second, it is quite possible you could use a smaller fuse, but I'm not sure how much smaller. Keep in mind that the T4k1bd comes with a 500 Amp ANL fuse stock as it can easily consume that on sine waves at full output. I'd be interested to hear others' experience in regards to this.

In addition, as others have stated, there is no power advantage to operating this amplifier below it's rated impedance. It will make highest power between 1 and 1.4 ohms . . . of which the impedance curve of your subwoofers will dictate.

yea, after reading the power tests of the sundown 3000amp and after your coments, i now realize that there isnt that big of an advantage of running below rated impedance...

but my question still stands, could i do a one or two second burp off a 100amp fuse from either a 4000.1 or 3000.1?? i really hate that meca rule..lol

[emperorjj1]

FYI it took a 50 amp car fuse to start my T30001bd (used the maxi that came on the bcm wire or something)... it blew both 30 and 40amp audio fueses with no ouput either time. Im not sure how long the $kw would last on a 100a fuse

[andym85]

im debating on a 4kw and a 3kw...as long as i can squeeze a few second burp out of a 100amp then that is straight, if it cant be done with a 4kw, then i guess ill have to "settle" on the 3kw...