Average cost of MDF?

[JBGabriel 10+ year member]

Another question... do you think 4 AWG can run ~1250 RMS?

Yes but 0/1 gauge is better.

 

[wasted ink 10+ year member]

Another question... do you think 4 AWG can run ~1250 RMS?

i was just saying in another thread.. tops ill put through 4ga is 1000.. anything over that i feel better using 1/0... just me

 

[IDSkoT 5,000+ posts]

i was just saying in another thread.. tops ill put through 4ga is 1000.. anything over that i feel better using 1/0... just me

I feel you.

But I'm on a budget build... and, yeah. 1/0 is expensive as fck...

So far I'm thinking about spending $90 on a 12" RF Punch, $80 on some Phoenix Gold RFD Comps, and a Zapco i250 for $80, too.

Up to $250, and don't even have a sub amp... and the budget was SUPPOSED to be $300... but I can get it up to $400.

But even still, $150 for a sub amp + wiring + wood isn't gunna happen... unless I find some good deals.

 

[wasted ink 10+ year member]

honestly, a $300 budget isnt going to get you much. at all. just save up, get good stuff. even if it takes a little longer. trust me, its worth it in the end.

 

[ls2poweredgoat 5,000+ posts]

$26 here in Florida, at Home Depot.

 

[cman0655555 10+ year member]

22 here in ky

 

[Spectrum]

$25 here

 

[Pioneer~Saturn 5,000+ posts]

I believe its just under 22 here in Dayton, Ohio

 

[Justin89T 10+ year member]

****, I guess its kinda expensive here.

Its 29.xx at Home Depot.

I just bought a sheet of 1/2 inch for 20.

 

[dman4486 5,000+ posts]

Another question... do you think 4 AWG can run ~1250 RMS?

edit: since I had it on the clipboard already

 

[audioholic 5,000+ posts]

Wow, someone does still know what a wire sizing chart is. I had started to think using one was a lost art form around here.

edit: oh and using amplifier output to size your wire is a lousy way to figure it.

 

[dman4486 5,000+ posts]

Wow, someone does still know what a wire sizing chart is. I had started to think using one was a lost art form around here.
edit: oh and using amplifier output to size your wire is a lousy way to figure it.

lol....my amp always puts out rated power:fyi://content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

even when the volume is 0

 

[mapolley07 10+ year member]

i usually go by the fuse sizes in the amp to determine maximum amperage draw and then pick a wire thats rated for that draw.

e.g. an amp that has 2 50A fuses would be 100 amps of current draw, and Knu 4ga is rated to 120 amps, so I go with 4ga. If draw is over 110A I go ahead and bump up to 1/0. i like to give myself some overhead, and I fuse for the amperage rating of the wire

 

[dman4486 5,000+ posts]

i usually go by the fuse sizes in the amp to determine maximum amperage draw and then pick a wire thats rated for that draw.
e.g. an amp that has 2 50A fuses would be 100 amps of current draw, and Knu 4ga is rated to 120 amps, so I go with 4ga. If draw is over 110A I go ahead and bump up to 1/0. i like to give myself some overhead, and I fuse for the amperage rating of the wire

do you remember to take into account length of wire? knu 4 gauge is rated to 120 amps over what distance?

 

[audioholic 5,000+ posts]

lol....my amp always puts out rated power:fyi://content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif






even when the volume is 0

My point was it ignores amplifier efficiency when you size wires by amplifier output... even when using actual measured output, not just rated output. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Guys, be careful to not confuse a wire capacity chart with a line-loss chart. Most wire sizing charts you see deal with acceptable line loss (2% usually) when recommending wire size for a given current flow. This is affected by wire length, as the longer the piece of wire, the more resistance it will display, no matter what gauge it is. But when sizing fuses, wire specifically has a maximum current flow it is rated for that is NOT affected by length, only the amount of copper in the wire cross-section (basically).