bc2000d fuse capability.......

[tbear55 1]

I am wondering if the bc2000 will allow the use of 175 amp fuse. I will be burning it at a half ohm. So all u guys that have had experience with this amp I would appreciate ur thoughts.

[jcarter1885 995]

You dont even have to use a fuse that high, the fuse is there to protect the wire and the amp.

Edited November 13, 2012 by jay-cee

[shizzzon 461]

Why are you limited to 175?

IF this is for burps in MECA, then, lol.. yea 175 is fine if you know how to control the current draw.

We can burp 3,500w amps @1ohm on single 80a fuse if that's the case.

If it's for daily.. then that makes no sense why you'd be limited to 175 so explain if necessary.

[tbear55 1]

Yea its for meca. I've had luck b4 burning 4k off 200 amp. Need more info ok how you can burp 3500 off of 80 amp. I want to be competitive and if you can tell me how to use my amp draw correctly I'll look at getting the bc3500 instead. Obviously I'll run it on a higher rated fuse for daily, but you've peaked my interest on this. Teach me how!! Always interested in learning new things. This will be the first year I've had to worry about fuse ratings so please help me!!!

[ricksi30 923]

Yes 175 should be fine for burps.

[tbear55 1]

Thanks

[shizzzon 461]

Assuming you know your frequency and you are using a tone(easier), this is how-

Play your tone at a relatively low volume level.

Get a DMM out and start lowering the LPF and raising the Subsonic Filter to a point to where they do not cause the AC voltage to drop. You want the narrowest playable range so only your burp note is not filtered out.

Make sure you are wired to 1 ohm when doing this.

Next, start the tone on low volume.

Then start turning it up relatively fast after the meter has started measuring at least 2-5 seconds into the run.

You want to go from low volume to max by rolling in about 0.5-0.7seconds.

gain knob, PAC LC-1, etc.. they all will let you do this.

Once at max volume, just keep it there until it blows.

If you have a meter, you can also test just burping at max volume without rolling to see what's easier.

also- if you have any other amp in the car that is not being used to burp, pull it's fuses.

If using a custom fuse block with the ability to torque the bolts holding the fuses down REAL tight, you can get a great deal of current through it!

I used to run a Stinger MIDI 4way block off 1076A of current draw on 4 80A fuses.

I'd blow them in about 1.2seconds.

I then built custom block supporting 2,250A continuous per NEC standard.

I connected 4 80A fuses to it torqued down tight and my score went up over 1 db(because fusing was popping too early before) and was able to obtain same score with these fuses vs my daily fuses(LARGE ratings).

My run also got me a solid 2.5seconds straight before they would pop too.

Also, what city are you in since i'm in KY too?

[tbear55 1]

Morehead. I appreciate that run down. That explains a lot to me. I will be trying that. BTW what city you from.

[shizzzon 461]

Louisville.

Be expecting me at some Horsecave events soon.. Not like REAL soon but hopefully right after christmas if i'm lucky.

[tbear55 1]

That's when I plan on starting. Definitely looking forward to seeing you there. What class you in?

[shizzzon 461]

i dont know...

I think because of how aggressive my build is, i think X2 but still daily driver.

[tbear55 1]

Awesome can't wait to see it. I'm struggling between s3 or s4. Depends on which amp I Gp with.

[ricksi30 923]

You will be much better off in s3. You would be up against WAY more power in s4.

[tbear55 1]

That's what I afraid of. Thanks

[djjdnap 78]

i was just gonna say 2500w/14v=178a

on a slow blow u would be fine..

which makes me think are their different ANL types ?

[tbear55 1]

R the mode's better than a regular anl. After much debate and learning quite a bit. I guess I'm just going to buy a bunch of different fuses and see what I come up with. Pretty sure I can go with the bigger amp and use a smaller fuse for just a few second burp. Then run a different fuse in drive bye.

[shizzzon 461]

you are only allowed to use marketed fuses and only certain types.

Slow blow fuses are prohibited and only come in fuse standards that are also not allowed in Meca.

If you want to "exploit" your fuses to make them perform better than rated without cheating(invisible fusing), you can purchase cryogenically frozen fuses.

I must warn you though, even if they do pass MECA inspection as most are AGC fusing so you would need to purchase multiple fuses because CF fuses only come in around 10-15A per fuse, they cost around $50 a fuse!

Or you can figure out how to do it yourself with liquid nitrogen. Don't kill yourself!

[tbear55 1]

What I meant was MIDI fuse and the bigger anl. I don't believe in cheating the rules. If I can't do it legal I don't want to do it at all. I learned10 years ago of the tricks people played when I started in as1. Couldn't stand it then cart stand it now. I didn't even know about cryo fuses! I've been out of the picture for a few years so I'm behind times in terms of competing. What amp would you recommend for two 12"fi ssd d2 to be competitive in s3. I'm timed at 45 hz and have good electrical.