Mono Block amp question

[UrbanSounds 10+ year member]

I'm kinda of confused on how to get the most out of my amp.

I'll be installing 3 Type R 12s using a 2600 watt hifonics amp.

The amp is rated at 2600 watts rms at 1ohm. Now if I wire the subs in parallel ill get a final ohm of .5, will the amp still handle them.

Also another question I have is on the hifonics on the speaker terminal it has a ++-- and if you want a 1 ohm load you connect 1 speaker to each terminal and internally it will bridge it for you, but how am I suppose to do that with three subs.

Any help will be great and please correct me if I have made a mistake some where or any suggestions you may have

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[n2audio 5,000+ posts]

There's nothing being bridged. The speaker outputs are parallel at the amp so if you were to connect 2 ohms to each speaker output the amp would see 1 ohm.

You can't get 1/2 ohm with 3 type R's.

3 dvc 2's would give you 1/3 ohm, 1.3 ohms, or 12 ohms

3 dvc 4's would give you 2/3 ohm, 2.67 ohms, or 24 ohms.

 

[UrbanSounds 10+ year member]

Okay, so do I hook up two speakers at 1ohm on one channel and the other speaker at 2ohm on the other channel.

 

[bonesninja 5,000+ posts]

no

 

[UrbanSounds 10+ year member]

Why wont it give me a .5 ohm load. If they are wired in parallel.

Each sub would be 2 ohm + 2 ohm + 2 ohm that would make .5 or 1.5 wouldnt it.

I would hook up all the + and than all the -.

 

[bonesninja 5,000+ posts]

Why wont it give me a .5 ohm load. If they are wired in parallel. Each sub would be 2 ohm + 2 ohm + 2 ohm that would make .5 or 1.5 wouldnt it.

I would hook up all the + and than all the -.

no....n2 already told you what it would be

 

[SicAudio 5,000+ posts]

this is the only way to safely wire 3 dvc 4 ohm subs to that amp anything else will cook it.

the amp is 1 ohm stable not .50 ohm stable.

at 2.67 ohms you will get about 15-1600 wats rms which is plenty for those subs.

 

[SicAudio 5,000+ posts]

your best bet is to get 3 dvc 2 ohm subs and wire it like this :

 

[UrbanSounds 10+ year member]

Ok last question. On the hifonics on the terminal its ++-- do I hook up the postive from the subs to the first + and the negative from the subs to the last - on the amp.

cause i was told that i couldnt do that on the hifonics. And the last time I wired two l7 15 to that amp at one ohm it fried the amp. but than when I hooked up one 15 to each channel at 2 ohm it worked fine.

 

[SicAudio 5,000+ posts]

Okay, so do I hook up two speakers at 1ohm on one channel and the other speaker at 2ohm on the other channel.

mono means 1 so you only have 1 channel dude they use multiple terminals to make it easier to hook up multiple subs. thats it.

you should probably look into seeing if someone that knows what they are doing can at least double check what you do to be safe.

 

[Redlineaudio 10+ year member]

UH

3 DVC 4's = .75 not 2/3's

Give it a try, it can only hurt once.

 

[SicAudio 5,000+ posts]

Ok last question. On the hifonics on the terminal its ++-- do I hook up the postive from the subs to the first + and the negative from the subs to the last - on the amp.
cause i was told that i couldnt do that on the hifonics. And the last time I wired two l7 15 to that amp at one ohm it fried the amp. but than when I hooked up one 15 to each channel at 2 ohm it worked fine.

doesn't matter what positive or negative you use, they are connected to each other inside the amp. whoever told you that is an idiot.

as far as the sub blowing the amp, I find that pretty impossible, but why would you connect a 750 watt sub up at 2600 watts? even at 2 ohms that amp is way too much for an L7 sub, the biggest we use for the L7's is the 2000 watt brutus and they have never "fried" an amp.

you really need to educate yourself before you try to do this on your own. no offense.

and just so you know that amp will fry unless you have a very beefy electrical system. it requires 250 amps of current all by itself. if the amp blew before at 1 ohm it is because it was dropping voltage extremely low.

2-4 hc 600 batteries ( or equivilent ) and at least a 200 amp alternator.

that amp is not for the uneducated at all. it also requires at least o guage wire and an external 250 amp fuse as well. it has no internal fuses.

 

[SicAudio 5,000+ posts]

UH
3 DVC 4's = .75 not 2/3's

Give it a try, it can only hurt once.

where did you learn math at? if 3 - 4 ohm loads is 1.34 then 6 4 ohm loads = .67 or as he said 2/3 ohm.

 

[Redlineaudio 10+ year member]

where did you learn math at? if 3 - 4 ohm loads is 1.34 then 6 4 ohm loads = .67 or as he said 2/3 ohm.

3 DVC 4's

Each set of 4 goes to 2

3 2's as I learned it

is 1 divided by 2 or .5 + .5 + .5 = 1.5 take the inverse = .75 for your final load.

But I am old and could be wrong.

 

[SicAudio 5,000+ posts]

3 DVC 4's

Each set of 4 goes to 2

3 2's as I learned it

is 1 divided by 2 or .5 + .5 + .5 = 1.5 take the inverse = .75 for your final load.

But I am old and could be wrong.

so for 2 sets of 3 4 ohm coils you divide by 2 as you show in your post but the math is wrong //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif