Low ohm amp to sub wiring

[BCONNELLY 10+ year member]

I need help, I've been installing car audio systems in my personal ride for ten years, but I still consider myself a rookie. All my experience has revolved around basic low end systems. Amp/sub systems, running of 4 ohm @ less than 300 watts. I'm very intrested in moving to the next level, but I'm scared of making a coastly mistake.

Here's a little history. I have been running my 1, Eclipse 12" 8712.4(4 ohm SVC) sub (in a band-pass enclosure) off a Fultron 150watt X2 Mosfet 16-0150M amp. I have 4 ga. power wire, with an Eclipse head unit that has 4 volt outputs. I've had this set-up almost 3 yrs. Recently, I fried the voice coil. What do you think I did, was it my hook-up, or did I just push it a little too far?

Now. I am ready to move up to the next level. But, I want to do it right this time. I have now purchased an Eclipse 9102, 4 ohm DVC (I'm just waiting for it to arrive fedex). I know now to go sealed enclosure (someone told me 0.8 cu. ft.).

What do you think?

I was told my amp is too small, I'll blow the sub (what do they mean?)

Second, what do you suggest for an amp(HCCA, Class D...etc.), how should I wire it (4ohm stereo, or 2 ohm mono)?

HELP !!!

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[BCONNELLY 10+ year member]

Anyone? I need help!!

 

[Shyne151 10+ year member]

You aren't going to blow the sub with too small of an amp. Class D would prolly be your best bet, depending on how much power you need.

 

[BCONNELLY 10+ year member]

I was looking at some old school Orion, Zepco & PPI amps, do you have an opinion?

 

[theCybe 5,000+ posts]

Gains. Gains. Gains. Gains. Gains.. Gains.. . .

 

[johnecon2001 5,000+ posts]

Recently, I fried the voice coil. What do you think I did, was it my hook-up, or did I just push it a little too far?

It just wore out, or you weren't giving it enough power, and you were peaking the amp and sending voltage spikes into the sub.. which is no good.

Now. I am ready to move up to the next level. But, I want to do it right this time. I have now purchased an Eclipse 9102, 4 ohm DVC (I'm just waiting for it to arrive fedex). I know now to go sealed enclosure (someone told me 0.8 cu. ft.). What do you think? I was told my amp is too small, I'll blow the sub (what do they mean?)

Same problem as before man, except now you can't run the sub at 4 ohms any more. Because you bought a dual voice coil sub with 4 ohms on each coil, your only option is to run the sub at 2 ohms or at 8 ohms. Which I doubt the amp can handle.

Second, what do you suggest for an amp(HCCA, Class D...etc.), how should I wire it (4ohm stereo, or 2 ohm mono)? HELP !!!

You should purchase an amp that is stable at 2 ohms and gives an RMS power of at least 800watts. Your sub wants to use 750watts rms. A class D would be a great choice.

 

[johnecon2001 5,000+ posts]

You aren't going to blow the sub with too small of an amp. Class D would prolly be your best bet, depending on how much power you need.

not true, if he clips the amp... it will send spikes of voltage down the lines which in turn will roast those VC's.

 

[BCONNELLY 10+ year member]

I've been looking at some old school amps Orion HCCA, Zepco & PPI, What do you think Johnecon

 

[johnecon2001 5,000+ posts]

Those are all great choices! Although I tend to favor more of the exotic amps myself (zapco, arc, tru, DLS, brax, US, etc.). If you can pick up a Zapco for around 350-450, then you got a great deal. The amps are extremely underrated. You will not be disapointed with them. The same goes for all of the others too.

Try these

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=18796&item=5746758906&rd=1

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=18796&item=5747102217&rd=1

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