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I am thinking of getting an old 40x2 Rockford Fosgate Punch Amp. Rated at 40x2 at 4 Ohm. So would it be better to go with a single or Dual Voice Coil? 8ohm or 4 Ohm?
 

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if u have an aftermarket headunit it should be putting like 45-50 watts to each speaker. i wouldnt waste my time putting in an amp for the same results.
 

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if u have an aftermarket headunit it should be putting like 45-50 watts to each speaker. i wouldnt waste my time putting in an amp for the same results.
Are you sure you know which amp I am talking about? They were rated very low and were more than capable of pushing a nice set of subs. I had a 100ix pushing to Kicker 12's that absolutely rocked. I would love to find a 60ix or a 100ix, but they get really pricey. And a head unit that says is 40-50 watts is peak not RMS. An amp will run RMS at the same load. That is why they don't make amps the size of cell phones.
 

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i know about rms and shit.

idk wat amp ur talking about cuz idk rockford. i do jl and alpine only.

my 3 12w0 r rated at 125 rms each, i have 400 going to all 3. they could handle 1000 watts easy. very underrated subs.
 

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i know about rms and shit.

idk wat amp ur talking about cuz idk rockford. i do jl and alpine only.

my 3 12w0 r rated at 125 rms each, i have 400 going to all 3. they could handle 1000 watts easy. very underrated subs.


I love JL, but their W0 series are not meant to handle to much power. I would love to see you put a 1000 watts and run it for more than a few minutes.
 

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theres 3 of them.
Yes I know, I got that when you said you had 3 12's in your other post. I would still like to see a 1000 watts RMS go to those speakers, not peak either. And have them not blow after a few minutes.
 

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alpine 1000.1 pdx. 1000 rms.tried it already. hits hardddddd
 

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alpine 1000.1 pdx. 1000 rms.tried it already. hits hardddddd
Well if you had the gain up all the way I am impressed. Hard to believe cause I have blown some JL's with less power. I still run the damn things though cause they sound really clean.
 

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I am thinking of getting an old 40x2 Rockford Fosgate Punch Amp. Rated at 40x2 at 4 Ohm. So would it be better to go with a single or Dual Voice Coil? 8ohm or 4 Ohm?
What does the 40Wx2 @ 4ohm have to do with running a subwoofer that you are probably going to bridge on the amp. You need to know the all the specs of the amp and the specs of the sub and match them. You risk more damage underpowering subs than over powering them.

Looking up the specs, the 60ix is actually rated at 260W RMS bridged on 4ohm load @ 14.4 V and 120W mono 4ohm @ 12.6V.

The 100ix is 420W bridged 4ohms @ 14.4V and 200W bridged 4ohm @ 12.6V
 

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Yea its a 40ix, not sure why I put the x2.

Mono into 4 ohm is 160 watts at 14.4 and 80 at 12.6v

So would running mono dicatate what style sub I should use? That is really what I want to figure out.
 

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What does the 40Wx2 @ 4ohm have to do with running a subwoofer that you are probably going to bridge on the amp. You need to know the all the specs of the amp and the specs of the sub and match them. You risk more damage underpowering subs than over powering them.

Looking up the specs, the 60ix is actually rated at 260W RMS bridged on 4ohm load @ 14.4 V and 120W mono 4ohm @ 12.6V.

The 100ix is 420W bridged 4ohms @ 14.4V and 200W bridged 4ohm @ 12.6V


there ya go.
 

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there ya go.
True, maybe was underpowering them. haha. I doubt it but maybe. I stepped up to more powerful Kickers and they held up fine versus the old W1 series subs.
 

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Yea its a 40ix, not sure why I put the x2.

Mono into 4 ohm is 160 watts at 14.4 and 80 at 12.6v

So would running mono dicatate what style sub I should use? That is really what I want to figure out.


you have to see the amp is example: 4 ohms bridged at 140 watts. or 2 ohms per channel at 70 watts. really u have to see how many ohms ur sub is and the rms rating and then check the amp.

say ur rms is 150 at 4 ohms, then bridge it. ya know?
 

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Discussion Starter #16
you have to see the amp is example: 4 ohms bridged at 140 watts. or 2 ohms per channel at 70 watts. really u have to see how many ohms ur sub is and the rms rating and then check the amp.

say ur rms is 150 at 4 ohms, then bridge it. ya know?
Well I dont have anything yet. So everything is still a variable. Lets say I got the 60ix using the specs above. What ohm speaker should I buy? Dual or single voice coil?
 

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Discussion Starter #18
get a alpine pdx 1.1000 and a 12" type x. lol

Right, I want to spend about 300 bucks. Everything is already wired up as I am removing the thunderform. Just need to make a new box and put the shit in.
 

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Discussion Starter #20
so you have the amp and need a sub or what?
No, I have empty space. Don't have an amp. Looking to pick up one of those old Punch amps. The thunderform I am selling has the amp built in.
 
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