2ohm load amp

[jj1479 4]

Was wondering if you guys are going to make a amp in the future thats full power (so to speak) at 2ohm instead of 1ohm? Instead of just linking 2 together

Edited March 8, 2011 by jj1479

[CrazyKenKid 64]

if they did that would be awesome!!

[Kanaworm$ 292]

What kind of "full power" are you looking for at 2 ohm?

[Shogen 325]

I need full power at 4 ohms!!!

And by full power I mean at least 1000w at 4 ohm load...???

[Ohjay 116]

SAZ 4500D should do about 1000@4, lotta cash for 1k though, why do you need 1k@4ohms?

[S.DeYoung 968]

I need full power at 4 ohms!!!

And by full power I mean at least 1000w at 4 ohm load...???

I assume you mean for your Icon? Do you have d2 coils? A lot easier and cheaper to find an amp putting out 1000wrms at 1 ohm instead of at 4 ohm.

[Shogen 325]

I need full power at 4 ohms!!!

And by full power I mean at least 1000w at 4 ohm load...???

I assume you mean for your Icon? Do you have d2 coils? A lot easier and cheaper to find an amp putting out 1000wrms at 1 ohm instead of at 4 ohm.

I know... wishful thinking....

[Shogen 325]

I will most likely pick up a SAZ-1500D when I get my monies in order and I'm not looking for a place to live....

[antonmiller 8]

should be able to get rated at 2 ohm(of course if you rise is to 2ohms not nominally), and i saw the other day 1k at 8 ohms off a 3500

[jj1479 4]

What kind of "full power" are you looking for at 2 ohm?

Around the same output as my crossfire vr4000d. Now theirs nothing wrong with my vr but i would like to try a sundown amp.

[sundownz 197]

It is something I have considered but haven't seen a huge market for at this time since we offer multiple coil configurations people can get the power they need @ 1 ohm.

[Shogen 325]

My curiousity is about actual Sundown ratings. Spec from your official site claim the rated output at 14.4v ... But all I keep reading are ratings higher than the specs and at 12-13v ... Reason I am asking is because I seem to hear alot of mix up about running amplifiers at 1 ohm and their current draw. I do understand the amps generates more heat and becomes somewhat "less" efficient at lower impedance.. Does it cause more strain on my vehicle's electrical though?

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

[ibanender 2]

My curiousity is about actual Sundown ratings. Spec from your official site claim the rated output at 14.4v ... But all I keep reading are ratings higher than the specs and at 12-13v ... Reason I am asking is because I seem to hear alot of mix up about running amplifiers at 1 ohm and their current draw. I do understand the amps generates more heat and becomes somewhat "less" efficient at lower impedance.. Does it cause more strain on my vehicle's electrical though?

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

Assuming they were similar technologies, the 4 ohm would probably draw less current. However, in the mobile market, you aren't going to find a wide selection of 4 ohm class D, so you'd probably be comparing a Class A/B vs D which isn't a valid comparison.

[Aaron Clinton 2,372]

I need full power at 4 ohms!!!

And by full power I mean at least 1000w at 4 ohm load...???

I assume you mean for your Icon? Do you have d2 coils? A lot easier and cheaper to find an amp putting out 1000wrms at 1 ohm instead of at 4 ohm.

I know... wishful thinking....

Try to find a used Kronos.

[Shogen 325]

My curiousity is about actual Sundown ratings. Spec from your official site claim the rated output at 14.4v ... But all I keep reading are ratings higher than the specs and at 12-13v ... Reason I am asking is because I seem to hear alot of mix up about running amplifiers at 1 ohm and their current draw. I do understand the amps generates more heat and becomes somewhat "less" efficient at lower impedance.. Does it cause more strain on my vehicle's electrical though?

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

Assuming they were similar technologies, the 4 ohm would probably draw less current. However, in the mobile market, you aren't going to find a wide selection of 4 ohm class D, so you'd probably be comparing a Class A/B vs D which isn't a valid comparison.

right, I'm not sure what you mean by saying there isn't a wide selection of 4 ohm class D amplifiers? If you mean that can output 1000w @ 4 ohm then you'd be correct, there isn't alot out there. But I was throwing a number out... I can easily find an amplifier that can output say 800w @ 4 ohm and one that outputs 800w @ 1 ohm. So the 4 ohm amplifier would draw less current from my electrical?

[Shogen 325]

I need full power at 4 ohms!!!

And by full power I mean at least 1000w at 4 ohm load...???

I assume you mean for your Icon? Do you have d2 coils? A lot easier and cheaper to find an amp putting out 1000wrms at 1 ohm instead of at 4 ohm.

I know... wishful thinking....

Try to find a used Kronos.

Hmm... You and I have discussed the Kronos before... It does has a SSF correct? looks like it is from 11-48hz ... That's good as I have moved to a ported enclosure... But the hook up for it looks insane.... I spoke with I think Chris from ZED audio and there is a specific way to hook up that amplifier to use it for a subwoofer... Basically I have to split my subwoofer output to all 4 inputs on the amplifier which he mentioned might "dirty" up the signal, to what extent I'm not sure... But hearing the word dirty and talking about output didn't sound good... I think because you're splitting the output connections the pre amp voltage then drops by a 1/2 to each input?

And I'm not totally against running an amplifier at 1 ohm if it is stable to do so... Which any Sundown Audio I've been interested in is capable of... Just don't want to strain my stock electrical too much during this summer cuz I like turning the volume knob until it stops....

[ibanender 2]

My curiousity is about actual Sundown ratings. Spec from your official site claim the rated output at 14.4v ... But all I keep reading are ratings higher than the specs and at 12-13v ... Reason I am asking is because I seem to hear alot of mix up about running amplifiers at 1 ohm and their current draw. I do understand the amps generates more heat and becomes somewhat "less" efficient at lower impedance.. Does it cause more strain on my vehicle's electrical though?

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

Assuming they were similar technologies, the 4 ohm would probably draw less current. However, in the mobile market, you aren't going to find a wide selection of 4 ohm class D, so you'd probably be comparing a Class A/B vs D which isn't a valid comparison.

right, I'm not sure what you mean by saying there isn't a wide selection of 4 ohm class D amplifiers? If you mean that can output 1000w @ 4 ohm then you'd be correct, there isn't alot out there. But I was throwing a number out... I can easily find an amplifier that can output say 800w @ 4 ohm and one that outputs 800w @ 1 ohm. So the 4 ohm amplifier would draw less current from my electrical?

I can show ya 800 watts @ 4 ohms all day long too, but is it class D? I can't recall too many 4 ohm class D amps of any wattage. For what I can come up with, what percentage of amps is that as a whole?

But to answer your question, assuming the were the same power technologies, there is a very good possibility the 4 ohm would draw less current. Again, that isn't 100% because there are Class A/B's that are more efficient than some Class D's also.

[Sir-Lancelot 216]

Since we are putting our wish lists out here, 2ch 500w x 2 @ 4ohm.

[Impious 1,476]

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

You are asking the wrong question.

What you need to focus on when asking this question is amplifier efficiency rather than just the impedance of the load.

If both amplifiers were the same efficiency into those respective impedance loads, there would be zero difference in current draw.

What ibanender is likely eluding to is that most class D amplifiers will be more efficient at 4ohm than 1ohm, so the 4ohm impedance would likely result in less current draw. But the reason is because of the difference in efficiency, not impedance. It just so happens that efficiency is generally correlated with the impedance of the load the amplifier is driving. The same difference in current draw could occur between two different amplifiers of the same power driving the same load simply because of a difference in efficiency between the two amplifiers.

So, moral of the story.....current draw is directly related to efficiency, not load. Efficiency is generally correlated with the load (lower the load, lower the efficiency). But efficiency of different designs and amplifiers will be different, so driving a higher impedance load does not guaranty a higher efficiency when comparing two different amplifiers.

[StreetLegal 119]

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

You are asking the wrong question.

What you need to focus on when asking this question is amplifier efficiency rather than just the impedance of the load.

If both amplifiers were the same efficiency into those respective impedance loads, there would be zero difference in current draw.

What ibanender is likely eluding to is that most class D amplifiers will be more efficient at 4ohm than 1ohm, so the 4ohm impedance would likely result in less current draw. But the reason is because of the difference in efficiency, not impedance. It just so happens that efficiency is generally correlated with the impedance of the load the amplifier is driving. The same difference in current draw could occur between two different amplifiers of the same power driving the same load simply because of a difference in efficiency between the two amplifiers.

So, moral of the story.....current draw is directly related to efficiency, not load. Efficiency is generally correlated with the load (lower the load, lower the efficiency). But efficiency of different designs and amplifiers will be different, so driving a higher impedance load does not guaranty a higher efficiency when comparing two different amplifiers.

excellent !!!

[Shogen 325]

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

You are asking the wrong question.

What you need to focus on when asking this question is amplifier efficiency rather than just the impedance of the load.

If both amplifiers were the same efficiency into those respective impedance loads, there would be zero difference in current draw.

What ibanender is likely eluding to is that most class D amplifiers will be more efficient at 4ohm than 1ohm, so the 4ohm impedance would likely result in less current draw. But the reason is because of the difference in efficiency, not impedance. It just so happens that efficiency is generally correlated with the impedance of the load the amplifier is driving. The same difference in current draw could occur between two different amplifiers of the same power driving the same load simply because of a difference in efficiency between the two amplifiers.

So, moral of the story.....current draw is directly related to efficiency, not load. Efficiency is generally correlated with the load (lower the load, lower the efficiency). But efficiency of different designs and amplifiers will be different, so driving a higher impedance load does not guaranty a higher efficiency when comparing two different amplifiers.

Thanks.... So moral of the story is I am looking to run 4 ohm still.... And depending on efficiency maybe I'll think about 1 ohm.

[Notorious97200 339]

Do you think you will be able to hear something different from your sub from playing at 1 Ohm or at 4 Ohms ?

I am not so sure about it.

I was afraid to play at 1 ohm, but from my saz 1000 to my saz 1500, I had absolutely no problems. I've just upgraded the grounds on the front battery and on the engine block later.

I'm planning to get a 2500 watts amp as soon as I can for my system, and still at 1 Ohm !!!

[ibanender 2]

Since we are putting our wish lists out here, 2ch 500w x 2 @ 4ohm.

A SAX-200.4 will definitely do 500x2 @ 4 ohms

Let's say for example I get 2 amplifiers, one is rated a 1000w @ 4 ohm load and the other is rated 1000w @ 1 ohm. Would one amplifier use more current than the other theoretically? Or is 1000w the same expense no matter the impedance?? I know some other conditions affect this answer but for argument sake, lets assume they are exactly the same except for output at different loads...

You are asking the wrong question.

What you need to focus on when asking this question is amplifier efficiency rather than just the impedance of the load.

If both amplifiers were the same efficiency into those respective impedance loads, there would be zero difference in current draw.

What ibanender is likely eluding to is that most class D amplifiers will be more efficient at 4ohm than 1ohm, so the 4ohm impedance would likely result in less current draw. But the reason is because of the difference in efficiency, not impedance. It just so happens that efficiency is generally correlated with the impedance of the load the amplifier is driving. The same difference in current draw could occur between two different amplifiers of the same power driving the same load simply because of a difference in efficiency between the two amplifiers.

So, moral of the story.....current draw is directly related to efficiency, not load. Efficiency is generally correlated with the load (lower the load, lower the efficiency). But efficiency of different designs and amplifiers will be different, so driving a higher impedance load does not guaranty a higher efficiency when comparing two different amplifiers.

Yes, if both amps had the same efficiency at their respective impedance, they would have the same draw. Class D amps ARE more efficient than Class A/B. However, a 1 ohm Class D amp is more efficient at 1 ohm than 4 ohms. A Class A/B rated for 4 ohms is more efficient at 4 ohms than 1 ohm, and a Class A/B rated for 1 ohm is more efficient at 4 ohms. It's how the technology works is what I'm getting at.

You summary is pretty spot on though, the efficiency of a load is irrelevant, the efficiency of the amps design will dictate it's efficiency at a given load.

[Sir-Lancelot 216]

Since we are putting our wish lists out here, 2ch 500w x 2 @ 4ohm.

A SAX-200.4 will definitely do 500x2 @ 4 ohms

It's my wish list and I want a 2ch amp not a 4ch bridged. lol I got that now!

[jj1479 4]

It is something I have considered but haven't seen a huge market for at this time since we offer multiple coil configurations people can get the power they need @ 1 ohm.

My problem is i have 2 subs with quad 1 ohm coils. So is it more exspensive to make one run at 2 ohm.