Most Efficient 2000w Amplifiers on the Market?

[squeak9798 5,000+ posts]

nope, because usually the efficiency is lower at higher ohm loads.......NOT the efficiency.

Wrong.

Efficiency generally decreases as impedance decreases. Most efficient operation will typically be at higher impedances for a given amplifier.

why doe you see specs that say efficiency at 1/3 power like 50% but at FULL POWER the efficiency gets considerably higher.

Class A/B amps will have much lower efficiency @ 1/3 power than at full power because of how they operate.

Class D's typically have 1/3 efficiency pretty close to that of full power output....usually within 10% or so.

But as impedance decreases, so does efficiency.

The 1/3 power vs full power relationship has nothing to do with the impedance vs efficiency relationship.

 

[squeak9798 5,000+ posts]

my understanding of damping factor is that it decreases as well...

Damping factor will be higher at higher impedances as it's simply the relationship between the load impedance (the speaker) and the amplifier's output resistance. So as the load impedance decreases, so will the DF.

But DF is a generally meaningless spec nowadays, so I wouldn't worry too much about it.

 

[xtremebassjunky 10+ year member]

Damping factor will be higher at higher impedances as it's simply the relationship between the load impedance (the speaker) and the amplifier's output resistance. So as the load impedance decreases, so will the DF.

But DF is a generally meaningless spec nowadays, so I wouldn't worry too much about it.

yeah i don't pay much attention to DF.

//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[lostdaytomorrow 10+ year member]

I'm very happy with my 2500.1 so I'm sure you would be too.

I'm not sure what you're referring to with 2500.1? Which brand? They all pretty much sound the same to me unless I have the brand name in front. Thanks.

 

[jfsh90 10+ year member]

Says in his sig

Kicker zx2500.1

 

[lostdaytomorrow 10+ year member]

zapco 9.0

Besides the fact these are insanely priced, I don't seem to be able to find rating @ 1 ohm mono?

 

[lostdaytomorrow 10+ year member]

Says in his sigKicker zx2500.1

Oh, roger that. The main reason I'm not comfortable with the kicker 2500. 1 is that they don't rate it at 1 ohm, and I'll be running it at .7 ohms before imp. rise...

 

[lostdaytomorrow 10+ year member]

I just looked up the info. on the Exile 2400.1 and it looks like a mean amp. Efficiency of 85% according to the manual on the site. Whereabout might I find a good pricing on these Exile's?

 

[lostdaytomorrow 10+ year member]

I was researching the Cadence ZRS10 and noticed that a bunch of guys were saying that it's been out phased for the Daytona DCA2500.1 and that Cadence even says the Daytona is a better choice then the ZRS10? What's up with this? Does anyone know?

 

[brchd]

my understanding of damping factor is that it decreases as well...

thats what I said. its higher at 4 ohms, halves every time you halve the resistance...ie

daming factor @ 4 ohms>500

@2 ohms >250

@1 ohm >125

you can take that to the bank.

 

[Decado2 10+ year member]

I'll look into this one and the Kicker 2500, thanks for the suggestions so far guys.
Any comments on the efficiency of the DD M2 or M3? Which line of Zapco is considered the most efficient?

I'd go with the Kicker, either a kx or a zx 2500.1 . I had a Nine.1 and upgraded to the Kx 2500.1 , at 4 ohms, I get NO dimming from the Kx, at 2 ohms I get less dimming then I did from the Nine.1 at 1 ohm.

The 9.1 sounded louder at 1 ohm than the kx at 4 ohms , but there is no dimming for the "same" amount of power.

Take it from me, I had a 9.1 and now have a kx 2500.1 //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Ignatowski 5,000+ posts]

the words efficient and 2000 watt amp do not work well together

 

[Decado2 10+ year member]

the words efficient and 2000 watt amp do not work well together

LOL

 

[lostdaytomorrow 10+ year member]

I'd go with the Kicker, either a kx or a zx 2500.1 . I had a Nine.1 and upgraded to the Kx 2500.1 , at 4 ohms, I get NO dimming from the Kx, at 2 ohms I get less dimming then I did from the Nine.1 at 1 ohm.
The 9.1 sounded louder at 1 ohm than the kx at 4 ohms , but there is no dimming for the "same" amount of power.

Take it from me, I had a 9.1 and now have a kx 2500.1 //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

So what was the sound difference between the 2 ohms on the kicker and 1 ohm on the Nine.1? I will only be able to run the 2500.1 at 1 ohm or 4 ohms, and 4 ohms seems a bit silly for such a beastly amp when I can get more power at 1 ohm.

 

[BobbyDD 10+ year member]

I have two Dual 1 SSD12's, so yeah it's .7 or 2.8 for me... I was planning on just getting another Nine.1 and strapping them but I realized they are just too inefficient so the led me on the journey of finding and efficient 2k watt amplifier to take the place of the two Nine.1's I was planning on.

I'm kinda new at this but wouldn't your options be .25, 1, or 4 ohms?