Stetsom 2K6 vs. SAZ-1500's strapped test

[dtbrown 10+ year member]

What about using a "special" fuse in the amp that seems to blow normal 200 amp fuses? So it can win best amp in the 200a category? Sounds like cheating to me. You have no complaint or issue about that at all?
If they're willing to lie and cheat to make their products seem better than they are, what else are they willing to lie and cheat for? That's what I'd like to know...

You can't be remotely serious? Your talking about fuses here. There is no such thing as a "normal" 200 amp fuse. Fuse manufacturers of one 200a fuse won't be the sames as another manufacturers 200a fuse. When I competed in meca with the fuse rating we used to use Maxi fuses because a specific companies 40amp maxi fuse did what a 150amp ANL fuse couldn't. The fuse is only there for one purpose. To protect the amp from being grounded out. Who cares if it's rated at 500amps. As long as it pops and does it's job if need be.

My point is, a fuse rating has no weight on a companies integrity. Now if the components the product was made out of where different that what was specified then you'd have a point. And don't get me wrong, I've always thought the 7kd should have been labeled 5kd but that doesn't mean the product doesn't do a good job.

 

[tommyk90 5,000+ posts]

You can't be remotely serious? Your talking about fuses here. There is no such thing as a "normal" 200 amp fuse. Fuse manufacturers of one 200a fuse won't be the sames as another manufacturers 200a fuse. When I competed in meca with the fuse rating we used to use Maxi fuses because a specific companies 40amp maxi fuse did what a 150amp ANL fuse couldn't. The fuse is only there for one purpose. To protect the amp from being grounded out. Who cares if it's rated at 500amps. As long as it pops and does it's job if need be.
My point is, a fuse rating has no weight on a companies integrity. Now if the components the product was made out of where different that what was specified then you'd have a point. And don't get me wrong, I've always thought the 7kd should have been labeled 5kd but that doesn't mean the product doesn't do a good job.

What he means by that is that stetsom purposely used a strong *** 200 amp fuse so the 2K6D could run in a lower NSPL class. Pop another manufacturers 200 amp fuse in there and it won't hold.

Is it a bit shady? Sure. But stetsom wouldn't be the first company to stretch the rules when it comes to rating amps.

FYI, I still have about 150 MAXI fuses lying around. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[xtremebassjunky 10+ year member]

What about using a "special" fuse in the amp that seems to blow normal 200 amp fuses? So it can win best amp in the 200a category? Sounds like cheating to me. You have no complaint or issue about that at all?
If they're willing to lie and cheat to make their products seem better than they are, what else are they willing to lie and cheat for? That's what I'd like to know...

I wasn't even talkin about the fuse in that....

Are you accusing me of lying because I have had no complaint with the 2k6? *besides the ssf... which I mentioned...even in that quote

USACi, AB... the perfect example of lil cheater amps.

regardless... i get the feeling you have no idea what you are talking about.

 

[xtremebassjunky 10+ year member]

What he means by that is that stetsom purposely used a strong *** 200 amp fuse so the 2K6D could run in a lower NSPL class. Pop another manufacturers 200 amp fuse in there and it won't hold.
Is it a bit shady? Sure. But stetsom wouldn't be the first company to stretch the rules when it comes to rating amps.

FYI, I still have about 150 MAXI fuses lying around. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

the fuse may be done to drop it a class, I don't know.

No, they wouldn't.

and WOW lol 150 MAXI's eh?

lol

 

[dtbrown 10+ year member]

What he means by that is that stetsom purposely used a strong *** 200 amp fuse so the 2K6D could run in a lower NSPL class. Pop another manufacturers 200 amp fuse in there and it won't hold.
Is it a bit shady? Sure. But stetsom wouldn't be the first company to stretch the rules when it comes to rating amps.

FYI, I still have about 150 MAXI fuses lying around. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

I see now. But in NSPL couldn't anyone just change the fuse? Don't know the rules. It would be hard to tell what fuse came from the manufacture. What a hard rule to regulate.

And I have a bunch of MAXi's sitting around too. lol

 

[SeanDub 10+ year member]

Well ****, let me just jump in real quick here.

I am running a Stetsom 2k6d. I have been since December, and it is on my DD 9515e, which is Dual 1. I have chosen to run it since I got it at 0.5 ohms nominal. It has not blown up, crapped out, or died on me. However, I will be the first to tell you that I am not hard on my equipment. The gain was set with a DMM for 3500 watts at 0.5 ohm with a 55 hertz tone at 40/62 on the volume. However, I do not do competitions, and I do not demo/show off much at all. I barely make it over the 30/62 volume level for daily driving ever. Therefore, the amp is rarely being pushed hard, but it is back there, and it does fine.

As far as my electrical - I have a stock alt, stock front battery, and a g34 yellowtop in the back. I have 1 run of Stinger 1/0 and the Big 3 done. Therefore, there isn't much of a voltage or current reserve.

Today I finally got around to using my clamp meter and DMM. It was my first time using the clamp meter, so I have plenty more testing to do, and better testing to do once I get my Kinetik 2400 installed. But my results, in my car, off my electrical were this:

55 hz 0 db tone - Ac voltage - 76.5, Ac current - 31.85, Power - 2437 watts, Impedance - 2.40 ohms.

So am I happy with the power output? I wish it was a little higher, but that's a hell of a lot in my vehicle, with my electrical, at fawking 2.4 ohms! So I was decently happy with it.

So it's a good enough amp for me, and I hope it doesn't go and blow up on me. I like it and beats on my 9515 plenty well. I'm going to install my AudioControl Epic - 150 Wednesday, so then I'll have some numbers, too.

I just don't see what all the *****ing is about here. If you don't like how they are built or work, then don't run them. But ****, if you haven't even used them, you need to stop *****ing. The old adage is don't judge a book by it's cover. Some of you, who admittedly know much more about amplifiers then I do, claim that the internals will result in short amp life and overrated power numbers. I can't really argue with you because your arguments appear valid to me, and they are a cause of concern. However, my amp has been just fine. I think the problems come in when you run an amp at full tilt daily, all the time. If that's the case, there are very few amps that can withstand that sort of abuse. For me, the 2k6 is working out just fine.

 

[lilmaniac2 5,000+ posts]

one reason why your not having an issue with the amp is dd's are notorious for having wickedly high impedance rise, as demonstrated by your over 400% rise

 

[SeanDub 10+ year member]

one reason why your not having an issue with the amp is dd's are notorious for having wickedly high impedance rise, as demonstrated by your over 400% rise

Well yay for me then. Haha, guess I'll stick to running my DDs low.

 

[tommyk90 5,000+ posts]

I see now. But in NSPL couldn't anyone just change the fuse? Don't know the rules. It would be hard to tell what fuse came from the manufacture. What a hard rule to regulate.
And I have a bunch of MAXi's sitting around too. lol

Yeah, i'm not sure how they regulate the amp fusing. I believe it has to be stated in the specs of the amp or something, but i'm not sure.

And I can't sell these MAXI fuses to save my life. Nobody in their right mind wants a bunch of 20 amp maxi's.

 

[dtbrown 10+ year member]

Seandub,

Gald to hear your results. Give it I would never recommend running a 2k6d at .5ohms for music but you are able to get away with it with your high as hell impedance rise. If you ever test and your impedance rise is less than 2ohms I would raise the nominal impedance to 2ohms. Once you get a bigger battery with the extra power your impedance rise most likely going to go down, so be careful. Keep us posted

 

[tommyk90 5,000+ posts]

the fuse may be done to drop it a class, I don't know.
No, they wouldn't.

and WOW lol 150 MAXI's eh?

lol

 

[JordyO 10+ year member]

But what you fail to mention is that drop in was at 1ohm on the Stetsom to 1ohm strapped on the two 1500D's. The Stetsom gains at least 1 db from 1ohm to .25ohm. And you're not going to get full power out of a 7kd on a single battery. Keep adding more battery and the Stetsom doesn't stop producing power where as the 1500d's will peak. Not saying anything bad about either amps just bring it up.

Jeff.... I just wanted to correct one thing in what you've said. (this was my test btw)

You saying that going to .25 would gain 1db is probably not correct. One thing you didn't consider is that we were using the 2 Ohm version of the 7kd. When my team mates were testing the amp they were never able to get it to burp as low as .25 Ohms. I believe the lowest they could do was .5 to a strapped pair. (each amp seeing 1 Ohm) and with 2 batteries.

In my application box rise was to just over 3Ohms and I was using a single PowerCell HC4000 battery.

(so each Sundown was seeing about 1.6 Ohms and the Stetsom was seeing the full 3.2 or so... I didn't measure voltage drop because I didn't even think of it)

In reality neither was seeing their optimal impedance after box rise. The Stetsom definitely should have been putting out more power for the load it was seeing though when you consider that it's rated at 5kw at 2 Ohms.

I would have gotten more info such as measured output for both setups but I had actually just picked up the Stetsom amps that morning and was bringing it to a friends shop. When there he said I could throw the amp in for a run, which I did, and then posted up the results between the 2 setups.

Not exactly scientific but the results are what they are. I've already been talking to the same shop and I'll be testing one of the 12v versions of the 7kd shortly though!

 

[dtbrown 10+ year member]

Jeff.... I just wanted to correct one thing in what you've said. (this was my test btw)
You saying that going to .25 would gain 1db is probably not correct. One thing you didn't consider is that we were using the 2 Ohm version of the 7kd. When my team mates were testing the amp they were never able to get it to burp as low as .25 Ohms. I believe the lowest they could do was .5 to a strapped pair. (each amp seeing 1 Ohm) and with 2 batteries.

In my application box rise was to just over 3Ohms and I was using a single PowerCell HC4000 battery.

(so each Sundown was seeing about 1.6 Ohms and the Stetsom was seeing the full 3.2 or so... I didn't measure voltage drop because I didn't even think of it)

In reality neither was seeing their optimal impedance after box rise. The Stetsom definitely should have been putting out more power for the load it was seeing though when you consider that it's rated at 5kw at 2 Ohms.

I would have gotten more info such as measured output for both setups but I had actually just picked up the Stetsom amps that morning and was bringing it to a friends shop. When there he said I could throw the amp in for a run, which I did, and then posted up the results between the 2 setups.

Not exactly scientific but the results are what they are. I've already been talking to the same shop and I'll be testing one of the 12v versions of the 7kd shortly though!

Ok. All of our 7kd must be the 1ohm versions because in our test on a single NSB90 we see almost 1db from 1ohm to .25ohms with a rise to .9ohm. Power is 4700w with a voltage drop to 11.1v.

I have the prototype 7kd 12v and it does the same power as our 7kd 16v but at higher impedance (.5ohms) and is more efficient. The only difference between my 12v and the finalized version/ the one you're getting is your's is more stable. I won't be able compare mine to the finalized version until SBN.

But I can say that at 1.4ohm on the 12v to 1.4ohm on the 16v on a single battery was almost 1db difference and a lot better efficiency. Assuming that my amp is mostly the same as the one you're getting so I wouldn't run it below .5ohms if your rise is 3.2 times or less. In my test the 12v got really inefficient at anything under .5ohm and didn't product any more power. It's sweet spot is between .5ohms and 1ohms depending on your impedance rise. But depending on the battery power you plan on testing with and your nominal impedance you should see over 4k on the 12v.

I'll be testing my 12v on a single NSB90 this week and can compare notes if you want. Hit me up if you need any help with testing.

Just be careful when charging to make sure the amps off. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif