Sold 2x SD8000 link - Used only in one competition - 26kW at 0.5 ohm

[murilo 10+ year member]

Hello

I´m selling the 2 amps that I used at SBN in my Marbella in Street B, did 156.9dB with them.

With them I got 10700W out of a single 12V battery (HX400) and of course, if you put a stable 15V on them you get 13kW each.

They are strap able and comes with the link cable.

Good condition.

2500 + shipping (the price wont drop)

Click to read more...

 

[psychoacoustics 10+ year member]

why are you selling them?

willing to let us test it first?

i mean im sure it works just want to compare power to what we have

ill bring it back to carlisle for you, plus free entry to the show?

 

[JordyO 10+ year member]

Hm, still not really getting it. I guess there's just different uses for the term strapped. When I and other people I know say strapped, it refers to running a 1ohm load to two amps that are strapped, where each amp sees 0.5ohm because it is paralleled.
Kinda like bridging a 4 channel amp. A 4channel amp may be stable to 1ohm x 4 channels, but when bridged it'll be 2ohm x 2 channels, each channel being run at 1ohm. I don't know, maybe I'm confusing something here, it's very possible //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif. Very little sleep after the hours I've had at work lately. //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

Anyways, best of luck with the sale Murilo!

There is more than one way to strap an amp.

The way these amps strap (in parallel) it doesn't cut the impedance in 1/2 it actually doubles it //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[murilo 10+ year member]

Psycho I need to sell to raise funds for the Astro that Im building

Also Ill use 2x SD12kD on Marbella now.

 

[murilo 10+ year member]

Hey where are the crazy dudes?

 

[psychoacoustics 10+ year member]

we are here whats up ?

 

[nativeboy 10+ year member]

i still have seen no video of the amps put to good use....just pictures...with no scores

Here you go > http://www.youtube.com/watch?v=oDhRBMB3vok //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[NDMstang65 10+ year member]

Hello, yes, our amps have H-bridge output topology, we use IR2010 drivers and a PIC controlling the power supply, especially the PWM so we can have the wide power voltage working range, from 7.5V to 18V or even higher.
I agree that 95% of the amps use half bridge because is a lot cheaper to build, they use a bunch of cheap components, we prefer like this so we could create the smallest amps in world for such power. We use always the top components, for example the power supply of the SD8000 have 16x IRF1404, and in the newer SD12kD we are using a even more powerfull (and expensive) TO267 power supply FET.

What voltage/amperage FET are you using on the 12kD?

The ones in the 8000's seem to be a 40 volt 120 amp...

I'm having a really hard time at trying to grasp how the power supply could be taxed at over a 75% rate all the time...and not die.

Also, what kind of power supply do you have set up to do the bench testing into the resistive load? Just a battery bank?

Thanks!

Edit: Sorry for asking this in here, best of luck with selling your links. My apologies.

 

[murilo 10+ year member]

What voltage/amperage FET are you using on the 12kD?
The ones in the 8000's seem to be a 40 volt 120 amp...

I'm having a really hard time at trying to grasp how the power supply could be taxed at over a 75% rate all the time...and not die.

Also, what kind of power supply do you have set up to do the bench testing into the resistive load? Just a battery bank?

Thanks!

Edit: Sorry for asking this in here, best of luck with selling your links. My apologies.

Hello!

For the SD12kD I can´t give this information, the amp required 2 years of development for the output stage, a lot of things in this amp you wont find in any other amp (until some copies start to appear).

In the SD8000 we use 8x 200V 90A output devices.

For this test was a battery bank.

What do you mean over 75% rate?

 

[NDMstang65 10+ year member]

Hello!
For the SD12kD I can´t give this information, the amp required 2 years of development for the output stage, a lot of things in this amp you wont find in any other amp (until some copies start to appear).

In the SD8000 we use 8x 200V 90A output devices.

For this test was a battery bank.

What do you mean over 75% rate?

No no, i'm talking power supply fets.

 

[murilo 10+ year member]

IRF1404 my friend

202A continuous (not the case)

4 times that pulsed, 808A max each FET, we use 16.

 

[psychoacoustics 10+ year member]

i got an 8k on the way not one of these but a new one and a 4 channel

ill keep everyone updated

 

[murilo 10+ year member]

The price is with shipping included than

 

[scott s 10+ year member]

bump for a good seller and killer amps as i have 2 of these myself

 

[CobraStang98 10+ year member]

Got to see one of these in action this past weekend, extremely impressed. Very small footprint, but puts out sum insane power.

 

1 12" DC Lvl4 w/ custom recone + SD 8K = 156.3 outlaw style.

 

[Annnarbor84 5,000+ posts]

Got to see one of these in action this past weekend, extremely impressed. Very small footprint, but puts out sum insane power. 

1 12" DC Lvl4 w/ custom recone + SD 8K = 156.3 outlaw style.

Impressive # there