I have a prv 800.4 it's just like the 200.4 sfb

It’s a 4 channel we want to see the power on all 4 channels

So 3k 4channel. Wow!

My alpine r a60f is a dumpster fire! God god almighty i need love

This is insane like he said lol. Finna go get one brb.

Them tests on that dyno dont surprise me. Those amps do very well no matter how they are wired.

I buy one Friday using it on my two RCF but they get hot quick can you tell me why they get hot so quick

I could do all 4 doors with that! but Im waiting for the 5 channel sfb test one of these weeks

I was completely on board to grab one. Was.

actually would like to know can i do the stb1000.4 at 16 ohm bridged stereo

Why don't you guys update your website with all of these new products?

Can you give me an idea what may cause the protect light to flash and the clip light to stay on solid and the the power light to flash on every few seconds. Dose this with or without speakers and rca's hooked up. Bought used like this trying to get it up and running. Any info would be greatly appreciated.

If I'm bridging channels do I change anything with the rcas or do I leave then as normal?. thx

I'm gonna run this amp on 3 4ohm speakers bridged at 1.33 ohms. Will let u know how it does.

So a 200.4 is plenty for 2 sets of 6.5 sacx?

Just thinking about all the talk show host that are doing the shows from home and it feels awkward to them, then I watch you and how professional you are without an audience in the room and it makes me think that you're better on camera than they are. I don't know it's just an observation. Thanks Derek that's a sweet-looking amp.

No internal fan option?

Powered 4 rcf 8 ohms 10 inch midrange bridged n amp came up in smoke... what's the cause of this?

I've had this amp sitting at home for AWHILE now! Looks like I'll be doing some amp switching this weekend

How much of a difference would this class D vs a class A/B for pro mids & highs?

hey big dog i have the 1000.4 can i run it at 8 ohm per channel

Can anyone say what will the sfb 1000.4 dow bridge at 2 ohms

All I can say is HOLY SHIT.!.!.!.!.!! Think I found my new amp, there is so many different applications for this amp with this power, 4 channels, and the bridging...... I was gonna go all SKAR but this new SFB line has me reconsidering my choice.

Derek thank you! for putting out video's.

Power is great, but I'm curious as to the sound quality. Does it suffer from the same gritty harshness of the Brazilian amps ?

Imagine running supper tweeters off this amp. It would be a ear killer

Looks pretty good. Are these suitable for mounting behind the dash? Do they stay pretty cool?

Derrick love the thumb nail . Good choice looks like you just smoked ya 1 🚬

Wow . What a little beast👍👍👍

Dame nice......but don't understand the thumbs down ppl put..if I could I'd put 2 thumbs up

Holy crap.. that's awesome. ... im.going to be ordering me one ..

I wonder what 40hz numbers look like since this was all 1khz tests. If you want to know what 1ohm, 2ohms and 4 ohms looks like fully loaded, divide the bridged numbers by 2 and that will tell you what all channels driven looks like.

What a powerful little beast of an amplifier!

How did it handle the heat steer the tests? And for external fusing what size fuse would you recommend? Already bought one, planning to install in a motorcycle fairing. Thanks.

WOW found summing to replace my Alpine pdx 100.4...!!!

So powerful I'm not sure if you really even need a 5 Channel

wow that's alot of power for a 4 channel amp, I would just want a good amp to push (2) 6x9s and (2) 6.5s. I wonder which would be better, the SAE-100.4 or the SFB-200.4D to push (2) SA-6.5CS v.3 and (2) SA-69CX

So you telling me I can have a MEAN 3 channel setup? Say no more 👍🏾

Wow love this amp

Derek what amp do you suggest if I want to power a 8v3 and 10 mids+tweeters the 200.4 or the 500.4?

That is crazy wow

Hey tht amp is perfect for my set up

Real power

WOW! Crazy Power!

Is there a SFB 5ch amplifier

Would this be an upgrade to the Prius with 4 6.5s???👌

I just kept saying wow..

I ordered one. Itll be here tommorow!!!

😏Sexy amp! Love the RCA input choice!

3k

I have a 2007 Tahoe. I’m trying to run 4 6.5 and 4 super tweeters. What ohm load should I by to run with this amp, 4ohm or 8ohm speakers

So the wattage in the beginning is only for 2ch and those #'s should be doubled to calculate all 4ch??

So I could get 2 of these. Run 1 for my doors and bridge the other one and run to each coil on a single sub sq setup? Say no more fam.

I’m hoping we’ll get lucky and see a one ohm bridged 😎😎😎.... or maybe even .5🥵🤯😈😈 some one some where will try it I have faith in sundown I’ve seen an ev 2 12 take 4 times rated in a box three times to big and a passive radiator to boot

A beast!!!

THERE IS NO OTHER 4CH AMP ON THE MARKET THAT DO 1 OHM DAMN AWESOME :)

Would it hurt the amp if I only ran 2 channels @ 1ohm for a daily set up? As in leave the other 2 channels empty

Dope thats a nice little amp. Might not need. A. second 4 ch amp

That is quality.

Is there a SFB 1000.4 amp or 1000x4 channel amp.coming out? I saw it on the down4sound website and says its out of stock, but I don't see it on Sundown website.

Why did you discontinue such a good mini amp

How is the sound it matters in the mids and heights

Can you test the sfb 1800.5 soon, very interested in that amp for my wife

8 LCS 12's 🤤

Back in 2014 on my first system i ran my mtx terminaters (2 ohm) bridged on amy alpine 4 channel. It ran fine and never broke. But my amp would get INSAINELY hot. Iike you couldve cooked a steak on it.

I figured each channel would play the same.

Where is the 200.4 test?

Where can I get one of those Sundown vinyl Banners u have on the back wall? NEED ONE ASAP!

How many 4 ohm mids can be hooked up to this amp. Rated at 200 each.

My question is, does it outperform the "200.4" surfboard?

will you be doing a amp dyno test on the SFB 200.4??

Can I run this as a 3 channel? 2 channels for my front door and 2 channels bridged for a small sub? I wanna put something in my cargo van. I already have 3 way components in the doors 4ohm and I wanna run 1ohm to 2 6.5 subs 1ohm.

Nice

This AMP is AMAZING! Does it come with a FREE Roll of T.P.! I shit myself it was so good! LOL!

What frequency was the test done at 40 Hz or 1K because you never said in the video and that makes a difference in power

Hey guys can we stop requesting gut shots of full bridge. There just not sexy like a half bridge . I almost feel like I am cheating using the full bridge amps I have but man it saves so much space . My sfb 8k is .25 the size of a Korean 8k but definitely different way to make power

Would this amp be a good choice for 4 6.5 coaxials

Hey bud do we have an eta on the bass knob with clip light for the original sfb 3k owners? @sundownunofficial

Looks like the amp can do 800+ watts per channel. That would put it well over 3k!! Most of the tests were done well under rated voltage. Video should reflect that. Awesome job Sundown.

Why is there so much extra space inside that? Heat dissipation?

A lot of power, but what about quality sound?

ALL I CAN SAY IS "HOLY SHIT!"

Hell yeah

What is max voltage can it do more then 15v

in before the thumbnail processed lol

Does it heat up quick ?

What frequency is that test

Any sfb 200.4 dynoes?

Let’s hear them at 1Ohm on speakers

I'm waiting on my SFB 500.4 to be delivered right now and can't wait to hear how my mids and highs sound with it.

Sfb is sundown from Brazil lol

Finally some good quality inputs in a "full bridge". Those shitty Chinesium pot metal terminals that even hertz/focal are using SUCK! Rockville uses them exclusively, that tells you everything you need to know. Taramps are even worse as they don't fit standard wire sizes they're meant forj unkyard thhn home wire ripped out of the wall as found in 3rd world Brazil

Badass! Shame we're all gonna die of Corona.. I would loved to have owned one lol xx

I'm guessing it would do 4000w

What does anyone know about niche audio subs? I have 3 12s i bought for a song... and i cant sing for shit so...

1400w 1ch bridge

What jew talking about Willis ? 1ohm stable per channel ? 4 4ohm speakers per channel ? or 8 8ohm speakers per channel ? 16 4ohm speakers total or 32 8ohm speakers total Holy 💩 Batman !!!

On the new 500.4 my guess 2000 watts rms

Total output all 4 channels is 605 my guess

Hits one of these amps with a low ohm test a lot of people are having these amps just quit and every video I see on it they just bashing it saying it just burned up for no reason... would that be cause of going below the rated impedance cause I wanna but one for my doors but now idk I just need to know these amps are golden and they gonna hang in there I see you abusing it right here so I don’t know why people are having problems with these amps... does anyone else have problems out of them