Sundown Audio SFB Amplifier Questions Answered
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- čas přidán 28. 07. 2024
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Thanks for going through the questions! Great products, love them!
one of the main things that the full bridge design (aka H bridge) eliminates is the need for a negative voltage rail since the operation of the PWM of the H bridge basically constantly flips the polarity of the modulated square wave across the output filter and speaker, this simplifies power supply design mainly, nothing new, it's just has a bit more complicated PWM and requires more FETs
I was blown away by that amps capabilities when you tested it last week. Your right, they are some powerful amps in a budget.
They don't last cheaply made
@@oclaothug69 they do last actually I've had mine over a year with no issues whatsoever.
3 yrs ago i bought my first sundown setup and it was like yep im hooked! My SFB 2k is powered back up because i bought two
U.6.5's!!!! And i want two more!!! The performance while retaining trunk space is sick!!!
Hey Dude thanks for explaining about these amp. really appreciated
Bravo excellent good video topic of choice for discussion you are the man brother
Derrick should win an award for his unbelievable amounts of patience lol I have heard him say all of this, in videos at least 10 times.. not counting in the comments. Surprised dude hasn't completely bitten his tongue off dealing with this shit. Probably lots of jaw clenching and giving himself a minute to calm down...deep breaths! WooooSaaaaa
Great job man.. YA why people keep.asking the same ?'s is beyond me.. but u are doing a awesome job..
These are good amps as long as you don't try to run them on less than 1 ohm. Good for saving space!
I just want to know one thing Derick can I run it below1ohm,.. just kidding man great video LOL. LMAO....
Currently running korean 4500.1 and a 250.1 class d amps. They are beasts but take up a ton of space and heavy. I would really like to see that output section that ur speaking of and compare the component differences in one of ur koreans and full bridge to fully help alot of us understand the differences and pros and cons. Always been told the full bridge run very hot. Being in Texas reducing heat is a must. Can u elaborate as two why they would or do run hotter. This video was helpful but a more in depth on the difference would be great.
Good looks bruh watched it in whole lol
Man. The power that comes out of the amps is like almost to good to be true! Your making me feel fake thinking this is real? Ok. I'm gonna buy one. Lets see what happens?
Bring the SA-12 woofer test part 2 already!!
Great video!
The topology of these amplifiers only share the full bridge, in what they differ the most is in the type of rail they use, sundown uses a double rail, eg:+ - 70v and the Brazilian amps use a single rail, that is, a 160v rail, What if they seem to share is the use of a control chip that is in charge of source oscillation and amplification oscillation.
In addition, they share the high frequency of oscillation in the amplification phase and this is what makes both amplifiers so efficient.
I have the SFB 200.4 and my friend has the SFB.500.4 and both are awesome
What inline fuse you used
I just picked up the sfb 2000 since I needed a small amp that puts out 2k at 1ohm. I had the sae 2000 but it's too big to mount to my back seats in my 2020 charger scat pack. Can't wait to get it wired up. It's powering 1 X10 v2 just waiting for down4sound to make my box.
How do the crossovers work since there is a low pass and high pass but no switch to turn either on/off on the mono amps? I assume it works like a band pass crossover? Crank your high pass all the way down or to be your subsonic filter level and then crank the low pass to the high end of what you want to play your subs at?
Do you have to use a RCA Y splitter to just connect to the top Input of the RCA's on the Amplifier ?
Man I want me one of those sfb1000's... those things looks awesome... finally some sundown amps that won't break my wallet lol don't get me wrong your Korean boards are some of the best out there for sure :)
You don't want one of these amps it sounds good but I bought 2 of them and they both stay in clip mode
@@frankmistretta6288 is your big 3 upgraded?
@@frankmistretta6288 Just came to say for anyone else reading the comment section that I can confirm this. I have a 1500w and it just crapped out on me earlier this week. Solid clip light and no power output whatsoever. My wiring is beautiful and better then most people's I've ever seen too lol. Hoping the "warranty" that the "shop" I bought it from will be honored through Sundown. The audio shop told me I had to go through them.
@@theevilshred5567 was your eltrical up to par to support the Amp if it wasn't then we know why
My question is for my setup. I have four hcca 15.2 on a 12k splx amp with three 320 amp alternators and 120 ah lithium Bank. I blew my splx and I just ordered your 13k sfb to replace it. My charging is around 14.7 volts. Is that sfb 13k going to have less of a current draw than the splx?
What frequency you tune at and would they be able to produce the power between lowmid to highs
I just got a sundown sfb 2000d and I am powering a sa 12 version 2 wired to 2 ohm in a custom box tuned to 35 hz. what hz test tone should I set the low pass and high pass too?
Sundown - Can the internal crossovers be used as a bandpass for output to a subwoofer? Can the high-pass be set at 15hz/ 20hz (shallow subsonic filter) and still use the low-pass crossover at 80hz and down for the output to the subwoofers? Or does the HP crossover just control the filter for the RCA output jack to a separate amp?
Thanks!
Is there any way you can tell us the efficiency on the amps? Sundown for the win!!!
Can I run one those on 2 Sa 15s d4 or would it be overkill? I'm running the sae 2000d on them now in a qbomb ported box.
What fuse do you recommend using on a 500.4 sfb?
I appreciate your information on here and your Facebook page and I sent you a request and want to get back into the car audio world after nearly 20 years if being away from it
DEREK Question... i just purchased the SFB 1000 and i want a matching amp. Will the SFB 200.4 work good with Focal Es165 K2 components? I have 2 sets. Or should i wait to save for the SAE 100.4?
Hey if I just run 1 sub woofer do I just hook it up to one of the outputs or hook it up like a normal bridge?
Serious question what's the power ratings on the 200X4? Is it 100 at 4 ohm per channel? 400X2 bridged? Also why is DOWN4SOUND showing them available already?
What are the fuse ratings for the amps?
I just received one of these amps. This may be a stupid question, but from the few amps I have ever owned there were always fuses on the amp. I see no fuses. I have a fuse at the battery. Am I supposed to wire fuses myself near the amp also? Sorry but I did not get an owners manual in the box.
Cant find any wattage numbers anywhere for the SFB 1800.5D 5 channel amp. Any word on those? I'd love to use one to replace my ppi 4 channel and sundown sae2000.
Plugging both RCAs is ok? Even though it says output… I’m running 5000 sfb and was wondering about that. Does it make a difference running single amp?
I ordered a 1500 watt sundown amp I had it for 3 plus months I installed it yesterday I hook thr power,ground and remote wire. It went straight into clip light with no subs hooked up... I emailed the company already to see what to do
Can a SFB 2000D can handle u12 without clipping using stock altanator & update XS battery? Also so these amps burn up like what others say?
I have the sundown sfb 1500 on two mojo 8's, running on 4 gauge power and ground,do I need to upgrade my wiring to get the full power out of this amp?
Good info thx
You talked about putting to much voltage to the SFB. What would be the lowest you would want your voltage to drop to while pushing it full tilt?
i love your product, i bought a woofer at the yard sale. and got hook. so i bought sfb 1500d ,can you do a video on setting of the amp. like the gain,crossover, bass boost
I would like to see this also. I'm trying to figure out how to wire it at 1ohm or 2 ohm, using the dual speaker connectors on the amp.
Will there be 2 ohm models available like other full bridge amp brands have?
Do you have to use both grounds and positives to power it?
I have an sfb 1000. I wired in a ds18 v2hl line out converter. Have a strong ground, 150amp fuse, and sky high remote wire ran to an ignition wire off my stock head unit. I hook the amp up with only power ground and remote and when i turn the car on its in protection mode (protect light blinking), clip light solid, and power light has a slow blink. Not sure why its doing it.
these sfb amps are they considered 2 channel amps stereo? Or would I use one amp per door speakers as like a mono set up??
and a full bridge design could technically push the same current as the SCV line's half bridge with the correct selection of FETs, i have noticed that the SFB uses the smaller TO-220 style FETs in the power supply rather than the bigger TO-247s like the output section uses, which I find interesting, the SCV line uses all TO-247 style... this may be part of why the amp shows high power at higher ohms, but hits a limit on power as you lower the impedance, as the power supply's rails collapse as more current is drawn from the amplifier section.... which isn't necessarily a bad thing as that allows more power as the impedance rises during play
Are you planning to make a preorder option for sfb or salt amplifiers that are coming?
Can you do a video on the 1800.5 channel amp dont understand how it is rated for example 1-2 channel at 2 ohm - 300 w rms
3-4 channel at 4 ohms 200 w rms
5 channel, at 1 ohm: 1000w
5 Channel; at 2 & 4 ohm : 500 at 2 / 250 at 4
so for channel 1-2 does each speaker have to to a 4 ohm to get the 4 ohm power rating or will this bring it down to the 2 ohm not sure if it is bridged like a mono block
I think my rca on my sae 3000.1d went bad... would this be a better amplifier?
Do you have to hook both sets + and - ? Does it make better power or it doesn’t matter?
hey I have a sfb 1000d and my clip light stays on and I'm also not getting any output to the subs now. any recommendations?
Do you need both positives and negative to get full power from the sfb 600d or can you run a single positive and single negative? I have two 4ohm dvc subs
I have a SFB 1500 I just turned the car on, and now both my blue and red on the amp blinks, no music..but have highs..what do u think? Duff from N Philly..
What would power output be @ 3ohms on SFB-1000D?
Two 12" Zv5 D1 1ohm subs on an SFB-8000D at 1ohm or a SFB-13500D at 1ohm? Think the SFB-13500D is too much?
I am intrested in the sfb500 watt amp for my harley.how much is it and would it be cheaper to goto you and pick it up
How come I grabbed one of the first sfb 3k’s and got all stoked bout the new bass knob and it came wit a plain Jane one wit no clip light or anything special? I looked like a Toolbag talking trash to my dealer bout how these come with the new hotness and we open it up and I got the hifonics (jk) basic a.. knob that boss amps come with. Lol. Let me know how I can perhaps scoop the knob that’s actually for these amps plz
What does the remote knob with these units do??? I had an SFB2000.1 and the remote knob had “Bass Gain” printed on it, but I switched for the 5k version and the remote for it has “Bass Level” printed on it. Add all this to the fact that the screw on the unit itself that’s labeled “Level” is actually a bass boost adjustment and it’s pretty confusing. In the pdf manual that Sundown finally released this week for these amps, it just says the remote attenuates between the lowest setting and highest setting. WHAT SETTING IS IT ADJUSTING???
Good information...even if you appear aggravated when telling it. 😂
Can i use 1000 or 1500 on your shallow 10s for my harley ? Do not wanting to go with sound digital.
how hot do the amps get? time wise
What about the crossover modes, and frequency ranges?
Ok my local shop pared that amp to a mojo mini 8 . The clip light stay lighting up is it the sub cant handle it or is the amp to small
Hi Derick, my question is can you control 2 sfb 5000d's with 1 bass knob? Thank's in advance.
Hey Derek I want to switch over to a sundown woofer I have a Rockford 1500bdcp at 1ohm it's rms is 1803 what sub do u recommend I'm putting it in my work van thanks
i would like to know how many amps does the 8000d need to run at 14.4
Can you run a torture test to see what the temperature rises to after a half hour of run time at full power?
Roy George great question!
Dooo ittt
It won't danm thing will fry in 5 minutes
My sfb 2000.1d amp went out today disappointed very cheaply made
@@oclaothug69 I have the same amp and torture the hell out of it, if it isn’t very finely tuned right it will do that, but if everything is tuned correctly it’s an amazing amp and even once over heated it always comes back to life. check ur tuning and electrals bc it’s hard to ruin one of these
I would like to see a demo with Neo Pro 8s. I have not found any videos with these amps running in high pass yet.
What's up guy, I have a sundown audio sfb 3000D. My bass adjust makes noises when I adjust for more bass so I bought another one to replace. I hooked the new one up and now my amp is locked up in protection mode. Please please please help me!
How do you gain match 2 SFB amps to a single d1 sub? Due to them being full bridge, don't they have to have a load on them when powered up?
I just blew a 1 of my 2 sa v2 18s with my sfb5000d . Now it’s stuck on clip. Can I turn that off some how or is it broke for good?
What would the tune look like on the sfb 1500d if I'm running 2 Sundown Audio SA-12 D4 Classics at 1500 rms?
Do these have the same hum as Brazilian fb amps?
Ok it's been like a year now so what's the deal on reliability? Do alot of these come back? Could I get away with 4 gauge wire for 17' and 2 ohm load?
Hey I just purchased a SFB 3000d and the yellow clipping lights stays on even with all levels down down! The yellow clipping light comes and stay on immediately the amp receives power! What can I do to have that clipping light go away?
Man I'd love a 200/4! 😫😫😫😫... I love the idea of this line of amps
@jordan havel did you get a sfb 200.4? Wanting to get someone's input on them who has had firsthand experience with that amp model..
I just ordered the sundown audio sfb 5000 amp on Thursday so I'm sure it will be here by the first of this coming up week. I've had nothing but great experiences with full bridge amps so far but the only full bridge I've used so far has been monoblock Brazilian board Taramps.
@@itdoesntmatterwhatyourname6128 i haven't no .. money's tight at the moment... I'd love to run an amp to my mids and highs. In time I'm sure . But as of right now I have to stick to my aftermarket radio
I've got 2 of the 500.4. Love em so far
@@itdoesntmatterwhatyourname6128 I have one on 4 pioneer 4 way 6.5's in the doors of my Tahoe, sounds great. I also have an sfb 8000 on two u 15's.
are they good for phoenix gold elites 2-12s TI312D4X
How much can I turn the gain up on the amp because I was told if my clip light comes on it will be fine considering the amp?
will it run the sa 10 inch subs
My amp keep going on protect mode but ain't no wires or nothing touching when I first got my amp I had this problem
Just bought a sfb-2000d from a guy, the clip light flashes 10xs then all 3 lights come on for a second then back to flashing (rinse/repeat).. Help?
My Sfb3000 is putting out DC to my sub Sub stays pushed out I open them up and I don't see anything burnt or anything what do I need to change in the amp so I could tell the repair shop
If i have a 15 inch sundown ZV3 and a SFB3000D what would be the best wiring diagram?
Just bought the sfb-2000 and paired it with brand new x-8s dvc4 running at 1ohm.. my question is I can barely turn the gain up 1/4 way before the amp starts clipping.. is it super sensitive or could there be something else going on with my setup
Firstly google what is clipping and how to set an aamp seconly 2000 watts is way to much power for the 8 gunna pop that littleguy
I have a 2000rms xv2 custom with 8 layer spider and zv4 could I run the 1k to separate coils?
I bought 2 of these amp can you explain nto me how I would be able to wire these together or can I even wire them together lmk please
What I wanna know is if running below 14.4v, say hitting 12v bad for these amps? I see the dual runs to the amp and I know not everyone is gonna be able to do dual runs or keep up with 14.4
the working voltage for most of these amps are 10.5v-15.5v Late azz reply lol
If I have a northstar 190 battery, stock alt 170 , 1/0 big 3 , you think I can run an 5k ?
What about how they sound compared to a half bridge?
Question on how to set the high pass and lowpass filters when running the sfb amps on subwoofers? Thanks for videos and all the info.
You ever figure it out? On mine I just set both to the lowest setting. Low pass starts at 80hz according to the printing on the amp and the high pass starts at 15hz. So that drops anything below 15hz and above 80hz which is right in the range I want for my SA 12v2. I was scratching my head a minute from the lack of a crossover switch when I first got it but it sounds good this way which is good enough I suppose.
This is what I was wondering as well. I have the sfb 2000d with my X10. I was confused how to tune that. Lol
@@famtsla how does it do with the low notes? Have you had any issues tuning it?
There is a sundown video about how to set the crossovers on these amps including any other amp.
@@clipciti6977 even after tuning this amp, it still can't hit the lower 30's hertz wise and as soon as I switch to my stetsom 3k, everything starts to shake and it hits every low note thrown at it. This sfb2k just isn't the best amp for my 32 hertz enclosure and zvx because the sound is unmistakably better and deeper with my EXStetsom EQ 3k vs my sfb2k. I'm unhappy with this amp and I'm considering selling this amp now that I realize I'm not going to get that sound that I desperately want and need.
What size inline fuse do i use for the 2k
Can the sfb1000.4 have enough power to push 4 rcf 10 inch 700rms midrange at 8 ohms each
My friend i have subwoofer sundown x15 v3 1-ohm what amplifier buy for it??
I got a SFB 2000 and the positive for the speaker wire is burnt on the outside what can be done about that
Do you have to use both power inputs?
Hey what’s the difference with the sfb3k and isb 3500
Hopefully there will b a salt 800.4 or bigger i am still wating for the salt 8k inpatient
For a amp sundown sfb 2000 do you need a 2 battery oh I can use 1
I just got my SFB-500.4 amp I was wondering what size wire do you recommend to use?
4 AWG