Sundown SFB-1500D Amplifier Dyno Test *Amp Test Tuesday*

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  • Опубликовано: 11 дек 2024

Комментарии • 179

  • @flatdog691
    @flatdog691 4 года назад +18

    At least they're discovering not everyone has a lot of disposable income

  • @gianstevens7918
    @gianstevens7918 4 года назад +6

    Just means you underrated your amp, it's a 2k amp being sold as a 1.5k. Awesome that you're giving the people more bang for their buck though, I support that. It's just a little easy being so conservative on your ratings and then acting all surprised when it does almost twice it's rated power.

  • @oneway7412
    @oneway7412 4 года назад +11

    Impressive efficiency @ 2 ohms. Close to the same output as the sfb 3k @ 4 ohms but the 1.5k pulled less current. Only about 80 watts difference. 1k was very efficient @2 ohms too. Digging these tiny amps. 👏👏👏

    • @superchile9640
      @superchile9640 3 года назад +2

      Yeah I saw the SFB3000D isn't very efficient at 4 ohms and that sucks as I own one and I'm using it at 4 ohms. Only running 2 JL 10w6v2 subs.

  • @tankdog03ify
    @tankdog03ify 4 года назад +14

    You should test the sound quality between this amp and a Korean board amp on a spectrum analyzer or RTA on a mic, use same power source and swap RCA's back and forth.. just a thought, I've always heard they sound different, I've always ran Korean amps myself but I'd run one or two of these on mids and highs (left & right)

    • @oneway7412
      @oneway7412 4 года назад +1

      I’m curious about the sq as well. It’s the only thing holding me back from getting one.

    • @NoiseOrdinance704
      @NoiseOrdinance704 3 года назад +1

      Tbh going from my Rockford bdcp 1500 to a sfb 2000 I can’t hear too much of a difference if any in sound quality and with more power now it’s noticeably louder

  • @jaynkelly739
    @jaynkelly739 4 года назад +4

    I THOUGHT IT WOULD HIT 2100 WATTS BUT IT SLAPPED 2200 WATTS AND FOR THAT IT HAS EARNED MUCH RESPECT. THAT IS A BAD ASS LITTLE AMP. THAT IS SWINGING IN THE HEAVY WEIGHT CLASS.

  • @markguerrero5915
    @markguerrero5915 4 года назад +3

    Finally, Sundown sells a product that's very affordable, and passes everyone's expectations.! Good job! May just have to sell my Soundigita evo 4k and get a sfb!

    • @SUTH_33
      @SUTH_33 2 года назад

      are u drink? soundigital just have between a evo 3k or 5k. doesn't have a evo 4k lol

  • @highgoals4207
    @highgoals4207 4 года назад +5

    Im loving this amp. The price is perfect for the deal.

  • @gkcaudiounlimited1699
    @gkcaudiounlimited1699 4 года назад +5

    Good power for the money. I'm definitely getting one. 2201 watts at 1ohm is great out of a 1500 rated power amp.

    • @robertnorwood8712
      @robertnorwood8712 3 года назад +1

      Only if you got a 15 volt system so it drops to 14.8. Most all cars and trucks run about 13.8 volts at best. Orion does almost twice the rated power at 12 volts.

    • @robertnorwood8712
      @robertnorwood8712 3 года назад +1

      Drop it 13.8 volts and see what it really does at regular car voltage. Bet it barely makes rated

  • @alanstant9356
    @alanstant9356 4 года назад +1

    I about figured that it would do 2000 easily. When i seen 2200, i knew it Derek. Thanks for sharing.

  • @wtmf80
    @wtmf80 4 года назад +3

    I may be mistaken, but I'm assuming the majority of people who are going to buy these amps are going to want to run them at 1 ohm for that power. I said it on your last amp test video and I'll say it again. It would be really nice to see the current draw at 1 ohm. Yes clearly pretty much everyone is going to need an upgraded electrical system to run this amp, but it would be good to see just how much current these amps draw at max power.

  • @________GHOST________
    @________GHOST________ 4 года назад +6

    110 amps awesome. But now it is time to say WITH THIS AMP A PERSON HAS TO GET A HIGH OUTPUT ALT TO RUN JUST 1 OF THESE AMPS AT 1 OHM

    • @djwonderbrad
      @djwonderbrad 4 года назад +4

      Honestly anyone running over 1k watts on a stock alternator is pushing it.

    • @Sm30k
      @Sm30k 3 года назад +1

      @@djwonderbrad second battery?

    • @stevemaniaci4750
      @stevemaniaci4750 3 года назад

      What do they use capacitors for?

  • @shanesubashe787
    @shanesubashe787 4 года назад +5

    I'd be curious to see what power it makes with only one 1/0 wire on each input. That's a solid amp.

    • @ramus9
      @ramus9 4 года назад +1

      The same it did.

  • @LDRTHNU
    @LDRTHNU 4 года назад +1

    Bad ass, my brother has 2 sfb 8ks, on 4 x 12s and 40ah eh5 lithium we just got it all built and man it's bad ass💯🔥👍🏻✔

  • @kevinhollingsworth5816
    @kevinhollingsworth5816 4 года назад +1

    Damn those SFB amps are power houses!!! Can't wait to see the rest of the lineup. Definitely interested in the 4 channels as well.

  • @dcoker1234
    @dcoker1234 4 года назад +1

    I would love to see another SAZ-1500D type monster. You through a solid electrical system w/ 14.4v + power to it. At .5 nearly 3000w was very possible and can run them all day. Love mine on my custom x-12v2 dual 1ohm w/ red spiders in a 3 to 1 4th order. It freaken slams.

  • @xtrmbrazen6153
    @xtrmbrazen6153 4 года назад +4

    Wow these are awesome amps! Great price too. I will be getting that one and a 4 channel. I just gotta get them lol

  • @2KGrind09
    @2KGrind09 4 года назад +2

    just put one in my 2018 impala with 2 12's .... HUGE difference from what i had in there

    • @josesalazar8976
      @josesalazar8976 3 года назад

      U think it can handle 2 12s I got alpine type s 500 rms each sub

    • @2KGrind09
      @2KGrind09 3 года назад

      @@josesalazar8976 It should but I did have to replace it pushing it hard with the bass way too high... just make sure they adjust it right on the settings

  • @scottie6-573
    @scottie6-573 4 года назад +5

    Where's the Woofer Test Wednesday NightshadeV4 SPL test part 2??? We've been so patient...

    • @goldhunter9641
      @goldhunter9641 4 года назад

      Nice Amp for The Power to Price Ratio and I really like the 1/0 Hookups, it would need a Alt Upgrade and it would be worth it

  • @MyBlowncobra
    @MyBlowncobra 4 года назад

    I think that's awesome..89 percent efficient at 1400 watts...you can't beat that at the price..very nice guys,I think these amps are going to be your best sells to date....

  • @oregonlove7488
    @oregonlove7488 2 года назад

    my first system at 40.. showed the homies .. that tiny amp.. lol we talked ... big things come in small packs

  • @jacobwarren6841
    @jacobwarren6841 4 года назад +4

    Please do uncertified and dynamic runs on all the amps

    • @shyneblue2290
      @shyneblue2290 2 года назад

      Plz do the dynamic cuz ppl listen to 🎶 not test tones

  • @robertdavidson548
    @robertdavidson548 4 года назад +12

    When that 13K drops, I'll throw my MD 12K in the river

    • @marcorodriguez7748
      @marcorodriguez7748 4 года назад +1

      Robert Davidson sent it to me! 🥺

    • @erictheboringone5292
      @erictheboringone5292 4 года назад +2

      Nah bro you should show a disabled combat veteran some love and shoot that on over my way.

    • @WafflosityX
      @WafflosityX 4 года назад

      I hope the MD 12K is already sufficiently fried already then

    • @robertdavidson548
      @robertdavidson548 4 года назад

      It was a joke guys. A joke

    • @WafflosityX
      @WafflosityX 4 года назад

      @@robertdavidson548 lol

  • @karl6823
    @karl6823 4 года назад +1

    Awesome power from that little guy!!! Not surprised its sundown🤘🤘🤘🤘

  • @poocruncha3266
    @poocruncha3266 4 года назад +1

    Well the Orion xtr 1500.1d has met its competition...I would get this instead of the orion amp. This amp is also competing with the skar 2000.1d rp....hmmmm....I'm done window shopping now. Sundown got comp....🤙🏽💪🏽🤟🏼👏🏽

  • @Ronco160
    @Ronco160 4 года назад +2

    What's the max rca voltage input for these amps?

  • @magicstroke8691
    @magicstroke8691 2 года назад

    gonna put this on a sa 12 v2 sounds like it’ll match well.

  • @adamillnevertell566
    @adamillnevertell566 4 года назад +1

    I think it needs 2 fans one sucking air and one blowing air to get more efficient cooling across the board and I think you guys should look into maybe seeing if there is a manufacturer that would cut a hole through the board so you get a better airflow instead of just slapping it on the board cuz he would be a huge advantage to get air movement on both sides of the board that's just my thought then you guys should come out with a monoblock that is a cheap in a small as these cuz that's one of the only reasons I don't go for some of your bigger monoblocks is the price it seems like we're paying for a brand name and not sound quality anymore...... please don't turn into kicker......

  • @oregonlove7488
    @oregonlove7488 2 года назад

    shit slamms my gothic 12s in a kicker box lol... first got it for my alpine type R 15.. traded... still hits this amp is G,,,,

  • @stevenmeadows9251
    @stevenmeadows9251 2 года назад

    I have the SIA 1750D but cant find a dyno run on it.

  • @alexdrust3474
    @alexdrust3474 4 года назад +3

    i pay 289.99 on amazon, will this blow a sa-8 v.3 d2 ?

    • @rexnhogz
      @rexnhogz 4 года назад +1

      blow the top off

  • @raymondknowles839
    @raymondknowles839 3 года назад

    Love the amp why the bass knob blinking instead of staying lit the music shuts out the blue light blinking soon I turn the music down it suddenly comes back on

  • @stevenmeadows9251
    @stevenmeadows9251 2 года назад +1

    Will you run it at .5 ohm

  • @de_41
    @de_41 3 года назад +2

    Anyone run one of these recently? i've seen mixed reviews.

  • @chadgardee1496
    @chadgardee1496 4 года назад +1

    You think these amps will get hot easy for being small?

  • @paulespino6462
    @paulespino6462 3 года назад +1

    Can anyone confirm if those are 2 awg cables he has hooked up for the power and ground?
    Also, what size fuse would you need to run this beast of an amp?

  • @TRUSTY901
    @TRUSTY901 2 года назад

    On the RCA side which one do i plug in the red and white?

  • @skyblockjake
    @skyblockjake 4 года назад

    I'm curious about how the SFB-8000D.1 compares to the B2 audio Riot 7500D.1

  • @danielmcbride4828
    @danielmcbride4828 4 года назад +1

    I'd like to hear the difference between the full Bridge amps and the Korean amps

    • @MFFOG
      @MFFOG 4 года назад +1

      That is one of my main concerns as well...subwoofer sound quality vs that of a half bridge design. And also longevity of these vs Korean board.
      If I wanted to get one to run some nice mids and tweets I would do it in a heartbeat...but I need clean, rich, deep bass.

    • @superchile9640
      @superchile9640 3 года назад

      I don't hear any difference from my JL 1000/1. I got the SFB 3000d to run at 4 ohms as the JL was just a large footprint. JL was ran at 4 ohms as well.

  • @Bill-Tech
    @Bill-Tech 4 года назад +1

    I want to see a dynamic test is there any Headroom or is it on the flat side??

    • @ThisGuyDrives
      @ThisGuyDrives 4 года назад

      He thinks dynamic test is stupid, so he doesn’t do it.

  • @salimsopari
    @salimsopari Год назад

    i have the SFB1000D and its NUTSSS

  • @Krotos1970
    @Krotos1970 2 года назад

    When are you going dyno the SAEv3?, I purchased a 2500 for black friday, I tested it next to the D4S JP23v2 and the SAEv3 seemed a little louder at same volume, was wondering if it's safe to run at half ohm?

  • @LSXMILLER
    @LSXMILLER 3 года назад

    I'm running my head unit lpf crossover where should I set lpf on amp 🤔 80hz to 20khz

  • @fabiandiaz6151
    @fabiandiaz6151 4 месяца назад

    What would happen if I run it with 4 gauge wire and 12 guage speaker wire

  • @meekturner400
    @meekturner400 4 года назад +1

    Hey man love the knowledge i have a question I wanna run the sfb8k and I have 2 American bass 18" hd1 subs will that amp work I know I could run 2 amps 1 per sub but will it work with one big amp

  • @robertnorwood8712
    @robertnorwood8712 3 года назад +3

    Drop it 13.8 volts and see what it does in real world car voltage. Not almost 15 volts.

  • @keithcorry1052
    @keithcorry1052 4 года назад

    Is a 1 sundown 1500rms sub and 1500 watt amp to much power to run in my 06 mustang gt ?

  • @eastcoastjay1983
    @eastcoastjay1983 2 года назад

    How hot do they get if you’re using them for longer than 20min?

  • @paulmorabito7040
    @paulmorabito7040 4 года назад

    Are the muti-channel bridgable? Love the new line (salt).Thank you

  • @Yellow1000canam
    @Yellow1000canam 4 года назад

    Are thee auto on off like the sa600 ?

  • @hifiman4562
    @hifiman4562 4 года назад +3

    Msrp is $239 but Down4Sound has it at $299?

  • @derekvasile6127
    @derekvasile6127 4 года назад

    Great numbers on a little amp👍👍

  • @906lane
    @906lane 4 года назад

    What is the difference between these amps and your traditional amps you sale already, sorry noob question?

  • @Supercharged1976
    @Supercharged1976 4 года назад +2

    I'm starting to see a pattern with the SFB line. Are you guys naming them (1000, 1500, 3000, ect.) on the 2 ohm numbers? ;-)

    • @gianstevens7918
      @gianstevens7918 4 года назад

      Exactly, these amps are rated too low in my opinion. It's one thing if your amps do over rated, but reaching rated power at 2 ohms is just way too conservative imho.

  • @MoparStephen
    @MoparStephen 4 года назад +2

    Very curious to see how they hold up to long playing times.

    • @douglaskirchner6296
      @douglaskirchner6296 4 года назад +1

      So far so good on the 3k

    • @ThisGuyDrives
      @ThisGuyDrives 4 года назад +2

      So, Sundown is just going to sell a line of amps that don’t hold up to long play times?

    • @MoparStephen
      @MoparStephen 4 года назад +2

      @@ThisGuyDrives Wasn't an accusation. But I have several Crown amps for home audio. My ComTech 1610 will do over 1600 watts into 4 ohms, or 800 watts *2 into 8 ohms. It weighs 58 pounds and has 24 TO-3 style output transistors. It will also do this 24/7 not for 5 minute bursts. I get a little curious about amps that do the same power into ridiculous car audio loads but weigh a few pounds, have no thermal mass for heat dissipation and insanely tiny output transistors. It pulled over 100 Amps at 14.4 volts. Put that power into a light bulb or a metal bar and see hot it gets.

  • @carlosleal946
    @carlosleal946 3 года назад

    There’s only HPF, LPF, Gain and Level. Which one can you use as subsonic?

  • @1-Six-dee
    @1-Six-dee 4 года назад

    It would be nice if u got that fluke with the detachable display

  • @goneblown2
    @goneblown2 4 года назад

    What does it do uncertified at 1 ohm?

  • @trilledskadesman3922
    @trilledskadesman3922 3 года назад

    Will this slap two alpine type Rs ? Swr1242d

  • @mtx247
    @mtx247 4 года назад +2

    You sure that's not the 2K with the wrong stickers? 😂😂😂

  • @jasonneal
    @jasonneal 4 года назад

    I love seeing guys on Facebook claiming they running these at .5 all day long

  • @Opel_Corsa_Subwoofer
    @Opel_Corsa_Subwoofer 2 года назад

    What fuse do i need?

  • @cowboyexecution3642
    @cowboyexecution3642 4 года назад +1

    Beast

  • @josesalazar8976
    @josesalazar8976 3 года назад

    I have 2 12s alpine type s u thing it can handle it

  • @DrewStone0515
    @DrewStone0515 4 года назад +1

    I say 2200 @1ohm.... holy shit I was 1 watt off!!!

  • @ronaldgalvizo3504
    @ronaldgalvizo3504 3 года назад

    Is it possible to run midrange speakers and and subwoofer at the same time sir?
    Please reply me soon..
    I want to buy for my scooter..
    Thank you..
    Watching from manila Philippines

  • @lawrenceyoung9669
    @lawrenceyoung9669 Год назад

    Is this rms watts

  • @jameswilson7322
    @jameswilson7322 4 года назад

    Test the 4 channel SFB200.4D ..?

  • @jaystevenson6485
    @jaystevenson6485 4 года назад

    I am phone ilitterate...I didn't know you could subscribe without paying something. I have watched your videos for months now and am impressed. Actually drove to your old address and no one was there. Have heard from a lot of people sundown is the best. I had to have speakers and amps for myself. Please tell me if this set up will work. Sa 22s....v2 d4's and a sfb 5000d amp. Please reply

  • @ajayahuja9
    @ajayahuja9 4 года назад +1

    Does anyone own this? Any thoughts on the sq side? Do these also sound as good as the others in the sundown stable?

    • @NoiseOrdinance704
      @NoiseOrdinance704 3 года назад +1

      Tbh going from my Rockford bdcp 1500 to a sfb 2000 I can’t hear too much of a difference if any in sound quality and with more power now it’s noticeably louder

    • @itzsace2733
      @itzsace2733 3 года назад

      U ever got it?

  • @MyBlowncobra
    @MyBlowncobra 4 года назад

    I got 81% still good

  • @DEADEND430PRODUCTIONS
    @DEADEND430PRODUCTIONS 2 года назад

    The money question is does this thing overheat or get hot????

    • @Xilent1
      @Xilent1 Год назад

      From my research. It gets warm and not hot. Perfect for down south

  • @atmosphericpressure3560
    @atmosphericpressure3560 4 года назад +1

    That Taramps American style!

  • @jackfrakes2592
    @jackfrakes2592 4 года назад

    do you know how much the amplifier cost

  • @corymcbride5394
    @corymcbride5394 4 года назад

    Damn great numbers

  • @donellis5005
    @donellis5005 4 года назад +1

    Wait a minute so I can run my W7 on this amp?

  • @Coopdeville0624
    @Coopdeville0624 4 года назад

    Can you please tell me what suprise me i have to get to possibly get one of them nightshades?

    • @________GHOST________
      @________GHOST________ 4 года назад +2

      It would not be a suprise if they tell you which they will not do try again :D LOL

    • @ThisGuyDrives
      @ThisGuyDrives 4 года назад +1

      NS not happening.

  • @jeterplaysshort
    @jeterplaysshort 4 года назад +2

    Derek man rattle the web development team to update the web page we need info

    • @UnofficialAudio
      @UnofficialAudio  4 года назад +1

      We have someone working on it but it's been a slow process

    • @jeterplaysshort
      @jeterplaysshort 4 года назад

      @@UnofficialAudio thanks Derek I got two new sld 12s coming wanted to start building enclosures need some specs

  • @terrygriffey6643
    @terrygriffey6643 4 года назад +1

    I think it will do more than 1500watts

  • @rexnhogz
    @rexnhogz 4 года назад

    what is dynamic?

  • @trxyr6613
    @trxyr6613 2 года назад

    why do i clip with this amp then?? anyone know? if it can handle over 1500 at 1ohm why am i clipping

  • @eugene9941
    @eugene9941 4 года назад +2

    With so much power, is there going to be any issues of overheating?

    • @dknights6414
      @dknights6414 3 года назад

      No, since you have the headroom you shouldn’t have to push this amp to the limit.

  • @benh1261
    @benh1261 4 года назад

    Dam how can I get one of them bass knobs with the clip light? My 3000 sfb I just bought didn’t even come with that. Really though I’ve been lookin for one if they work with the 3000sfb ?

    • @RomaVilla
      @RomaVilla 4 года назад +1

      They all work as long as they are Sun down series. I got an extra bass knob for sale in case you interested. Sundown sent me extra one

    • @superchile9640
      @superchile9640 3 года назад

      My SFB 3000D didn't come with one either. Also it has the regular style rca inputs and only 1 speaker output.

  • @Lordvoldemore
    @Lordvoldemore 3 года назад +2

    I’m curious to see how much power it makes on 12v

    • @Cap1215
      @Cap1215 3 года назад

      Why would you run a amp on 12v?

    • @soundofbass6842
      @soundofbass6842 2 года назад

      @@Cap1215 powersupply most likely

  • @delleyduncan1000
    @delleyduncan1000 4 года назад

    I know it's not a Brazilian but it has the same application meaning enturnal parts.but y it take so much volts to get it's full potential (14.4) and Brazilian does rated at about 12.6 to 13 volts .note am not a really big fan of Brazilian but just saying.

    • @dennycote6339
      @dennycote6339 4 года назад

      The term you are looking for is topology. These amps are a full bridge topology. Theyre made in China.

    • @ThisGuyDrives
      @ThisGuyDrives 4 года назад +1

      Taramps is proof people will run any shit they can.

    • @MFFOG
      @MFFOG 4 года назад

      These amps are doing a good bit OVER the rating at 14.4 or less...so what's the problem? Sounds like the same power to me, but Chinese made and not Brazilian..with Sundown levels of quality control. Brazil didnt invent the full bridge design, and Jacob isn't gonna let anything that's straight BS hit shelves with that Sundown logo on there. That would be suicide for the brand. I'm sure it took a ton of time and research and back and forth deliberating about even attempting a Sundown full bridge amp. So I would bet it's one of the best full bridge amps ever made.

  • @getfresh25
    @getfresh25 4 года назад +1

    Does it come in 2 ohm

    • @dystinkuished3642
      @dystinkuished3642 4 года назад +1

      Amps don’t come in “ohms”, the load is what you put to it with your subs. If you have two dual 2 ohm subs with the voice coils wired in a series, and then parallel the subs together that will be a 2 ohm load.

  • @VCR1117
    @VCR1117 4 года назад

    Anyone know this amp vs Skar SKV2 1500.1D ? What is the major difference? Skar also has the RP line which is supposed to be cheaper watts but also less sound quality

    • @superchile9640
      @superchile9640 3 года назад

      The Skar RP amps get really warm. Really warm. They sound good tho.

  • @10krms8
    @10krms8 4 года назад

    Around whats going to b the price on the sfb 13k

  • @evanfield580
    @evanfield580 4 года назад

    It did 101w more than I thought it would do

  • @Sawyer0608
    @Sawyer0608 4 года назад

    Straight up a Skar 2k killer

  • @antawains
    @antawains 4 года назад

    Nice power

  • @BenaresDarkness
    @BenaresDarkness 4 года назад

    What's up with your camera?

    • @erictheboringone5292
      @erictheboringone5292 4 года назад

      That’s not the camera. It’s some type of file corruption that most likely occurred in his editing software or during the render process onto the RUclips. Most likely during editing though.

  • @steffonfermin-rivers3677
    @steffonfermin-rivers3677 4 года назад

    I've been trying to figure out if I wired mine properly. I have an SA Rev3 10inch dual 2 (750rms) with an SFB-1500d. I wired the speaker (+ with +) & (- with -) but my amp clips with the gain being only 1/4 up. Honestly I feel as though I should get more power, am I right anyone?

    • @russh7040
      @russh7040 4 года назад

      Somethings wired wrong!

    • @RSmith-qv3jp
      @RSmith-qv3jp 4 года назад

      Im having the same issue with this amp.

  • @douglaskirchner6296
    @douglaskirchner6296 4 года назад +1

    Will the knob with the clip light be available for the og sfb 3k for purchase

    • @puresesh7985
      @puresesh7985 4 года назад +1

      Wondering the same thing here man

    • @RomaVilla
      @RomaVilla 4 года назад

      I got an extra bass knob for these series amps for sale.

  • @jassimmalalla8996
    @jassimmalalla8996 3 года назад

    Hi i can use for one only subwoofers skar EVL 2500watt 1250rms 4oh

  • @cameronmochizuki1784
    @cameronmochizuki1784 4 года назад

    Does anyone know the size fuse for the 1500

  • @iamthemaninde
    @iamthemaninde 4 года назад

    These kids these days only know COMMON CORE , you better stick with your numbers Derrick 😂😂😂

  • @joshholden8561
    @joshholden8561 3 года назад

    That fan is in a bad place it need to be on the side to blow thru the amp not blow up towards the bottom plate those caps arent that big either

  • @haatch999
    @haatch999 4 года назад

    Lets go 2.1k from a 1500 my guess

  • @visockiss
    @visockiss 3 года назад +1

    Nice amp, what happen if power drop to 12.6v ? Will it burn or still ok? Thanks

  • @leonardogutierrez2244
    @leonardogutierrez2244 3 года назад

    i have this amplifier and its been working great and then out of nowhere yesterday it went into protection mode, any solutions on how to fix this?