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Jeff Stetsom

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Everything posted by Jeff Stetsom

  1. Jeff Stetsom

    Stetsom 1k5h test

    hey there this amp is a 12volts amplifier it only work between 9v to 15v max
  2. this post is very important for daily system This is a lil formula that i use to first get the batteries for the amplifier If you are buying an amplifier like the 5k2e lets say you are going to try to keep your voltage around 13.5 volts to try make over 5000rms lil crazy formula, too make 5000rm at 13.5 volts 5000/13.5 = 370 you will need more than 370 amps continuous on your system i would rounded up and use 4 battery that each of them give you around 100ah + and a alternator to keep up the voltage and charger them !!! ( charger battery you never should have more than 2.4 to 2.5 volts on each cell, its around 14.4 volts ) high voltage can damage your batteries. lose performance on the current ( the most important ) so you can make clean power for your subs for nice time playing not a 30 secs demo You also need to that every SUB needs a 3db headroom to handle varies peak of tone which is very common on music, this 3db is twice much of power, im not telling you to put over twice much power on the subwoofer but to have a amplifier that gives twices much more power that you subs needs This will eliminate part of the power compression, when the subs voice coils rise with temperature leading to reducing the efficiency on the sub to 2db The lowest impedance wont help you to make more power (clean) like 0.5 0.35 this only will kill your batteries faster, this EITHER IS THE RIGHT WAY to fight your impedance rise To fight impedance rise, is not voltage is current !!! amps because the amplifier will need more power to produce more specially on low tones Amplifiers are equipments made to amplify the power you have (battery or power supply) to the subs If you dont have power (battery ) the amplifier will not make miracles, you cant go against physics if you this 3db room of power on your system even when you play low tone the amplifier and your electrical system will have power to them because explain better when you sub hits at 40hz the power consumption is bigger than 60hz, with this vary tones on the music, you neither need a unlimited power source (like a power supply) to give you power for the whole song because the batteries are limited source of power, after you subs hits 10 times at 40hz your batteries wont have the same performance and need your alternator are gonna keep up because the power consumption is bigger to make continuous power then with a setup with a 3db headroom on power, you subs will be hitting hard all day long because your power consumption is less than what you making this 3db rule i lot of company in brazil have this in their subs manuals, ( they recommended that so you can get most outta their equipment and be happy, you dont see amplifiers company doing this because it makes a lot of people think this amplifiers dont make power they are telling to use one with twice much power, you know im just letting you guys know how to setup and get the most outta the amplifiers and subs, because there is a lots facts that makes you amplifier make less power Ex: I got this store owner for more than 10 year on the market, he wanted to buy a 14k2e and install on a truck and i asked him about the electrical system for the amplifier this is his answer im gonna install two Powermaster D3100 which it gives 5000 watts each that should be enough to make 10000 watts This is the secret on the electrical system for your car always make more power than you need so you can keep it up nowadays with big amplifier its hard for you to keep it up with the power consumption on the big amplifier you neither need a lot of batteries or get a power supply if there is no power produce to keep up with the consumption of the amplifier first the current is gonna go down and efficiency too ( the amplifier will start to get hot) then the voltage and distortion will be produce and kill the coils on your subs !! This applies to any amplifier, this is physics im writing this out because a lot of people a asking this i hope this helps, im not much of a teacher i cant explain stuff well but here it is having any question just let me know
  3. Jeff Stetsom

    Stetsom Vemon Line

    HERE ARE OUR NEW LINE ANY QUESTIONS ?????????
  4. Jeff Stetsom

    ???

    Hello there, Im sorry for the delay, well SSa and C a C o both of them are really good forums that you can get you questions answered But SSA will be the official in the future, not official yet
  5. Jeff Stetsom

    About Stetsom Amplifiers

    sir i am trying to find out the price on your 600.4 and other 4 channel amps. i have the 2k6 and really like it, so now i need matching one for my components. please could you help me out? Please send me an email if you are a competitor so i can get you the competitor other than that The SSA store should have the 600.4 for sale Im gonna talk to them about it thank you
  6. Jeff Stetsom

    Stetsom Vemon Line

    Well Right i dont have any pictures But this is from the Manual and you can get a pretty good idea from it
  7. Jeff Stetsom

    Stetsom Vemon Line

    thank you
  8. Jeff Stetsom

    About Stetsom Amplifiers

    Im going to try to do that for you guys !!! first i need to get a 7k lol I dont have any with me, sold mine and upgrade to 14k but its possible to do this tests I will let you know thank you
  9. Jeff Stetsom

    About Stetsom Amplifiers

    Well, Im not here to compare our product to any brand !!! But Like i post on the Beginning WE ARE THE BIGGEST car audio factory in South America Im not gonna mention our sales per month !!! With our technology we have accomplish many titles and world records Murilo says that because that something we dont have in our amplifier by that doenst mean that we dont have the power !!!
  10. Jeff Stetsom

    Nice amp for the size

    Thank you for your post Stetsom never will give any trouble with the right installation
  11. Jeff Stetsom

    stetsom 14k's

    Bruce more videos !!!
  12. Jeff Stetsom

    The Right Electrical System for your Stetsom

    Please let me know if i missed something !!! Im here to help and to make it simple so people can understand what everything works !! thank you
  13. Jeff Stetsom

    About Stetsom Amplifiers

    me too, interesting read Im doing a better post for the mids and high amplifier !!! i talked about them at the end the first post !!
  14. Jeff Stetsom

    stetsom 14k's

    Nice post Bruce !!! very loud car under 10k rms !!! beautiful setup !!!
  15. Jeff Stetsom

    Stetsom 1k5h test

    here are some number that we got some the 1k5h they are real close to what it is !!!! 1K5 – 1 OHM 1 OHM – 83% 2 OHMS – 94% 4 OHMS – 96% 1K5 – 2 OHMS 2 OHMS – 84% 4 OHMS - 91% 8 OHMS - 94% Are these lil amplifier efficient or what ?? I love them
  16. here are some real close number to what the 1k5h gives you on efficiency (and thermal protection breaking, this is not easy to happen ) 1K5 – 1 OHM 1 OHM – 83% 2 OHMS – 94% 4 OHMS – 96% 1K5 – 2 OHMS 2 OHMS – 84% 4 OHMS - 91% 8 OHMS - 94%
  17. Jeff Stetsom

    About Stetsom Amplifiers

    I dont really get your question are you talking about the 1k5h ?? which has the half bridged technology >? Any of them..what are they switching at. You have a frequency in which the gates are opening or closing at..on the fets and/or transistors on the output stage (You can see this on an o-scope if you do not know, you just have to get in the range that they are operating at). The only amplifier in the world that is truly an amplifier is a class A, everything else switches via gates on a mosfet or a transistor..I want to know the operating frequency of that device. 100kHz? 120kHz? Higher? The smaller transformers and parts that are used the higher and harder the gates are being switched on fets/transistors..I want to know what this frequency range is. Well i understand now, i was just making sure its not everyone nowadays that ask me that for the power supply is 26khz and the to the channels (fets) is 104khz on the big models and for the 1k5h is 180khz and the power supply 26khz as you see our amplifier have a big frenquecy respond im pretty sure you asked because you didnt believe the frequency response but Stetsom is the only one the market with this frequency response high like if you wanna compare like Soundigital Their 19Khz for the power supply and e 38Khz for the channels Their amps dont response the frenquency they say they do Everyone knows that in brazil Like for mid bass they are almost head to head on technology and power but when is about music is we are the best If you wanna listen to music, you buy our amplifiers Not exactly. I'll go over everything in the email that I'm going to compile and explain things clearly over the next few days. There is no issue with making a full range class D amplifier... you do not have to prove any of that to me. However there are issues that you are not seeing here yet that I see every single day. I've been very very very very scientific about collecting data and how I've been testing things and looking at things. It keeps pointing back to the same issue because the are zero problems in a class A, or A/B power setup where things are not modulated and are not switched. (A/B is switched to an extent..but not like a class D or an H bridge) Again, I'll compile an email and send it to you. I want to know what is going on with these things and why it is being done like it is done because issues keep popping up with a certain group of amplifiers both Korean, Chinese, and from Brazil...and it is all because everybody is trying to play the efficiency game, taking a blind eye to everything else. I'll shoot you an email when I have on properly compiled and we'll go over the information. If you choose not to talk about the situation at hand that's fine, either way it will confirm my findings. Thanks! Sound good to me !!! i will be waiting for your email
  18. Jeff Stetsom

    Stetsom Joins SSA | Store & Forum

    More amplifier add to the Store nice !!!!
  19. Jeff Stetsom

    About Stetsom Amplifiers

    Did you have a 16volts one ???? on music or burp ?? and this is a old amplifier right now we have about 3 generations up to this one a lot of stuff changed and its not about the voltage !!! its all about the current !!!! what was the current drawing on the amplifier ??? This goes for any brand !!! amplifier are an equipment that just amplifier the power that you have (batteries and power supply are the power source ) If you didnt have enough current on your system the amp mind got the point and it was on the limited of Ac volts of it but if you had a lil more of current you could get more power to it I have seem a lil car that we added a battery on the system and before we are clamping around 50 ac volts with 26 amps, after 52 ac volts with 35 amps !!! just add one more batteries difference more than 500 rms !!!! To get also the right number of power, i depends to on the frequency that you are testing all brand and we do also rated at amplifier at 100hz The amplifier rated power are rated at 100hz, when you do dont on frequency like 30 to 35hz the efficiency on the amplifier wont be the same and of course you will make less power, that goes to any amplifier Im going to sit here and type a bunch of lies to you my friend, like a lot of companies do but im here to assist you to understand how everything works !!! never expected to buy a amplifier of 5000rms and get 5000rms out of it !!! you would go against physics, and everything is about physics on this area man !!!
  20. Jeff Stetsom

    About Stetsom Amplifiers

    I dont really get your question are you talking about the 1k5h ?? which has the half bridged technology >? Any of them..what are they switching at. You have a frequency in which the gates are opening or closing at..on the fets and/or transistors on the output stage (You can see this on an o-scope if you do not know, you just have to get in the range that they are operating at). The only amplifier in the world that is truly an amplifier is a class A, everything else switches via gates on a mosfet or a transistor..I want to know the operating frequency of that device. 100kHz? 120kHz? Higher? The smaller transformers and parts that are used the higher and harder the gates are being switched on fets/transistors..I want to know what this frequency range is. Well i understand now, i was just making sure its not everyone nowadays that ask me that for the power supply is 26khz and the to the channels (fets) is 104khz on the big models and for the 1k5h is 180khz and the power supply 26khz as you see our amplifier have a big frenquecy respond im pretty sure you asked because you didnt believe the frequency response but Stetsom is the only one the market with this frequency response high like if you wanna compare like Soundigital Their 19Khz for the power supply and e 38Khz for the channels Their amps dont response the frenquency they say they do Everyone knows that in brazil Like for mid bass they are almost head to head on technology and power but when is about music is we are the best If you wanna listen to music, you buy our amplifiers
  21. Jeff Stetsom

    About Stetsom Amplifiers

    The 14k2e is not be use with with a 0 gauge cable (about 45mm) its on the manual, we recommenced to run at least 70mm ( which is about 2.75 gauge ) and for the 9k2d and 7k2e its recommend to run 50mm (which is about (1.2gauges) Well, we follow the brazilian market, on the production of our amplifier and here is a testing video for the 14k2e is so good but we are working on to do another one 14k2e Test 1 14k2e test 2 Thank you and you can run about 450 amps on a single 0 gauge wire ( real 0 gauge wire ) not cheap stuff
  22. Jeff Stetsom

    About Stetsom Amplifiers

    whats the impedance rise your have ??? and do you have the eletrical system for the amplifier ??? Because i got competitor and he gets 8k rms on 3.8ohms !!! and that a lot of power how are you measuring it ?? can you give the details ?? like Ac votls and amps ac coming outta the amplifier and also the voltage you are palying and the current draw on the amplifier ?? and i will tell you why, you are getting just 8k to 9k rms on the 14k
  23. Jeff Stetsom

    About Stetsom Amplifiers

    Hey there, Whats the old model that you are talking about ?? They are attached just like the way they were before, but we just add more supports And about your question about rated power can you please rephrase it For instance the older vulcan 7kd that says SPL competition on it, are the newer amps attached too the heat sink the same why that amp is? On a setup that has the electrical to keep the voltage the amp is seeing from dropping below 12 volts does your 4k do 4000 watts? Does the 7k really do 7000 watts? Does the 14k really do 14000 watts? Does the 19k really do 19000 watts? i dont really get your question The amplifier are made and tested to give you that power on the our specs you can check out our website and all the specs on the amplifier are there www.stetsom.com Thank you
  24. Jeff Stetsom

    Stetsom 1k5h test

    today at night i will post about our new release and im pretty sure everyone is going to love it you can use it in your installation for the tweeters
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