Good video. Thanks you definitely know what you’re talking about. Not too many people talk about rise and efficiency, could you do a video on cabin frequency? Thanks
@caraudiolab
Жыл бұрын
I love the suggestion! It is on my list, but since you asked for it, I will bump it up on the list! Let me know what topics on cabin frequency you are interested in so I cab be sure to cover those! I already have several things to talk about when it comes to cabin frequency but want to make sure to cover any questions you bring up! After your response, give me about a week to put it together, thank you!
@SoberBassHead
Жыл бұрын
@@caraudiolab definitely, so my cabin frequency is 28hz but my box tune is 31.5. Sub is a NSv5 12, vehicle is a 2016 Ford Focus ST.
@caraudiolab
Жыл бұрын
I just did a video about cabin peak resonance/frequency, I hope that helps with any questions you may have! Also, I am surprised your vehicle peaks so low, that is very low for such a small vehicle. My 2008 Ford Focus peaked at 52 hertz. Cheers!
@erics.6275
Жыл бұрын
Thanks for the explanation. I was wondering how to reduce impedance/box rise and how doubling box size or doubling subwoofer count would effect the output of my amp. Sounds like it would increase my efficiency!
@caraudiolab
Жыл бұрын
Increasing box size causes rise which makes it more efficient, has long as your subs still have proper loading. If you go to big, the subs flop around, which causes several problems but can decrease efficiency as well.
@RandyRossundercaste
Жыл бұрын
I've been thinking about this recently. How can I get the most efficiency from my amp. I have a dual 2 ohm subwoofer so I was thinking about running 4 ohm. My amp is rated 1000 Watts at 4 Ohms. I hear MB enclosures talk about dampening Factor and sound quality being better at higher ohms but I've seen people argue that he's not thinking about it correctly. Have you seen any of his content talking about that on KZitem? don't know if I'm making sense the way I'm describing it LOL it would be cool to see a breakdown going into this the way you describe things. I have an sql 12 sealed in 1cuft.
@RandyRossundercaste
Жыл бұрын
Mb Enclosures is going to do a test running his subs at 1ohm vs 4ohm to see the difference. Overall I'm looking for the most efficient setup to save on beefing up electrical. Especially in a sealed box. I wanted a 10k watt build but life beat me down lol
@caraudiolab
Жыл бұрын
If you wire at 1 ohm, you will rise to probably 2 or 3 at the lowest and maybe over 10 at the highest. Plus the dampening rating of amps today is very high. This was a concern from the 90's when it did make a big difference because those amps had low ratings. I wouldn't worry about the dampening rating unless yours is particularly low. I can understand about the power issue, so maybe running it at 4 ohms will work for you. Just remember, that it will still rise to around 10 at the low and then maybe 30+ at the high. So, you won't be pushing much power.
@RandyRossundercaste
Жыл бұрын
@@caraudiolab I was curious why mb was the only one I saw talking about it like that. If 4ohms is too quiet for me I'm switching over to 1 ohm in a second. Trying to convince myself lower output is what I want😭
@caraudiolab
Жыл бұрын
@@RandyRossundercaste I am currently working on a video where I am goin go compare the series vs. parallel. If all goes well, it should be out in the next day or two. I am going to reveal some secrets in this video for you. I think this will help.... or make you think that much more about it all! :)
@smurfeco2.358
Жыл бұрын
He is correct my salt 1.5 only puts out 400 rms @ 12v 4ohms . And it sounds wayyyyyyy clear Than my sia 2500 . Which is making 2000@4ohms my salt will hit the lows so good . Sia doesn't its just to much power but it gets everything shaking.
@gregblau8082
Жыл бұрын
I'm curious about impedance change going away from tuning frequency and if that's an issue with smart amps.
@caraudiolab
Жыл бұрын
There is a trend to make amps that fight impedance rise. So, they still put out good power even as rise happens. You are probably most familiar with the SMART series for this. However, some half bridge do this as well. I know some Rockford amps do this. They may put out 1,500 amps at 1 ohm and then 1,200 watts at 2 ohms. I am not sure if that is the exact numbers, but that represents a close figure. As you move up from tuning, the impedance will rise. You might be wired at 1 ohm at the amp, at tuning be at 2 ohms(lets say 32 hertz) and then be at 12 ohms at peak (lets say at 50 hertz), then the impedance will drop again going higher (lets say 1.7 ohms at 70 hertz). Smart amps typically treat either .5 to 2 ohms (bass Taramps SMART version) with the same power or 1 to 2 ohms (regular SMART Taramps version) at the same power. Then, they start to drop off like regular half bridge amps. Yes, they will put out less power at high ohms (like 10) but so does every other amp on the market, that is normal. Plus, if the amp put out max power all the time, it would burn up in minutes. The rise in impedance as frequency changes helps keep amps cool. Stay tuned, I plan on covering impedance rise in greater depth. I will probably do a series on it to help people understand why it happens and how different box aspects change the impedance curve, either for spl or for bandwidth.
@2000Rpz
Жыл бұрын
I honestly have not noticed to be the case, I understand that u will be more efficient with box rise for instance let’s say u hit 140 with 3x box rise pulling 1000w, the same system with only 2x box rise which will give 50% more power (let’s say), it would hit 141, which for 50% more power is not a huge improvement, but it is still louder, this is my understanding, but I’m not anywhere near and expert so I easily can be wrong
@caraudiolab
Жыл бұрын
Think of a bigger vs. smaller box as an example. The bigger box has a softer air spring inside so it allows the sub to move more. Since the sub moves more, it has more impedance rise. But also since the sub moves more, it is also louder at the same time. There are always ways, if you know what you are doing, to reduce impedance some and increase power usage and actually get louder too. But these typically have trade offs and you end up loosing something, like bandwidth. Which means you still loose db over a wide range but you managed to increase it at one frequency.
@ceciljones1248
Жыл бұрын
I been doing some experimenting i have 4 different enclosures in my garage?What I notice when I put my sundown xv3 12s in a 5.50 enclosure they read 2.5 ohms then when I put them in 4.50 enclosure the ohms was 1.9 so that's telling us that a very large enclosure impedance rise higher than a smaller enclosure?
@caraudiolab
Жыл бұрын
In general, yes that is correct. You will have more rise and be more efficient with a bigger box. Be careful, too big of a box can damage your sub as well, depending on the power you are pushing.
@ceciljones1248
Жыл бұрын
@caraudiolab Yeah you are right I have two 15s that I put in a enclosure that was. 25 smaller than recommended and they was barely moving with the volume half way up but they were loud and most prefab enclosures are a little bit smaller than a regular one
@ceciljones1248
Жыл бұрын
@caraudiolab On another note if you do go a little bit bigger than recommend that subsonic filter better be set correctly if not you will have some serious problems 😉
@caraudiolab
Жыл бұрын
@@ceciljones1248 Agreed! You can also shrink the port to the smallest possible size before chuffing. That will help add control below tuning.
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