The RIGHT WAY to wire subwoofers to a monoblock amplifier
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- เผยแพร่เมื่อ 28 มิ.ย. 2022
- If you are installing a subwoofer for a custom car audio system you are likely using a single channel "monoblock" amplifier. Some of these amplifiers will have two sets of output connections. Why is this? Do we need to use two subwoofers? Do we need to bridge the monoblock amplifier outputs? How do we wire one subwoofer to a mono block amp? Let's explore!
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I am so happy that you made this video.
As a car audio installer, I had a couple customers that were unwilling to take my word, even when I showed them the exact demonstration of continuity that you showed, that I had correctly installed their amp. One guy was absolutely convinced that his subs were only getting half the power because he was only using half the amp. I think that at my boss's direction I actually ran a second set of speaker wires to his box just to apease him.
My MECP advanced certification wouldn't convince these people that I knew what I was talking about, but I bet that a popular TH-cam video that confirmed it would do the trick.
Happy to help! I don't know why guys always feel like the car audio shop is trying to pull one over on them... although I did have a guy today comment that "he's only recommending fuses because he sells them, you don't need fuses on wiring" so guess us YT guys can't be trusted either... 🙄🙄🙄
@@CarAudioFabrication fuses are for us peasants who cant afford to just buy a new car when our current one sets on fire
Use 4-channel home-audio wire, with 4 wires wrapped in a single cover. That way you can use both both connectors on the sub amp, plus whatever gauge fits exactly, times two, is likely thick enough. Your less observant customers will think the 4-stranded wire was specially made for sub amps. 🤣
yeah just add that second pair of wires, a 4-terminal plate and connect two wires to the air inside the box lol. remember, 15 minutes on youtube means you know more than experienced techs :)
So dont wire my subs like the thumbnail? Lol
🤣🤣🤣🤣🤣🤣🤣
I retired from 12v after 35 yrs,these amps remind me of 80s amps,i love it,memories of my beginner years with craig,kraco,sherwood,rockford,etc.love this channel 🤘
i feel old knowing these brands... thx, lol!
Can't forget the greatest brand of all time.......Pyramid!
After watching 15 videos this one hit every note I needed !!!
I just bought a Polk mm1 10inch 4ohmDVC subwoofer and in the manual there is a diagram showing connection to a single pair of terminals on the subwoofer, now with that connection you will only be at 4 ohms but it can be done
Just received my Lc1.1500 yesterday! Been dreaming of this day for a year. Im working with you now on a custom subwoofer box for my SQ5. Checking my email like every hour 😅 Always love your content, thanks for all the info!
Hi Kodi, I wrote a comment that my LC1-1.1500’s cooling fan is always on when powered. Like to hear from you if yours does the same. Feedback of a fellow owner would be welcome.
@@umtbozkr2358 I mean, the Amp has to stay cool but I guess if it's loud enough to hear, it can be annoying. I've used cheaper Amp before and the fans were audible and always on, but on my Audiocontrol or Phoenix gold, never really heard them.
Dream big bro
@@umtbozkr2358 d 1200 fan runs w amp. Quietly, notic d the amp gets warm w no load even. Likely why.
@@dwilde649 I’m sorry, didn’t understand your comment D Wilde. The amp works perfect and delivers a good performance. Only the fan is constantly on and it’s not the most quiet fan. Normally I ran my woofer with a bridged Steg K2.03 with about 1000w RMS. When the fan went on you couldn’t hear it running. I replaced it by the Audio Control because it draws less current because it’s a class d amp. A class d amp shouldn’t get that hot; even without any load it gets hot.
Great video. VERY THOROUGH! Exactly what I was looking for when searching for the right answer! Thank you so much for some very useful information!
Please do a video on the key loc...I need to run 2 in my 21 civic hatchback and I just love to here you describe things. You are such a help
Man, what I do without your videos....
Here's a sub, good job bro very good content. Keep them videos coming👏👍👏👏👍
I had to google this 2 hours before you uploaded for a Mosconi 1000.1, funny coincidence. You gave a lot more detail than the answer I found earlier, thank you!
Answered my question exactly!
Thanks Mark, that did clear up a couple of thins. Love Audio Control.
Great info., thanks!
Thanks again Mark!
Thank you so much, big like to you, very well explained
Good video I had a question, if I have a secondary battery in the trunk do I run my amp that's in the trunk the 2 ground wires to the secondary battery negative terminal post ?
This is actually a very informative video.
Hey what are the best rca wires for input ?? And how many do u need ???
That thumbnail made me watch lol I'm glad you weren't telling people to wire it like that lol
Great video! Quick Question Can you tell me will this amp work on the tesla 16 volt battery system Im looking to and a sub but the last amp I used kept dieing out the 16 volt battery.
Great video on something very confusing when you’re newer to car audio!! 👍🏻 I do personally prefer to run one wire pair to the sub then run the other wire at the sub (Parallel). Instead of two wires back to the sub.
Another informative video. Thanks man!!!
Im really glad u posted this vid,i have a different class D monoblock that has 2 terminal like this and my multi meter is or was older and mu kid attempted to ohm a live 120vAc circuit and it became um melted so was concerned about the ohm load to my amplifier which i usually keep at 2 ohms though i found the amp is 1 ohm stable but my question answered thank u
I have a mono block amp but I have 2 Alpine Type E DVC. My question is how do I wire them inside the enclosure ? I understand that the two pairs of outputs are the same thing. I just need to know how the subs inside the box are supposed to be wired ?
So I was wondering I installed two ten inch 300 watt subs in my jeep, and I am looking to buy a amp to push them. I had bought a loc2 pro controler with AccuBASS but it didn't work (maybe bad part) a regular controler worked just fine. My question is if I went with a amp that had AccuBASS would that get me the bass I want is so what would be the amp I would want to use to push them
I just connected my subs to a mono amp with the dual setup like on the lC -1-1500 and can’t get my subs to thump everything else is connected correctly any idea what I’m doing wrong I did one to the positive and one to the negative
Quick question. The cable that connects the gain control switch to amplifier is too short to reach amplifier. What type of cable can I use instead of the one provided in my amplifier install kit? Looks like a 6C6P or Cat6 ethernet cable.
Does this also apply on old school amps
Question: TIA
I have RCA’s running from my deck back, when I plug in both red and white to the amp, my sun sounds muffled, when I plug in one, doesn’t mater the red to red or white to white, it sounds fine but seems like there is more the sun can give. Any ideas?
Hi! What about the inputs? Does I need to input the left AND the right channel or one channel is enought??
Big help. Thank you. Exactly what I was wondering on my mono with 2 sets of Terminals
The jumpers in mono is like Bridge mode in power amplifiers. Is it the same?
Hi Mark,
What's your pick - JL audio or Focal?
I have a mono amp with L/R INPUT and the signal coming from dsp has 1 rca coming out should i use a split rca cable?
So if you put a dvc sub with 4 wires going to the amp does that wire it in parallel?
am i correct to say that it doesnt matter if i connect double positive and double negative wires to one sub woofer , vs just connecting one positive and one negative to one subwoofer?
thanks!
What is the best connector for subwoofer quick disconnect?
There is actually one major advantage to bridge or use both the outputs on the dual that you did not mention, I would always bridge or use both outputs always if possible, why? it is very simple, This speaker block is internally connected on the PCB, if you use one pair you gonna push all load through 2 solder connections instead of 4, I had amps where this load got so high the joints exploded and the amp failed due to overload on these. if you use both outputs you gonna share the load on the terminals making such failure case much less prominent. However this applies more to cases when you load the amp with lower impedance thus making more current. But I had amps fail before I always started to use the terminals with all available outputs. you would actually gain a tiny but more power too as the resistance get slightly lower. I competed in audio a lot before and this is why I know. Every watt counts
Great point, and 4-channel home audio wire could solve the issue, eg 4 wire. Doubling the wires reduces the total AWG by 3, making it feasible to use a speaker wire (eg, 16 awg) that actually fits instead of trimming or using special tips to fit a monster sized wire, plus both connections get used. The 4-channel wire is better than 2 runs of wire, as the wires are bound into a single cover, minimizing impedance fluctuations.
@@perk28 great to hear your feedback about this! Bassheads unite!
Running to a dvc what advantage of running 4 conductors? Instead of just jumping them in my box that little bit less resistance will be made up by another 2ft chunk of wire
@@Spacecadet3890 The biggest benefit is that you reduce the load on each terminal since you run less current through each wire and terminal as they split in half you will have more power and less heat produced in the interconnects and wires. But in low power amps it gonna be a pretty small amount.
I had an amp with more than 1KW power explode the solder joints on the speaker terminal because it was too much current for one single output. So it is just a matter of caring about your stuff but either way you connect is still gonna work unless it can’t handle the power in the long run
Question, my amp is a audiopipe apmn 1ohm stable amp and has those two terminals and im trying to connect both my 2ohm subs at 1ohm... Can i wire each sub at 1ohm and then connect each to there own terminal and still get 1ohm??? Plz help
Thanks
My previous question? Rca wires how many and which are the best
How about if I got an 1 ohms amp but my subs are 2ohms my subs are 2 boxes of Sealed downward-firing enclosure with CompRT® 10" shallow-mount subwoofer and passive radiator my amp output are double so each are connected separately is this okay
And on the Kicker CXA1800.1 the middle terminals are not labeled, so that’s awesome.
How about how to test a used amplifier on the fly? I was burnt picking up a Rockford Amp on Craigslist. Met in person, tested the continuity at the speaker leads, got home and it popped fuses left and right. Obviously i did not do it correctly. I have bought from a dealer or amazon every since then 2013.
Wait so I bought dual 8in skar sdr subwoofer with 1400 watts can I use a skar mono amp with 1200 watts would it be compatible
I just got a 1600w 12inch skar subwoofer vented it is preloaded in a box wired to 1ohm 1600w peak 800w rms with turning frequency of 36hz and im an amateur and got the 1200w rms to 1600w peak amplifier and dont know anything to set gain lpf or subsonic but want to know how i can get the best sound out of my bass without it sounding wobbly or damage my subs how do i set those settings the easiest way
Very good explanation !! Thanks
thank you sir!
Thank you!
Respect bro
My kicker 1200 amp has two positive on the left n two negative on the right . I connected positive to the middle positive n negative to the middle negative . I was starting to think I needed to connect the positive the far left positive n negative to the middle terminal.
So my monoblock is a jbl club 600 watt and it says in Manuel it pushes 350watt RMS x1 at 4ohm and 600 watt RMS at 2 ohm now I have my 2 12's that are 4ohm wired to each +/-. There are 2 sets of these on my mono block my question is how do I have to wire them to hit the 600 watt RMS and does that mean the amp will be running at 2 ohms or my subs will run at 2ohms and will that damage my sub's if so?
Hi question could I use two car amps 2500 to power one big dvc sub
say I'm wiring two sub woofers on an amp like that. Will it split the 300W RMS between the two of them or do they both get 300 RMS?
Is the old school Rockford 800a2 a mono block or 2 channel?
I got two kicker ten inch to ssl amp I got it hooked up right I get a wining sound when I press the gas on my car
Question? Is there ONE amp that does both SUBS(2)(skar10"800w) and SPEAKERS(4)(ds18) and tweeter 🤔
-I'm looking @Skar amp 2000?
love vid, keep the good work up❤. question I have is. if you have four 4 ohm subs and run each to series then parallel leaving two separate connections at 4 ohms then connect it to the amp like you showed. would the connection to the amp still be 4 ohms for all subs or does the amp parallel it again and make it 2 ohms for all subs?
Just look at it like the amp only has one output, yes 2 ohm is what the amp sees if i am understanding your question right - 4x 4ohm voice coils wired in series per pair then paralleled to the amp.
No it's 4 ohm
I wanna ask a question so how do you connect a single sub to a 4 channel amp I’ve been looking all over the place and I can’t find nothing
Can we run mono amps at home ? Please guide
On a dual voice coil sub can you run short wires between both negative terminals and positive terminals. Then run a single neg/pos to the amp?
Yes you can
or do like he was showing and run 2+ and 2- wires to amp so the wire won't limit power but it might not be even a noticeable difference.
So it's bridged but kinda like 1 dual coil
Is wired like 2 speakers.
Either way works. 4 wires would be able to transmit more power
But if the 1+ 1- and jumper wires aren't limiting ie maxed out
then there wouldn't really be a benefit to the 2 more just
It's like the 2 outer tires on a dullay truck
when there's no load
sure there's potential but not really needed when it's empty
unrelated question to your current video, but where do you get sheet acrylic used for custom racks, or speaker mounts?
Tap Plastics is a good source, for Cast Cell Acrylic (way easier to work with than plexiglass)
as well as HDPE (cutting board material, also known as Starboard), for speaker adaptors and amp racks.
I do not want to put no speaker box in my vehicle just want to take out the original speaker an put other speakers so I was wondering what's the best speakers to use for bass and voice
I've been using my stock door speaker on a 11 Nissan frontier with some subs. Quick question. If they sound good for me, would it be recommended to change my stock speakers and tweeters in my car?
Do you play your music LOUD? Are you willing to do a 4 channel amp install? Speakers and an Amp will just raise you volume ceiling, while also producing clean, loud sound. Depends on what you want and how much you want to spend.
Can I put 4 gauge to this amplifier power cable or 0 gauge?
HOW DO YOU REBOOT OR RESET AN LC1.800 OR USE THE JUMPERS ON THE INSIDE OF THE AMP
Hello thanks for your great work. I need help I'm using a subwoofer that's AC and I want you to help me convert the AC to DC so that i can use it in my car
nice! 😎
Hi I have a energy audio 3500.1 monoblock what subwoofer can a put in the car .becose it already blows my 1 starsound 2700w subwoofer
I'm trying to figure out the connection from the 3317 to the head unit can you please help
Hi Mark. Is it normal that the cooling fan off the LC-1.1500 is always on when powered. It’s been told to me that it’s normal, others tell me it should only turn on when it gets hot.
If everything else works then I wouldn't be too worried. With 2 failure states, always on or won't turn on, your's is ideal.
@@aycentroid it works fine, enough clean power. Only for a digital amp it gets quite hot; and heat is wasted energy.
And one last thing; when the amp is shutting down, in the last second when shutting down it makes the subwoofer make a scratchy sound, like a kind of “backfire” of the voicecoil.
Because the positives and negatives are connectied does that make a parallel circut inside the amp so if i connect two subs with a 8ohm load each would it be seen as 4 ohms to the amplifier?
Yes, correct
Does it work for all class D Amps with 2 channels
I have a speaker wire ..one has a blu stripe and the other one is brown. How do I know what's the positive ?
I have a question !!!
I have a kicker DXA500.1 that cuts out when i turn the volume up. Subs are wired parallel.. the way i have it wired is like what you would do if it was not a mono block amp. One neg from one side one positive from other side. I didn't know it was a mono amp. Because it had two output channels. So i had to increase the ohm load to get it to stop shutting down when i turned it up. Works fine now but it's not as loud. Im thinking it's because of my ground. I have it grounded with the bolt that grounds the trunk latch bolt. Whet i hit the release in the glove box it shuts amp off for a second. Anyone know why it's cutting out at a two ohm load ? Maybe i gotta run both out puts ? Also when it was shutting off as i turned up the volume my headlights were really dimming bad. And i have a capacitor that helps prevent this. Any advice would help. Thanks
Is it safe to connect an amp at 1ohm to a 2ohm sub?
Those terminals are internally parellel connected right ? So, when i connecr two subwoofers to each of the terminals ( or connecting DVC subwoofer to each ) there will be impedence difference right ? If i connect two 2 ohms subs to each of them, the total impedence should be 4 ohms ! So the efficiency will be lower ?
Two 2 ohm subwoofers connected would be in parallel and thus a 1 ohm load. As covered in the video yes these terminals on a monoblock are internally connected.
So if I have dual outputs on my amp & 2 4ohm subs. Are you saying wiring both separately to 2ohms then connecting both pairs of each subs pos & neg wires to the amp directly will result in a 1ohm final load? Which essentially is wiring them in parallel but through the amp instead?
Really need this answered. My box’s port is in the middle & I don’t want to drill a hole to wire them together if I don’t have to 😢
Same I don't know why I can't find this anywhere.
@kushmade1 I figured out the answer on my own; the answer is yes; you can wire two 4ohm subs individually at 2ohms, then connect them to the amp (if the amp is a monoblock) & the final load will be 1ohm. The speaker out terminals aren't two separate channels, but most monoblock amps offer an extra set of terminals for this exact reason, convenience.
Hope this helps, man! :)
How about going into multiple subwoofers with dual voice coils mounted on a monoblock like three subs with dual 4 ohm voice coils how would you wire that to achieve a mono load
Wired coils in series, 8ohms each sub. 8ohms ÷ 3 subs = 2.66 ohms.
Need an amp capable of 2 ohms.
You will have a power loss. Over powering the max rated RMS of the sub, moderately, can overcome this discrepancy.
So does that mean if i wire two 1ohm subs it still will have a 1ohm impedance
So here is a question that I can't seem to find a video or diagram for. I have a Power Acoustik Vertigo 8000w monoblock. Can I hook 4 subwoofers to it? And if so how?
If you know how to wire and you’re confident behind your wiring work
My amplifier line out has no sound, but the speaker port was normal. Idk why, and I'm still searching tutorial to fix. And yeah, cause idk about electronic, idk what should i do.
So if I have 2 dual 2 ohm subs wired to 1 ohm each. If I connect each sub to its own side of the 2 input monoblock.
Will it stay 1 ohm resistance or will it go to .5 or 2 ohm?
I'm wondering the same thing..
I have question that I would like your opinion on. Just so we are clear ALL variables are equal in this situation. Question - Is it more efficient to run two Amps separately on two separate subwoofers? Or is it more efficient to run one large amplifier on both subs?
So we are clear. Two Alpine subwoofers that EACH take 400 RMS. On two 400 RMS Alpine amps or one 800 rms Alpine amp?
It makes no difference where the power is coming from all the subs see are power. Does not matter if it is one amp or two. The only difference it makes is on audio signal. You cannot run 2 different signals to two amps because they would play at different timing. Just run one audio signal to the input on amp one and then use the audio output on amp one to the input on amp two. So the audio signal is linked. Just make sure your amp has an audio output :)
Efficient amps are not equal. Check the specs, amperage use at rated output. This is what you want to know.
How does each amp covert amps to watts of output. Class d is more efficient then class a/b for instance.
Signal input voltage needs a little bump up, if two amp share it.
@@saveitdamnit I was saying more for someone that might be using 2 5-channel amps and that 5th channel on each amp for each of your subs. They are identical amps with the same about of “efficiency” and power
Is there any way you can make some videos on some good amps and DSP's made by other companies than audio control that are also good options for people that are building a complete audio system on a budget of a few hundred dollars to $1k?
That’s like asking Lebron to wear some Reeboks
I don't think I could have done better than the kicker key auto eq did. I do wish it had more power though
DIY Audio guy made video like that today lol
what if its a mono block with two speaker hooks ups but it has a bridge diagram above the speaker outputs? like the American bass dc2000 xfl
A bridgeable amp isn't a mono block. Its a bridged amp, and there is a big difference between the 2. When you bridge a 2 channel amp to 1 channel, the downside is the amp now half the resistance on any load you connect to it. So, for example, if you have a 4 ohm speaker, after bridging the amp sees a 2 ohm load even though the speaker is 4 ohms.
You should never bridge an amp unless you have to. You end up beating the crap out of your amp and speakers. Its better to buy an amp with enough power to begin with.
What size speaker wire is ideal for connected the sub to amp ?
depends on subs rated power, but for most people, 12-10 gauge works fine. I use 10 gauge on my sub thats rated for 1000 watts
That cover photo lol
Are Rockford Fosgate as potent as in the 90's..?
So just to be clear, in the video u said that u can use either pair of positive&negatives. My question is can i use the the pos and neg on the outsides. The ones that arent right next to eachother? Seems theres less of a chance of them ever touching by using the outside terminals
They are internally paralleled. It makes no difference which combination you connect.
@@CarAudioFabrication thanks boss
@@CarAudioFabrication I am a recent subscriber to your channel.. You seem to know your stuff. I keep getting conflicting info on my 2, R-W12D2 Alpine R-types dual voice coils that I purchased a couple yrs ago. They are sitting in the closet brand new in the box still. They're 750w rms 2250w max 12's. Everyone keeps saying i should've got the 4ohms. W/e, its what I have to work with. What amp would you recommend to run the subs at 60-70% of their rms. I don't want to max out the subs, I want them to last. I'm upgrading my vehicles wiring to support more power and will have a farad capacitor. People say mono-block, 2 channel, 4 channel etc etc. Any help will be much appreciated. Thank you...
So with a 4 ohm sub for this amp do i just run positive and negative on one side to the amp without having to series or parallel anything?
depends if your sub is dvc or svc
So when running 2 subs to a mono block amp with 2 sets of wire hookups do you just put one sub on one and the other sub on the other one?
I have a jbl mono block with 2 sets of speaker outputs and 2 12" subs as well. The way mine is set up only uses a single positive and negative connected to the Amp and then the positive wire connected to the first speaker and the negative connected to the second speaker and a short wire that connects the negative of the first speaker to the positive of the second speaker. I tried connecting both speakers individually but it didn't improve anything and looked less clean with more wires and I felt like it might have actually had slightly worse performance.
Great videos. I have a question reguarding this subject. I have 2 12" dvc 2ohm subs. I am going to wire them in series parallel into a 2 ohm amp. My question is do i have to feed one sub from the other in order to end up with 2 phm total load or can i wire both subs to the mono amp? Reason im asking is it will be a lot easier to wire each sub to the amp (single output amp) rather then feeding one sub from.the other as the terminal connections are much smaller. Thanks again . I found this channel looking for info on using a dsp for the first time
How much price in Kenya?
How about for use with a twin coil subwoofer speakers?
Discussed in video
How do you install an amp to a factory radio without increasing the motion detector sensors? My backup and side detection sensors became extremely loud and annoying.
Use a different channel for signal. Those usually only come through on certain channels.
I have this double pos/neg connection on my amp, except the manual states ‘internally parallel’. Makes wiring a breeze.
Every monoblock amplifier that has the dual pairs is internally parallel. Unfortunately though not every company makes this clear which leads to consumer confusion.
@@CarAudioFabrication Did I just expose my noobness? My concern was wiring D2 or 4 subs to a mono without blowing isht up. Noobs are born everyday in car audio; I’m one of em. Thanks!
This is great information unless you live in Florida.
I’m very confused about my situation… I have 4 12s that have been bridged so there are only 2 sets of wires coming from the box. Could I buy an amp like the lc1-1500 that has 4 ports and run it like that or do I need to get a true 2 channel amp?
OMG you didn't ferrule your little visual-test jumpers! lol