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-   -   Need wiring diagram for 16 subwoofers. (https://www.avsforum.com/forum/155-diy-speakers-subs/3079844-need-wiring-diagram-16-subwoofers.html)

doodoobutter 07-21-2019 08:11 AM

Need wiring diagram for 16 subwoofers.
 
I have 16, 4 ohm SVC subwoofers. I want to either run them 4 ohms off of one channel, or 2 ohms off of one channel. I'm not sure on my amp yet, which is why I'm asking for both. I have wired 2 subwoofers for 2 ohms before in a car, but I used a diagram. I'm hoping someone can give me an in depth explanation on how to do this, or maybe supply some diagrams. Crutch field has good images for diagrams, but they only go up to 4 drivers. So if someone could maybe provide me with an explanation like this:

Wire 4 subwoofers like this + img. Then wire them together like so etc... or an img of 16 wired together, which I can not find.

Kal Rubinson 07-21-2019 08:25 AM

Quote:

Originally Posted by doodoobutter (Post 58321888)
I have 16, 4 ohm SVC subwoofers. I want to either run them 4 ohms off of one channel, or 2 ohms off of one channel. I'm not sure on my amp yet, which is why I'm asking for both. I have wired 2 subwoofers for 2 ohms before in a car, but I used a diagram. I'm hoping someone can give me an in depth explanation on how to do this, or maybe supply some diagrams. Crutch field has good images for diagrams, but they only go up to 4 drivers. So if someone could maybe provide me with an explanation like this:

Wire 4 subwoofers like this + img. Then wire them together like so etc... or an img of 16 wired together, which I can not find.

https://www.google.com/imgres?imgurl...act=mrc&uact=8

doodoobutter 07-21-2019 12:54 PM

That's awesome, thank you! I was looking all over google for something like this. Any chance you have an img for wiring them to 2 ohms?

Kal Rubinson 07-21-2019 03:22 PM

Quote:

Originally Posted by doodoobutter (Post 58322934)
That's awesome, thank you! I was looking all over google for something like this. Any chance you have an img for wiring them to 2 ohms?

I just googled Series/Parallel Speaker wiring and picked that one out of the Image listing. There's another, I think, that will get you 2 ohms.................but why?

doodoobutter 07-21-2019 04:34 PM

I need 1000 watts to run them infinite baffle. An NU3000DSP will give 1000w at 2 ohms.

VegaMan 07-21-2019 08:20 PM

why not bridge into 4 ohms? do you need the other channel for something?

doodoobutter 07-22-2019 06:28 AM

6 Attachment(s)
Edit: Apparently mobile has some weird formatting, here is what I meant to say:

I was planning to use the other channel to run my center. I can either do 2 ohms with an NU3000DSP, or 4 ohms with an NU6000DSP. Then use the other channel for my center. The mains will be powered by an NU3000DSP.

Kal Rubinson 07-22-2019 04:35 PM

Quote:

Originally Posted by doodoobutter (Post 58323772)
I need 1000 watts to run them infinite baffle.

Really? You have an auditorium?

torii 07-22-2019 04:37 PM

Quote:

Originally Posted by Kal Rubinson (Post 58328048)
Really? You have an auditorium?


I think it stems from car audio where most subs in competition get wired with 2 or 1 ohm loads to get most output/power/watts.


my competition car from 2000's had just 2 12 inch subs getting 3000 watts at 2 ohms bridged...over 152db on dash...150 db's can sound good believe it or not...if ear protection used :)

Chris Popovich 07-22-2019 04:40 PM

Kal,

They are low-dollar high performing subwoofers that can be occasionally found for $30 each, making an array of them an excellent alternative to higher priced drivers, as long as one has the space for them available. Most of the guys here will be using them equalized to have a rising in-room response below 15hz or so with capability to play at or above reference levels. To meet requirements on the extreme bottom end, enough of them will be used that there will be ridiculous headroom in the upper bass ranges. Bottom line is that 1000 watts and 16 sub drivers isn't as crazy as it might seem upon first take.

Always liked your writings btw.

Chris

Kal Rubinson 07-22-2019 04:44 PM

Quote:

Originally Posted by Chris Popovich (Post 58328076)
Kal,

They are low-dollar high performing subwoofers that can be occasionally found for $30 each, making an array of them an excellent alternative to higher priced drivers, as long as one has the space for them available. Most of the guys here will be using them equalized to have a rising in-room response below 15hz or so with capability to play at or above reference levels. To meet requirements on the extreme bottom end, enough of them will be used that there will be ridiculous headroom in the upper bass ranges. Bottom line is that 1000 watts and 16 sub drivers isn't as crazy as it might seem upon first take.

Really? Not from my perspective.

Quote:

Always liked your writings btw.
Thanks. Hope this comment doesn't change it.

torii 07-22-2019 04:58 PM

Quote:

Originally Posted by Kal Rubinson (Post 58328098)
Really? Not from my perspective.

Thanks. Hope this comment doesn't change it.


I totally agree on quality designed subs...I was running eclipse fujitsu ten subs at around 1 grand a piece back then and imo totally crushed rockford fosgate and kicker brands....ofc when I think 30 dollar subs I think jbl/revel...but what do I know.

Chris Popovich 07-22-2019 05:06 PM

Quote:

Originally Posted by Kal Rubinson (Post 58328098)
Hope this comment doesn't change it.

Not a bit Kal. :)

Certainly to each their own. Following a target response close to the Harmon Target places enormous demands on the low frequency components. It takes 3-4 of those JBL's to equal one of the better 18" subwoofer drivers. If you subscribe to the multiple subwoofer optimization practices that are in effect, best smooth response tends to be with 3-4 subwoofers in the room in different locations. Add an aggressive room curve and there you are; a funny look on your face, far too many cones in the room to be reasonable, too many watts to count, and almost certain disapproval from your partner (to say nothing of the same from Stereophile Senior Contributing Editors!).

It is a silly thing, but it brings joy.

Cheers
Chris

doodoobutter 07-23-2019 07:04 AM

OK let me explain.

Quote:

Originally Posted by Kal Rubinson (Post 58328048)
Really? You have an auditorium?

No but I have a very large living room. 10ft ceilings and it's an open floor plan to the kitchen, dining room, and hallway that leads to the bedrooms. I'd say between 800 - 1000ft^2. I'm not really going for loud, I just want good response down to 10hz for watching movies and gaming. I will probably be putting some limits on frequencies above 40hz to balance it out. Too much upper bass is kind of a side effect of chasing low frequencies with many drivers. Also, Chris said "always like your writings", I'm interested to read if you can lead me to it.

Quote:

Originally Posted by Kal Rubinson (Post 58328098)
Really? Not from my perspective.

I'm not really sure what you are disagreeing with here. That I'm going overkill, or that I'm using a bunch of crappy drivers? Because both of those are true. I'm not too concerned about quality when it comes to movie bass, just extension.

Quote:

Originally Posted by torii (Post 58328162)
I totally agree on quality designed subs...I was running eclipse fujitsu ten subs at around 1 grand a piece back then and imo totally crushed rockford fosgate and kicker brands....ofc when I think 30 dollar subs I think jbl/revel...but what do I know.

I was originally going to go with 4x Fi IB3 for $1200. They are basically the best IB driver you can get. But I modeled them against 16 cheap JBLs for $500, and winisd says that the JBLs have a slight advantage. For that price, I couldn't resist trying. Even if the JBLs don't quite live up to winisds results, I'm still getting by for way less, especially when you account for the 2400 watts I would need for them vs 1000 watts for the JBLs.

To be honest, I don't start building this until next week, and I'm already dreaming about the Fi IB3s. I mean there's already going to be a couple holes in the floor. In fact, I think I just answered my own question on the amplifier options. I'm just going to get one that can power the Fi IB3s just in case...

EndersShadow 07-23-2019 07:14 AM

Quote:

Originally Posted by doodoobutter (Post 58330130)
.....I'm interested to read if you can lead me to it.

I think its the same Kal Rubinson from "Stereophile"....

more links here

Kal Rubinson 07-23-2019 07:20 AM

Quote:

Originally Posted by doodoobutter (Post 58330130)
That I'm going overkill, or that I'm using a bunch of crappy drivers? Because both of those are true. I'm not too concerned about quality when it comes to movie bass, just extension.

Fine. Understood. Not my bag.

doodoobutter 07-23-2019 07:53 AM

Quote:

Originally Posted by Kal Rubinson (Post 58330184)
Fine. Understood. Not my bag.

I haven't read your stuff yet, but I just want to defend myself. When I listen to music, I prefer a 2.0 setup with records or CDs. I love a set of old style speakers, the big, low sensitivity boxy looking ones. diysoundgroup style, like an HTM-12. I have been on the lookout for a set of old klipch corner horns for a long time.

For movies, I like the experience of feeling the movie. As a veteran, I know what an explosion feels like, and I want it in movies.

buggers 07-23-2019 11:15 AM

So...are you still needing to know how to wire the 16 drivers?

doodoobutter 07-23-2019 07:24 PM

No I have it figured out, thanks. I tested 16 of them, I need to hook up the other 8 to make sure they all work. Then I'll start on building the boxes and cutting holes in the floor. I'll post a build thread when I'm done, you don't see too many IB builds. I might be the first that I know of to do IB with the cx1200s. They're only getting 18 watts per driver right now on the floor and they sound better than my F20 so I have high hopes now.

Trimlock 07-24-2019 02:53 AM

Post photos when it happens!


Sent from my iPhone using Tapatalk

markmon1 07-24-2019 03:52 AM

1 Attachment(s)
Quote:

Originally Posted by doodoobutter (Post 58333270)
No I have it figured out, thanks. I tested 16 of them, I need to hook up the other 8 to make sure they all work. Then I'll start on building the boxes and cutting holes in the floor. I'll post a build thread when I'm done, you don't see too many IB builds. I might be the first that I know of to do IB with the cx1200s. They're only getting 18 watts per driver right now on the floor and they sound better than my F20 so I have high hopes now.

Yea you just cant beat IB for sound quality.

So I am guessing you already figured this out by now, but you can't really bring those same 16 4 ohm drivers to 2 ohm load and drive each speaker evenly.

I'm a huge fan of Fi IB subs :)

https://www.avsforum.com/forum/attac...mentid=2593898

doodoobutter 07-24-2019 05:21 PM

I have decided to just get an NU6000DSP and I'm going to run them at 4 ohms. I've done ported, sealed, and folded horns. I'm really looking forward to IB, and 16 of these seem pretty promising with just 18 watts each already. I'm also looking forward to not having to live with massive boxes in the living room.

Ex JL Rep 10-13-2019 09:58 AM

From JL Audio: Please note that when wiring multiple drivers it is recommended that series connections between drivers be avoided at all costs. This does not include series connections made between voice coils on the same driver.


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