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Hooking up 4 Subwoofers?

post #1 of 56
Thread Starter 
Want to hook up 4 Hsu Uls15 subwoofers 2 stacked on either side of the front stage where I already have 1 subwoofer cable in each spot. My issue is that I can't add a new cable as they are in wall ( or it least it would be a PITA). The obvious solution is a Y connector but I cant find any that are long enough to reach each input from one sub to the other. . Also, I can't seem to find any Y connectors that are all female. Am I missing something obvious ?

TIA
post #2 of 56
yes you are..... go to radio shack or best buy or some where and get the female y splitter. They are not long so you will have to get rca or coax cable as well. If you dont want to run a long cable, think about getting a wireless transmitter/receiver for your application.
post #3 of 56
Also this might help you on sub placement.

http://www.harman.com/EN-US/OurCompa...s/multsubs.pdf
post #4 of 56
Thread Starter 
Thanks but I would need an all female y splitter and for the life of me I can't find one.

And I have no interest in using the wireless feature as I've used it in the past with not the best results.
post #5 of 56
Hey bud you can do it real easy. You have a male RCA going into the first sub so disconnect it and plug it into a short 2 female one male Y.



Plug the RCA from the wall into one of the females. Plug the male part of the Y into the top sub then run a short male to male RCA from the other female part of the Y to the second sub on the bottom.
post #6 of 56
post #7 of 56
Thread Starter 
Quote:
Originally Posted by hometheatergeek View Post

Hey bud you can do it real easy. You have a male RCA going into the first sub so disconnect it and plug it into a short 2 female one male Y.

Plug the RCA from the wall into one of the females. Plug the male part of the Y into the top sub then run a short male to male RCA from the other female part of the Y to the second sub on the bottom.

Holy cow I feel stupid. It was obvious! Thanks. For some reason I didn't think it would work that way. I thought the source signal had to be from the single end. I guess I was over thinking it.
post #8 of 56
Quote:
Originally Posted by wingnut4772 View Post

Holy cow I feel stupid. It was obvious! Thanks. For some reason I didn't think it would work that way. I thought the source signal had to be from the single end. I guess I was over thinking it.

I'm here for family anytime. Let me know how the subs sound stacked.
post #9 of 56
BTW, there are cheap adapters that will convert the ends of any Y-adapter to whatever you might need.


convert a male end to a female end:

http://www.cablesforless.com/RCA-Cou...ale-P4949.aspx



convert a female end to a male end:

http://www.cablesforless.com/RCA-Cou...-P4948C84.aspx
post #10 of 56
Quote:
Originally Posted by wingnut4772 View Post

Want to hook up 4 Hsu Uls15 subwoofers

Am I missing something obvious ?

Could use the wireless feature. Set all the subs to receive the same transmitter.
post #11 of 56
Thread Starter 
Thanks for all the replies. I guess I was really just hooked on the Y adapters being directional or something like that. My problem is solved. I knew it was a blonde oversight.

I really don't like the wireless feature on the subs. I never could use it successfully without popping or signal interference.
post #12 of 56
Quote:
Originally Posted by sivadselim View Post

BTW, there are cheap adapters that will convert the ends of any Y-adapter to whatever you might need.

convert a male end to a female end:

http://www.cablesforless.com/RCA-Cou...ale-P4949.aspx

convert a female end to a male end:

http://www.cablesforless.com/RCA-Cou...-P4948C84.aspx

Convert a male end to a female end. . . . Sounds like my neighbor Bonnie who used to be Ronnie . . .
post #13 of 56
hey wingnut, have you considered stacking them all up in a line array? The Dr had some interesting things to say about the performance of that kind of arrangement, it has me curious. If I had more ULS's I would try it out myself.
post #14 of 56
Thread Starter 
Quote:
Originally Posted by shadyJ View Post

hey wingnut, have you considered stacking them all up in a line array? The Dr had some interesting things to say about the performance of that kind of arrangement, it has me curious. If I had more ULS's I would try it out myself.

Not really. Mostly for aesthetic reasons but also because I like the improved response from placing them in separate positions.
post #15 of 56
Quote:
Originally Posted by wingnut4772 View Post

Not really. Mostly for aesthetic reasons but also because I like the improved response from placing them in separate positions.

If you like the "improved response from placing them in separate positions", consider placing all 4 in separate positions:

Midwall of each of the 4 walls (Welti)
1 in each corner (Welti)
Random Placement, (Geddes)

At the very least, measure the placements and optimize the measurements.

Craig
post #16 of 56
Thread Starter 
Quote:
Originally Posted by craig john View Post

If you like the "improved response from placing them in separate positions", consider placing all 4 in separate positions:

Midwall of each of the 4 walls (Welti)
1 in each corner (Welti)
Random Placement, (Geddes)

At the very least, measure the placements and optimize the measurements.

Craig

Again aesthetics. And I like them stacked more than I like them in 4 different spots. I've tried them every which way. I had them stacked before but with 4 cables.
post #17 of 56
Thread Starter 
Ok. I'm revisiting wireless. ( sigh)
post #18 of 56
Thread Starter 
Quote:
Originally Posted by craig john View Post

If you like the "improved response from placing them in separate positions", consider placing all 4 in separate positions:

Midwall of each of the 4 walls (Welti)
1 in each corner (Welti)
Random Placement, (Geddes)

At the very least, measure the placements and optimize the measurements.

Craig

I have them spread out right now. 2 in the corners on the left and 2 on the right, where corners would be if there were a wall. This configuration cured my 40 hz null but I am gonna see if I have any issues with the wireless and if I like the way it looks. Sounds pretty good so far. It turned out they didn't look so great stacked and since this isn't a dedicated room, looks are important to me. ( I'm a chick - so of course ! Ha)
post #19 of 56
Quote:
Originally Posted by wingnut4772 View Post

I have them spread out right now. 2 in the corners on the left and 2 on the right, where corners would be if there were a wall. This configuration cured my 40 hz null but I am gonna see if I have any issues with the wireless and if I like the way it looks. Sounds pretty good so far. It turned out they didn't look so great stacked and since this isn't a dedicated room, looks are important to me. ( I'm a chick - so of course ! Ha)

Wow you learn something everyday. Do you have a way to run a sub wire under the room the subs are in? That is what I did. One is 25 feet the other one is 30 feet and I have no issue with signal loss. Conversely you could go up and over with cabling too. Just a thought.
post #20 of 56
Thread Starter 
Quote:
Originally Posted by hometheatergeek View Post


Wow you learn something everyday. Do you have a way to run a sub wire under the room the subs are in? That is what I did. One is 25 feet the other one is 30 feet and I have no issue with signal loss. Conversely you could go up and over with cabling too. Just a thought.

I could. I have all my stuff wired to a closet anyway so there is no gear out in the room. It would just be a royal PITA to do it, especially since that is an exterior, concrete wall. I'll digest it for awhile and see if I even like the placement.

Edit: not under but through the attic.
post #21 of 56
Quote:
Originally Posted by wingnut4772 View Post

I could. I have all my stuff wired to a closet anyway so there is no gear out in the room. It would just be a royal PITA to do it, especially since that is an exterior, concrete wall. I'll digest it for awhile and see if I even like the placement.

Edit: not under but through the attic.

Try 2 to the front in the L & R corners and the other 2 to the left and right of the seat (preferably against the wall). My 3 Submersives are one midwall to the front and 2 L & R to the wall at the seat.
post #22 of 56
Thread Starter 
Quote:
Originally Posted by bsoko2 View Post


Try 2 to the front in the L & R corners and the other 2 to the left and right of the seat (preferably against the wall). My 3 Submersives are one midwall to the front and 2 L & R to the wall at the seat.

I only have left corners. Front and rear. The right side opens up to the house.
post #23 of 56
Thread Starter 
After contrasting and comparing I have decided to go ahead and hardware the 2 in the rear. Wireless is adequate but the bass is tighter wired. Overall pretty happy with the response coupled with the SMS1.
post #24 of 56
With 4 subwoofers, setting them up is critical. How are you setting levels? How are you calibrating the system? Do you have any room correction/EQ? Do you have any measuring equipment?

Craig
post #25 of 56
Quote:
Originally Posted by wingnut4772 View Post

After contrasting and comparing I have decided to go ahead and hardware the 2 in the rear. Wireless is adequate but the bass is tighter wired. Overall pretty happy with the response coupled with the SMS1.

rather interesting observation there...
post #26 of 56
Thread Starter 
Quote:
Originally Posted by craig john View Post

With 4 subwoofers, setting them up is critical. How are you setting levels? How are you calibrating the system? Do you have any room correction/EQ? Do you have any measuring equipment?

Craig

I have an SMS1 and an SPL meter. I have them all set equally from my listening position at the same db. Like I said, my room opens up to the right so the 2 on the left are in corners and the two on the right are in the place where corners would be if there were a wall. They re all symmetrical and really the only places I can put 4 subs without stacking them in the front. I have a fireplace to my left in the middle and french doors to the rear in the middle.
post #27 of 56
Thread Starter 
Here are some pics. I am open to suggestions....
LL
LL
LL
LL
post #28 of 56
Thread Starter 
Quote:
Originally Posted by ccotenj View Post


rather interesting observation there...

It seems that way to my ears.
post #29 of 56
Quote:
Originally Posted by wingnut4772 View Post


It seems that way to my ears.

I've measured a couple db's drop using wireless vs. wired (same subwoofer and avr settings)... Might be what you are hearing differently, but with that being said I'd never argue that your "tightness" observation is incorrect since you may have a better ear than me.
post #30 of 56
Thread Starter 
Quote:
Originally Posted by JackOften View Post


I've measured a couple db's drop using wireless vs. wired (same subwoofer and avr settings)... Might be what you are hearing differently, but with that being said I'd never argue that your "tightness" observation is incorrect since you may have a better ear than me.

That's true but I have calibrated for the disparity. My guess is timing or I could be imagining it but I don't think so. I do have pretty discerning ears lol.
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