Dual Sub setup question

[MJailme]

When you hook up dual subs, is it best just to split it once and have a single line running into each sub. Or split it multiple times so you can run a line into the R/L of each sub.

I'm thinking of splitting just once.

Getting another sub next week and need to run the lines through the walls before it gets here.

Also, Does it matter if you split the signal right out of the receiver. or could I split the signal at the end of the cable have have already run.

Thanks in advance.

[Audiophile_At_Birth]

Why not daisy chain them??

[Another_Dude]

Split it once and go into the left of each sub. The later the better, but its not going to make a whole lot of difference.

[HAMP]

Originally Posted by MJailme

split it multiple times so you can run a line into the R/L of each sub.

Your gonna hear arguments from boths sides:
1. Use only the left input for each sub and just turn the volume up +3db, it's the same as using both inputs on both subs
or you will hear
2. It does make a difference with both plugged up into the sub.

I myself have two subs and I have it split from the back of the receiver and then split at each subs left & right. I do hear a difference with both inputs plugged in. I also have both subs turned down from the reciever and on each sub. I'm not trying to bang the block, I love how they sound together and the level I have them at.

Originally Posted by MJailme

I'm thinking of splitting just once.

If that's what you want to do then go for it. Also give the Y-splitter a try before you wire everything up. The Y-splitter you will need dosen't cost that much, buy one and give it a try and then you will know for yourself.

Nothing like testing things out for yourself especially when it doesn't cost you much money or time.

[DavidAg02]

This article should answer all your questions about using multiple subs:

http://www.audioholics.com/tweaks/ge...nnection-guide

[Fors*]

Originally Posted by HAMP

Your gonna hear arguments from boths sides:
1. Use only the left input for each sub and just turn the volume up +3db, it's the same as using both inputs on both subs
or you will hear
2. It does make a difference with both plugged up into the sub.

I myself have two subs and I have it split from the back of the receiver and then split at each subs left & right. I do hear a difference with both inputs plugged in. I also have both subs turned down from the reciever and on each sub. I'm not trying to bang the block, I love how they sound together and the level I have them at.


If that's what you want to do then go for it. Also give the Y-splitter a try before you wire everything up. The Y-splitter you will need dosen't cost that much, buy one and give it a try and then you will know for yourself.

Nothing like testing things out for yourself especially when it doesn't cost you much money or time.

+1. I am doing the exact same thing with my set up. You can get a Y-splitter real cheap from either Monoprice or SimpleCable for like under $5. I highly recommend looking into doing this.

If you can daisy chain them though, that very well make a difference, but I am not sure on that. Unfortunately, I am unable to do so with my current subs.

[MJailme]

Thanks for all input. Decided to use a couple more Y adapters and run a line into the R/L input in each sub. Got the lines run through the walls today.
Now I just have to wait for the second sub to arrive.

[HAMP]

Originally Posted by MJailme

Thanks for all input. Decided to use a couple more Y adapters and run a line into the R/L input in each sub. Got the lines run through the walls today.
Now I just have to wait for the second sub to arrive.

Have you tried to hook both the R/L into the one sub for now and noticed a difference?

[nezff]

I like the y adapter, but I could do without it and just turn the sub up more.

[MJailme]

Finally got my second sub yesterday. I know I've read the answer to this next question, but now I can't find it.

When using my SPL meter to calibrate, do I measure the two subs together or separately?

Here a quick photo

[Fors*]

From what I have read, you would measure each one seperately.

[MJailme]

Originally Posted by forsberg21

From what I have read, you would measure each one seperately.

Thanks, That what I thought I remembered but wasn't 100% sure. I will finish dialing them in.

[Fors*]

Originally Posted by MJailme

Thanks, That what I thought I remembered but wasn't 100% sure. I will finish dialing them in.

Just curious, but where are you inclined to set up both subs when you use the spl meter?

[liquidice]

MJailme; does it sound different with your ceiling speakers vs floor standing speakers? Looks super damn clean though!!! Took me a minute to find those suckers!

[Big Daddy]

Originally Posted by MJailme

Finally got my second sub yesterday. I know I've read the answer to this next question, but now I can't find it.

When using my SPL meter to calibrate, do I measure the two subs together or separately?

First, make sure that the volume dials on the back of the subs are at the same level. Start at 50% and adjust later. Also, make sure the crossover dial on the back of the subwoofers are all the way up to their maximum level.

After, this you need to use your SPL meter or the built-in calibration program in the receiver to get the optimum bass output generated from both subwoofers for the primary and secondary listening positions.

Subwoofer placement in the room is probably is the most important factor in giving you good bass sound. Although two subwoofers can give you more bass output and higher SPL, the main reason for having multiple subwoofers is to eliminate the negative effects of standing waves and to create more even and smoother bass across the room for all listening positions. Therefore, subwoofer placement becomes very important.

From the picture you posted, I am not sure putting two subwoofers side by side next to the fire place is the best position for your subs. Look at the diagram below and also read the A Guide to Subwoofers (Part II): Standing Waves & Room Modes.

[MJailme]

Thanks for all the info.

Taking your advice Big Daddy and moving the subs around. Will try them first on opposite ends of the room and go from there.

[Fors*]

Good luck, I have been moving both of mine around almost daily for the last few weeks....I need an SPL meter....no doubt!

[squirrel101]

according to calibrators place the sub in your seat play a 60hz frequency and crawl around the room until you find the place where the bass sounds best and that is where you place the sub have pseudo tried this when testing my recent sub purchase and the sound was best in the corner

[jibucha]

Hello

Definitely, proper set up, is having one subwoofer per channel.

This way, whatever sound information is available, whether left or right, is left or right, as intended; you will hear the difference.

Thank You

Originally Posted by MJailme

When you hook up dual subs, is it best just to split it once and have a single line running into each sub. Or split it multiple times so you can run a line into the R/L of each sub.

I'm thinking of splitting just once.

Getting another sub next week and need to run the lines through the walls before it gets here.

Also, Does it matter if you split the signal right out of the receiver. or could I split the signal at the end of the cable have have already run.

Thanks in advance.

[jibucha]

Hello

Definitely, measure separately.

Remember, to make certain that your connections are separate left and right, from the receiver or amplifer, to each appropriate subwoofer, again left or right.

While many on this thread have indicated preferences; only individual runs is proper for proper performance.

The issues become quite involved, so I am intentionally keeping this to be as direct and simple as possible, as the outcome is simply to hook up subwoofers as you would loudspeakers, with left and right individual.

Nothing changes just because it is a subwoofer; after all, subwoofers are simply an extension of the loudspeaker itself.

Properly setting a system up, maintains proper performance, especially the left and right balance, for the most coherent sound throughout, including the frequency range of the system.

Thank You

Originally Posted by MJailme

Finally got my second sub yesterday. I know I've read the answer to this next question, but now I can't find it.

When using my SPL meter to calibrate, do I measure the two subs together or separately?