Subwoofer R&L connections

[ruint]

I have an Infiniti RS sub with low level R & L connections. I am buying a yamaha 2600 with a single low level output. How do I connect the R & L, a Y cable? Thanks for your help.

 

[GlocksRock]

Check the subwoofer's owners manual, some subs only need you to connect the cable to one of the inputs, or some say it's best to use a y splitter. My old Velodyne could be used with just one input, but the manual says it may be better to use a y adapter, however my new SVS sub says to use just one of the inputs, either the left or right.

 

[Alex2507]

http://www.infinitysystems.com/homeaudio/product_support.aspx

You can get the manual here.

 

[darien87]

I have an Infiniti RS sub with low level R & L connections. I am buying a yamaha 2600 with a single low level output. How do I connect the R & L, a Y cable? Thanks for your help.

That's exactly what I did with my Earthquake sub. I bought a Monster Y-splitter on the recommendation of the salesman. I forgot exactly what he said, but I believe it had something to do with getting the most out of the dual voice coils.

 

[Wid]

Coming from the LFE out from a receiver in most cases you only need one cable to the sub. Using a wye splitter only increase the line voltage going to the subs amp. You can achieve this by simply turning up the gain in the receiver. In most cases there is not much gained by using a wye splitter. It certainly has nothing to do with feeding a DVC woofer, that would be done by the subs own amp.

 

[Alex2507]

Coming from the LFE out from a receiver in most cases you only need one cable to the sub. Using a wye splitter only increase the line voltage going to the subs amp. You can achieve this by simply turning up the gain in the receiver. In most cases there is not much gained by using a wye splitter. It certainly has nothing to do with feeding a DVC woofer, that would be done by the subs own amp.

My infinity PS10 doesnt call for a Y but a PS8 does. I figured that link to a manual would be the best way for Infinity to tell him what to do with his paticular model. He could even call them.

 

[Wid]

The way the manual shows , it make no sense at all. It says to use a wye connector when using a receiver with one sub out. When using it in that configuration one would be using the lfe in and not the L/R inputs. Thus no need for the wye connector.

 

[Alex2507]

If it were me I would have a hard time disregarding the manual. I haven't looked at it and would not begin to understand the 'why' of what they are saying. Honestly I have enough trouble understanding 'what' they are saying. That's just the level I'm at. The fact that I could scare up a link for the manual is a miracle.

 

[MDS]

This is pretty simple although the manual could be confusing because it doesn't explain why you would use the LFE input or the R+L inputs.

The options are thus:
1). Use a single cable from the receiver's sub pre-out to the LFE input. With that connection the xover dial on the sub has no effect and you would set the xover frequency in the receiver. This is the 'normal' and preferred connection when using a receiver with bass management.

2). Use a Y adapter to split the single sub pre-out from the receiver into two and connect to both the L and R inputs on the sub. With that connection, the sub's internal xover is active and you'd set the xover frequency on the sub. You could still use that connection and use the xover in the receiver but then you'd have to set the xover dial on the sub as high as it will go to get it out of the way of the receiver's xover.

 

[Wid]

This is pretty simple although the manual could be confusing because it doesn't explain why you would use the LFE input or the R+L inputs.

The options are thus:
1). Use a single cable from the receiver's sub pre-out to the LFE input. With that connection the xover dial on the sub has no effect and you would set the xover frequency in the receiver. This is the 'normal' and preferred connection when using a receiver with bass management.

2). Use a Y adapter to split the single sub pre-out from the receiver into two and connect to both the L and R inputs on the sub. With that connection, the sub's internal xover is active and you'd set the xover frequency on the sub. You could still use that connection and use the xover in the receiver but then you'd have to set the xover dial on the sub as high as it will go to get it out of the way of the receiver's xover.

A quick call to Infinity confirms what I said is the case. The tech support rep said it is not nessisary to use a wye adaptor and the only benifit would be is to increase the voltage coming from the sub out. The crossover is still active and should be bypassed when using the LFE in.

I do understand what you said. This is the case with my sons X-Sub. Then again it was stated as such in the manual.

 

[Alex2507]

My HK AVR 430 has what I believe to be a multiple variable cross over. Even though I set the L and R channels to large I was able to cross them over @ 80 Hz. At the sub settings it shows SUB/L+R+LFE. I have the sub itself set to LFE and for good measure have the sub's cross over @150 even though it is by passed. (Right?) If I understand all this I should not use the Y-adaptor. Now I'm confused.

My sub is in the shop so I can't just experiment. When it gets back it would be kind of nice to make connections with authority. Kind of like saying 'THIS is the way.'

 

[MDS]

My HK AVR 430 has what I believe to be a multiple variable cross over. Even though I set the L and R channels to large I was able to cross them over @ 80 Hz. At the sub settings it shows SUB/L+R+LFE.

I'm not sure what that means without reading the manual but it sounds like a 'double bass' setting (different receivers use different terms to describe that feature, like LFE+MAIN, Plus, or 'double bass').

If the fronts are set to Large the xover is ignored and they get a full range signal. With the double bass type setting, the bass below the xover from the front channels also goes to the subwoofer. LFE always goes to the sub.

Don't worry about the Y adapter. As Wid noted earlier, using the Y adapter simply doubles the voltage to the sub and while that can sometimes help to make 'auto-on' features of the sub work more reliably it isn't necessary.