AVS Forum banner
1 - 10 of 10 Posts

·
Registered
Joined
·
26 Posts
Discussion Starter · #1 ·
Hi guys


I have a Klipsch KSW-10 subwoofer and an older Yamaha 5.1 receiver. I hooked this up a long time ago but recently have been starting to read these forums and learning more about home theater and started to wonder if my sub is connected correctly.




Looking at the image above pulled from another site, I have a similar cable connection going from my receiver's "subwoofer out" to the "LFE" port in the back of the sub. If I recall correctly at the time I hooked my sub up, I couldn't quite figure out what the Y connector was for or if I needed it.


Here is my receiver:
http://www2.yamaha.co.jp/manual/pdf/...re/RX-V496.pdf

Page 15 refers to connecting the subwoofer but you guys probably know more about this.



Also how do I know what to set the "Lowpass" and "Phase" to?
 

·
Registered
Joined
·
403 Posts
It's hard to tell from the picture, but it appears the Y is just feeding the other input. You really don't need to do this. Other Y applications would include a second sub or bass shakers.


You are fine with just one cable.
 

·
Registered
Joined
·
1,276 Posts
If leaving one RCA jack of the line-in bothers you that much, just get a Y-cable and be done with it, it's probably only like a buck.



As for low-pass, it would depend on what speakers you have. What speaker set do you have? If you can control the frequency cut-off on your receiver then setting it to maximum is all you need to do. If you can control it, using 50Hz or 60Hz for floorstanders is a good start, while 80Hz is usually recommended for bookshelves. Then just tweak along the way depending on how you find the sound at certain low-pass points.


I've previously had a Yamaha RX-V430 which had a fixed crossover point of 90Hz. I just turned low-pass (or crossover) on my subwoofer and the receiver handled it. 90Hz and above are sent to my speakers, everything else below that is sent to my subwoofer.


As for phase, I'm not totally sure how to explain it. You can turn the knob slowly after installing everything and see if bass improves at a certain phase point.
 

·
Registered
Joined
·
26 Posts

·
Registered
Joined
·
1,276 Posts
The receiver you have has a fixed crossover at 90Hz. Just turn up your low-pass knob on the subwoofer all the way and the receiver will handle the rest. Btw you should set all your speakers to small to utilize the 90Hz cut-off, otherwise full range will be sent to them.


Newer receivers allow you to set the crossover point, on my RX-V663 you can set it as 40Hz, 60Hz, 80Hz, 100Hz, etc.


As for phase, try to experiment which value would give you the best sound experience. Experimenting and tweaking is where the fun is at.
 

·
Registered
Joined
·
26 Posts
Discussion Starter · #7 ·
Why would having the full range of sound being sent to the main speakers be a bad thing? To be honest I don't really understand what changing the "crossover" does in plain terms, or what the difference of 40Hz or 100Hz or what that means..



edit: also, I believe have the Bass Out set to Both.. as in main speakers and subwoofer.
 

·
Registered
Joined
·
403 Posts
In simple terms, your subwoofer is designed to handle low frequencies. Setting your main speakers to small will direct the lower fq's to the sub. This is not only easier on your main speakers, but easier on the amplifier as well as it will not have to process those signals.


This is a pretty standard setting for HT's, even if you have speakers capable of handling low fq.
 

·
Registered
Joined
·
16,945 Posts

Quote:
Originally Posted by rhaezorblue /forum/post/15526475


Why would having the full range of sound being sent to the main speakers be a bad thing?

Because most speakers cannot truly reproduce a full-range signal. Why set them to SMALL? Because setting them to SMALL will send the lower frequencies to a subwoofer; a speaker designed and equipped specifically for reproducing lower frequencies. Because, when relieved of the burden of having to amplify or reproduce the lower freqencies, both the receiver's amps and the speakers' woofers will be able to more cleanly and accurately reproduce the range of frequencies that they ARE asked to amplify and reproduce.


Quote:
Originally Posted by rhaezorblue /forum/post/15526475


To be honest I don't really understand what changing the "crossover" does in plain terms, or what the difference of 40Hz or 100Hz or what that means..

Then you need to do a bit of online research. There are "stickied" threads at the top of some of the audio subforums, here, devoted specifically to the type of questions you are asking.


Quote:
Originally Posted by rhaezorblue /forum/post/15526475


edit: also, I believe have the Bass Out set to Both.. as in main speakers and subwoofer.

You should not need to use this setting. Do you (really) understand what this setting does? If you set all the speaker sizes to SMALL, you should no longer be able to apply this setting. This setting requires that your front speakers be set to LARGE.
 
1 - 10 of 10 Posts
Top