[Klipsch SW-115 connection problems/question]

Using a Y adaptor to connect the RCA cable to the sub may add 3-10 db. It can also help wake up the sub in standby/sleep mode if it is used. I brought mine for $3.99. Since it is so cheap, why not since we have spent thousands on the other parts of the system. It may also decrease EM interference, buzz or hum and make the sub play better at low levels.

Setting Speakers as Large or Small:

People always ask this question. The answer is very simple. If you own a
subwoofer that outputs good bass sound, you should set all your speakers to
SMALL. In general, if you own a subwoofer, it may be wise to set all your
speakers to small for several reasons:

1. When there is an overlap of bass sound from the front speakers and the
   subwoofer, you will get bloated and boomy bass.
   
2. A subwoofer can play low frequencies all the way down to 20Hz or lower. Even
   relatively large front speakers cannot go that low.
   
3. The placement of a sub in a room is the primary factor in receiving good
   bass sound. You cannot adjust the position of the front speakers and move them
   to the side or back.
   
4. If the subwoofer and the front speakers play the same bass frequencies,
   there will be a possibility of phase cancellation of certain bass frequencies.
   
5. Redirecting the bass to the subwoofer relieves the receiver/amplifier from
   having to work on reproducing the low frequencies and this greatly improves the
   headroom.
   
6. If you are using the Audyssey MultEQ calibration, you will get much better
   bass performance because the MultEQ subwoofer filters have 8x higher resolution
   than the filters for the other speakers.

People have a psycological
difficulty with the word SMALL. They have spent good money on their front
speakers and get insulted when the AVR sets them to SMALL. Remember that this is
not a personal insult against you or your speakers. My Definitive Technology
front speakers have 15" built-in subwoofers with built-in 300 watt amplifiers.
In addition to those, I have six external subwoofers in my HT room. When I set
the front speakers to SMALL, the quality of the sound (both music and movies)
improves.http://forum.blu-ray.com/showthread.php?t=95817

Think of this way, you paid good money for your sub, so use it to it's full potential. IMHO, I favor a single xo for all speakers and a higher xo when using bass management like 80 Hz. I think the multiple xo thing is driven by consumer demand and not science.

I have tried it both ways and can get decent results each way: Large or Small, but the best bass is from my subs.The small setting beats out the Large for music and HT. The 2 10in woofers in the RF 7's is no match for my 15 in. woofer in my PA 150. sub or the 2 12 in. woofers in my Epik Legend with the suface area between a 16-18 in. sub. Even with one sub, physic support the use of bass management. I kinda like telling people those big 250/1000 watt speakers are set to small, lol.

Switching between Large and Small after autocalibration is not the same as running the calibration as Large VS Small due to a change in the EQ'ing. Using bass management and Y connector can increase avr and sub amp headroom.

That is the most helpful and understandable advice I have ever read or received in relation to AVR speaker set-ups!! [Y]

Thank you!

[Klipsch SW-115 connection problems/question]

Thanks! I didn't know that. According to the instruction manual coming from Yamaha for the AVR it says that a speaker with woofer diameter size larger than 16cm (approx. 6,3") should be set to large and speakers with woofers smaller than the 6,3" diameter should be set to small.

What would be a good frequency handover then for the RF7 MKII's?

[Klipsch SW-115 connection problems/question]

Using the Plus or Extra bass feature can lead to boomy bass and cancellations issues. IMHO, it should not be used. Setting all the speakers to small will allow the avr to employ the proper bass management of the system for most people. The bass management system is a large part of the avr's price, so why not use it.

I basically understand and agree with what you are saying Derrick, but then again, with all of the high-tech features in today's AVR's, it just strikes me to have to set a RF7 MKII speaker to small, to be able to get the best solution for the overall speaker set-up incorporating a subwoofer. What would be a large one then in the perspective of today's AVR manufacturers?

Thanks everybody for all of the great input!

[Klipsch SW-115 connection problems/question]

Well, with the Yamaha 2067 you can only activate the extra bass when the front speakers are set to 'large'. This way you activate that all low frequencies below a certain threshold which go to the front speakers are being output by both the subwoofer and the frontspeakers. This does not affect the general .1subwoofer signal nor the crossover to the center and rears which are set as they are to 'small'.

[Klipsch SW-115 connection problems/question]

Thank you so much for this Bill!!

Regarding the extra Bass...only reason for activating this was that I understood that without it being activated the

Sub would only get the low frequencies from the LFE .1 signal and with active extra bass it would also put

through regular low frequencies from the other channels. I thought that this could be an added value for example

for Music DVDs or Blu Rays that could maybe use some extra bass support in the low range although the RF7

does a really good job at it.

Thanks again,

Mark

[Klipsch SW-115 connection problems/question]

Hello Klipsch Community,

I have a wonderful Klipsch Set at home which runs the RF7MKII, RC64MKII, RS62MKII together with a RW-12D that I just recently replaced with a SW-115.

So far so good.

The Signal is coming from a Yamaha RX-V2067 which has a Mono dedicated RCA Sub out. Now, the RW-12D was connected through a Y-Adapter using both RCA inputs.

The Speaker set-up in the Yamaha, sets the front speakers to large which means that there is a dedicated frequency that the sub will only get. I have set the system to Extra Bass which means that the sub also gets those frequencies from other bass signals besides the LFE ones that run on the .1 channel!

Should I use the sub out mono cable and only plug it into the LFE/Left RCA input from the SW-115 or should I keep using the Y-Adapter to go into both RCA inputs, LFE/Left and Right?

Does it make a difference at all?

Thank you so much for your help!!

Mark