Official Rythmik Audio Subwoofer thread - Page 624 - AVS | Home Theater Discussions And Reviews
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post #18691 of 18705 Old Today, 05:17 AM
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Quote:
Originally Posted by tvuong View Post
Then he can't run REW. Make sure to right click the sound card/property to see if anything is out of whack there. Also click configure on the sound card and then click test to see if audio is sent to speakers.
I am not home to do that. It will be the weekend. Sorry.
The little test jingle works just fine when testing the speakers through the sound card configuration.

Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #18692 of 18705 Old Today, 05:20 AM
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Quote:
Originally Posted by Soulburner View Post
His computer isn't sending the audio to the AVR. Can you show us your Preferences and ASIO windows?
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Originally Posted by steveting99 View Post
JT78681,

What is your mic and playback devices settings saying?

What are the settings on the ASIO4ALL settings saying?
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Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #18693 of 18705 Old Today, 07:50 AM
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I'm puzzled...
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post #18694 of 18705 Old Today, 07:56 AM
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Quote:
Originally Posted by Soulburner View Post
I'm puzzled...
Me too when I run a sweep it shows my headroom at like 39db. Volume on receiver is at -20 when I do it.

Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #18695 of 18705 Old Today, 08:01 AM
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I've been reading a lot of the posts in this thread regarding settings. I still don't really get it. Can anybody fill in the blanks and correct any misconceptions I have?

Low damping = fuller bass (better for HT)
High damping = tighter bass (better for music)

14hz/20hz/28hz - why would you want to filter ANY frequencies?

One port open - digs deeper
Two ports open - more output
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post #18696 of 18705 Old Today, 08:13 AM
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Quote:
Originally Posted by woody777 View Post
I've been reading a lot of the posts in this thread regarding settings. I still don't really get it. Can anybody fill in the blanks and correct any misconceptions I have?

Low damping = fuller bass (better for HT)
High damping = tighter bass (better for music)

14hz/20hz/28hz - why would you want to filter ANY frequencies?

One port open - digs deeper
Two ports open - more output
You pretty much got it. In regards to the frequencies the higher you select the more SPL you will achieve, but at the expense of extension.

Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #18697 of 18705 Old Today, 08:19 AM
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I personally do not see a point to 14/20/28, its 14hz or bust with that setting.

Now One port vs Two port is a thing to test, also depends on room as well as low vs high.

Looking at charts and talking directly with Enrico about my room and intentions (high spl HT playback), I am starting with two ports open, 14hz and Low damping. Considering I am high spl with a 5400 cuft room, the way he described one ports and two ports to me, expecially HT only (two ports extends well to 15hz), I do not need one port plugged.

Once I get the second FV15HP in I will do further experimentation with REW and proceed because I will have mismatched subs right now and dont have the time.

I honestly think if you follow Rythmik's and data-bass's basic recommendations, it will sound great REGARDLESS:

One port open for medium SPL playback
Two ports for high SPL playback

14hz/High for "articulate" or music
14hz/Low for HT

Two be honest once I added the second Hsu sub, I can tell very little difference if any during a high spl movie between 1 port open (lowest xtension) and 2 ports open(highest output)

Also make sure you run auto eq with it set to:

one port open
rumble filter 1
14hz Low Damping

"RoomEQ has the capability to change the frequency
response in the room. EQ can interfere with the
damping settings as damping relates to the time
domain performance. As a result, it is recommended to
set up EQ with the maximum possible extension and
the best damping for sound quality. After EQ has
been set up, one can then adjust the rumble filter,
bass extension and damping settings for the best
compromise between output and sound quality."


And then adjust to whatever mode you wanna use.

Panasonic 65" VT50 / BDP-S6500
Marantz AV7702 / Outlaw Model 7500
Klipsch RF7II (2) and RC64II / Hsu VTF-15H (2)
Panamax MR5100
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post #18698 of 18705 Old Today, 09:27 AM
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Thanks guys! It all makes a lot more sense now... Basically, everything is a trade off between output and extension.

I have a pretty big room... Don't know the exact cubic feet, but it's an open floor plan with vaulted ceilings kind of thing. I assume I fall into the medium SPL category. I'll get a little crazy and watch a movie at -12 if nobody is home (I don't know how you reference people do it). I listen to a lot of music, but I wouldn't call it critical listening.

I think I'll stick with my one port, low damping, 14hz settings. Thanks for the help!
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post #18699 of 18705 Old Today, 09:48 AM
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Sounds like you have a good plan. The room and listening level matter.

Some folks may have a room like mine or larger, but only listen at -15 (15db's below reference) where I watch movies at 0.0 or close.

Panasonic 65" VT50 / BDP-S6500
Marantz AV7702 / Outlaw Model 7500
Klipsch RF7II (2) and RC64II / Hsu VTF-15H (2)
Panamax MR5100
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post #18700 of 18705 Old Today, 10:39 AM
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HPF's are good if you want to limit LF noise from something like a LP vinyl record... There may be other reasons to use 20 Hz or 28 Hz instead of 14 Hz related to source content or room/system characteristics.

"After silence, that which best expresses the inexpressible, is music" - Aldous Huxley
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post #18701 of 18705 Old Today, 11:58 AM
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Quote:
Originally Posted by woody777 View Post
I've been reading a lot of the posts in this thread regarding settings. I still don't really get it. Can anybody fill in the blanks and correct any misconceptions I have?

Low damping = fuller bass (better for HT)
High damping = tighter bass (better for music)

14hz/20hz/28hz - why would you want to filter ANY frequencies?

One port open - digs deeper
Two ports open - more output
The roll-off effects of the Bass Extension controls can be seen here. No right or wrong setting, you get to choose which of the 9 combinations sounds best to you. Choices, FTW.
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post #18702 of 18705 Old Today, 12:41 PM
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The choices are definitely to the user advantage, on the flip side it is intimidating. Saw the same thing with Hsu. One port, Two port or sealed, eq 1 or 2 and a Q knob from 0.3 to 0.7.

This is where it is a good for a newbie to get input from the builder as well. They can give you a good starting point if you describe in detail the room and intended type of use. That is a good place to begin, and then tinker away.

I imagine though, the general recommendation from Rythmik will be like that of Dr Hsu, and be one of the better if not best modes. I spent a lot of time reading this thread the last couple of days for one port vs two and high and low damping.

I came away with as little a plan as when I started, which is why Im gonna go with Enrico's recommendation and build upon it when I have time to test. With a sub as adjustable as this and user preferences, it's hard to get a baseline from the thread. 14hz is a pretty common choice though.

I also bookmarked this so I can use it from time to time to jog my memory the type of affect each setting has on performance.

Rythmik Audio FV15-HP Data-Bass test results


You can also easily compare one port vs two output and THD at each frequency point.

Panasonic 65" VT50 / BDP-S6500
Marantz AV7702 / Outlaw Model 7500
Klipsch RF7II (2) and RC64II / Hsu VTF-15H (2)
Panamax MR5100

Last edited by gadgtfreek; Today at 12:45 PM.
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post #18703 of 18705 Unread Today, 05:56 PM
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Ok the towel is about to be thrown in on taking measurements. I've tried absolutely everything and back tracked yet when running a sweep it still comes out of my laptop speakers even though I've went as far as disabling the laptop speakers altogether. This is a brand new laptop I purchased just for the purpose of taking measurements. #frustrated

Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #18704 of 18705 Unread Today, 06:01 PM
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Quote:
Originally Posted by JT78681 View Post
Ok the towel is about to be thrown in on taking measurements. I've tried absolutely everything and back tracked yet when running a sweep it still comes out of my laptop speakers even though I've went as far as disabling the laptop speakers altogether. This is a brand new laptop I purchased just for the purpose of taking measurements. #frustrated
I feel your pain. I am going to try again tomorrow, just didnt have it in me tonight when I got home. I was pretty pissed last night...

Panasonic 65" VT50 / BDP-S6500
Marantz AV7702 / Outlaw Model 7500
Klipsch RF7II (2) and RC64II / Hsu VTF-15H (2)
Panamax MR5100
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post #18705 of 18705 Unread Today, 06:06 PM
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JT, can you post a screenshot of your REW preference screen with the audio output drop down choice? Also a screenshot of your window sound card default. Is it win7?
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f12g subwoofer , Rythmik , Rythmik Audio , Rythmik Audio F12 Direct Servo Subwoofer , Rythmik Audio F15 Subwoofer , servo sub

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