Official Rythmik Audio Subwoofer thread - Page 822 - AVS Forum | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!



Forum Jump: 
 2033Likes
Reply
 
Thread Tools
post #24631 of 24653 Old Today, 09:13 AM
Senior Member
 
citsur86's Avatar
 
Join Date: Jan 2009
Location: NJ
Posts: 486
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 273 Post(s)
Liked: 68
I recently purchased and began using an LV12R. I have a pretty large room and i have to set the sub at around 3 o'clock on the volume knob to get it to -6db through Pioneers MCACC EQ. Then I boost it up between -3 and 0. But it outputs plenty of bass for my likings. As soon as my UMIK-1 mic comes today, I'll be putting it through REW.

==============================
FS: Proficient GL6 Center Channel Speaker
==============================

My Current "Living Room" Home Theater!
==============================
citsur86 is online now  
Sponsored Links
Advertisement
 
post #24632 of 24653 Old Today, 09:14 AM
Member
 
Join Date: Jul 2014
Location: Ga
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 0
Quote:
Originally Posted by tvuong View Post
Why do you turn Audyssey off? Don't like how it sounds? Depends on what master volume level you were listening at, turning DynEQ off might suck the life out of the bass and you do that with Audyssey off which also reduces bass IME. Try with Audyssey and DynEq on. Once calibrated, you don't want to touch the Rythmik volume knob but only increase the sub trim via your Denon audio menu if you want more bass. What level did Audyssey set your LFE at?
The reason that your Polk seems to be louder is that it has higher distortion.

I have tried both DynEQ on and off. What would you suggest I keep the volume knob at by default before increasing the trim? Audyssey LFE was -12 (bottom), which seems to be a big part of the issue. I couldnt find where to change that at. I only found a place to setup speakers manually. Im still learning this receiver a bit, so I may be overlooking some obvious settings to some.
thinksmartpc is offline  
post #24633 of 24653 Old Today, 09:19 AM
Member
 
Join Date: Jul 2014
Location: Ga
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 0
Quote:
Originally Posted by ndabunka View Post
Before you dig into the sub tuning, you might want to flip the phase 180 degrees as that could be the ONLY issue here if your cheaper sub sounds more viseral.
Ok, Ill try that when I get home. I just feel there is something simple Im missing.

Quote:
Originally Posted by citsur86 View Post
I recently purchased and began using an LV12R. I have a pretty large room and i have to set the sub at around 3 o'clock on the volume knob to get it to -6db through Pioneers MCACC EQ. Then I boost it up between -3 and 0. But it outputs plenty of bass for my likings. As soon as my UMIK-1 mic comes today, I'll be putting it through REW.
What size room do you have? Ill play around with the settings and suggestions Im getting tonight and Ill update the thread. Im thinking about running Audyssey once more, because I just read an article on Denon's site that said you have to turn the subwoofer to "yes" before running Audyssey because the receiver doesnt automatically detect the sub is present.
thinksmartpc is offline  
post #24634 of 24653 Old Today, 09:19 AM
AVS Addicted Member
 
PlasmaPZ80U's Avatar
 
Join Date: Feb 2009
Posts: 10,548
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 1548 Post(s)
Liked: 464
Quote:
Originally Posted by thinksmartpc View Post
Quote:
Originally Posted by PlasmaPZ80U View Post
Do you have REW and a calibrated usb mic? Or is there an AVS user who lives nearby who could help you with that?

One new Rythmik F12 owner just went through a similar issue and after proper placement and setup/calibration, he went from wanting to return it to hugely impressed by it.

By the way, I have the LV12R and a 12' by 12' by 8' room too and I'm getting very satisfying results, so in time you should be able to as well.

I'd say placement and sub EQ are critical otherwise you may end up with huge peaks and nulls/dips in a square room.

My sub is on the left wall, midwall and MLP is about 8-9ft to the right of it, about 3-4ft from the right midwall.

I dont. Do you mind telling me the settings you are using even though your AVR might be different? Im going to play with placement some more this weekend. I have tried the left and right side of my front stage at about 4 feet from either side and around 18 inches from the back wall. Im going to try it on the right and left side as well. I may end up doing the old crawl around test as well. I know the potential of this sub, because during the train scene in Super 8 it almost brought the house down with deep and accurate bass. I just have to find that again.
Try the sub crawl, but also make sure the sub is in phase with the LCRs and make sure to add 3dB to 6dB to the sub trim in AVR post Audyssey. And leave Audyssey and Dynamic EQ on.

Setting all speakers to small and 80Hz crossover is a good starting point too.

If you are willing to, spending $100 on a UMIK-1 calibrated usb mic and downloading the free REW software will help you maximize performance from your entire system, including the sub.

And if Audyssey isn't doing the best sub EQ in your case (you can check this via REW after optimizing placement), then getting a MiniDSP 2x4 unbalanced or HD will let you EQ the sub with a great deal of control and flexibility).

My Yamaha AVR doesn't do any sub EQ, so I use REW+MiniDSP 2x4 unbalanced+UMIK-1 and get a very flat frequency response from 19Hz to 100Hz with the sub connected via Line In.

On the sub, I set bass extension to low and crossover to 80Hz and LPF slope to 24dB (the latter 2 items are just personal preference and specific to my room's acoustics/placement/setup... YMMV).

In my case, I have to set phase/delay to 180 degrees/10ms, since my YPAO doesn't compensate for my sub being out of phase with the LCRs.

Though I would recommend the following settings on the sub in most cases:

Bass Extension: Low
Crossover: 120Hz
LPF Slope: 12dB
Phase/Delay: 0 degrees/0ms
Volume/Gain: 12 o'clock or higher so that Audyssey puts it -6dB to -10dB

After running Audyssey, you can change bass extension to mid or high if desired, particularly for music and you can switch LPF slope to 24dB if desired.

(This is all with the Line In input(s), but you can use LFE input if you don't need the phase/delay, crossover, or LPF slope controls.)
PlasmaPZ80U is online now  
post #24635 of 24653 Old Today, 09:23 AM
AVS Special Member
 
JimWilson's Avatar
 
Join Date: Oct 2010
Location: Somewhere in New Joisey
Posts: 6,210
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1050 Post(s)
Liked: 1257
Quote:
Originally Posted by thinksmartpc View Post
Audyssey LFE was -12 (bottom), which seems to be a big part of the issue. I couldnt find where to change that at.
-12dB is Audyseey's way of saying the gain (volume) on the subwoofer is too high and it can't get an accurate reading. Give the dial a sizable turn counter clockwise and run it again. Keep doing that until the setting is no higher than -10dB, but around -5dB is better.

If you take yourself too seriously, expect me to do the exact opposite
JimWilson is online now  
post #24636 of 24653 Old Today, 09:24 AM
Member
 
Join Date: Jul 2014
Location: Ga
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 0
Quote:
Originally Posted by PlasmaPZ80U View Post
Try the sub crawl, but also make sure the sub is in phase with the LCRs and make sure to add 3dB to 6dB to the sub trim in AVR post Audyssey. And leave Audyssey and Dynamic EQ on.

Setting all speakers to small and 80Hz crossover is a good starting point too.

If you are willing to, spending $100 on a UMIK-1 calibrated usb mic and downloading the free REW software will help you maximize performance from your entire system, including the sub.

And if Audyssey isn't doing the best sub EQ in your case (you can check this via REW after optimizing placement), then getting a MiniDSP 2x4 unbalanced or HD will let you EQ the sub with a great deal of control and flexibility).

My Yamaha AVR doesn't do any sub EQ, so I use REW+MiniDSP 2x4 unbalanced+UMIK-1 and get a very flat frequency response from 19Hz to 100Hz with the sub connected via Line In.

On the sub, I set bass extension to low and crossover to 80Hz and LPF slope to 24dB (the latter 2 items are just personal preference and specific to my room's acoustics/placement/setup... YMMV).

In my case, I have to set phase/delay to 180 degrees/10ms, since my YPAO doesn't compensate for my sub being out of phase with the LCRs.

Though I would recommend the following settings on the sub in most cases:

Bass Extension: Low
Crossover: 120Hz
LPF Slope: 12dB
Phase/Delay: 0 degrees/0ms
Volume/Gain: 12 o'clock or higher so that Audyssey puts it -6dB to -10dB

After running Audyssey, you can change bass extension to mid or high if desired, particularly for music and you can switch LPF slope to 24dB if desired.

(This is all with the Line In input(s), but you can use LFE input if you don't need the phase/delay, crossover, or LPF slope controls.)

Thanks for all the great info. Im going to run Audyssey first and see what level I get again. I found out through Denon that their recevier's dont automatically set the sub to "yes" before running Audyssey even if one is present. Im still learning this receiver. I have only had it for a few weeks. Summer is in full swing still around here, so time has been limited. I am going to put some time in tonight with yours and the other suggestions. Ill update as soon as I have some information. I truly appreciate it.
thinksmartpc is offline  
post #24637 of 24653 Old Today, 09:26 AM
AVS Addicted Member
 
PlasmaPZ80U's Avatar
 
Join Date: Feb 2009
Posts: 10,548
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 1548 Post(s)
Liked: 464
Quote:
Originally Posted by citsur86 View Post
I recently purchased and began using an LV12R. I have a pretty large room and i have to set the sub at around 3 o'clock on the volume knob to get it to -6db through Pioneers MCACC EQ. Then I boost it up between -3 and 0. But it outputs plenty of bass for my likings. As soon as my UMIK-1 mic comes today, I'll be putting it through REW.
I'm interested in seeing how your current setup measures. You'll also be able to do compression sweeps like I did yesterday to see what max clean SPL at 20Hz your sub in your room can do. Just remember that the LFE channel measures in REW don't include the 3-5dB that bass management adds.

It does include running the sub hot, however, and a full range CC+sub measurement can show you exactly how hot your sub is running relative to the midrange (500Hz to 2kHz region).
PlasmaPZ80U is online now  
post #24638 of 24653 Old Today, 09:46 AM
Senior Member
 
citsur86's Avatar
 
Join Date: Jan 2009
Location: NJ
Posts: 486
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 273 Post(s)
Liked: 68
Quote:
Originally Posted by thinksmartpc View Post
What size room do you have? Ill play around with the settings and suggestions Im getting tonight and Ill update the thread. Im thinking about running Audyssey once more, because I just read an article on Denon's site that said you have to turn the subwoofer to "yes" before running Audyssey because the receiver doesnt automatically detect the sub is present.
The room is open to my living room and dining room so its actually VERY large. I haven't measured but I would eyeball it at 25' wide x 30'+ long - not including the open dining room - pics at the link in my sig. But the sub puts out nice bass to the point where I can feel punchy scenes like in dark knight, and definitely shakes the whole first floor (which again is open).

==============================
FS: Proficient GL6 Center Channel Speaker
==============================

My Current "Living Room" Home Theater!
==============================
citsur86 is online now  
post #24639 of 24653 Old Today, 10:39 AM
AVS Special Member
 
Alan P's Avatar
 
Join Date: Jan 2003
Location: South Dakota
Posts: 7,829
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 3715 Post(s)
Liked: 2463
Quote:
Originally Posted by thinksmartpc View Post
I did try it with Audyssey and DynEq ON and OFF. Off is definitely terrible for good reason, but I wanted to make sure I covered all my bases. The Audyssey set it to -12 which is the lowest and quite possibly the issue. When I manually change it to -6 instead of -12, Audyssey still shows it at -12. I cant seem to change the Audyssey setting unless I do another setup. This Denon is new to me, so I could be missing something.

Audyssey set my crossovers, I thought at little high, at 100hz. I did change them manually, but as I explained above about the sub. I cant find where to change the Audyssey settings manually or if that's possible without running Audyssey again.

The sub is place on the left side of my front stage about 4 feet from the left wall and 18 inches from the back wall. I have tried the right side as well.

The bass seems to be lacking on both sides, but Im convinced it's a calibration issue at this point.
You change the speaker trims under SPEAKERS>MANUAL>LEVELS and crossovers under SPEAKERS>MANUAL>CROSSOVERS.

As others have pointed out, -12dB is the lower limit and you need to re-run Audyssey until you get "in range". Here is my quick and dirty single sub set up procedure with Audyssey:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Set the gain on the sub to around 12:00-2:00 (just a starting point, gain structure can vary greatly from one manufacturer to another). Set phase to "0".

1. Connect sub and place it at the MLP
2. Do the sub crawl to determine the best location
3. Place sub in that location
4. Run Audyssey, first mic position only and "calculate"
5. Look to see where Audyssey has set your sub trim, you want it to be around -6dB to -8dB ideally
6. Adjust the gain on the sub up or down as needed
7. Repeat 4-6 until you get the sub trim around -6dB to -8dB
8. Run the full Audyssey calibration
9. Set all speakers to "small"
10. Set all speaker crossovers to 80hz (or, if set higher than 80hz by Audyssey, leave them alone)
11. Bump up the sub trim by 3db to 6db to your preference
12. Enjoy!

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Quote:
Originally Posted by thinksmartpc View Post
I have tried both DynEQ on and off. What would you suggest I keep the volume knob at by default before increasing the trim? Audyssey LFE was -12 (bottom), which seems to be a big part of the issue. I couldnt find where to change that at. I only found a place to setup speakers manually. Im still learning this receiver a bit, so I may be overlooking some obvious settings to some.
The volume knob needs to be wherever you end up after my set up procedure outlined above.

You would benefit greatly by thoroughly reading the Audyssey 101 and FAQ linked in my sig.

EDIT: Oh, and never lower a crossover set by Audyssey, this is covered in the FAQ.
Foundation42 likes this.
Alan P is online now  
post #24640 of 24653 Old Today, 10:48 AM
Member
 
Join Date: Jul 2014
Location: Ga
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 0
Quote:
Originally Posted by Alan P View Post
You change the speaker trims under SPEAKERS>MANUAL>LEVELS and crossovers under SPEAKERS>MANUAL>CROSSOVERS.

As others have pointed out, -12dB is the lower limit and you need to re-run Audyssey until you get "in range". Here is my quick and dirty single sub set up procedure with Audyssey:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Set the gain on the sub to around 12:00-2:00 (just a starting point, gain structure can vary greatly from one manufacturer to another). Set phase to "0".

1. Connect sub and place it at the MLP
2. Do the sub crawl to determine the best location
3. Place sub in that location
4. Run Audyssey, first mic position only and "calculate"
5. Look to see where Audyssey has set your sub trim, you want it to be around -6dB to -8dB ideally
6. Adjust the gain on the sub up or down as needed
7. Repeat 4-6 until you get the sub trim around -6dB to -8dB
8. Run the full Audyssey calibration
9. Set all speakers to "small"
10. Set all speaker crossovers to 80hz (or, if set higher than 80hz by Audyssey, leave them alone)
11. Bump up the sub trim by 3db to 6db to your preference
12. Enjoy!

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>



The volume knob needs to be wherever you end up after my set up procedure outlined above.

You would benefit greatly by thoroughly reading the Audyssey 101 and FAQ linked in my sig.

EDIT: Oh, and never lower a crossover set by Audyssey, this is covered in the FAQ.

Thanks for all the info. Im going to carve out some time tonight to set things up. Ill update everyone on what I find out.
thinksmartpc is offline  
post #24641 of 24653 Old Today, 12:24 PM
AVS Special Member
 
bear123's Avatar
 
Join Date: Dec 2013
Location: PA
Posts: 4,696
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 1518 Post(s)
Liked: 2205
Quote:
Originally Posted by citsur86 View Post
So I have the sub at +6db from what MCACC set it to, and I was listening probably a bit under reference. Is that not reasonable? Also the more I've read about this this morning, the more I see its rare and only present in a handful of movies. Have you watched Edge of Tomorrow with your normal settings? No issues?


First thing I would do is adjust your avr so that your MV displays in terms of reference level rather than a random number.

Now lets consider things as though you were listening at reference level. Reference level requires the sub to produce peak output of up to 115 dB. You are calibrated 6 dB hot, so now you are asking your sub to playback up to 121 dB. Now add in bass redirected from other channels on top of that.....potentially another 5 dB. What do you think your entry level $500 ported sub is going to do when you ask it to reproduce low frequency effects in excess of 120 dB? Hint: Rythmiks highest output sub, the FV15HP, is good for about 107 dB at 20 Hz.


Sent from my iPhone using Tapatalk
bear123 is online now  
post #24642 of 24653 Old Today, 12:28 PM
Senior Member
 
citsur86's Avatar
 
Join Date: Jan 2009
Location: NJ
Posts: 486
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 273 Post(s)
Liked: 68
Quote:
Originally Posted by bear123 View Post
First thing I would do is adjust your avr so that your MV displays in terms of reference level rather than a random number.

Now lets consider things as though you were listening at reference level. Reference level requires the sub to produce peak output of up to 115 dB. You are calibrated 6 dB hot, so now you are asking your sub to playback up to 121 dB. Now add in bass redirected from other channels on top of that.....potentially another 5 dB. What do you think your entry level $500 ported sub is going to do when you ask it to reproduce low frequency effects in excess of 120 dB? Hint: Rythmiks highest output sub, the FV15HP, is good for about 107 dB at 20 Hz.


Sent from my iPhone using Tapatalk

As much as I would love to, I cannot make the AVR show relative volume so that I can get a reference level. I spent hours searching for how to do this only to find my ELITE (yeah right) VSX-44 can only display volume from 0-80.

So yeah - i didn't know that movie had that part or I would have turned it down ahead of time. It handles most things fine running between 3-6db hot. My point is that its a bit scary a random part of a movie, unbeknownst to me, could do that to my speakers.
Alan P and newc33 like this.

==============================
FS: Proficient GL6 Center Channel Speaker
==============================

My Current "Living Room" Home Theater!
==============================
citsur86 is online now  
post #24643 of 24653 Old Today, 12:36 PM
Advanced Member
 
ndabunka's Avatar
 
Join Date: Aug 2004
Posts: 864
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Liked: 14
Quote:
Originally Posted by citsur86 View Post
As much as I would love to, I cannot make the AVR show relative volume so that I can get a reference level. I spent hours searching for how to do this only to find my ELITE (yeah right) VSX-44 can only display volume from 0-80
You could always attempt to "old school" it to find the reference level. Determine what your speakers are rated for (e.g. 88dB @ 1 meter). Pick up a cheap SPL meter from radio shack (or whatever is around these days). Set it 1 meter away with a reference tone playing and watch the measurements. When you see that 88dB, you have found the reference level on your AVR.

Experts here can correct me if I am mis-stating this

From time to time, the Gene Pool could use a little chlorine ...
ndabunka is online now  
post #24644 of 24653 Old Today, 01:33 PM
AVS Special Member
 
Alan P's Avatar
 
Join Date: Jan 2003
Location: South Dakota
Posts: 7,829
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 3715 Post(s)
Liked: 2463
Quote:
Originally Posted by ndabunka View Post
You could always attempt to "old school" it to find the reference level. Determine what your speakers are rated for (e.g. 88dB @ 1 meter). Pick up a cheap SPL meter from radio shack (or whatever is around these days). Set it 1 meter away with a reference tone playing and watch the measurements. When you see that 88dB, you have found the reference level on your AVR.

Experts here can correct me if I am mis-stating this
Or, just find a -20dBfs test tone (Disney WOW disc is a good one) and play it through the system. When you see 85dB on the SPL meter (at the MLP), you're at Reference.

Of course, citsur86 now has REW so it's even easier. Just output -23dBfs pink noise (speaker cal) to CH3 (CC+subs), when the REW SPL meter registers 85dB, that MV level is Reference.
Alan P is online now  
post #24645 of 24653 Old Today, 01:41 PM
Advanced Member
 
bkeeler10's Avatar
 
Join Date: Mar 2008
Location: Utah
Posts: 740
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 268 Post(s)
Liked: 144
Quote:
Originally Posted by ndabunka View Post
You could always attempt to "old school" it to find the reference level. Determine what your speakers are rated for (e.g. 88dB @ 1 meter). Pick up a cheap SPL meter from radio shack (or whatever is around these days). Set it 1 meter away with a reference tone playing and watch the measurements. When you see that 88dB, you have found the reference level on your AVR.

Experts here can correct me if I am mis-stating this
Much simpler than that. Reference level on the master volume control will be the level at which a reference tone playing through a single speaker shows 75 dB at the listening position. You would have to find a source for this reference level signal. And to be strictly accurate, you'd probably want to disable bass management for this test too.

REW has tones (such as pink noise), and I believe you can set the output level to match reference, though I'm not sure. Wherever you get the signal, turn it on and make sure only one speaker is playing. Since you have REW, you can use it to measure SPL, with the mic placed at the listening position. With the signal playing and REW measuring SPL, adjust the master volume control until you read 75 dB. That will be reference. Then check that all other speakers are at the same level (which MCACC should have done for you already).

After having done all this, and determined, for example, that reference level is 60, you still don't know how many dB below reference level you are if you set the volume to 55. But you could certainly determine this by measuring SPL with the volume at 55 to see how many dB below 75 dB you measure.

bkeeler10 is online now  
post #24646 of 24653 Old Today, 01:44 PM
Advanced Member
 
bkeeler10's Avatar
 
Join Date: Mar 2008
Location: Utah
Posts: 740
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 268 Post(s)
Liked: 144
Quote:
Originally Posted by Alan P View Post
Or, just find a -20dBfs test tone (Disney WOW disc is a good one) and play it through the system. When you see 85dB on the SPL meter (at the MLP), you're at Reference.
Okay, maybe it's 85 dB with a reference level tone . . .

Quote:
Of course, citsur86 now has REW so it's even easier. Just output -23dBfs pink noise (speaker cal) to CH3 (CC+subs), when the REW SPL meter registers 85dB, that MV level is Reference.
Did you mean -20 dBfs pink noise?

bkeeler10 is online now  
post #24647 of 24653 Old Today, 01:48 PM
AVS Addicted Member
 
PlasmaPZ80U's Avatar
 
Join Date: Feb 2009
Posts: 10,548
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 1548 Post(s)
Liked: 464
Just use the AVR built in manual test tone for 75dB.
PlasmaPZ80U is online now  
post #24648 of 24653 Old Today, 02:04 PM
AVS Special Member
 
newc33's Avatar
 
Join Date: Feb 2013
Location: lasalle-peru illinois
Posts: 1,723
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 462 Post(s)
Liked: 481
Quote:
Originally Posted by citsur86 View Post
As much as I would love to, I cannot make the AVR show relative volume so that I can get a reference level. I spent hours searching for how to do this only to find my ELITE (yeah right) VSX-44 can only display volume from 0-80.

So yeah - i didn't know that movie had that part or I would have turned it down ahead of time. It handles most things fine running between 3-6db hot. My point is that its a bit scary a random part of a movie, unbeknownst to me, could do that to my speakers.
I felt the same as you when I first purchased my lv12r (which I still have) I was always worried about large peaks in movies bottoming the little guy out. The lv12r actually handles itself very well around its max output. One day I played the pulse server room scene louder and louder until the green light on the amp started blinking which meant the limiter was engaging. There was little port chuffing which suprised me. It was inaudible at MLP.

So I went and bought dual fv15hps which was a huge upgrade but in my large open room I still worried about some movies when listening loud. Never have I heard the fvs bottom or distort or chuff even (I ran mine 18hz mode) it seems the limiters work very well.

Now I have a sealed room with dual gamma21s and dual psa s3600is and let me tell ya, volume is no longer an issue its a very nice feeling!

7.2 w/ denon x4100
JTR noesis 228s LCR
Ascend acoustics cmt 340se side ss.
ascend acoustics cbm170se rear ss
dual reaction audio gamma 21s!
newc33 is online now  
post #24649 of 24653 Old Today, 02:05 PM
AVS Special Member
 
Alan P's Avatar
 
Join Date: Jan 2003
Location: South Dakota
Posts: 7,829
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 3715 Post(s)
Liked: 2463
Quote:
Originally Posted by bkeeler10 View Post
Okay, maybe it's 85 dB with a reference level tone . . .



Did you mean -20 dBfs pink noise?
Nope, -23dBfs. REW starts at -3dBfs and goes down from there. So, if you want to measure actual Reference it would be at -3dBfs...if you don't want to bust an eardrum, -20dB or -30dB is safer.


Quote:
Originally Posted by PlasmaPZ80U View Post
Just use the AVR built in manual test tone for 75dB.
If the AVR allows you to adjust volume during test tones. Not all do.
Alan P is online now  
post #24650 of 24653 Old Today, 02:11 PM
Advanced Member
 
ndabunka's Avatar
 
Join Date: Aug 2004
Posts: 864
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Liked: 14
Quote:
Originally Posted by Alan P View Post
Nope, -23dBfs. REW starts at -3dBfs and goes down from there. So, if you want to measure actual Reference it would be at -3dBfs...if you don't want to bust an eardrum, -20dB or -30dB is safer.

If the AVR allows you to adjust volume during test tones. Not all do.
I would doubt that an AVR that ONLY shows zero-to-80 would be unlikely to have such a function.

Note: I find it "funny" that I tell the guy that he can use an SPL meter and little more than a test tone and then others say "It's EASIER than that" and then they go on about REW and other software which is obviously more complicated. In this case, the guy asking DOES have such hardware but the presentation is the humor. I say "just do X" and someone else says that he can do XY&Z which is ...simpiler..LOL

From time to time, the Gene Pool could use a little chlorine ...

Last edited by ndabunka; Today at 02:17 PM.
ndabunka is online now  
post #24651 of 24653 Old Today, 02:12 PM
AVS Special Member
 
newc33's Avatar
 
Join Date: Feb 2013
Location: lasalle-peru illinois
Posts: 1,723
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 462 Post(s)
Liked: 481
To add to my post above it wasn't meant to take anything away from the rythmiks. I wasn't implying that the don't have power compared to psa or RA. It's just a different room with a completely different layout.

Love my rythmik subs!

I just have a horrible obsession with trying different brand and gear.
I could have a 100 percent good experience with brand A but still choose brand B when upgrade time rolls around. Idk it's just how I am lol

7.2 w/ denon x4100
JTR noesis 228s LCR
Ascend acoustics cmt 340se side ss.
ascend acoustics cbm170se rear ss
dual reaction audio gamma 21s!
newc33 is online now  
post #24652 of 24653 Old Today, 02:38 PM
AVS Special Member
 
Alan P's Avatar
 
Join Date: Jan 2003
Location: South Dakota
Posts: 7,829
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 3715 Post(s)
Liked: 2463
Quote:
Originally Posted by ndabunka View Post
I would doubt that an AVR that ONLY shows zero-to-80 would be unlikely to have such a function.


I can't tell from this statement if you are saying his AVR probably does have this function or probably does not have this function.


Quote:
Note: I find it "funny" that I tell the guy that he can use an SPL meter and little more than a test tone and then others say "It's EASIER than that" and then they go on about REW and other software which is obviously more complicated. In this case, the guy asking DOES have such hardware but the presentation is the humor. I say "just do X" and someone else says that he can do XY&Z which is ...simpiler..LOL
Well, not only would it be easier for the OP, but much more accurate then trusting published sensitivity specs that were taken either ground-plane or anechoic and then trying to extrapolate them to in-room response.
Alan P is online now  
post #24653 of 24653 Old Today, 02:59 PM
AVS Special Member
 
newc33's Avatar
 
Join Date: Feb 2013
Location: lasalle-peru illinois
Posts: 1,723
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 462 Post(s)
Liked: 481
Quote:
Originally Posted by ndabunka View Post
. I say "just do X" and someone else says that he can do XY&Z which is ...simpiler..LOL
Welcome to avs forum!

7.2 w/ denon x4100
JTR noesis 228s LCR
Ascend acoustics cmt 340se side ss.
ascend acoustics cbm170se rear ss
dual reaction audio gamma 21s!
newc33 is online now  
Sponsored Links
Advertisement
 
Reply Subwoofers, Bass, and Transducers

Tags
f12g subwoofer , lv12r , Rythmik , Rythmik Audio , Rythmik Audio F12 Direct Servo Subwoofer , Rythmik Audio F15 Subwoofer , servo sub



Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off