Official Rythmik Audio Subwoofer thread - Page 703 - AVS Forum | Home Theater Discussions And Reviews
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post #21061 of 30527 Old 10-16-2015, 07:58 AM
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Originally Posted by DonH50 View Post
It's also another example of just how great Rythmik's customer service is...
+1, I experienced that first hand

Great tech support too
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post #21062 of 30527 Old 10-16-2015, 09:37 AM
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It's also another example of just how great Rythmik's customer service is...
Hate to think what it cost them just because one insert was stripped.
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post #21063 of 30527 Old 10-16-2015, 09:57 AM
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Originally Posted by Bond 007 View Post
Hate to think what it cost them just because one insert was stripped.
Or, How many new customers it will bring to Rythmik because of their commitment to customer service? Definitely above and beyond care.
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post #21064 of 30527 Old 10-16-2015, 10:42 AM
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Quote:
Originally Posted by Bond 007 View Post
Quote:
Originally Posted by DonH50 View Post
It's also another example of just how great Rythmik's customer service is...
Hate to think what it cost them just because one insert was stripped.
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Originally Posted by klh007 View Post
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Originally Posted by Bond 007 View Post
Hate to think what it cost them just because one insert was stripped.
Or, How many new customers it will bring to Rythmik because of their commitment to customer service? Definitely above and beyond care.
I'm more inclined to believe the latter. While some might consider it minor, I wasn't prepared to settle on never being able to use the feet on a brand new $600 sub.

And it's my understanding if the amp and driver are indeed working normally they will be sold separately as b-stock. The enclosure will end up as junk. I suppose fixing the insert is either not possible or simply not worth the time or effort in the grand scheme of things.
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post #21065 of 30527 Old 10-16-2015, 11:39 AM
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Originally Posted by PlasmaPZ80U View Post
I'm more inclined to believe the latter. While some might consider it minor, I wasn't prepared to settle on never being able to use the feet on a brand new $600 sub.

And it's my understanding if the amp and driver are indeed working normally they will be sold separately as b-stock. The enclosure will end up as junk. I suppose fixing the insert is either not possible or simply not worth the time or effort in the grand scheme of things.
Wouldnt expect you to settle.
The cost of the enclosure, shipping 2 subs to you, shipping one back, labor and time is a big expense when you consider the insert probably costs less than $1.
No wonder Rhythmik is keen to make sure it doesnt happen again.
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post #21066 of 30527 Old 10-16-2015, 12:14 PM
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Originally Posted by Bond 007 View Post
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Originally Posted by PlasmaPZ80U View Post
I'm more inclined to believe the latter. While some might consider it minor, I wasn't prepared to settle on never being able to use the feet on a brand new $600 sub.

And it's my understanding if the amp and driver are indeed working normally they will be sold separately as b-stock. The enclosure will end up as junk. I suppose fixing the insert is either not possible or simply not worth the time or effort in the grand scheme of things.
The cost of the enclosure, shipping 2 subs to you, shipping one back, labor and time is a big expense when you consider the insert probably costs less than $1.
No wonder Rhythmik is keen to make sure it doesnt happen again.
I agree
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post #21067 of 30527 Old 10-17-2015, 06:27 AM
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Is there a particular technique for removing the grill from these subs? Or do you simply get each of the corners loose one at a time and then carefully pull the whole grill off?

Same for putting it back on?

Last edited by PlasmaPZ80U; 10-17-2015 at 09:25 AM.
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post #21068 of 30527 Old 10-17-2015, 09:08 AM
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Also, switching from 12dB to 24dB LPF slope (and back) made a noise while the amp was in the on position. Line In L+R was connected and AVR/MiniDSP/TV/source device were on but with no audio playing when flipping the switch.

Does this mean the amp should be off when adjusting the knobs/switches?
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post #21069 of 30527 Old 10-17-2015, 11:33 AM
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I don't know if the grills for your model are removable (but many others have one so can help).

When you are switching gain and filter stages in and out I am not surprised there is a pop. If it is not real loud I would not worry. It should definitely be off when plugging and unplugging cables (like any other component).

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post #21070 of 30527 Old 10-17-2015, 01:03 PM
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Originally Posted by DonH50 View Post
I don't know if the grills for your model are removable (but many others have one so can help).

When you are switching gain and filter stages in and out I am not surprised there is a pop. If it is not real loud I would not worry. It should definitely be off when plugging and unplugging cables (like any other component).
Ok, thanks

It wasn't real loud but was noticeable since no audio was playing at the time. Of course, I turn off the amp before unplugging or plugging the power cord or rca cables or even when changing the MiniDSP configuration.
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post #21071 of 30527 Old 10-17-2015, 02:54 PM
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Would the L12 be sufficient for a room thats a bit under 2700 cu ft? 60/40 Music/HT. Room will be closed off from other areas of the house.
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post #21072 of 30527 Old 10-17-2015, 03:33 PM
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Would the L12 be sufficient for a room thats a bit under 2700 cu ft? 60/40 Music/HT. Room will be closed off from other areas of the house.
That's probably stretching it a bit. You might need to consider something larger in order to get acceptable response.
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post #21073 of 30527 Old 10-17-2015, 08:36 PM
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Would the L12 be sufficient for a room thats a bit under 2700 cu ft? 60/40 Music/HT. Room will be closed off from other areas of the house.
It depends on how loud you listen. My wife thinks my 12" sub is more than enough for my secondary living room system that is at least 8000ft^3.
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post #21074 of 30527 Old 10-18-2015, 12:22 AM
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That's probably stretching it a bit. You might need to consider something larger in order to get acceptable response.
I can't recommend enough the proper placement of two subs. Get 2 L12s
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post #21075 of 30527 Old 10-18-2015, 06:17 AM
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Would the L12 be sufficient for a room thats a bit under 2700 cu ft? 60/40 Music/HT. Room will be closed off from other areas of the house.
Two L12s or a L22 should do the trick... a single L12 might not cut it, especially for HT.

An LV12R should be like 2 L12s around 20Hz and in mid or high extension/damping modes should be plenty articulate for music. I have one and mid is my preference for movies. Though high might be even better for music (but not movies in my experience).
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post #21076 of 30527 Old 10-18-2015, 08:12 AM
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It depends on how loud you listen. My wife thinks my 12" sub is more than enough for my secondary living room system that is at least 8000ft^3.
Key words being "my wife".

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post #21077 of 30527 Old 10-18-2015, 11:33 AM
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I just bought the rocketfish surge protector to connect all my gears. And it has some features that when the main component got shut off, all others will automatically shuts off. (Not idle/standby) question is is that features safe for my LV12R? When its off there is no red color. Or better to leave it on idle/srandby with the color red on?ty

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post #21078 of 30527 Old 10-18-2015, 03:50 PM
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Originally Posted by PlasmaPZ80U View Post
Two L12s or a L22 should do the trick... a single L12 might not cut it, especially for HT.
While an L22 is a beast, you don't get the ability to eliminate bass issues in your room by placing subs across the room from each other. That's why based on my experience I advocate that approach so much
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post #21079 of 30527 Old 10-18-2015, 05:29 PM
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Two L12s or a L22 should do the trick... a single L12 might not cut it, especially for HT.
While an L22 is a beast, you don't get the ability to eliminate bass issues in your room by placing subs across the room from each other. That's why based on my experience I advocate that approach so much
Good point, but doesn't stacking two 12 inch subs (or L22) give 6dB more output vs. just 3dB more output with subs in opposite corners or walls of the room?
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post #21080 of 30527 Old 10-18-2015, 06:32 PM
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When dealing with a larger room, subs being spread out really can help smooth the freq response. When I cut one of mine off and test the chart doesnt look great at all, but is improved nicely with two spread out. Have a 7-8db dip removed is a lot more important than the 6db you may or may not gain.
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post #21081 of 30527 Old 10-18-2015, 07:23 PM
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Guess who has a F25 headed his way this week?
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post #21082 of 30527 Old 10-18-2015, 09:03 PM
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Good point, but doesn't stacking two 12 inch subs (or L22) give 6dB more output vs. just 3dB more output with subs in opposite corners or walls of the room?
The total output gain is the same either way, but putting both of them in the same place defeats the purpose. IMO two L12s or LV12s in the same place is a waste and a single F15HP or FV15HP would have been a better choice.

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post #21083 of 30527 Old 10-18-2015, 09:21 PM
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The total output gain is the same either way, but putting both of them in the same place defeats the purpose. IMO two L12s or LV12s in the same place is a waste and a single F15HP or FV15HP would have been a better choice.
+1
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post #21084 of 30527 Old 10-19-2015, 06:25 AM
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That's probably stretching it a bit. You might need to consider something larger in order to get acceptable response.
That's essentially the response I got for Rythmik's customer service (great response time, even on a a weekend). They, like others above, recommended an LV12R or L22. I may still go with a single L12 for now and plan to add a second when finances allow, unless the single L12 proves sufficient for my needs. I'm not in the 2700 cu. ft. room yet, but I'll be upgrading from a DefTech Prosub 1000, so I'm sure there will be a marked improvement over what I have now.
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post #21085 of 30527 Old 10-19-2015, 06:40 AM
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Originally Posted by gadgtfreek View Post
When dealing with a larger room, subs being spread out really can help smooth the freq response. When I cut one of mine off and test the chart doesnt look great at all, but is improved nicely with two spread out. Have a 7-8db dip removed is a lot more important than the 6db you may or may not gain.
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The total output gain is the same either way, but putting both of them in the same place defeats the purpose. IMO two L12s or LV12s in the same place is a waste and a single F15HP or FV15HP would have been a better choice.
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+1
On second thought, you guys are right; with two matching subs you can do whatever you want, which allows for much great setup flexibility.

However, my point had more to do with someone in a situation closer to mine, where there may not be optimal placement options for dual subs and dual subs would likely end up side by side or stacked vertically. In that case, an L22 or LV12R might be cheaper and more convenient to setup.

My sub/sat and MLP placement is far from optimal, though I mainly have to deal with two peaks... so I can EQ myself out of that hole pretty well. Not best practices for sure, but the best I can do without converting my small bedroom into a small theater.
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Current Setup REW FR measures

UN46EH6030 Calibration/Settings

Samsung UN46EH6030; Yamaha RX-A2070, SVS Prime Bookshelf Mains and Prime Center, Sony SS-CS5 Surrounds, Cambridge S20 Rear Surrounds, Rythmik LV12R; PS4 Slim, Xbox One, Xfinity X1
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post #21086 of 30527 Old 10-19-2015, 07:58 AM
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On second thought, you guys are right; with two matching subs you can do whatever you want, which allows for much great setup flexibility.

However, my point had more to do with someone in a situation closer to mine, where there may not be optimal placement options for dual subs and dual subs would likely end up side by side or stacked vertically. In that case, an L22 or LV12R might be cheaper and more convenient to setup.

My sub/sat and MLP placement is far from optimal, though I mainly have to deal with two peaks... so I can EQ myself out of that hole pretty well. Not best practices for sure, but the best I can do without converting my small bedroom into a small theater.
In your case you might look at raising your sub off the floor. what is your ceiling height. I have seen a 70hz dip due to standing waves caused by room height more so then room length, but then it might just be a big 60hz dip your dealing with.
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post #21087 of 30527 Old 10-19-2015, 08:13 AM
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I have the dreaded square room shape: 12' by 12' by 8' high (1152 cubic feet). I believe that is what causes that awful u shaped dip between the two modal peaks. My sub is midwall on the left wall, 7 inches breathing room.

However, using four 'auto pk' filters via REW and my MiniDSP 2x4 unbalanced, I get a pretty sweet house curve. Credit goes to another AVS member for creating the filters (braveheart123).
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post #21088 of 30527 Old 10-19-2015, 10:20 AM
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Quote:
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I have the dreaded square room shape: 12' by 12' by 8' high (1152 cubic feet). I believe that is what causes that awful u shaped dip between the two modal peaks. My sub is midwall on the left wall, 7 inches breathing room.

However, using four 'auto pk' filters via REW and my MiniDSP 2x4 unbalanced, I get a pretty sweet house curve. Credit goes to another AVS member for creating the filters (braveheart123).

The best way to remove that wide U shaped dip is to add another sub. There is no alternative, IMO, to raw flat response. You would require just a filter or two to shape the house curve.

If you can't swing enough cash for another LV12R, then make peace with what you have atm. It should still knock your socks off in that room.

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post #21089 of 30527 Old 10-19-2015, 11:29 AM
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It's not just cash, but also no room for another sub of this size and placement options for smaller subs still far from ideal to get the full benefit from dual subs. Plus added complexity of setup/integration with everything else.

(And I've seen setups on the forum where dual subs didn't make the kind of difference the owner was expecting due to placement restrictions.)


That being said, I don't feel I'm missing anything with the current sub running at its best post-EQ. It sounds awesome. Especially with bass heavy movies like action and horror movies.

Honestly, even if I could have 2 LV12Rs optimally placed and setup/integrated I don't think the bragging rights of being able to say I only used 2 filters would justify the cost since I can't imagine the post-EQ measures looking much better than they are now.

Also, I only have one MLP and single listener only so I don't need to have optimal frequency response over a larger listening area.
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post #21090 of 30527 Old 10-19-2015, 01:06 PM
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Whats the point of having a sub this big if you don't give it a workout every DAMN day!. i find myself listening to OST and orchestra a whole lot more. the FV15HP is truly incredible it really brings an emotional impact to music.


Receiver - Sony STR-DH550
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Center
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Surrounds - Trash
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The Ultimate List of BASS in Movies w/ Frequency Charts Heavy Cinematic | Heavy Electronic|

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