Official Rythmik Audio Subwoofer thread - Page 559 - AVS Forum | Home Theater Discussions And Reviews
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Old 10-03-2014, 08:41 AM
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Quote:
Originally Posted by Bruce Watson View Post
Looking like... probably not. But maybe. Seems to be kinda sorta in limbo.

The 12 is the one I need. Can't get WAF on the 15, one is just too big, and I'm talking about a pair. And a pair of 15s would be serious overkill for my mid-sized sealed room. So I'll remain hopeful for the FVX12. Time will tell.
Also, for some reason I have doubt that Rythmik will come out with another ported 12 in their line-up.

Display - LG 65EF9500
Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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Old 10-03-2014, 11:57 AM
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Hey guys,

I was initially planning to purchase two FV15HP early next year, but I think I might purchase one now in the next month or two and then the other around March of 2015.

I have a few questions regarding purchasing these subs.

From the moment you hit the order button if the item is not back ordered, how long does it take for the sub to be ready and shipped out?

Also, how long does the purchase of multiple items discount last? Will I need to call in when purchasing the second sub or will the discount be applied at checkout?

Television: Panasonic TC-P65VT60
Receiver: Yamaha RX-A2010
Speakers: Energy RC-70's, RC-LCR, RC-10 (4), JTR Captivator 1400, Rythmik FV15HP (2) and Velodyne VDR-12 (3)
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Old 10-03-2014, 12:31 PM
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Quote:
Originally Posted by ah_1014 View Post
Hey guys,

I was initially planning to purchase two FV15HP early next year, but I think I might purchase one now in the next month or two and then the other around March of 2015.

I have a few questions regarding purchasing these subs.

From the moment you hit the order button if the item is not back ordered, how long does it take for the sub to be ready and shipped out?

Also, how long does the purchase of multiple items discount last? Will I need to call in when purchasing the second sub or will the discount be applied at checkout?
I believe the discount is good for life, so when you buy your next one you'll get it discounted, I'm not sure how it works though? Like how they know your a repeat buyer?. I think it took a few days before the sub was shipped out, pretty fast. If I remember right it took about a week to a week and a half from buying the sub to having it shipped and landed in Canada.

Sierra-2 LCR
HTM-200 rears
Rythmik E15HP
Anthem MRX-300
Samsung 8550 UHD
-$8500ish : (
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Old 10-03-2014, 12:43 PM
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You get a 10% discount for your next purchase. The advantage of buy 2 subs at the same time is you will get 10% off BOTH subs.
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Old 10-03-2014, 12:43 PM
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The discount is for life and Rythmik will have it on file that you are an existing customer.

Display - LG 65EF9500
Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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Old 10-03-2014, 12:46 PM
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I purchased my subs at two different times and received both same day.

Display - LG 65EF9500
Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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Old 10-03-2014, 01:02 PM
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You get a 10% discount for your next purchase. The advantage of buy 2 subs at the same time is you will get 10% off BOTH subs.
I was thinking that as well..

Hmmm, I wonder if I should wait or just buy both at the end of the year lol.. The wait/anticipation is killing me.

I current have 3 12" Velodyne subs and they just don't cut it anymore regarding output and extension. They just can't keep up with my towers at higher volume levels. The subs are pretty flat from 30 - 80hz +/- 2db.

Once I have a 4th subwoofer in the mix i'm certain I can get it completely flat, as long as the Velodyne and the Rythmik's play nicely together. My plan is to have the two FV's at the front and two Velodyne's at the back..

Television: Panasonic TC-P65VT60
Receiver: Yamaha RX-A2010
Speakers: Energy RC-70's, RC-LCR, RC-10 (4), JTR Captivator 1400, Rythmik FV15HP (2) and Velodyne VDR-12 (3)
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Old 10-03-2014, 01:20 PM
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Quote:
Originally Posted by ah_1014 View Post
Hey guys,

I was initially planning to purchase two FV15HP early next year, but I think I might purchase one now in the next month or two and then the other around March of 2015.

I have a few questions regarding purchasing these subs.

From the moment you hit the order button if the item is not back ordered, how long does it take for the sub to be ready and shipped out?

Also, how long does the purchase of multiple items discount last? Will I need to call in when purchasing the second sub or will the discount be applied at checkout?
We usually need 2 - 3 days for shipping then 2 - 4 days for delivery with UPS Ground. We ship from Austin, TX so you can check HERE for delivery transit time.

About discounts, if you buy two subwoofers then you get 10% discount in the total before shipping. If you buy one subwoofer you pay full price but if you buy a second subwoofer before 30 days of your first purchase then you get 10% discount in both subwoofers. We will give you a credit in your second subwoofer purchase equivalent to the 10% of your first purchase (shipping not included) + the 10% discount for your second subwoofer purchase. If you buy a second subwoofer after the first 30 days then you get 10% discount only in your second purchase or future purchases. This discount is what we call "returning customer discount" which doesn't expire. Also we do offer a Military discount of 10% for single subwoofer purchase and 15% discount for multiple subwoofers purchase.



Enrico Castagnetti @ Rythmik Audio
Media Room: Polk LSiM705s, LSiM706C, LSiM703s | Rythmik F12SE (x2) | Marantz SR7008 | Parasound Halo P5 | Emotiva XPA-3 & XPA-200 | Oppo 105D | Sony HW40ES |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Duet | 27" iMac|
Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz NR1606 | Emotiva XPA-200 Gen 2 | Samsung UN50JU6500 |
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Old 10-03-2014, 01:28 PM
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Thank you all for the information..

Now I'm just playing the waiting game. I may just purchase both at the same time to get that extra discount off both Subs.

I live in Toronto, Canada, so I actually plan to have it shipped to the boarder and then pick it up from there. Going to save my self on duty/brokerage. I think I should only be paying tax on the subs since they're built in the US,correct me if I'm wrong.

I may just end up getting them before the end of year, so that will be a Christmas present to myself.

Oh, another question folks, my speakers are black oak, should I stick with oak for the subs or matte? Which one seems to have a better finish?

Television: Panasonic TC-P65VT60
Receiver: Yamaha RX-A2010
Speakers: Energy RC-70's, RC-LCR, RC-10 (4), JTR Captivator 1400, Rythmik FV15HP (2) and Velodyne VDR-12 (3)
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Old 10-03-2014, 02:08 PM
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Quote:
Originally Posted by enricoclaudio View Post
We usually need 2 - 3 days for shipping then 2 - 4 days for delivery with UPS Ground. We ship from Austin, TX so you can check HERE for delivery transit time.

About discounts, if you buy two subwoofers then you get 10% discount in the total before shipping. If you buy one subwoofer you pay full price but if you buy a second subwoofer before 30 days of your first purchase then you get 10% discount in both subwoofers. We will give you a credit in your second subwoofer purchase equivalent to the 10% of your first purchase (shipping not included) + the 10% discount for your second subwoofer purchase. If you buy a second subwoofer after the first 30 days then you get 10% discount only in your second purchase or future purchases. This discount is what we call "returning customer discount" which doesn't expire. Also we do offer a Military discount of 10% for single subwoofer purchase and 15% discount for multiple subwoofers purchase.
Very respectable that you offer a military discount as well.
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Old 10-03-2014, 02:46 PM
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Originally Posted by ah_1014 View Post
Thank you all for the information..

Now I'm just playing the waiting game. I may just purchase both at the same time to get that extra discount off both Subs.

I live in Toronto, Canada, so I actually plan to have it shipped to the boarder and then pick it up from there. Going to save my self on duty/brokerage. I think I should only be paying tax on the subs since they're built in the US,correct me if I'm wrong.

I may just end up getting them before the end of year, so that will be a Christmas present to myself.

Oh, another question folks, my speakers are black oak, should I stick with oak for the subs or matte? Which one seems to have a better finish?

Do you intend to remain with your current speakers for a while? If so, matching Oak would be nice.
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Old 10-03-2014, 02:52 PM
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Very respectable that you offer a military discount as well.

Really great policy! Is that for currently serving, or for all U.S. Veterans?
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Old 10-03-2014, 03:20 PM
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Military discount is for both, currently serving and U.S. Veterans!!!



Enrico Castagnetti @ Rythmik Audio
Media Room: Polk LSiM705s, LSiM706C, LSiM703s | Rythmik F12SE (x2) | Marantz SR7008 | Parasound Halo P5 | Emotiva XPA-3 & XPA-200 | Oppo 105D | Sony HW40ES |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Duet | 27" iMac|
Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz NR1606 | Emotiva XPA-200 Gen 2 | Samsung UN50JU6500 |
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Old 10-03-2014, 09:09 PM
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Do you intend to remain with your current speakers for a while? If so, matching Oak would be nice.
I do plan to have these speakers for at least another 5 years or more. If I do upgrade the speakers I plan to aim for are the Legacy Focus SE with the matching center and bookshelves .. Which is currently way out of my price range lol.. But my god do those speakers look sweet!!


I don't think I can justify almost 20K on a speaker system though, unless I can get a good promotion lol..

Television: Panasonic TC-P65VT60
Receiver: Yamaha RX-A2010
Speakers: Energy RC-70's, RC-LCR, RC-10 (4), JTR Captivator 1400, Rythmik FV15HP (2) and Velodyne VDR-12 (3)
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Old 10-04-2014, 07:14 AM
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I moved into a new place and my sub sounds great and shakes the room but I no longer feel the bass, that punch to the gut is now missing... am I going to have to add another one or need a more powerful sub now? I have the E15HP....

Sierra-2 LCR
HTM-200 rears
Rythmik E15HP
Anthem MRX-300
Samsung 8550 UHD
-$8500ish : (
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Old 10-04-2014, 07:26 AM
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I moved into a new place and my sub sounds great and shakes the room but I no longer feel the bass, that punch to the gut is now missing... am I going to have to add another one or need a more powerful sub now? I have the E15HP....
If its a bigger space and you have placed the sub properly then probably yes.
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Old 10-04-2014, 01:54 PM
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Originally Posted by ah_1014 View Post
I do plan to have these speakers for at least another 5 years or more. If I do upgrade the speakers I plan to aim for are the Legacy Focus SE with the matching center and bookshelves .. Which is currently way out of my price range lol.. But my god do those speakers look sweet!!


I don't think I can justify almost 20K on a speaker system though, unless I can get a good promotion lol..
I heard Legacy Focus SEs once at a local Legacy demo, and I thought they sounded kind of lifeless. I was pretty surprised. They also had a pair of Aeris speakers, and those sounded spectacular. I've seen people say very good things about the Focus SEs, though, so maybe it was the room.

Definitely compare to other options for yourself, at least.
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Old 10-06-2014, 09:04 PM
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RMAF 2014 Room 1107 Salk Sound


One of the selling point of servo based subwoofers is the increased damping of the drivers (3x) so that the servo driver can quickly dissipate the sound energy inside an enclosure and produce a cleaner non-boxy sound. It is a pretty straightforward to do a side-by-side comparison between nonservo version and servo version. That is the reason we come up with the following demo unit and let customers push the cone and feel the increased damping from the servo driver. Since our hand cannot really simulate a 10hz signal, customers just need to push the cone as fast as one can and compare the push-back force from the cone. This year, this unit will be placed in RMAF room 1107. Welcome everyone going to the show to try it out. Servo is not just a buzz word. It is something everyone can "feel" the servo difference.





A full size picture can be found www.rythmikaudio.com/avsforum/servo_comp.jpg
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Old 10-07-2014, 01:32 PM
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If I had both my FV15HP's on the same wall one in the front left corner and one in the back left corner would I get cancellation? The drivers would essentially be facing each other, but about 15 ft away from one another.

Display - LG 65EF9500
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Subs - Rythmik FV15HP's
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Old 10-07-2014, 03:13 PM
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^^ it might, it might not. not the answer you want to hear, but without REW or graph measurements, it is hard to tell. I know you had bought and returned an usb mic as you were having issue getting REW to work. As much as you want to tweak to get the best out of your subs, you really need to get REW working. I know I can't do it by ears.
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Old 10-07-2014, 06:15 PM
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If I had both my FV15HP's on the same wall one in the front left corner and one in the back left corner would I get cancellation? The drivers would essentially be facing each other, but about 15 ft away from one another.
I have found that opposite corners generally works well. You do still need to time align them at the listening position and avoid sitting in a null.
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Old 10-08-2014, 09:09 AM
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Building an F12 into a wall recess - implications?

Hi,

In my future 5.2 HT I plan to place my current F12 into a recess in the wall.

What I am wondering about is:

1. reflection absorption
- what sort of insulation (type and thickness) should I put on the bottom, back, top and sides of the recess to prevent reflections

2. cooling
- how much space between the cabinet and recess walls will be needed and what sort of fan(s) and locations would be needed to prevent the amp in the back of the recess from overheating

3. anything else

Thanks for any and all help


Last edited by rick240; 10-08-2014 at 09:14 AM.
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Old 10-08-2014, 02:15 PM
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Hi,

In my future 5.2 HT I plan to place my current F12 into a recess in the wall.

What I am wondering about is:

1. reflection absorption
- what sort of insulation (type and thickness) should I put on the bottom, back, top and sides of the recess to prevent reflections

2. cooling
- how much space between the cabinet and recess walls will be needed and what sort of fan(s) and locations would be needed to prevent the amp in the back of the recess from overheating

3. anything else

Thanks for any and all help

1- At subwoofer frequencies, the wavelengths are too long to be affected by insulation materials (except for those in the ASC subwoofer tube trap, which sits under a subwoofer), and for "reflections" to be need to be dealt with. Room modes are a different story, but since your sub will be locked into a recess, there is only an electronic solution, like the Anti-Mode products.
2- As long as there are a couple of inches between the plate amp and the wall, you shouldn't have a problem AS LONG AS the space above the amp is open, for the heat to rise.
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Old 10-08-2014, 05:01 PM
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1- At subwoofer frequencies, the wavelengths are too long to be affected by insulation materials (except for those in the ASC subwoofer tube trap, which sits under a subwoofer), and for "reflections" to be need to be dealt with. Room modes are a different story, but since your sub will be locked into a recess, there is only an electronic solution, like the Anti-Mode products.
The material in the ASC trap (or other traps) - if it works placed under a sub, why wouldn't it similarly work if placed to its sides, back and top (leaving only the forward direction un-trapped)? Are you saying that it is not worthwhile?

I plan to have 2 subs, the other will have marginally more placement freedom, but should help in generally balancing bass across the room.

I suspect I will have a pre/pro with XT32 to be able to deal with two subs and room modes.

Quote:
2- As long as there are a couple of inches between the plate amp and the wall, you shouldn't have a problem AS LONG AS the space above the amp is open, for the heat to rise.
But that's it, the space above is also closed - only the forward direction is open. So I expect that I will need a couple of inches all the way around and probably some fans at the up high to push air forward.

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Old 10-08-2014, 05:46 PM
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Originally Posted by rick240 View Post
The material in the ASC trap (or other traps) - if it works placed under a sub, why wouldn't it similarly work if placed to its sides, back and top (leaving only the forward direction un-trapped)? Are you saying that it is not worthwhile?

I plan to have 2 subs, the other will have marginally more placement freedom, but should help in generally balancing bass across the room.

I suspect I will have a pre/pro with XT32 to be able to deal with two subs and room modes.



But that's it, the space above is also closed - only the forward direction is open. So I expect that I will need a couple of inches all the way around and probably some fans at the up high to push air forward.
The acoustic benefit from ASC tube traps is because the traps allow the long-wavelength sound pressure in, turning it into heat inside the contained cylinder. Fiberglass just on the walls will not do that. though it will kill higher-frequency reflections and may damp the walls a little. It will do nothing, however about room modes, standing waves, etc. Those are room-dimension related (and now cubicle recess-related), which are, as I said, unaffected by flat-sheet acoustical material. You can go to the ASC website and read the technical information for a more detailed explanation.
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Old 10-08-2014, 07:02 PM
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@rick240 : If you are building the recessed area, can you leave a couple of inches below and maybe 6" above? You could install a spacer above the amp with a couple of small fans mounted on it to provide airflow. The spacer could be metal or wood painted or stained to taste.

"After silence, that which best expresses the inexpressible, is music" - Aldous Huxley
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Old 10-08-2014, 08:48 PM
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@rick240 : If you are building the recessed area, can you leave a couple of inches below and maybe 6" above? You could install a spacer above the amp with a couple of small fans mounted on it to provide airflow. The spacer could be metal or wood painted or stained to taste.
I figured the amp would likely need more than just natural airflow - and frankly that is what I was coming here for confirmation.

But just wondering how much airflow. Rather than 6" above I was hoping a much smaller space would be adequate. There are plenty of 40mm square fans at the Cooler Guys - 2 or 3 (4 if needed) should provide sufficient airflow out towards the front and pull the hot air from the amp..

So I guess the technical question becomes in an enclosed recessed area, how many CFM of airflow would a Rythmik amp need to be happy?

Then one would have to design baffles to ensure the air flowed in at the bottom and ran past the amp on its path out at the front/top.

Does that make sense? Is it the right approach?

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Old 10-09-2014, 03:53 AM
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Hey Rythmik experts - I just received and installed an FV15HP but I'm wondering if I should have gone with two sealed F15HP subs instead.

My basement room is 3500 cuft open to hallway & stairs so I'm concerned with getting enough SPL. But I listen to music 50% of the time and don't like muddy bass.

At first I tried two ports, 20 hz extension, high damping, rumble filter on. This cause my REW spectrogram to extend out past 1 sec in the 20-30hz region. BTW, the room is treated with seven bass traps from GIK (4 corner tri's and 3 monster traps).

I saw Brian posted somewhere if you want the FV to sound like a sealed sub you should use 1port 14hz extension, high damping, no rumble filter. I tried that and it worked well, keeping the spectrogram below 400ms peaks.

However, this setup is only recommended for "moderate" SPL. If that's the case, why not just use a sealed sub like the F15HP? Or is there some other advantage to a ported sub even if your SPL is reduced?
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Old 10-09-2014, 04:58 AM
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Quote:
Originally Posted by jon_vogel View Post
Hey Rythmik experts - I just received and installed an FV15HP but I'm wondering if I should have gone with two sealed F15HP subs instead.

My basement room is 3500 cuft open to hallway & stairs so I'm concerned with getting enough SPL. But I listen to music 50% of the time and don't like muddy bass.

At first I tried two ports, 20 hz extension, high damping, rumble filter on. This cause my REW spectrogram to extend out past 1 sec in the 20-30hz region. BTW, the room is treated with seven bass traps from GIK (4 corner tri's and 3 monster traps).

I saw Brian posted somewhere if you want the FV to sound like a sealed sub you should use 1port 14hz extension, high damping, no rumble filter. I tried that and it worked well, keeping the spectrogram below 400ms peaks.

However, this setup is only recommended for "moderate" SPL. If that's the case, why not just use a sealed sub like the F15HP? Or is there some other advantage to a ported sub even if your SPL is reduced?
With that size of a space and seeing as how your 50/50 with music and movies you made a good choice on your subwoofer. Myself and another member run our FV's 1 port, mid-dampening, 14hz. I have mine boosted +6 db and they hit hard and clean. Exhaust all placement options and eq before throwing down almost double the cost for 2 F15HP's. Ported subs will yield more output around their tuning points, so below that sealed will have the upper hand. Don't worry though the FV digs deep.....

Display - LG 65EF9500
Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's

Last edited by JT78681; 10-09-2014 at 05:24 AM.
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Old 10-09-2014, 05:09 AM
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Quote:
Originally Posted by rick240 View Post
I figured the amp would likely need more than just natural airflow - and frankly that is what I was coming here for confirmation.

But just wondering how much airflow. Rather than 6" above I was hoping a much smaller space would be adequate. There are plenty of 40mm square fans at the Cooler Guys - 2 or 3 (4 if needed) should provide sufficient airflow out towards the front and pull the hot air from the amp..

So I guess the technical question becomes in an enclosed recessed area, how many CFM of airflow would a Rythmik amp need to be happy?

Then one would have to design baffles to ensure the air flowed in at the bottom and ran past the amp on its path out at the front/top.

Does that make sense? Is it the right approach?
I was thinking larger, slower fans but your approach should be fine. You can always use foam or whatever as gasket material to seal off the sides, perhaps strips pushed near the back of the sub. You can put fans at the bottom to draw in cool air that flows under to the back then out the top, or at the top to draw out warm air (pulling in cool air from the bottom). I prefer the latter as less risk of blowing a bunch of dust into the sub's area, but that also puts the fans blowing out and some people don't care for that. You could make foam baffles to help direct the airflow.

As for airflow across the heatsink, sorry, I've no idea; that's a question for Brian. If he doesn't chime in on this thread you might drop him (or Enrico) an email.

"After silence, that which best expresses the inexpressible, is music" - Aldous Huxley
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f12g subwoofer , lv12r , Rythmik , Rythmik Audio , Rythmik Audio F12 Direct Servo Subwoofer , Rythmik Audio F15 Subwoofer , servo sub
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