Official Rythmik Audio Subwoofer thread - Page 537 - AVS Forum
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post #16081 of 17233 Old 06-24-2014, 12:04 AM
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Brian already mentioned a page or two back that he won't make fridge size sub, so there's no hope for the FV25hp.
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post #16082 of 17233 Old 06-24-2014, 12:22 AM
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^ tvuong,

A little OT, but your avatar tells me you you're a fan of the world cup. Does the Rythmik sub(s) keep up with the tension in a soccer match? Not sure there's much low frequencies in the game.

NFL is a bit different, especially when the titans collide.

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post #16083 of 17233 Old 06-24-2014, 12:30 AM
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^^ I am a huge NFL fan, Cowboys fan to be exact. To me, there's nothing better than football (NFL and college). I used to play soccer (when I was younger and thinner ). It's just not popular in the states but I do enjoy and watch the every four years World cup. Team US is playing well, I just want to show my support. And no, I just watch the World Cup in my main living room with just TV sound or at a sport bar.
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post #16084 of 17233 Old 06-24-2014, 12:37 AM
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Quote:
Originally Posted by JT78681 View Post
The porting might be a bit challenging. I wonder if he could do a slot port. Perhaps that's more challenging or not feasible without being able to successfully implement the servo technology.
I think the reason most of the moderate sized ID subs do not use slot ports is because the mdf takes up too much internal volume, as much as 10%, whereas the material of tubular ports takes up almost no internal volume. Giant cabs like the Captivators(which are tiny by DIY standards), it does not matter so much because people build the cabs as huge as they need to.

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post #16085 of 17233 Old 06-24-2014, 09:17 AM
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Quote:
Originally Posted by basshead81 View Post
Another thing that would help is to post some cea2010 data for each sub. The 20hz comparison is pretty vague..sure the LV12 might be within 2db @ 20hz of the non hp models, but above and below the tuning point it has to be down several db. If folks were to see this when navigating the website it might help them get a better idea of the subs capability that interests them. Jmo
I never understood the use of Max SPL, If I'm running my system flat. If my MAX @ 20hz is 95db my MAX @ 40hz should be 95db because I'm not going to run my system into compression. I understand headroom but I figured most people want a flat response. I would be more interested to know how loud 16hz is when 64hz is @ 95db's.

Eg. This Rythmik F12 kit to me has a MAX SPL of 92-93db's overall with 10hz @ 83db's (or 10hz at +/- 5 dbs)
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post #16086 of 17233 Old 06-24-2014, 09:30 AM
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Quote:
Originally Posted by Blacklightning View Post
I never understood the use of Max SPL, If I'm running my system flat. If my MAX @ 20hz is 95db my MAX @ 40hz should be 95db because I'm not going to run my system into compression. I understand headroom but I figured most people want a flat response. I would be more interested to know how loud 16hz is when 64hz is @ 95db's.

Eg. This Rythmik F12 kit to me has a MAX SPL of 92-93db's overall with 10hz @ 83db's (or 10hz at +/- 5 dbs)
Because cea2010 offers a way to compare performance on a even playing field. It's nice to know a subs capability before purchasing.
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post #16087 of 17233 Old 06-24-2014, 03:20 PM
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Maybe an F18HP or FV18HP .... imagine the output of that beast

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Originally Posted by tvuong View Post
Brian already mentioned a page or two back that he won't make fridge size sub, so there's no hope for the FV25hp.
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post #16088 of 17233 Old 06-24-2014, 03:27 PM
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F18HP 18" driver with 1,000 watts and Servo Technology
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post #16089 of 17233 Old 06-24-2014, 03:32 PM
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Brian don't listen to all these dreamers..... Keep up the great work!
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post #16090 of 17233 Old 06-24-2014, 03:36 PM
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I understand fully that there are many DIY bassaholics out there that build huge subs and place them all around their rooms. I can't help but wonder, however, about people who are "waiting" for F25HPs or hoping for ported FV25HPs without having heard the current F25. One of these beasts is enough for most people and one is overkill for me. Yet, I have 2 of them in a small room ad I am considering a third at some point in the future, not because I need more bass, but simply to tame the room a bit and allow for even more headroom and even lower distortion at my normal listening levels. Rythmik already makes some pretty special subwoofers. Waiting for a possible future product is taking away from your ability to have very pleasurable bass right now. Just my opinion.
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post #16091 of 17233 Old 06-24-2014, 03:43 PM
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Quote:
Originally Posted by willscary View Post
I understand fully that there are many DIY bassaholics out there that build huge subs and place them all around their rooms. I can't help but wonder, however, about people who are "waiting" for F25HPs or hoping for ported FV25HPs without having heard the current F25. One of these beasts is enough for most people and one is overkill for me. Yet, I have 2 of them in a small room ad I am considering a third at some point in the future, not because I need more bass, but simply to tame the room a bit and allow for even more headroom and even lower distortion at my normal listening levels. Rythmik already makes some pretty special subwoofers. Waiting for a possible future product is taking away from your ability to have very pleasurable bass right now. Just my opinion.
1F25 is overkill for you, yet you have 2, with a eye on a 3rd? If you were not a basshead you would of simply ordered 2-3 F15's and called it good. However you went for the top of the food chain because you are a basshead like the rest of us.

Lets keep it real here, you know you would luv to see a F18HP or something nasty in the pipelineike the rest of us.
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post #16092 of 17233 Old 06-24-2014, 03:50 PM
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You missed my point. What I am saying is that too often I read about people here who are waiting for the next "latest and greatest". Go to the Emotiva area and wade through the posts of people who have been waiting for years for an updated processor. It happens a lot here. Yup, I would love to see newer and better models, but like the old saying "a bird in the hand is worth two in the bush", I feel bad for the legions here that are always waiting for the next one instead of purchasing something now that they can enjoy with the thought that perhaps they will upgrade if something better does actually come along.
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post #16093 of 17233 Old 06-24-2014, 05:03 PM
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Were not waiting for the next big thing before we buy..... we already have Rythmik subs.. we just want more and want it bigger and have the right to say RYTHMIK has a servo 18 !!!
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post #16094 of 17233 Old 06-24-2014, 06:18 PM
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Quote:
Originally Posted by Blacklightning View Post
I never understood the use of Max SPL, If I'm running my system flat. If my MAX @ 20hz is 95db my MAX @ 40hz should be 95db because I'm not going to run my system into compression.
That is not correct. The reason you think that way is you assume all subs are naturally flat, or the spectral content of any music is uniform across frequencies. Just some 30 years ago, there are even argument that there were no need for reproducing signals below 40hz most instruments do not even play that low. So it is perfectly ok for a sub to be able to play 110db at 40hz and 90db at 20hz. It depends on how you use the subwoofer.

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Originally Posted by Blacklightning View Post
I understand headroom but I figured most people want a flat response. I would be more interested to know how loud 16hz is when 64hz is @ 95db's.

There is no correlation in any playback material that you can conclude how much SPL is needed at 16hz when 64hz is @95db. We have been selling the commercial version of this DIY kit for over 10 years now. I have just recently asked what extension setting my customers use. The reply is 14hz. Isn't that counter-intuitive?


Most of us like enjoy the sound reproduction that makes you feel you are at the recording site. That means a lot of detail and ambiance information. Servo preserves the detail of sound and low extension captures the ambiance information. Our sealed subs have this extension setting of 14hz/20hz/28hz. If one compares the sound between those 3 settings, the trend is clear: the lower the bass extension goes, the deeper, wider, taller the sound becomes. That makes the sound more enjoyable and realistic. It is an art of designing a music hall. Invite a band into your family room and playing there is not as enjoyable as the same band playing at a larger space like bar. If one cannot understand this, he has not mastered the art of sound.

Quote:
Originally Posted by Blacklightning View Post
Eg. This Rythmik F12 kit to me has a MAX SPL of 92-93db's overall with 10hz @ 83db's (or 10hz at +/- 5 dbs)

I still remember one well-known subwoofer designer once said, the best bass is no bass. Based on your logic, indeed what he said will be true. The subwoofer with the highest extension gets to play the loudest .


Ilkka didn't explain how to interpret the plots very well. A lot of un-EQed DIY subwoofer with only 40hz extension actually get the best THD numbers. But the problem is when you have a 40hz extension, what you think is a 120db plot is actually only 120-12=108db @20hz and 120-24=98db @10hz.
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Last edited by Rythmik; 06-24-2014 at 07:09 PM.
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post #16095 of 17233 Old 06-25-2014, 06:44 AM
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I'm jumping ship again and switching back to both ports open. I've experimented with both modes and different settings for quite some time now and I always find myself coming back to 2 port mode. To those of you wondering if there is a noticeable difference in output between the two modes. Yes, there is and it's not subtle. If you have a large open room and are looking for a bit more slam I suggest you try running both ports open.

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post #16096 of 17233 Old 06-25-2014, 07:55 AM
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So tempted to hop all over this...... Someone please stop me!

FV15HP B-stock blemish on amp corner
We have one FV15HP black oak with blemish on one amplifier corner. 15% discount. Otherwise, it has brand new enclosure and subwoofer driver with full warranty.
Description: B-stock FV15HP black oakPrice B-stock FV15HP black oak with H600PEQ3 amplifier and multi-tune $1138

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post #16097 of 17233 Old 06-25-2014, 08:08 AM
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Okay I think I'm in the clear. That was a close call!

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post #16098 of 17233 Old 06-25-2014, 08:38 AM
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Quote:
Originally Posted by JT78681 View Post
So tempted to hop all over this...... Someone please stop me!

FV15HP B-stock blemish on amp corner
We have one FV15HP black oak with blemish on one amplifier corner. 15% discount. Otherwise, it has brand new enclosure and subwoofer driver with full warranty.
Description: B-stock FV15HP black oakPrice B-stock FV15HP black oak with H600PEQ3 amplifier and multi-tune $1138
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Okay I think I'm in the clear. That was a close call!
Do it...put one nearfield!
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post #16099 of 17233 Old 06-25-2014, 08:42 AM
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That's it I'm cancelling my membership here.

Receiver - Denon 4311CI
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post #16100 of 17233 Old 06-25-2014, 08:54 AM
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That's it I'm cancelling my membership here.


If you haven't tried your FV's nearfield yet, you're in for a real treat! Not only that, but certainly helps smoothing and headroom as well....and what a great price and no shipping to boot for you!
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post #16101 of 17233 Old 06-25-2014, 11:23 AM
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That is not correct. The reason you think that way is you assume all subs are naturally flat, or the spectral content of any music is uniform across frequencies.

There is no correlation in any playback material that you can conclude how much SPL is needed at 16hz when 64hz is @95db.

Most of us like enjoy the sound reproduction that makes you feel you are at the recording site. That means a lot of detail and ambiance information. Servo preserves the detail of sound and low extension captures the ambiance information.
Thanks for the great response. I will need to do more reading. I'm looking forward to one day own a Rythmik Sub.
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post #16102 of 17233 Old 06-26-2014, 03:49 PM
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*Update

I will be picking up the Onkyo TX-NR1010 for $950 shipped. I just couldn't justify spending an extra $350 for the Denon X4000. This particular model from Onkyo appears to be rock solid with no HDMI issues.

Receiver - Denon 4311CI
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post #16103 of 17233 Old 06-26-2014, 04:08 PM
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*Update

I will be picking up the Onkyo TX-NR1010 for $950 shipped. I just couldn't justify spending an extra $350 for the Denon X4000. This particular model from Onkyo appears to be rock solid with no HDMI issues.
The street price for X4000 has been below $1K for a long time.
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post #16104 of 17233 Old 06-26-2014, 04:09 PM
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The street price for X4000 has been below $1K for a long time.
People keep saying that, but I can't find it anywhere for that cheap.

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post #16105 of 17233 Old 06-26-2014, 04:12 PM
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People keep saying that, but I can't find it anywhere for that cheap.
How about AVS?
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post #16106 of 17233 Old 06-26-2014, 04:15 PM
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How about AVS?

I'll check with them thanks.
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post #16107 of 17233 Old 06-26-2014, 04:19 PM
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Ever since the update I can't seem to find anything. How do I get in touch with a dealer at AVS?
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post #16108 of 17233 Old 06-26-2014, 04:25 PM
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Ever since the update I can't seem to find anything. How do I get in touch with a dealer at AVS?

Hold on...I'll find JD's link.
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post #16109 of 17233 Old 06-26-2014, 04:30 PM
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post #16110 of 17233 Old 06-26-2014, 05:14 PM
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Thanks a lot man! Just emailed him.
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