Official Rythmik Audio Subwoofer thread - Page 1278 - AVS Forum | Home Theater Discussions And Reviews
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post #38311 of 39430 Old 05-12-2019, 10:58 AM
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Originally Posted by dinamigym View Post
Hi Jim,

LOL! Maybe I just am a very poor judge of sound quality, which is totally possible, but after playing around with my Dirac Live calibrations a bit I think it sounds pretty darn good. Definitely a challenge...I will say I could never get a good result when I tried using Audyssey but Dirac seems to allow me the flexibility to play with it enough to where I'm pretty happy (or at least can live) with the mess until I can get the speakers all on the same page !

Paul
Magico, Revel and Wisdom cannot be used in the same sentence as "very poor judge of sound quality". That's an oxymoron along the lines of government intelligence, jumbo shrimp and freezer burn. Me thinks you have discerning tastes.
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post #38312 of 39430 Old 05-12-2019, 11:09 AM
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Originally Posted by JimWilson View Post
Magico, Revel and Wisdom cannot be used in the same sentence as "very poor judge of sound quality". That's an oxymoron along the lines of government intelligence, jumbo shrimp and freezer burn. Me thinks you have discerning tastes.
Too many good speakers in the same room However, I would sell the Revel and Wisdoms, keep the Magico A3s and get a Magico SCC Center and Magico S1.5s for Surrounds and Rear Surrounds. Just my 2 cents
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post #38313 of 39430 Old 05-12-2019, 11:20 AM
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Originally Posted by muscles View Post
You absolutely cannot go wrong with any of these. The G25HP's are the best sounding subwoofers I have ever heard. They are the closest thing to perfect I have ever experienced. If you do 50/50 music/movies you should go with those. If you lean towards more music than movies you could get away with a smaller sealed sub. I plan on using the F18's for as long as I live here and once I move, if I get a bigger house, I will move them to a bedroom/office and see what Rythmik has down the line.


Greg
I'm very curious to see how the F18 compare to your previous subs like JL and SVS.
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post #38314 of 39430 Old 05-12-2019, 11:59 AM
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Originally Posted by xcjago View Post
I'm very curious to see how the F18 compare to your previous subs like JL and SVS.
He has done that comparison with the G25 - there was no comparison. The Rythmik blew them out of the water/sky/space.
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post #38315 of 39430 Old 05-12-2019, 12:34 PM
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Originally Posted by enricoclaudio View Post
Too many good speakers in the same room However, I would sell the Revel and Wisdoms, keep the Magico A3s and get a Magico SCC Center and Magico S1.5s for Surrounds and Rear Surrounds. Just my 2 cents
Lord...that would make the most sense and also might get me divorced! I'll have to weigh the pros and cons of that! Ha
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post #38316 of 39430 Old 05-12-2019, 12:47 PM
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He has done that comparison with the G25 - there was no comparison. The Rythmik blew them out of the water/sky/space.
Yes I know. But the F18 has 4dB less output than the G25, so it should be closer.
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post #38317 of 39430 Old 05-12-2019, 12:50 PM
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Yes I know. But the F18 has 4dB less output than the G25, so it should be closer.
I’m not sure if it was necessarily based on output but rather sound quality.
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post #38318 of 39430 Old 05-12-2019, 12:52 PM
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Originally Posted by JimWilson View Post
Magico, Revel and Wisdom cannot be used in the same sentence as "very poor judge of sound quality". That's an oxymoron along the lines of government intelligence, jumbo shrimp and freezer burn. Me thinks you have discerning tastes.

So I guess you are politely telling me to stay away from an audio review career?
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post #38319 of 39430 Old 05-12-2019, 02:02 PM
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If I tried front and back before option 3A ....would you recommend centered on front and back wall or one side center speaker and one side of where STS currently is?
Thanks Again
If you can center the front sub as speaker stand for your center speaker, then I would definitely try the front and back mid wall placements. This might do it. How big is the room?
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post #38320 of 39430 Old 05-12-2019, 02:05 PM
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Originally Posted by tvuong View Post
If you can center the front sub as speaker stand for your center speaker, then I would definitely try the front and back mid wall placements. This might do it. How big is the room?


Room is 15’ wide 28’ long 8’ ceiling


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post #38321 of 39430 Old 05-12-2019, 02:18 PM
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So my subs are arriving tomorrow. Although I have a dedicated media room, due to the size of the FV25s I only really have two location options...

1. One is laying on their sides in between the Left & Right Front speakers and center (pic 1):

2. Two is laying on side or standing upright in back of room where Wisdom STS is currently at (pic 2):

From reading obviously it would be ideal to move them around and take measurements but the aisle up the left side is pretty tight so that would be very difficult to do.

Any suggestions on where to best try first...front or back?

Also, since both subs are in identical and will be equidistant from the MPL in either location would a Minidsp 2x4 still be recommended?

PS Due to the size of the STS I only had one option with that so there was no thought or measurement as to where that is currently located.

Thanks Much - Paul
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If you can center the front sub as speaker stand for your center speaker, then I would definitely try the front and back mid wall placements. This might do it. How big is the room?
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Originally Posted by dinamigym View Post
Room is 15’ wide 28’ long 8’ ceiling


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That's a very nice room, and a very nice system!

I was debating whether or not to say something, but Tony's post helped me to decide. I agree with the idea of trying center wall for your subwoofer, with one in front and one in back. There may be other arrangements that will work better, but that would be my starting point. But, I have also been looking at the height of your center channel and wanting to comment on it.

I'm sure that you have the CC angled-up slightly toward your listening height, but if you could raise it to just below the viewing height of your screen, I think it would improve both your overall sound quality and the dialogue clarity. Most tweeters have very poor vertical dispersion characteristics, and the higher frequencies can be very important for imaging for some instruments, and for hard to hear dialogue.

Regards,
Mike
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post #38322 of 39430 Old 05-12-2019, 02:35 PM
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Originally Posted by mthomas47 View Post
That's a very nice room, and a very nice system!

I was debating whether or not to say something, but Tony's post helped me to decide. I agree with the idea of trying center wall for your subwoofer, with one in front and one in back. There may be other arrangements that will work better, but that would be my starting point. But, I have also been looking at the height of your center channel and wanting to comment on it.

I'm sure that you have the CC angled-up slightly toward your listening height, but if you could raise it to just below the viewing height of your screen, I think it would improve both your overall sound quality and the dialogue clarity. Most tweeters have very poor vertical dispersion characteristics, and the higher frequencies can be very important for imaging for some instruments, and for hard to hear dialogue.

Regards,
Mike
Ha! Never debate Mike...Fire away. Your input is always of tremendous value & greatly appreciated. I'm thinking if I center the sub maybe trying to use it as the stand for the Center channel as Tony mentioned. That would add about 10" of height to it. I'm hoping that would still leave it at an ok height relative to the screen. I'm going to give it a shot. Thanks Much
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post #38323 of 39430 Old 05-12-2019, 05:11 PM
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@enricoclaudio - question for you. A friend of mine was over my house today. He has a couple of FV15HPs. He told me he tested with a magnetometer to see how much of a magnetic field is created around the subwoofer or in the room it resides. He said within a foot of it, even in standby, the magnetometer was pinned at max. Not sure exactly what that means or what the measurement units even are. Question is more so if you know if there’s any potential danger in the magnetic field the subs create within close proximity. I ask because I have a couple small children often pulling themselves up on or near the subs. I think it’s more of a danger for things like hard drives and credit cards, if anything at all, but I figured I’d ask.

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post #38324 of 39430 Old 05-12-2019, 05:22 PM
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I've narrowed my search for sub(s) to dual L12s or SVS SB-2000s, or a single vented option from Rythmik, HSU or PSA. Having never heard a Rythmik sub in person, I'm basing my interest in them entirely from this message board and other online sources.

Attached is the current layout of my space. With some open areas and a shared wall in my townhouse, I hesitate to go too big or dig too deep. Will two L12s suffice? I listen to music 60%, movies/TV 40%; Denon x1100; rarely exceed medium listening levels. This will be my first big sub purchase, besides the wimpy sub that came with my Q Acoustics 5.0 speakers. I've already decided ID is the route I want to take, will dual L12s work well in this scenario?? I don't think I'd use the extra features of the F12 and can only fit one vented sub if I go that route. Thanks.
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post #38325 of 39430 Old 05-12-2019, 05:44 PM
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@enricoclaudio - question for you. A friend of mine was over my house today. He has a couple of FV15HPs. He told me he tested with a magnetometer to see how much of a magnetic field is created around the subwoofer or in the room it resides. He said within a foot of it, even in standby, the magnetometer was pinned at max. Not sure exactly what that means or what the measurement units even are. Question is more so if you know if there’s any potential danger in the magnetic field the subs create within close proximity. I ask because I have a couple small children often pulling themselves up on or near the subs. I think it’s more of a danger for things like hard drives and credit cards, if anything at all, but I figured I’d ask.
Magnetic fields caused by speakers and subwoofers are not dangerous for humans. It could cause issues on CRT monitors but I don't think you have a CRT monitor or CRT TV in your house. Hard drives since mid 2000s are not too sensible to magnetic fields. Credit cards neither as most credit and debit cards now use chips instead of magnetic bands.
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post #38326 of 39430 Old 05-12-2019, 05:45 PM
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Originally Posted by enricoclaudio View Post
Magnetic fields caused by speakers and subwoofers are not dangerous for humans. It could cause issues on CRT monitors but I don't think you have a CRT monitor or CRT TV in your house. Hard drives since mid 2000s are not too sensible to magnetic fields. Credit cards neither as most credit and debit cards now use chips instead of magnetic bands.


That’s what I thought. Just wanted to make sure. Thanks for the response.

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post #38327 of 39430 Old 05-12-2019, 06:14 PM
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@enricoclaudio - question for you. A friend of mine was over my house today. He has a couple of FV15HPs. He told me he tested with a magnetometer to see how much of a magnetic field is created around the subwoofer or in the room it resides. He said within a foot of it, even in standby, the magnetometer was pinned at max. Not sure exactly what that means or what the measurement units even are. Question is more so if you know if there’s any potential danger in the magnetic field the subs create within close proximity. I ask because I have a couple small children often pulling themselves up on or near the subs. I think it’s more of a danger for things like hard drives and credit cards, if anything at all, but I figured I’d ask.
You might want to read the following: https://www.cancer.gov/about-cancer/...lds-fact-sheet "What have studies shown about possible associations between non-ionizing EMFs and cancer in children?" It might be wise to get more accurate readings on the field strength. If it were me I'd err on the side of caution and keep your little ones away from the subs or leave the subs off until you check things out. I'm certainly no expert on the subject...

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post #38328 of 39430 Old 05-12-2019, 06:21 PM
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You might want to read the following: https://www.cancer.gov/about-cancer/...lds-fact-sheet "What have studies shown about possible associations between non-ionizing EMFs and cancer in children?" It might be wise to get more accurate readings on the field strength. If it were me I'd err on the side of caution and keep your little ones away from the subs or leave the subs off until you check things out. I'm certainly no expert on the subject...

The magnets are there whether they’re on or not. But I’ve done some reading today and it seems like a microwave outputs much more potentially harmful EMF than the subwoofer would. Will do more research just to be 100% sure.

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post #38329 of 39430 Old 05-12-2019, 06:25 PM
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The magnets are there whether they’re on or not. But I’ve done some reading today and it seems like a microwave outputs much more potentially harmful EMF than the subwoofer would. Will do more research just to be 100% sure.
Hmmm, I guess I was thinking about when its playing and the field is not static. In any case I wouldn't want to have any regrets over not making sure, that's just a bit of well spent research time, IMO

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post #38330 of 39430 Old 05-12-2019, 07:10 PM
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Originally Posted by enricoclaudio View Post
Magnetic fields caused by speakers and subwoofers are not dangerous for humans. It could cause issues on CRT monitors but I don't think you have a CRT monitor or CRT TV in your house. Hard drives since mid 2000s are not too sensible to magnetic fields. Credit cards neither as most credit and debit cards now use chips instead of magnetic bands.

Big +1

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@enricoclaudio - question for you. A friend of mine was over my house today. He has a couple of FV15HPs. He told me he tested with a magnetometer to see how much of a magnetic field is created around the subwoofer or in the room it resides. He said within a foot of it, even in standby, the magnetometer was pinned at max. Not sure exactly what that means or what the measurement units even are. Question is more so if you know if there’s any potential danger in the magnetic field the subs create within close proximity. I ask because I have a couple small children often pulling themselves up on or near the subs. I think it’s more of a danger for things like hard drives and credit cards, if anything at all, but I figured I’d ask.
For the magnetitic field reading, more likely from the Big Magnet used in quality subs now a day.
In my DIY days, I did built a double 12" subwoofer to be use as a TV stand for CRT monitor.
The only way I could remedy the magnetitic field, was to put a 1/8" sheet of metal between two sheet of plywood.

Not require now a day, due to the change of monitors technologies. That no longer rely on CRT display.
And also like "enricoclaudio" mention, is not dangerous for us and our Pets, even slipping on the subs like my Cats do.


Darth

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post #38331 of 39430 Old 05-13-2019, 03:57 AM
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That's a very nice room, and a very nice system!
I'm sure that you have the CC angled-up slightly toward your listening height, but if you could raise it to just below the viewing height of your screen, I think it would improve both your overall sound quality and the dialogue clarity. Most tweeters have very poor vertical dispersion characteristics, and the higher frequencies can be very important for imaging for some instruments, and for hard to hear dialogue.

Regards,
Mike
Though my room and setup in no way compares to yours, I would second this suggestion. I'm currently using an Emotiva C2 as my center with a pair of Philharmonic BMRs as my F LR (waiting on a Selah center kit designed to match the BMRs to be finished). I've a low and wide (two component wide) rack below my display which is mounted on the wall to be fairly close to eye height just below mid-height of the screen. The top of the rack is about 20" below the bottom of the display. I initially had the C2 sitting on the shelf, angled up. I ordered a desktop riser that fits on the top of the rack and puts the top edge of C2 just below (about 1/2 inch) the bottom of the display. "Night and day" is over used (so I won't use it) but the difference was both immediately noticeable (especially after rerunning Audyssey) and a great improvement over both intelligibility of dialogue as well as integration with the LRs.
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post #38332 of 39430 Old 05-13-2019, 05:41 AM
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Though my room and setup in no way compares to yours, I would second this suggestion. I'm currently using an Emotiva C2 as my center with a pair of Philharmonic BMRs as my F LR (waiting on a Selah center kit designed to match the BMRs to be finished). I've a low and wide (two component wide) rack below my display which is mounted on the wall to be fairly close to eye height just below mid-height of the screen. The top of the rack is about 20" below the bottom of the display. I initially had the C2 sitting on the shelf, angled up. I ordered a desktop riser that fits on the top of the rack and puts the top edge of C2 just below (about 1/2 inch) the bottom of the display. "Night and day" is over used (so I won't use it) but the difference was both immediately noticeable (especially after rerunning Audyssey) and a great improvement over both intelligibility of dialogue as well as integration with the LRs.
Thank you. After you all suggested I looked at it much closer last night when I went down to watch GOT. It definitely currently sits very low so I'm anxious to see what happens when I raise it tonight/tomorrow. I do also wonder why revel chose that height for the stand as it would seem to me that it would sit low in most cases.
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post #38333 of 39430 Old 05-13-2019, 09:49 AM
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So I had like 2 hrs to play with the fv25hp. I'm at a lost for word of this things shakes my house. The only thing is the blackhole I have in my house seems to suck the frequency. I spend 1 hour moving it inch by inch to multiple places (thank you pads provided by Rythmik) and yet I have awesome sound and then nothing like nothing lol I have no idea maybe my living is cursed or something but I ask if anyone has a idea or something to try I will. Thanks ahead sincerely a noob

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Sorry, I'm late to the party here, but yes, I experienced this same thing when I set up my FV18's last fall, so you're definitely not crazy... I started combing through the forums here, reading and experimenting with various calibrations (Audyssey) and manual sub settings and have made considerable progress... I finally made it to the point where I was ready to start learning REW, when I had to tear the theater room apart due to a leak in the wall (apparently I hit a drain pipe with a nail last year while putting in the home theater)... I have someone coming in this week to start patching up the wall, and then i get back to the important stuff, like learning REW and how to fine tune subs.... :-)

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post #38334 of 39430 Old 05-13-2019, 10:51 AM
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And so it begins!!!
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post #38335 of 39430 Old 05-13-2019, 11:20 AM
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Me too! Got them gain matched now need to run the room correction and start tweaking.

Gonna start with the front corners and see how it measures. This is how the wife wants it so might have to wait until she forgets about them to move them around.
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post #38336 of 39430 Old 05-13-2019, 11:23 AM
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Me too! Got them gain matched now need to run the room correction and start tweaking.



Gonna start with the front corners and see how it measures. This is how the wife wants it so might have to wait until she forgets about them to move them around.


Congrats! Looks awesome! Did you use a minidsp to gain match?


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post #38337 of 39430 Old 05-13-2019, 11:24 AM
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Congrats! Looks awesome! Did you use a minidsp to gain match?


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Mini DSP umik and REW.
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post #38338 of 39430 Old 05-13-2019, 11:25 AM
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Just need the wife to get rid of those dang mirrors. She won’t budge.
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post #38339 of 39430 Old 05-13-2019, 11:25 AM
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Isn't level-matching preferred over gain-matching? You want all speakers at 75dB going into calibrations.

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post #38340 of 39430 Old 05-13-2019, 11:26 AM
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I’ve read cases for both. This is a starting point and a learning experience for me.

My reasoning was if I get into a nice house curve or BEQ I don’t one to be working 10x harder or running out of steam before the other one.
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Last edited by jsc79; 05-13-2019 at 11:35 AM.
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