Official Rythmik Audio Subwoofer thread - Page 676 - AVS Forum | Home Theater Discussions And Reviews
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post #20251 of 20279 Old 08-31-2015, 02:19 PM
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Quote:
Originally Posted by enricoclaudio View Post
Yes, LFE and LINE IN or Speaker Level Inputs are connected at the same time. Of course you can play only one source at a time, if not both sources will play simultaneously. None of those subwoofers have HPF out. The Only subwoofer with HPF out is the F12 with A370PEQ amp but there is no LFE input in that configuration.
OK, just trying to wrap my head around it.

When just the integrated is playing there will be no LFE so that makes sense.

But when the AVR is using LFE then the subs will ignore the line level inputs from the integrated amp which is being used because of HT Bypass? Or the line level inputs do not matter for some other reason?
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post #20252 of 20279 Old 08-31-2015, 02:24 PM
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Quote:
Originally Posted by artur9 View Post
OK, just trying to wrap my head around it.

When just the integrated is playing there will be no LFE so that makes sense.

But when the AVR is using LFE then the subs will ignore the line level inputs from the integrated amp which is being used because of HT Bypass? Or the line level inputs do not matter for some other reason?
If you have an Integrated amp with a well designed HT Bypass then no signal should come out of the Integrated when HT Bypass is active. That;s definitely something you have to check with the manufacture of your Integrated.

Best Regards,

Enrico Castagnetti
Rythmik Audio

 

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post #20253 of 20279 Old 08-31-2015, 02:33 PM
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Quote:
Originally Posted by enricoclaudio View Post
If you have an Integrated amp with a well designed HT Bypass then no signal should come out of the Integrated when HT Bypass is active. That;s definitely something you have to check with the manufacture of your Integrated.
Yeah, I'll need to check that. The manual doesn't say. I believe in previous testing that the signal does pass through the pre outs in bypass mode. I took advantage of that when I had a Cary Audio which turned subs off when the mains were set to Full.
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post #20254 of 20279 Old 08-31-2015, 07:22 PM
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mini-XRL male cable for compact amp

Does anyone know where to get a premade cable that will plug into the female mini-XLR input of the Rythmik compact amplifier series?

An standard XLR female to male mini-XLR adapter cable would be ideal.

Thanks
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post #20255 of 20279 Old 08-31-2015, 07:38 PM
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Quote:
Originally Posted by enricoclaudio View Post
If you have an Integrated amp with a well designed HT Bypass then no signal should come out of the Integrated when HT Bypass is active. That;s definitely something you have to check with the manufacture of your Integrated.
My old Krell passes signals in bypass mode out the preamplifier jacks. So I'm going to have to come up with another plan
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post #20256 of 20279 Old 08-31-2015, 07:57 PM
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Here is my latest compression sweep for the subs only.. There is a dip/null around 80 hertz that goes away when I use the speakers.. I recently added a 4th FV15HP that I got at a decent price.

For the last sweep, I started at 20hertz since it was already compressed below that.
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post #20257 of 20279 Old 08-31-2015, 08:04 PM
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Quote:
Originally Posted by rak306 View Post
Does anyone know where to get a premade cable that will plug into the female mini-XLR input of the Rythmik compact amplifier series?

An standard XLR female to male mini-XLR adapter cable would be ideal.

Thanks
You can use this one: http://www.bhphotovideo.com/bnh/cont...=REG&A=details

Or buy the 3 Pin Mini XLR Male Connector and a standard XLR female and build your own cable.

http://www.seismicaudiospeakers.com/...FQEcaQodc5kFwQ

http://www.bhphotovideo.com/bnh/cont...Y&A=details&Q=

http://www.amazon.com/Neutrik-NC3FX-...male+connector

Best Regards,

Enrico Castagnetti
Rythmik Audio

 

My Multimedia Room Gallery


Last edited by enricoclaudio; 08-31-2015 at 08:07 PM.
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post #20258 of 20279 Old 08-31-2015, 08:22 PM
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Quote:
Originally Posted by ahmedreda View Post
Here is my latest compression sweep for the subs only.. There is a dip/null around 80 hertz that goes away when I use the speakers.. I recently added a 4th FV15HP that I got at a decent price.

For the last sweep, I started at 20hertz since it was already compressed below that.
4 FVs - super nice. Are they each in a corner of your room? Have updated pix? Can you scale your horizontal to 8-200hz? I assume each higher graph was increased by 5db?

Last edited by tvuong; 08-31-2015 at 08:26 PM.
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post #20259 of 20279 Old 08-31-2015, 08:51 PM
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Quote:
Originally Posted by tvuong View Post
4 FVs - super nice. Are they each in a corner of your room? Have updated pix? Can you scale your horizontal to 8-200hz? I assume each higher graph was increased by 5db?
No I have 2 in the front and 2 stacked in the back.. Yes the last graph was increased by 5 db.. I recaptured the graph with better scaling..


Compression sweeps with better scale:


Here is how I set them up for those interested:
Here are the front 2 and their sum:


Here are the back 2 and their sum:


Here is the front 2 , the back 2 and all 4:

Notice that the sum of the front 2 and the back 2 is less than the back 2 alone after 50 hertz..

I added a LPF for the front subs to cancel their output above 50 hertz.

Here is the back subs and the front subs with the LPF and their sum:


Looks better than when the fronts were active above 50hz. It seems to me that I can use the output of the front subs between 70 and 80 to help get rid of the 10 db dip since there doesn't seem to be a cancellation there.

Before and after eq




I haven't taken pictures yet but planning to take some soon.
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Last edited by ahmedreda; Yesterday at 06:23 AM.
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post #20260 of 20279 Old Yesterday, 07:01 AM
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@ahmedreda ,
Graphs look great!
How does it sound?

Did you also try a 4 corner layout, or was there not room for that?

Your room has really gone into the big leagues!
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post #20261 of 20279 Old Yesterday, 07:20 AM
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Thanks! They sound a lot better than they did with just 3. Now that the back nearfield subwoofers are contributing the majority of the sound they do have a lot more tactile feedback than before. While testing, I had to pause to make sure the crowsons were off at one point.

The front corners are occupied but I did try moving the back subs to the corners but the response was worse in the range I was trying to correct (60-80hz).

My next upgrade would be atmos and I am trying to decide if I want to buy one of the new year models with hdcp 2.2 and dts-x or get one of last years models for cheap since I am not planning on upgrading to 4k for the next 2-3 years at the least. I may wait to hear the reviews for dts-x before I make my decision.


Quote:
Originally Posted by rcohen View Post
@ahmedreda ,
Graphs look great!
How does it sound?

Did you also try a 4 corner layout, or was there not room for that?

Your room has really gone into the big leagues!
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post #20262 of 20279 Old Yesterday, 07:26 AM
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@ahmedreda

Glad you decided to pick-up another FV after all. I decided to just hold onto my FV's since I couldn't really justify upgrading at the time to anything else. I'm waiting patiently to see what Brian has in store as the FV15HP's successor.

Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #20263 of 20279 Old Yesterday, 07:38 AM
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I was in the same position and it made more sense to me to add one more sub. I now more headroom than I need for my listening levels ..

Did Brian give any hints about the FV successor?

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Originally Posted by JT78681 View Post
@ahmedreda

Glad you decided to pick-up another FV after all. I decided to just hold onto my FV's since I couldn't really justify upgrading at the time to anything else. I'm waiting patiently to see what Brian has in store as the FV15HP's successor.
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post #20264 of 20279 Old Yesterday, 07:41 AM
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Quote:
Originally Posted by ahmedreda View Post
I was in the same position and it made more sense to me to add one more sub. I now more headroom than I need for my listening levels ..

Did Brian give any hints about the FV successor?
If my memory serves me correct the last time I was at the shop he mentioned the possibility of adding 18" subs to the line up.

Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #20265 of 20279 Old Yesterday, 07:49 AM
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I think that would be a good move to compete with the rest of the ID sub manufacturers as almost all of them offer 18" subs.
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Originally Posted by JT78681 View Post
If my memory serves me correct the last time I was at the shop he mentioned the possibility of adding 18" subs to the line up.
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post #20266 of 20279 Old Yesterday, 08:44 AM
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Originally Posted by ahmedreda View Post
I think that would be a good move to compete with the rest of the ID sub manufacturers as almost all of them offer 18" subs.
Agreed. I'd be the first one to ask for a unit to review.

If you take yourself too seriously expect me to do the exact opposite
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post #20267 of 20279 Old Yesterday, 08:59 AM
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Ahmed, is the bass localized having 2 stacked in the back? What do you use for LPF? What do you use to Eq subs?
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post #20268 of 20279 Old Yesterday, 09:01 AM
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Quote:
Originally Posted by JT78681 View Post
If my memory serves me correct the last time I was at the shop he mentioned the possibility of adding 18" subs to the line up.
I bet it will be a great sub but what about the price and size?
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post #20269 of 20279 Old Yesterday, 09:14 AM
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Quote:
Originally Posted by tvuong View Post
I bet it will be a great sub but what about the price and size?
I'm thinking ~$2000 shipped, but maybe Brian will chime in and shed some light.

Receiver - Denon 4311CI
Speakers - Klipsch RF-82 II's, RC-62 II, RB-61 II's
Subs - Rythmik FV15HP's
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post #20270 of 20279 Old Yesterday, 09:59 AM
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Quote:
Originally Posted by enricoclaudio View Post
Thanks
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post #20271 of 20279 Old Yesterday, 10:05 AM
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I use a minidsp 2x4..
The bass is not localized as long as I keep the cross under 80hertz.. My MLP is 3-3.5 feet away from the subs.. I think if I had it closer, I would be able to tell it is coming from the sub.

Quote:
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Ahmed, is the bass localized having 2 stacked in the back? What do you use for LPF? What do you use to Eq subs?

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post #20272 of 20279 Old Yesterday, 10:24 AM
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Just minidsp to Eq? With or without auto cal avr?
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post #20273 of 20279 Old Yesterday, 10:31 AM
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I first use the minidsp to eq the basic response (basically just the LPF in this case) then I use dirac live on the minidsp ddrc-88a to eq after that.
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Just minidsp to Eq? With or without auto cal avr?
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post #20274 of 20279 Old Yesterday, 12:47 PM
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^^ cool. Thanks.
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post #20275 of 20279 Old Yesterday, 12:48 PM
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Quote:
Originally Posted by Rythmik View Post
Yes. That is LVX12 with multi-tune feature. The design is complete and they should be in next shipment.
This from "way back" in the middle of July. July and August have come and gone. I'm hoping Brian can give us an update on this while he's in China. Might be easier from there to tell if the LVX12s are being bumped to a later shipment, etc.
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post #20276 of 20279 Old Yesterday, 09:17 PM
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Here are some pictures:
Front:




Back:


After what you mentioned about the localization, I realized that I have 2 of my surrounds crossed at 100 hertz and my back subs were about 1.5 foot off the center of the room so I moved them to the center so at least the sounds 80+ would sound like they are coming from the center rather than from one side..

I was surprised that the frequency response at the new location was MUCH better than the old. I saw a 6-7 dbs increase between 60-80hertz which is the exact region I was having trouble with. Here is the old response without eq vs the new.


I didn't have a chance to rerun dirac but using the old eq settings resulted in a bump in that region rather than a dip or it being flat..


I will try to run Dirac hopefully before the weekend and do another compression test.
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4 FVs - super nice. Are they each in a corner of your room? Have updated pix? Can you scale your horizontal to 8-200hz? I assume each higher graph was increased by 5db?
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post #20277 of 20279 Old Yesterday, 09:28 PM
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^^ nice improvement and I bet it helps with less localization also being at the center. Now run your Dirac cal and you should be flat across the entire range. Please post graph for this (with 8-200hz horizontal scale). Honestly I was expecting a better graph than you first posted having 4 subs. Nice speakers by the way and of course the nice room.

Last edited by tvuong; Yesterday at 09:33 PM.
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Quote:
Originally Posted by tvuong View Post
Just for fun, JT. Edge of Tomorrow at reference MV with +6db subs hot. There was port chuffing but it was not bad. No bad sound was heard at all Again, look at how fast Rythmik puts a brake on the driver. Sorry for the crappy phone video.

https://www.dropbox.com/s/8prrwqwhk0...20hot.MOV?dl=0
I forgot to mention that I has been running +3db low shelf filter centered at 60hz also on top of 6db subs hot. So, the clip was at reference volume with all of these.
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post #20279 of 20279 Old Yesterday, 11:56 PM
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Quote:
Originally Posted by ahmedreda View Post
...

I will try to run Dirac hopefully before the weekend and do another compression test.
ahmedreda,

Are you using the standard auto curve on Dirac Live or a custom curve? If you're going to try the custom curve, be sure to try out Markus Super Duper (MSD) custom curve that basically follows the JBL Synthesis target curve.

Jerry has written a guide in the DDRC-88A thread where one implements speaker groups to allow the Dirac Live correction filters to be in place an octave above and below the crossover point so that the overall sound it is more balanced.

Apparently Dirac Live doesn't do much around the crossover region so Markus has developed a technique to allow better integration between the satellite and subs.

Marantz SR-7009, Oppo BPD-93, MTV 7000D, aTV, WDTV Live, Harmony 650 remote, KEF E301+T101, MiniDSP(2x4) & 10x10HD, Emotiva 2xXPA-5 (Gen2), Rythmik 2xF12G+2xF8, HiMedia Q16, LG 55EC9300.
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