Official Rythmik Audio Subwoofer thread - Page 553 - AVS Forum
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post #16561 of 17213 Old 08-29-2014, 06:16 AM
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Quote:
Originally Posted by shaghi View Post
Another thing - if I decide to put together my own sub using one of those flatpack enclosures, will I need to manually eq or run into potential issues regarding sound quality? Or will the direct servo accommodate any imperfections?
You would still benefit from EQ. The servo just reduces distortion. It doesn't compensate for room issues.
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post #16562 of 17213 Old 08-29-2014, 09:45 AM
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The need and ability to EQ, and issues regarding SQ, have nothing to do with whether you buy a fully assembled Rythmik sub or, rather, a DIY Kit and a flat-pack enclosure. The Rythmik plate amp and servo driver do all the work for you either way. You just have to make sure the enclosure is air-tight upon its completed construction. The flat-packs are really well made, and go together easily. Actually, if you get the 4cu.ft. version ($120 each plus shipping. The 3cu.ft. is $90), you will get slightly more output than the Rythmik 3cu.ft. enclosure provides. The reason Rythmik can't sell you an unfinished enclosure is they don't get any from their enclosure supplier (in China). The Rythmik DIY Kit contains all you need for completely assembled subs (driver, plate amp, driver and amp mounting hardware, wiring, enclosure polyfill) apart from everything related to the enclosures themselves. To build the flat-pack you will need wood glue and woodworking clamps, which will cost you about $100 (a gallon of glue and 4-6 24" clamps from Harbor Freight). Then you may want to finish the MDF flat-pack enclosure(s), of course. Figure another $100 or so for primer, paint, sandpaper, etc. Add to that grill cloth, and you can see that you actually may not save any money doing it yourself, and have no guarantee the finished product will look as good as an assembled Rythmik. But if you have any woodworking skills, and you want subs finished in a way Rythmik does not offer, you have the option.


The 1510 driver takes advantage of the higher output of the H600 amp by having greater maximum excursion (cone travel) than the 1501, therefore providing slightly higher SPL. There is nothing to be gained by pairing a 1510 driver with an A370 plate amp. The 1510 has a significantly larger motor structure than the 1501 as well. Plus it's one-piece cone looks great!

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post #16563 of 17213 Old 08-29-2014, 10:13 AM
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Hey something I've wondered for awhile,

Lets say you have an Antimode or some sort of sub EQ. Now I run 14hz and hi damping on my F15, but is it best to run antimode EQ with it on low damping, and then when done switch back to hi? Then when back to hi, I let Pioneer's MCACC do it's thing/ I thought this might be the case, but I saw that low damping just drops off quicker. And if that's the case, I'm not EQ'ing correctly and should EQ with what I actually run.

What do you guys think?

Sorry if this was discussed, I didn't see it.
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post #16564 of 17213 Old 08-29-2014, 10:16 AM
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^^ Per Brian, he recommends running calibration with low damping then switch to whatever one prefers and NOT the other way around.
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post #16565 of 17213 Old 08-29-2014, 04:21 PM
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Quote:
Originally Posted by JT78681 View Post
The more I read it looks like a Q of 0.5 is preferred by most. This would be high dampening on Rythmik subs. To be honest I prefer low over high dampening. The bass is more full bodied, hence has more ringing, but it just sounds better with movies to me.
I use damping to match the timing of my speakers. I use mid damping for my Ascend 340s because it sounds like more of a match. However, when I had Gallo Reference Stradas (which are incredibly fast) in my system I had to go with high damping, there was no other choice. Low damping seems solely designed for that cinema boom. It's somewhat entertaining, but lots of other subs can do that. Rythmik's unique strength is tight, articulate bass, which may sound thin and dry to some, but it's much more realistic.
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post #16566 of 17213 Old 08-29-2014, 04:21 PM
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^^^

For the sealed F15, Brian's recommendation is, prior to running room EQ, set the amplifier to:
Rumble Filter - Off
Extension - 14Hz/Mid damping

...
Salk SongTowers-RAAL / SongCenter-RAAL / SongSurrounds; Rythmik F12 (x2); Denon AVR-4520CI; D-Sonic M2-800S; Oppo BDP93; Panny 65VT50; Schiit Audio Valhalla; Sennheiser HD600; BJC everywhere
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post #16567 of 17213 Old 08-29-2014, 07:18 PM
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Quote:
Originally Posted by Peen View Post
Hey something I've wondered for awhile,

Lets say you have an Antimode or some sort of sub EQ. Now I run 14hz and hi damping on my F15, but is it best to run antimode EQ with it on low damping, and then when done switch back to hi? Then when back to hi, I let Pioneer's MCACC do it's thing/ I thought this might be the case, but I saw that low damping just drops off quicker. And if that's the case, I'm not EQ'ing correctly and should EQ with what I actually run.

What do you guys think?

Sorry if this was discussed, I didn't see it.
I don't know about other "sub EQ" products, but the DSP AntiMode corrects for less-than flat amplitude response in the listening room as measured by the included microphone. If you set your Rythmik to Low or Medium Damping and run the Antimode, and then switch the Rythmik to High Damping, the Antimode will be correcting for a raw response that no longer exists. Not the optimum implementation of the Antimode's abilities, IMO.
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post #16568 of 17213 Old 09-01-2014, 09:09 PM
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Just want to add that for music, the Onkyo 5509 made the sub sound way better when compared to the Onkyo 818...
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post #16569 of 17213 Old 09-03-2014, 02:39 PM
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For those who are interested, Best Buy has the Denon 4520 for $999. Such a bargain for one of the best receiver. JT, jump on it.
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post #16570 of 17213 Old 09-03-2014, 02:41 PM
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Great deal if you don't care about ATMOS.
Quote:
Originally Posted by tvuong View Post
For those who are interested, Best Buy has the Denon 4520 for $999. Such a bargain for one of the best receiver. JT, jump on it.
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post #16571 of 17213 Old 09-03-2014, 04:22 PM
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F25 back in stock

For those who were waiting, the F25 with HX800XLR3 amp is back in stock.

Best Regards,

Enrico Castagnetti
Rythmik Audio

 

My Multimedia Room Gallery

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post #16572 of 17213 Old 09-03-2014, 04:56 PM
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Originally Posted by tvuong View Post
For those who are interested, Best Buy has the Denon 4520 for $999. Such a bargain for one of the best receiver. JT, jump on it.
That's an unbelievable offer for a previous generation flagship!

For those not interested in Atmos, this is a real bargain. I wish this deal was available where I'm at.

Maranatz NR1504, Oppo BPD-93, MTV 7000D, LG LW6500, aTV, WDTV Live, Harmony 650 remote, KEF E301, MiniDSP(2x4), Rythmik F12G
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post #16573 of 17213 Old 09-03-2014, 06:06 PM
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Originally Posted by steveting99 View Post
That's an unbelievable offer for a previous generation flagship!

For those not interested in Atmos, this is a real bargain. I wish this deal was available where I'm at.
Amazon has matched BB's price, but they're almost out of them now.

It makes a great companion to a pair of Rythmik subs.

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post #16574 of 17213 Old 09-04-2014, 12:07 AM
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^^ For those living in the states and want the Denon 4520ci that's on a fire sale now, give jdsmoothie at AVS a call on 585-645-1006.

Maranatz NR1504, Oppo BPD-93, MTV 7000D, LG LW6500, aTV, WDTV Live, Harmony 650 remote, KEF E301, MiniDSP(2x4), Rythmik F12G
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post #16575 of 17213 Old 09-04-2014, 06:30 AM
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Where are you guys seeing the Denon AVR4520CI listed at $999? Everywhere I look it shows $1599.

Receiver - Denon 4311CI
Speakers - Infinity P363's, PC351, P153's
Subs - Rythmik FV15HP's
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post #16576 of 17213 Old 09-04-2014, 06:43 AM
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Yesterday it was on sale at Best Buy and Amazon for $999. Give JD a call to get a very good deal on the 4520.

Best Regards,

Enrico Castagnetti
Rythmik Audio

 

My Multimedia Room Gallery


Last edited by enricoclaudio; 09-04-2014 at 06:50 AM.
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post #16577 of 17213 Old 09-04-2014, 09:26 AM
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Quote:
Originally Posted by enricoclaudio View Post
For those who were waiting, the F25 with HX800XLR3 amp is back in stock.
Just FYI. The site still shows as out of stock.

Receiver - Denon 4311CI
Speakers - Infinity P363's, PC351, P153's
Subs - Rythmik FV15HP's
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post #16578 of 17213 Old 09-04-2014, 10:50 AM
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I don't have a lot of placement choices for my F15HP, but before I try I wanted to know how significant the dips around 58hz and 90hz are.
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post #16579 of 17213 Old 09-04-2014, 11:03 AM
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I would explore your options. That's a massive, wide trough centered at about 90 Hz and spanning more than an octave.

Now, if you were crossing over to the mains at 50 Hz, then you're probably pretty good.

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post #16580 of 17213 Old 09-04-2014, 11:07 AM
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Originally Posted by bkeeler10 View Post
I would explore your options. That's a massive, wide trough centered at about 90 Hz and spanning more than an octave.

Now, if you were crossing over to the mains at 50 Hz, then you're probably pretty good.
I cross the mains at 60 and the sub at 80.
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post #16581 of 17213 Old 09-04-2014, 11:16 AM
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I cross the mains at 60 and the sub at 80.
This doesnt make sense. Do you mean the mains are set at 60 and all other speakers at 80?
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post #16582 of 17213 Old 09-04-2014, 11:22 AM
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This doesnt make sense. Do you mean the mains are set at 60 and all other speakers at 80?
The AVR is set to cross the speakers at 60 and the sub at 80 This was how the AVR's room correction set it.
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post #16583 of 17213 Old 09-04-2014, 11:51 AM
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Quote:
Originally Posted by JT78681 View Post
Just FYI. The site still shows as out of stock.
Refresh or delete cookies. It shows in stock since two days ago.

Best Regards,

Enrico Castagnetti
Rythmik Audio

 

My Multimedia Room Gallery

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post #16584 of 17213 Old 09-04-2014, 12:36 PM
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^^^ Darn cookies...

Receiver - Denon 4311CI
Speakers - Infinity P363's, PC351, P153's
Subs - Rythmik FV15HP's
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post #16585 of 17213 Old 09-04-2014, 01:52 PM
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Originally Posted by gregcss View Post
The AVR is set to cross the speakers at 60 and the sub at 80 This was how the AVR's room correction set it.
You're using Anthem's ARC. It is setting a high-pass crossover on the speakers to 60 Hz. So everything above that goes to the speakers and everything below goes to the sub, as is typical for bass management schemes. In addition, it is setting a low-pass crossover on the sub at 80 Hz. This would only take effect on the LFE channel, since the aforementioned crossover means that the sub will never see 80 Hz from the bass management system (except what is left after the roll-off dictated by the crossover's slope).

Normally it would try to set the low-pass crossover for the sub at 120 Hz, but the in-room response is preventing it from doing that. Another reason to play around with sub placement, if you can. Also be sure that the Rythmik amp's low-pass crossover is disabled.

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post #16586 of 17213 Old 09-04-2014, 07:26 PM
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Been a while since I posted, but I just watched the second launch scene in Ender's Game on my FV15HPSE and it dropped. my. jaw. I live in a concrete loft and felt concerned for my safety. I can't WAIT to get a bigger place someday and get duals.
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post #16587 of 17213 Old 09-05-2014, 06:48 AM
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^^^ Glad to hear your still a happy camper.

Receiver - Denon 4311CI
Speakers - Infinity P363's, PC351, P153's
Subs - Rythmik FV15HP's
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post #16588 of 17213 Old 09-05-2014, 07:26 AM
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I have an unsuspecting friend coming into town this weekend and I plan on putting him through the paces with all my demo material.

Receiver - Denon 4311CI
Speakers - Infinity P363's, PC351, P153's
Subs - Rythmik FV15HP's
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post #16589 of 17213 Old 09-05-2014, 07:41 AM
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Originally Posted by gregcss View Post
The AVR is set to cross the speakers at 60 and the sub at 80 This was how the AVR's room correction set it.
Have you tried adjusting the phase/delay?
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post #16590 of 17213 Old 09-05-2014, 08:19 AM
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Originally Posted by rcohen View Post
Have you tried adjusting the phase/delay?
I have not but I believe Rythmik materials indicate changing the subwoofer distance (something different than the main speakers) has the same effect. Even though the sub is right next to the left main speaker I believe i have it set at a distance of 3 feet further than the left is set to.
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