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I own 2 F113's but was interested in how the rythmik F15 compares?
I realize the big price difference.
But need another sub.
Opinions?
I realize the big price difference.
But need another sub.
Opinions?
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Quote:
Originally Posted by Warpdrv /forum/post/15492807
For what you have invested in the F113's, just snatch up a rythmik and see what it has to offer your setup, not like its going to break the bank here....
Quote:
Originally Posted by goonstopher /forum/post/15492877
I wish there was more info about these f15's... Right now dual f15's cost the same as many of the mid/high subs available online ($1600)
For what you have invested in the F113's, just snatch up a rythmik and see what it has to offer your setup, not like its going to break the bank here....
That's the old King Titus![]()
The New Titus had a rough year in 2008.
Looking to save on all levels.
Sub will be used for only music.
I negotiated for a new F112 $1850.
So the price is getting closer.
My 2 F113's are in my HT room for movies mostly
Quote:
Originally Posted by mayhem13 /forum/post/15494091
The JL and F15 have about the same low end extension, with a little favor to the F15, but in output it's crushed by the JL. What are you looking to achive with a third sub...more output? lower extension? a smoother in room response?
Quote:
Originally Posted by goonstopher /forum/post/15497264
Will dual f15's match the output of a single svs pb13-ultra?
Quote:
Originally Posted by Warpdrv /forum/post/15492807
For what you have invested in the F113's, just snatch up a rythmik and see what it has to offer your setup, not like its going to break the bank here....
That's the old King Titus![]()
The New Titus had a rough year in 2008.
Looking to save on all levels.
Sub will be used for only music.
I negotiated for a new F112 $1850.
So the price is getting closer.
My 2 F113's are in my HT room for movies mostly
Ahhh I see.....
What size is your room there King...? I would really like to hear a comparison between my F112 and the Rythmik, which I could arrange. Without ever hearing the Rythmik just yet, I can tell you without a doubt that the F112 is the best sub I have ever heard for music, the upper bass of the JL is far better then the TC2000 drivers in this respect, and helps to blend with the mains more seemlessly its just amazing. The Rythmik driver is basically a modified TC1000 driver, so I would suggest that the upper bass will be very similar to my DIY subs.
My F112 is in a 1800^3 room and is more then ample for HT and music for certain.
In fact the guys at JL seem to prefer the F112's for this very characteristic, better upper bass performance then the F113.
I can't remember who at JL in one of the Fathom threads that was that has dual F112's and prefers them over the F113.
Quote:
Originally Posted by Warpdrv /forum/post/15492807
For what you have invested in the F113's, just snatch up a rythmik and see what it has to offer your setup, not like its going to break the bank here....
That's the old King Titus![]()
The New Titus had a rough year in 2008.
Looking to save on all levels.
Sub will be used for only music.
I negotiated for a new F112 $1850.
So the price is getting closer.
My 2 F113's are in my HT room for movies mostly
Quote:
Originally Posted by Warpdrv /forum/post/15498434
The Rythmik driver is basically a modified TC1000 driver, so I would suggest that the upper bass will be very similar to my DIY subs.
Quote:
Originally Posted by Rythmik /forum/post/15496530
Mayham,
I am interested in your opinion regarding the extension filter setting. Can you hear the difference between 14/20/28hz with hi/mid/low damping setting? The original intention of the design is to provide tradeoff between extension and output. I am wondering in your opinion if the switches have a reason to be there. BTW, I asked several of my customers too. So you can view this as a survey.
Thanks.
Brian
Quote:
Originally Posted by mayhem13 /forum/post/15503098
Brian, great tradeoff IMO, especially when multiple units in play. Haven't heard an F15 but have built 2 from the older DS 15 kits both sealed for a client/friend. And if the F15 has the SQ of these kits, hats off to you. I was really surprised with the smoothness between 30 and 50hz...tough are for music and the DS handles it better than most.
You should know i'm a PeQ guy...LT not so much. I wind up notching with the PeQ to smooth the LT..?...depends on the room i guess.
I hope the comment about crushing output from the JL didn't bother you. At better than 3/4 the performance for the 1/3 the price it shouldn't. I could build 4 DS15 kits with that kind of money and then let's see who get's crushed! LOL
Quote:
Originally Posted by Rythmik /forum/post/15499449
I have to protest thatOur driver is not a modified TC1000.![]()
There are two important refinement we have made to our drivers over TC drivers. First, our driver has lower moving mass/lower voice coil inductance over than stock TC drivers. Both the voice coils and aluminum shorting rings were supplied by us. We just borrow TC's motor design. Our ealiest servo drivers are made by NCA. During the sampling process, Thilo forgot to put in shorting ring in the first sample. I put it in my servo sub, it sounded very bad. He then made the second sample and he glued the aluminum ring to the wrong side. He glued it to the back plate. I thought he would have known it should be glued to the top plate to be effective (do I have to explain that to him?) I didn't break any of those samples to find out all these. It was all based on sound first followed by a simple measurement of inductance.
The second refinement is servo. I was selling both servo and nonservo for a good 3-4 years. I decide to drop the nonservo line completely. There is no point of selling nonservo kits when servo kits are only $$$ more expensive. I can only sell single digit units of nonservo kits compared to hundreds of servo kits. The improvement from the servo is very obvious. The bass is not only tighter, it is also more articulate. I have one customer tried both of them and with a side-by-side comparison between servo and non-servo. While the nonservo sounded nice with the low moving mass/low inductance design features, the bass from the servo is "tight and sweet".
I don't have a TC2000, but a friend of mine send me his measurement. From that impedance plot, the impedance minimal point sits at 60hz for a 15" driver. Our driver sets at 90hz for 15", 100hz for 12" DS1200, and 120hz for GR SW12-4. For that particular TC2000 driver, to move that minimal impedance point from 60hz to 100hz requires a reduction of the voice coil inductance by a factor of 2.7x (because corner frequency change is square root of inductance change. 1.67x change in frequency, and 1.67*1.67=2.7x change in inductance value) . It is not an easy task. That would easily explain why it does not sound as transparent as....
I know this is a sensitive subject (about inductance and bah bah bah). Let me just say some of us can hear it and some of us cannot hear in the hope that this will quell further debate. It is very much like the engineer I met at TC sounds 4 years ago that I explained I can hear the difference shorting ring makes. He said he cannot hear any difference a shorting ring makes. At that time only a few companies made drivers with shorting ring. Today, that becomes a must-have feature.
Quote:
The strength of these subs (including DS15/DS12) is best demonstrated as how easy it is to integrate with other front speakers. They should sound like simply a pair of full range front speakers, not two front speakers plus a subwoofer![]()
Quote:
Originally Posted by Warpdrv /forum/post/15518900
Thanks for clearing that up Brian.... No offense meant - I have read that on many occasions, and never seen a rebuttal of said information, so I took it as truth...
Quote:
Originally Posted by Rythmik /forum/post/15524190
In terms of output, it is similar to TC1000 and that was probably the reason why I didn't say anything before. However, I will be very disappointed if there is no improvement from what I did with our drivers over stock TC1000![]()