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Official Rythmik Audio Subwoofer thread - Page 274

post #8191 of 15139
Quote:
Originally Posted by Cowboys View Post

I play 'The bass I love' on YouTube via my Denon AirPlay and it sounds fine on my FV15hp (550W). I was playing at -10db volume with sub 6db hot. Really did not know what a single digit Hertz sound like (feel like I should say). Wow, lots of air movement like a big fan blowing at full speed. I have not seen the driver moving so much since owning this sub. I was a little scare to crank the volume up pass that. Just curious what instrument used to play that single digit note?

It's electronically generated 7Hz
post #8192 of 15139
Understand. I was just wondering about that song that got mentioned widely here. I don't think I want to own it.
post #8193 of 15139
Quote:
Originally Posted by dstew100 View Post

It's electronically generated 7Hz
I see. Thanks.
post #8194 of 15139
On the miniDSP: There is a dedicated thread in the DIY Forum on the miniDSP. One of my concerns using it vs. something like Audyssey for full-range control is that my understanding is that it easily implements standard filters to adjust the amplitude over frequency, but I am not sure how flexible it is when it comes to phase/group delay. For example, if you have a three-driver speaker (woofer/mid/tweeter) plus sub, one of the desirable outcomes is that everything is time-aligned. Frequency-domain tools do not usually make that easy...
post #8195 of 15139
Quote:
Originally Posted by DonH50 View Post

On the miniDSP: There is a dedicated thread in the DIY Forum on the miniDSP. One of my concerns using it vs. something like Audyssey for full-range control is that my understanding is that it easily implements standard filters to adjust the amplitude over frequency, but I am not sure how flexible it is when it comes to phase/group delay. For example, if you have a three-driver speaker (woofer/mid/tweeter) plus sub, one of the desirable outcomes is that everything is time-aligned. Frequency-domain tools do not usually make that easy...

Yeah I need to get to toying with mine to figure that stuff out but it is a concern I have as well. Audyssey and Antimode both claim time domain. Minidsp can add delays, but not sure if they are flexible enough for what we are talking about. I'm interested in understanding this more. So lets say I add a filter to attenuate by 3db maybe 5hz wide gradual slope. I don't really understand what that does to phase and how wide across the spectrum it impacts the phase/timing. Maybe we should head over there? I'm familiar with the thread you are referring to. HTS and the minidsp website have minidsp specific forums too.

I like Rythmik subs (see I'm on topic here)

EDIT: I just posted this over in the DIY minidsp AVS forum.
post #8196 of 15139
Beeman,
Curious what sub(s) do you have?
post #8197 of 15139
Quote:
Originally Posted by DonH50 View Post

On the miniDSP: There is a dedicated thread in the DIY Forum on the miniDSP.

Thanks!

...biggrin.gif

Quote:
Originally Posted by Cowboys View Post

Beeman,
Curious what sub(s) do you have?

Klipsch, SW12 II's with recently upgraded drivers and radiators.

-
Edited by BeeMan458 - 2/4/13 at 12:36pm
post #8198 of 15139
photo (2).JPG 131k .JPG file I thought I would be like the first person in the U.S. at least to pick up this bad boy, but Brian said 3 other local people have beat me to it so far smile.gif When I get home from work I will take some pics and post.
post #8199 of 15139
Quote:
Originally Posted by JT78681 View Post

photo (2).JPG 131k .JPG file I thought I would be like the first person in the U.S. at least to pick up this bad boy, but Brian said 3 other local people have beat me to it so far smile.gif When I get home from work I will take some pics and post.

Nice, I'd love to hear your thoughts once you get it set up. I'm thinking of getting one for my ~2300ft^3 basement. How big is your listening space?
post #8200 of 15139
I actually had the FV12 last year for a short period of time and it rocked. I had to sell it due to unforseen circumstances and picked up an Outlaw EX. The Rythmik obviously was not quite as loud as the EX, but it got down with authority to 20hz with no distortion whats so ever. The living room itself is not gigantic, but it is completely open to an upstairs loft, kitchen and dining room. When I had the FV12 last year we had just moved into our house and the neighbors asked my wife and I what all that noise one night. They both thought they heard thunder and checked the weather channel smile.gif I told them sorry that I was having a demo of my sub and our houses are generously spaced apart. The lady even said some of her china in her cabinets were shaking that's how loud it was.
post #8201 of 15139
Pretty sure this sub will fill that space with thunderous bass with ease.
post #8202 of 15139
Quote:
Originally Posted by JT78681 View Post

photo (2).JPG 131k .JPG file I thought I would be like the first person in the U.S. at least to pick up this bad boy, but Brian said 3 other local people have beat me to it so far smile.gif When I get home from work I will take some pics and post.

Any word on when it'll be available on the website? I'll be ready to order one by Wednesday or Thursday and don't want to miss out if it's an email-request only thing for a while.
post #8203 of 15139
Although there's no link to it yet on the website, the product page for the LV12R (w/o pics at this time) is up.

Meanwhile, the link to the FV12 is down.
post #8204 of 15139
Quote:
Originally Posted by eljaycanuck View Post

Although there's no link to it yet on the website, the product page for the LV12R (w/o pics at this time) is up.

Meanwhile, the link to the FV12 is down.

Very nice, thanks for the link. Can't wait for tax refund money to hit.
post #8205 of 15139
My F12 came in today ... Yeah!! I am in the process of setting it up. I have run the Audssey Multi-EQ/XT program built into ten AVR and am now ready to start listening.

I thought I say a post recently about using the "Best of Chesky Jazz and More Audiophile Test Volume 2" (I downloaded the CD from HD Tracks) to set up the subwoofer and specifically recommendations on what tracks were good for what but I cannot seem to find the post.

Anybody have any idea?

Thanks
post #8206 of 15139
Brian or whomever,
So I EQ'ed both Rythmiks (dual 15's) and ended up leaving both subs with phase set at 0 and was happy with the results(flat in room response etc). I was reading that in order to set phase on multiple subs you should run a test tone at the XO frequency and adjust the phase on each sub individually to achieve the max output. This is all fine and dandy but the problem is I run a preamp and receiver and in my setup the XO in my 2100 preamp is 80hz and my yamaha receiver is 100hz?

Thoughts? I obviously get varying results trying the phase settings between each piece of gear, so its virtually impossible to set them both perfectly.

Do I just leave them set at 0 or what? This turned out to be more work than I thought…yikes..

Thanks,
Brandon
post #8207 of 15139
Here are some pics as promised. I watched a few quick scenes from The Dark Knight, War of the Worlds and Super 8. As expected it did not disappoint or leave anything to be desired. Build quality is top notch. I picked it up for $499 and I believe at this price point no other sub can touch it.








post #8208 of 15139
Sorry these pics were from my iphone, so they aren't the greatest.
post #8209 of 15139
I have one question I have the bass extension set to "Low" the other choices were "Mid" and "High". I have the Low Pass Slope set to 12db the other choice is 24db. I'm using a Y splitter, so I am just wondering if I should use 12db or 24db for the slope? I am simply trying to achieve the best possible output for TV/Movies. This is probably a noob question, so please forgive me. I mean it sounds great to me I just want to make sure that I don't need to change the slope to 24.

Thanks
post #8210 of 15139
Nevermind I found the answer to my own question rolleyes.gif
post #8211 of 15139
Looks great man, $499 is almost criminal.
post #8212 of 15139
^^
Especially for a sub from Rythmik that goes down to 19Hz (+-2db). Very hard to beat at its price point.
post #8213 of 15139
The F12 is up and running. Boy oh boy this thing is sweet. I realize that conventional wisdom is that in a 4,000 cubic ft room I needed a 15" and/or ported sub but I'm glad I stuck with the 12" sealed. I have it hooked up with both the LFE and line in from the preamp outs (and no, the earth's magnetic field did not reverse itself smile.gif ). I ran Audssey with LPF on AVR/12, crossover at 50 Hz (my mains go down to 44 Hz), Delay/phase at 0, rumble filter off, & extension filter at 14 Hz mid damping. I'm using a Marantz SR 7005 AVR. Audssey set the sub at -0.5dB and about 2 feet farther away than my main speakers.

For music I listened to Beethoven's 5th, the Telarc Cincinnati Pops recording of Tchaikovsky's 1812 Overture (in both DTS 5.1 and 176/24 flac formats), and the Chesky test disc Vol 2. For movies I watched parts of Demolition Man and Serenity both in DTS-MA.

I listened to the sub with the damping set at both mid and low and volume ranging from the initial -0.5 dB to +2.5 dB (3 dB hot). I ended up settling on the initial settings of mid damping and -0.5dB.

Even with damping on mid and not running the volume hot this sub fills the room amazingly. With music the bass is full and sweet, not overpowering or localized. You cannot tell the bass is coming from the sub unless you walk over and stick your ear next to the driver. The bass strikes and cannon fire in the 1812 Overture are full without being overpowering or harsh. As for the movies, Serenity has never sounded so large or come to life so much. This 12" sealed sub can definitely shake the walls (I may have to switch to high damping once the wife gets back home rolleyes.gif). Even though this sub is putting out way more punch than anything I have had in this system before the effect is desirable not harsh or nerve grating.

Up until a few weeks ago I had never heard of Rythmik. I'm sure glad I did and that you all have been as helpful, and tolerant, as you have. Brian, thanks for your help both on the forum and over the phone.

By the way, did I mention the F12 is on sale, $787? The F12 is so far beyond any other $800 sub I've been auditioning over the past two months it isn't even funny. It even blows away the $1,600 servo sub I was trying to justify buying.

Bottom line: even if your listening area is larger, don't discount the F12, I couldn't be happier. Now, back to the movie biggrin.gif.
post #8214 of 15139
Great to hear mlundy57! Sounds like you found the right subwoofer for your system.
post #8215 of 15139
Quote:
Originally Posted by dstew100 View Post

I need to get something for imaging tests. Which Chesky CD do you recommend, it appears there are several. My imaging tests right now are very sophisticated. Do instruments sound like they are at different places between the speakers?

Chesky test CD2 is the one focused on image mapping. Test CD3 is the one demonstrating different miking techniques and how to transform dry mono sound into aritificial stereo and artificial reverberation. Good imaging speakers require the two speakers to be closely matched. But don't take this matching for granted. It takes a lot of effort to achieve that.
post #8216 of 15139
Well, just ordered my LV12R. First real home sub, so this should be interesting.
post #8217 of 15139
First real home theater sub?? Yeah I'm pretty sure you will be smiling soon after hooking it up. Just put on War of the Worlds scene 5 I believe and crank it up.
post #8218 of 15139
Yep, my 26" Samsung monitor and Z-5500s have been pulling HT duty for the past few years, so I jumped up to a 60" plasma and decided I needed a good stereo and HT system to go along with watching movies; for some reason, BSG just isn't quite as exciting when all the sound is coming through tiny little tv speakers. LV12R, Arx A5, A2b when it gets released, and a Marantz SR5006. I'm thinking I'll be watching more movies once everything gets hooked up. biggrin.gif
post #8219 of 15139
Quote:
Originally Posted by JT78681 View Post

First real home theater sub?? Yeah I'm pretty sure you will be smiling soon after hooking it up. Just put on War of the Worlds scene 5 I believe and crank it up.
I thought there was a requirement that you had to start with a bad sub you paid too much for prior to getting a good one. I didn't realize I could just start off with good sounding, quality build, and value from the get go.
Quote:
Originally Posted by DemonicLemming View Post

Well, just ordered my LV12R. First real home sub, so this should be interesting.

Awesome, look forward to hearing your impressions.
post #8220 of 15139
Quote:
Originally Posted by Rythmik View Post

Quote:
Originally Posted by dstew100 View Post

I need to get something for imaging tests. Which Chesky CD do you recommend, it appears there are several. My imaging tests right now are very sophisticated. Do instruments sound like they are at different places between the speakers?

Chesky test CD2 is the one focused on image mapping. Test CD3 is the one demonstrating different miking techniques and how to transform dry mono sound into aritificial stereo and artificial reverberation. Good imaging speakers require the two speakers to be closely matched. But don't take this matching for granted. It takes a lot of effort to achieve that.

Thank you. I am going to order it. Very curious how my current set up does, and if I can get the imaging better without a complete re-arrangement. My room is a weird open floor plan set up. I have decent distance to the front wall but one speaker is to close to the side wall. Their distance to MLP is fairly exact and the front three were all ordered together and are supposed to be matching but I hear you on the per speaker variance.
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