Official Rythmik Audio Subwoofer thread - Page 225

Originally Posted by Rythmik 

In the future, HX800 is the amp to drive dual-driver subs. But price wise it is not really much cheaper than two of A370 amps. So it is more for dual drive in same enclosure, not left - right separate enclosure configuration (unless the customer installs the NL4 to make the connection to the remote sub).

Originally Posted by Rythmik 

I have updated the web pages. All LFE inputs have 200hz upper extension. All LINE IN has 90hz -100hz upper extenson. All of our models has both LINE iN and LFE IN (except PEQ series which has only LINE IN). This allows dual inputs at the same time.

Originally Posted by Rythmik 

I have updated the web pages. All LFE inputs have 200hz upper extension. All LINE IN has 90hz -100hz upper extenson. All of our models has both LINE iN and LFE IN (except PEQ series which has only LINE IN). This allows dual inputs at the same time.

Originally Posted by qguy 

And i thought this guy (Brian aka Rythmik) just answered post in this forum, guess i was wrong :-)

Originally Posted by LarryU 

This is a user forum with answers coming mostly from other Rythmik owners so yes you were wrong. With technical questions being answered by Brian (owner/designer/engineer) because he wants to support his customers and advise his potential customers. How many companies do you know of where you have access to this level of knowledgeable support?

Originally Posted by Tom C 

Thank you for your response. What also confused me (one the burdens of being a novice) is that all of the photos of the rear panels for the various amps show line in and out only. No LFE.
As soon as I put together some notes on my setup and room size I'll post them for some recommendations on which sub will suit me best.
Thanks again!

Originally Posted by Ishniknork 

If it helps Tom C, I just received my F12 today (WOO-HOO!!!) with the PEQ3 amp and it does have 2 inputs for LFE right next to the Line inputs.

Originally Posted by Tom C 

Yes, it does, thanks! A 90Hz limit on extension would have been a deal breaker.
Now would be a good time for suggestions. My current sub is a Velodyne CHT-12 (25-120Hz, 400W, 170 rms).
My speakers are NHT:
L&R- Model 1.3: 1" + 6.5", 52Hz - 25kHz, 8 ohms 86dB, 30W - 150W
Center- Model 1C: 1" + 6.5", 63Hz - 22kHz, 8 ohms 89dB, 20W - 150W
Model Zero: .75" + 4.5", 85Hz - 21kHz, 8 ohms 86dB, 15W - 100W
Denon 3808ci with Audyssey MultEQ XT sets xo’s at 80Hz for the front & 120 for surrounds.
Listening position is 9 ½’ from the front & sub and 6’ from surrounds.
Here is my layout. When I drew it up at work I realized that I didn't take measurements of my TV, stand, and front speakers. I actually have less space around that area. So I had to fudge it.

Originally Posted by squall12 

Hi,

Another question i am using FV15HP and when playing movie is it recommend to use limiter on or off to fully utilize the FV15HP.

Originally Posted by LarryU 

Ok, here’s my take. Every Rythmik sub is going have a little more SPL than your Velodyne (if you were happy with its output) from the F12 that will be a little louder to the FV15HP that will blow it out of the water, all will play deeper and cleaner. All of the Rythmik subs have about the same sound quality with a little different sound signature between sealed and ported. So it boils down to size that will fit in the space you have and price how much do you want to spend. Between ported and sealed, if you watch more movies then get the ported, more music then sealed. One other thing if your main speakers are ported then the ported subs may match them better. Also I would try moving the sub to between the table and the audio cabinet just to give it a try may not sound as good but it’s worth a try. Hope this has given you some food for thought. Let us know what you get and how you like it.
Larry

Originally Posted by squall12 

Hi,
Another question i am using FV15HP and when playing movie is it recommend to use limiter on or off to fully utilize the FV15HP.

Originally Posted by Tom C 

Thanks Larry. My Velodyne is 10 years old and replaced a Velodyne F-1000 which was 10 years old at the time. There was a noticeable improvement with the CHT-12 over the F-1000. I suspect with 10 more years of advancement in subwoofer technology whatever I get will be a significant improvement over the CHT-12.
I've been happy with my sub, but with the increased bass in movies now days and the sub advancements plus I don't know how good of bass I'm actually getting, I feel more and more like I'm missing bass here and there. One thing that is on my mind right now is that even though my Denon has the Audyssey MultiEX XT, I think that it may not be enough to correct any problems that I may have in my room. I'm considering something like the SMS-1 which will give me not only a reasonably decent graphic image of what's happening, but will allow me to smooth it out before applying Audyssey.
Any thoughts or suggestions on this?

Originally Posted by dstew100 

Tom, I recently purchased the Rythmik FV15HP, also coming from a velodyne. My Velo was a VA-1512 (12 in front firing woofer and 15 in down firing passive radiator 1000watts if I recall correctly); looks to be more sub than the F1000 if I looked up your specs right. Mine was maybe 12 years old, but I had updated the 12in woofer about 4 years ago to the new one. Before pulling the trigger on the Rythmik I cranked Transformer DOTM straight to reference and pounded on the Velo Hard (not worrying about hurting it since it was getting replaced or added to). It performed very admirably and I was impressed, although that amp was good and hot, I didn't want to touch it after putting my fingers close. Therefore I tempered my expectations; I was wrong to do so. The Rythmik outperforms it by far in every aspect I care about. I've done the measurements with REW and it goes significantly deeper with more output, however, what I am really enjoying the most is how much better it sounds (I try to be careful on the wording here). For me it sounds really precise and realistic (accurate???), I hear very subtle details in the bass range that simply were not there before, the example I've thrown out there a bunch of times is the bass guitarist fingers moving around on the strings. I have greatly increased the amount of music I am listening to as a result, before I was around 20% music. Another aspect that really impressed me was the over all build quality, these are very nice from the woofer, to the nobs on the amp, to the finish, to the box's... very high quality build. I have since watched Transformers DOTM at reference and there is a huge difference, the Velo was clearly struggling, not producing near as much tactile rumble, and not getting any where near touching those deep deep sounds. I'd need to bring the graphs back up but from memory the velo -3db for me was around 28hz and the Rythmik in my room is around 10hz, I need to do more measurements though. That is a big difference and for me has translated to a big step up in my home theatere system's performance, more enjoyment, and revitalized increased music time.
During my search I looked at most of the internet direct folks pretty hard and ended up here, very glad I did.
I could not be more pleased with my purchase, hope this experience helps. Recommend you spend some time reading through this thread, you will find many impressed users very happy with their purchase. I'm already pulling money together for a second one.

Originally Posted by squall12 

Hi,
Another question i am using FV15HP and when playing movie is it recommend to use limiter on or off to fully utilize the FV15HP.

Originally Posted by LarryU 

You could turn the limiter off if you are not playing that loud, but if your not that loud then why would you need to. The limiter is there to prevent the driver from bottoming out and damaging it. I always leave my on. You should also have the rumble filter on.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Originally Posted by DonH50 

+1.
I cannot tell a difference in sound at normal volumes with or without the limiter. Brian took a lot of care in the design to ensure it had minimal (essentially zero, IME) impact during normal operation. If you page through this thread, or call him, you will find he is quite particular about sound quality, and wanted to make sure he could protect without corrupting the sound. IMO he succeeded. I'd leave it on.