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Official Rythmik Audio Subwoofer thread - Page 254

post #7591 of 15159
Quote:
Originally Posted by turboswede95 View Post

DC OFFSET NOTICE!!!! CMX2 and CMX6
The CMX 6 does not remove DC offset!! Only the CMX2 is designed to clean DC offset.

yup...i think that was mentioned earlier.
post #7592 of 15159
Quote:
Originally Posted by K5/SS View Post

I am not going to lie, Smigro's experience has me a little nervous...
Any of you guys running a Great Gamma under your FV15HP?

I have wood floors so I am using a Great Gamma with my FV15HP. It seems to work good and reduces contact vibrations.
post #7593 of 15159
Quote:
Originally Posted by turboswede95 View Post

DC OFFSET NOTICE!!!! CMX2 and CMX6
The CMX 6 does not remove DC offset!! Only the CMX2 is designed to clean DC offset.

Yeah someone pointed that out to me yesterday and I am glad they did before I ordered because I would have completely overlooked that.
post #7594 of 15159
Quote:
Originally Posted by Smigro View Post

Yeah someone pointed that out to me yesterday and I am glad they did before I ordered because I would have completely overlooked that.
It cleaned up the intermittent hum on my 2 15's a good 95%
post #7595 of 15159
Quote:
Originally Posted by kaotikr1 View Post

Do you get the hum from amps or the sub? Do you get the hum with only the power cord plugged in, or with the rca cable plugged in?

When I turn the receiver off, the sub does not hum. When I unplug the sub (and Def Tech built in subs) the receiver does not hum. When I unplug the sub line in RCA cables is still hums (but this is the same with Rhythmic out of system and only Def Tech built in subs). I have not found any hum reduction by unplugging either the AC or line level for any of the source equipment- including the TV. Also as I think I mentioned before, at seemingly random times, the hum goes away on its own for reasons unknown.

Unfortunately, I ordered the CMX-6, which I received today. I have not hooked it up yet, though, and am awaiting a definitive answer on the DC hum reduction differences. I didn't see any posts about the differences between the two and figured the 6 was a better value with 4 more outlets.
post #7596 of 15159
Quote:
Originally Posted by turboswede95 View Post

It cleaned up the intermittent hum on my 2 15's a good 95%

That is good to hear. I don't mind if they hum a little bit, but mine can be heard at about 7 feet when watching TV at a moderate volume.

I tried to go through the house and narrow down what is making it happen when I hear the buzz, but have yet to find the culprit. At this point I am thinking it may be some kind off DC offset coming from a neighbors house or something. After all the house is from the mid 1900's and the second floor where my setup is still has the old style knob and tube electric in the walls.
post #7597 of 15159
Quote:
Originally Posted by PeterOrr View Post

Well, things can change.
... I took the smaller 12” and put it behind and to the left of my rear wall listening and movie watching chair (only location available on back wall, about a third of the way in from left corner) and by using REW measurement determined that the right front corner was the best complimentary location for the D15SE. Result is much better even response for both subs versus the previous stereo front wall set-up (each sub was ¼ of the way in from front corners). Response is also much better in my secondary side wall couch listening position.
And it gets better. With 12” sub just behind my listening chair, where I sit to watch movies, the impact because of its proximity is now visceral...
Peter Orrick
Vero Beach, FL

Don't know if this has been mentioned or if it is entirely correct, but when I used to sell AV (7yrs in '90s), we used to tell people that the best way to determine the best sub position was to put the subwoofer in the same position you normally sit then walk around the walls of the room and listen/measure where the sub has the best sound/output. Then put the sub in that position.
post #7598 of 15159
I decided to run home and take a loooong lunch because of your comments. The timing just worked out perfectly (that never happens). Even the cute UPS driver liked it, she said " that looks like a fun gift". I have to run back to work but I feel much better now that I know it is resting safely in my living room instead of the porch. I can 't wait to get back home after work and un-box this beast..


post #7599 of 15159
^^^

I find it amazing that UPS expects one person to be able to move that thing around. Glad to see everything worked out. I should have pics of mine up this weekend.
post #7600 of 15159
K5/SS,what is that cylinder sub you currently have in the corner, just curious? SVS? You will love the FV15 for sure. Congrat!
post #7601 of 15159

Hey all! New to the Rythmik family. Just picked up an FV15HP and got it all integrated with my system. Here is a link to my review:

 

http://www.avsforum.com/t/1398473/measuring-the-tactile-feeling-of-your-sub-system/60#post_22716517

 

In short, I'm amazed with the FV15HP. Not only is the SQ amazing, but the build quality is amazing! I've come from a more economical brand (eD) so that is my reference point. The fit and finish is second to none. I love the metallic driver...damn sexy. Even the grill is impressively made, and the way it was packaged was of the highest quality. I can actually reuse this box if I were to ever part with it.

 

Great job Rythmik. Great job Brian!

post #7602 of 15159
I too just got my FV15Hp hooked up and calibrated. I was able to get it pretty flat from 20HZ on up. This replaced my JL Audio F112 that I moved to my audio room with my Magico speakers.

All I can say is WOW. I now can feel movies and it does NOT boom at all. That was my biggest fear. Compared to the JL it has so much more impact and it does go much lower in my room. The sub has no hangover which just amazes me being a ported box. This thing should cost way more then the JLAudio F112 and is a steal at it's retail price. I still can't get over what this sub is able to do to my room and the output it's capable of.

Fit and finish is is very good. It is big but doesn't weight as much as I thought at least compared to the JL which is heavy as can be for the size. The spike kit is also a must. This needs to be off the floor a bit and the metal spike do that.
post #7603 of 15159
Need help!!

I moved my SVS subwoofer out of the way, moved the Rythmik into position and hooked it up. The red light came on for one second and turned off. I can't get the sub to turn on, I even ran an extension cord from another room to see if it was the Furman, still nothing. Now I have a $1,700 carpet weight. BTW, this thing was packaged perfectly and it is beautiful. I was going to call Brian but I figured it was too late. I put the SVS back into position, hooked it up and it works perfectly. I am totally bummed out, please help me.
post #7604 of 15159
check either if you popped the internal fuse on the amp, or maybe check the outlet if that breaker didn't pop.

If both look good, time to make a call to Rythmik.
post #7605 of 15159
Quote:
Originally Posted by mtdking View Post

I too just got my FV15Hp hooked up and calibrated. I was able to get it pretty flat from 20HZ on up. This replaced my JL Audio F112 that I moved to my audio room with my Magico speakers.
All I can say is WOW. I now can feel movies and it does NOT boom at all. That was my biggest fear. Compared to the JL it has so much more impact and it does go much lower in my room. The sub has no hangover which just amazes me being a ported box. This thing should cost way more then the JLAudio F112 and is a steal at it's retail price. I still can't get over what this sub is able to do to my room and the output it's capable of.
Fit and finish is is very good. It is big but doesn't weight as much as I thought at least compared to the JL which is heavy as can be for the size. The spike kit is also a must. This needs to be off the floor a bit and the metal spike do that.

Awesome!! Whats the size of your room?
post #7606 of 15159
Quote:
Originally Posted by K5/SS View Post

Need help!!
I moved my SVS subwoofer out of the way, moved the Rythmik into position and hooked it up. The red light came on for one second and turned off. I can't get the sub to turn on, I even ran an extension cord from another room to see if it was the Furman, still nothing. Now I have a $1,700 carpet weight. BTW, this thing was packaged perfectly and it is beautiful. I was going to call Brian but I figured it was too late. I put the SVS back into position, hooked it up and it works perfectly. I am totally bummed out, please help me.

Are you sure you had the correct voltage on the selector? Mine came already one 120V, but it is possible yours did not.
post #7607 of 15159
Yes. It came on 120v. Went to the hardware store to buy extra fuses and it blew them all! I am totally lost..
post #7608 of 15159
Quote:
Originally Posted by K5/SS View Post

Yes. It came on 120v. Went to the hardware store to buy extra fuses and it blew them all! I am totally lost..

It could be that you have a faulty amp. Send Brian a PM and talk to him, I am pretty sure he will take care of you.
post #7609 of 15159
That's what I am thinking. I know Rythmik makes killer subs and Brian sounds like a great guy. I was very reluctant to start this thread but I also didn't want to call him so late. I will call him tomorrow.
post #7610 of 15159
I noticed a lot of people run port plugs, but I don't recall getting any :/

Btw, are spiked feet recommended for carpets?
post #7611 of 15159
Quote:
Originally Posted by dominguez1 View Post

Hey all! New to the Rythmik family. Just picked up an FV15HP and got it all integrated with my system. Here is a link to my review:

http://www.avsforum.com/t/1398473/measuring-the-tactile-feeling-of-your-sub-system/60#post_22716517

In short, I'm amazed with the FV15HP. Not only is the SQ amazing, but the build quality is amazing! I've come from a more economical brand (eD) so that is my reference point. The fit and finish is second to none. I love the metallic driver...damn sexy. Even the grill is impressively made, and the way it was packaged was of the highest quality. I can actually reuse this box if I were to ever part with it.

Great job Rythmik. Great job Brian!
I am so glad you love the FV15hp as it makes me feel better about my FV15hp purchase two months ago. It is truly is such a great sub for the money. Now I would like to hear your opinion as it compare to your single FTW-21.
post #7612 of 15159
Quote:
Originally Posted by 1080pee View Post

I noticed a lot of people run port plugs, but I don't recall getting any :/
Btw, are spiked feet recommended for carpets?
Have you looked at the ports of the subwoofer? The subwoofer came with one port plugged. If the port bung was not there when you received the subwoofer, then it's missing.
post #7613 of 15159
Brian has already responded to my PM! It sounds like he can get me a new amp by Friday! Great customer service.
post #7614 of 15159
Quote:
Originally Posted by K5/SS View Post

Brian has already responded to my PM! It sounds like he can get me a new amp by Friday! Great customer service.

Definitely top notch customer service.
post #7615 of 15159
Quote:
Originally Posted by K5/SS View Post

Yes. It came on 120v. Went to the hardware store to buy extra fuses and it blew them all! I am totally lost..

Sounds like low voltage at that outlet or the wires in the wall are switched and you're running the hot lead through the ground.

Have you checked the power at the outlet?

At the hardware store you can get a gadget that checks for polarity at a nominal cost of under ten bucks. The ones I'm familiar with are yellow, have a three prong plug and several indicator lights. You plug the appliance into the wall and what ever light lights, up, that's what's what as to polarity.

If the voltage is down, the current draw is the same, but the amperage goes up as amperage is watts/voltage and if your fuse is set for, say ten Amps, you're drawing the same number of watts and your voltage is reduced, to say 100V vs 120V, you'll have a current spike which shows itself as blown fuses.

Who did the rooms electricity and has that outlet been recently worked on?

Hope the above helps.
post #7616 of 15159
Can anyone tell me what finish Brian has on his floor spikes? Brass, chrome, black chrome....

10mm-1.5 has, from what I can tell, limited options for inexpensive spike sets.
post #7617 of 15159
photo.JPG 1694k .JPG file
Quote:
Originally Posted by Shift View Post

Awesome!! Whats the size of your room?


My theater room is 18 x 24 with 10 foot ceilings. I do have it corner loaded up front just right of the screen. Using a SPL meter I'm -2 db around 45 hz other then that I'm pretty flat. I used the Eq on the Rythmik to get it as close as possible without making it perfectly flat. I'm not a fan of a perfectly flat bass curve. Just like what Richard Vandersteen says " Perfectly flat curve will sound unnatural" and I agree. Little bumps are good suckouts are bad.

BTW I have a dedicated 20 amp circuit and I'm using a Cardas golden reference power cord for my sub and I have not had any problems with the Rythmik. My cable is also grounded to my panel so no ground loops either. In my old house I had ground loop for 2 years until someone said just ground you cable right when it comes into your house to your panel and boom it was gone forever. That would have saved my a lot of money if I would have did that first.
post #7618 of 15159
My spikes were Chrome and I have black oak cabinet. Nice spikes.
post #7619 of 15159
Quote:
Originally Posted by mtdking View Post

My spikes were Chrome and I have black oak cabinet. Nice spikes.

Thanks mtdking,
I'm good with chrome too. Not fan of brass. I'm planning on ordering a set from Brian, although I've yet to dial in the best sub location. I'll just wait to use them until my sub is in place.
post #7620 of 15159
Quote:
Originally Posted by mtdking View Post

I too just got my FV15Hp hooked up and calibrated. I was able to get it pretty flat from 20HZ on up. This replaced my JL Audio F112 that I moved to my audio room with my Magico speakers.
All I can say is WOW. I now can feel movies and it does NOT boom at all. That was my biggest fear. Compared to the JL it has so much more impact and it does go much lower in my room. The sub has no hangover which just amazes me being a ported box. This thing should cost way more then the JLAudio F112 and is a steal at it's retail price. I still can't get over what this sub is able to do to my room and the output it's capable of.
Fit and finish is is very good. It is big but doesn't weight as much as I thought at least compared to the JL which is heavy as can be for the size. The spike kit is also a must. This needs to be off the floor a bit and the metal spike do that.

Now this is great news, as I'm a former F113 owner, as you know the JL finish, and cabinet are over built and sound tight and fast so to move to another sub had me shaking with fear, and doubt.

Thank you thank you.

Djoel
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