RCCrawler Forums

VeryBumpy · 03-25-2009, 08:35 PM

Do all ESC make that annoying noise or are some quieter than others?

I want a quiet car, that noise drives me nuts.

Suggestions on which ESC are quiet? Looking at brushed type btw.

ultimate_monkey · 03-25-2009, 08:45 PM

pretty sure they all make that noise, i have yet to see one that doesnt,

but i'm sure some one with more knolage wtill chime in haha

untill there wear ear plugs or deal with it

Espeefan · 03-25-2009, 11:59 PM

The majority of brushed ESC all make some noise like that, at the very slow speeds. Some brushless (Castle Creations) ESCs are even worse. Turn up the music.

MCSCOTT · 03-26-2009, 06:59 AM

You get use to it after a while, but they all make some kinda noise like that at low speeds. If you think that's bad, try using a Hi Tech 5955 servo.

VeryBumpy · 03-26-2009, 07:26 AM

What about reducing the noise?

Say maybe running 6 cells instead of 8 cells, which is quieter?

jevyguy · 03-26-2009, 10:22 AM

My Tekin FXR-Pro's don't make any noise

thatguy · 03-26-2009, 03:27 PM

Quote:

Originally Posted by jevyguy

My Tekin FXR-Pro's don't make any noise

can anyone else back this up? ive been searching for years to find a modern esc that doesnt whine.lets say rc,3am,ratdog,lady across the street,barking,leo's.

VeryBumpy · 03-26-2009, 03:50 PM

Quote:

Originally Posted by thatguy

can anyone else back this up? ive been searching for years to find a modern esc that doesnt whine.lets say rc,3am,ratdog,lady across the street,barking,leo's.

+1

If this ESC is quiet, I'll be getting one.

RCMFMaxxMan · 03-26-2009, 03:53 PM

i talked to castle creations about this issue because the mamba max is particularly loud. I think they said that it is the BEC that makes that noise and that all BECs make noise. I think it was the BEC at least. I'd say all ESCs make a noise but some are quieter than others and some may be different frequencies as well that might be less noticeable to the human ear. Usually the motor is just as loud or louder than the ESC though (except the mamba max).

VeryBumpy · 03-27-2009, 02:41 PM

So only one person has a quiet ESC?

How about the BEC theory, anyone running that and notice noise or not?

MCSCOTT · 03-27-2009, 02:45 PM

Honestly thinkin about it now, I run Sidewinders in all three of my rigs, and haven't paid much attention to it because the 5955 servo's on those make so much noise. Thinking about it now though, one of those rigs I have the very quiet running 7955 servo, and you don't really hear a sound when running it if I'm remembering right. I can also note on all of those I'm running an external BEC, so the BEC being what's making noise could be why my ESC's are quiet.

Honestly pretty much any you get may or may not make some noise. Depending on your motor the motor may end up making more noise than the ESC even. Then on top of that you may end up with a servo that makes alot of noise. Most likely none of these will be enough to wake the neighbors, so I wouldn't worry about it too much.

Squadfer · 03-27-2009, 02:57 PM

I've had my FX-r for over a year and I have yet to hear any noise come from it. All I hear is the transmission gears on my rig.

Harvo · 03-27-2009, 03:21 PM

Rooster Crawler - Loud
Tekin FXR - Zero Noise
Tazer 12T - Crappy ESC but no noise

thatguy · 03-27-2009, 03:25 PM

the noise problem is the new dog across the street barking and throwing itself into the window trying to get to my rc. with a msc the dog just sits there watching it go by. put a esc in and the dog freaks out.

RCMFMaxxMan · 03-27-2009, 03:40 PM

Quote:

Originally Posted by thatguy

the noise problem is the new dog across the street barking and throwing itself into the window trying to get to my rc. with a msc the dog just sits there watching it go by. put a esc in and the dog freaks out.

msc? mechanical speed control? they still make those things? haha just teasin. I'd say you nailed it. The noise problem IS the dog. It's not your problem. If anything, I'd be complaining to the owners of the dog. And if they happen to complain about your electric rc crawler (the quietest rc cars out there), get a nitro and teach them the old "it could always be worse" story. I don't think you have anything to worry about, dude. If you're still concerned, maybe just don't drive it in view of the dog?

MOVIN-SLOOOOOOW · 03-27-2009, 03:54 PM

When it stops making noise is when you have to worry:-p

Lonewolf · 03-27-2009, 04:12 PM

Bells beeps whines all good things its the zzzzzzzzzzztttttttt Then quiet as the lil jene creeps out thewn the smell..............

Then you realize its time to buy another esc.........motor?????????

noise is good heck my maxx rig with a mamba max and a big ole outrunner fin******* thing is noisy lol
Dead things dont speak living do = noise is good

Espeefan · 03-27-2009, 10:49 PM

I'll second, or third the Tekin FXRs being very quiet. I wanted to say it was silent, but I could not remember for sure. My friend runs one on his AX-10, and I just bought two for myself. I remembered it being a lot quieter then most, but I'm so used to the noise, I never paid attention to it. If your speed controller is silent, then you'll probably hear the servos whining. I don't think you'll ever win.

Flip · 03-27-2009, 11:10 PM

The whine comes from the ESC's switching rate. The battery voltage is switched on and off at a high rate of speed. It is measured in cycles or even 1000's of cycles per second. If the switching rate gets too high to where you can't hear it anymore you get what is called RF heating. The motor will actually heat up but that is another topic in itself. Don't worry there are no ESC's out there that will do that. The motor also has an effect on how loud it is. The motor will act as a loudspeaker and amplify or attenuate the noise. In other words some motors will make the noise louder and some will be quieter.

VeryBumpy · 03-28-2009, 07:08 AM

Quote:

Originally Posted by Harvo

Rooster Crawler - Loud
Tekin FXR - Zero Noise
Tazer 12T - Crappy ESC but no noise

Bah, just ordered a Novak Crawler Edition Rooster ESC. Guess I need to get a different ESC right away and not even bother opening it the Crawler.

03-25-2009, 08:35 PM	#1
VeryBumpy Pebble Pounder Join Date: Mar 2009 Location: USA Posts: 171	High pitch whine noise, ack?!! Do all ESC make that annoying noise or are some quieter than others? I want a quiet car, that noise drives me nuts. Suggestions on which ESC are quiet? Looking at brushed type btw.

03-25-2009, 08:45 PM	#2
ultimate_monkey Rock Crawler Join Date: Mar 2009 Location: Victoria BC Posts: 988	pretty sure they all make that noise, i have yet to see one that doesnt, but i'm sure some one with more knolage wtill chime in haha untill there wear ear plugs or deal with it

03-25-2009, 11:59 PM	#3
Espeefan Rock Crawler Join Date: Jun 2006 Location: Wisconsin Posts: 570	The majority of brushed ESC all make some noise like that, at the very slow speeds. Some brushless (Castle Creations) ESCs are even worse. Turn up the music.

03-26-2009, 06:59 AM	#4
MCSCOTT Rock Crawler Join Date: Aug 2007 Location: Columbia, TN Posts: 813	You get use to it after a while, but they all make some kinda noise like that at low speeds. If you think that's bad, try using a Hi Tech 5955 servo.

03-26-2009, 07:26 AM	#5
VeryBumpy Pebble Pounder Join Date: Mar 2009 Location: USA Posts: 171	What about reducing the noise? Say maybe running 6 cells instead of 8 cells, which is quieter?

03-26-2009, 10:22 AM	#6
jevyguy Quarry Creeper Join Date: Jul 2005 Location: Utah Posts: 261	My Tekin FXR-Pro's don't make any noise

03-26-2009, 03:53 PM	#9
RCMFMaxxMan RCC Addict Join Date: Jun 2004 Location: ORegon Posts: 1,002	i talked to castle creations about this issue because the mamba max is particularly loud. I think they said that it is the BEC that makes that noise and that all BECs make noise. I think it was the BEC at least. I'd say all ESCs make a noise but some are quieter than others and some may be different frequencies as well that might be less noticeable to the human ear. Usually the motor is just as loud or louder than the ESC though (except the mamba max).

03-27-2009, 02:41 PM	#10
VeryBumpy Pebble Pounder Join Date: Mar 2009 Location: USA Posts: 171	So only one person has a quiet ESC? How about the BEC theory, anyone running that and notice noise or not?

03-27-2009, 02:45 PM	#11
MCSCOTT Rock Crawler Join Date: Aug 2007 Location: Columbia, TN Posts: 813	Honestly thinkin about it now, I run Sidewinders in all three of my rigs, and haven't paid much attention to it because the 5955 servo's on those make so much noise. Thinking about it now though, one of those rigs I have the very quiet running 7955 servo, and you don't really hear a sound when running it if I'm remembering right. I can also note on all of those I'm running an external BEC, so the BEC being what's making noise could be why my ESC's are quiet. Honestly pretty much any you get may or may not make some noise. Depending on your motor the motor may end up making more noise than the ESC even. Then on top of that you may end up with a servo that makes alot of noise. Most likely none of these will be enough to wake the neighbors, so I wouldn't worry about it too much.

03-27-2009, 02:57 PM	#12
Squadfer Pebble Pounder Join Date: Nov 2007 Location: Houston Posts: 135	I've had my FX-r for over a year and I have yet to hear any noise come from it. All I hear is the transmission gears on my rig.

03-27-2009, 03:21 PM	#13
Harvo I wanna be Dave Join Date: Mar 2008 Location: In the Dark Edges of your Mind Posts: 6,386	Rooster Crawler - Loud Tekin FXR - Zero Noise Tazer 12T - Crappy ESC but no noise

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03-27-2009, 03:25 PM	#14
thatguy Quarry Creeper Join Date: Jul 2005 Location: pleasant ridge Posts: 317	the noise problem is the new dog across the street barking and throwing itself into the window trying to get to my rc. with a msc the dog just sits there watching it go by. put a esc in and the dog freaks out.

03-27-2009, 03:54 PM	#16
MOVIN-SLOOOOOOW Quarry Creeper Join Date: Feb 2009 Location: IN MY HOUSE Posts: 251	When it stops making noise is when you have to worry:-p

03-27-2009, 04:12 PM	#17
Lonewolf Rock Crawler Join Date: Sep 2008 Location: N.E. Mpls Posts: 854	Bells beeps whines all good things its the zzzzzzzzzzztttttttt Then quiet as the lil jene creeps out thewn the smell.............. Then you realize its time to buy another esc.........motor????????? noise is good heck my maxx rig with a mamba max and a big ole outrunner fin******* thing is noisy lol Dead things dont speak living do = noise is good

03-27-2009, 10:49 PM	#18
Espeefan Rock Crawler Join Date: Jun 2006 Location: Wisconsin Posts: 570	I'll second, or third the Tekin FXRs being very quiet. I wanted to say it was silent, but I could not remember for sure. My friend runs one on his AX-10, and I just bought two for myself. I remembered it being a lot quieter then most, but I'm so used to the noise, I never paid attention to it. If your speed controller is silent, then you'll probably hear the servos whining. I don't think you'll ever win.

03-27-2009, 11:10 PM	#19
Flip Quarry Creeper Join Date: Apr 2007 Location: St. Louis Posts: 267	The whine comes from the ESC's switching rate. The battery voltage is switched on and off at a high rate of speed. It is measured in cycles or even 1000's of cycles per second. If the switching rate gets too high to where you can't hear it anymore you get what is called RF heating. The motor will actually heat up but that is another topic in itself. Don't worry there are no ESC's out there that will do that. The motor also has an effect on how loud it is. The motor will act as a loudspeaker and amplify or attenuate the noise. In other words some motors will make the noise louder and some will be quieter.

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