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Author Topic: Yamaha DXR12 vs JBL PRX612  (Read 13756 times)

Richard Stringer

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Re: Yamaha DXR12 vs JBL PRX612
« Reply #10 on: October 01, 2012, 01:46:44 pm »

Yeah but come on, that's a crap way of mixing and for anyone used to using a dj monitor, it totally messes things up because mixing using the dj mixer headphone mixer section takes some getting used to. And thanks for the help with my original question, you lot have been about as useful as a marshmallow strap on dildo.
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George Friedman-Jimenez

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Re: Yamaha DXR12 vs JBL PRX612
« Reply #11 on: October 01, 2012, 02:06:02 pm »

Richard, do you use hearing protection? The scientific evidence is very convincing that being exposed to the SPLs that either of these speakers would produce in the nearfield when run anywhere close to their limits put you at very high risk for occupational hearing loss. Either of those speakers is very capable of producing 120 dBA slow continuously without breaking a sweat. Even if you run each of a stereo pair at an average of 118 dBA slow at 1m and have the speakers each 2 m from your head, you would be exposed to an average of 118 dBA during your workshift.

I don't know the noise standards in England work, but I do know very well how they work in the US. This is not really about regulatory actions against you or your employer, but rather that the regulatory standard for loud sound reflects very solid scientific information that you can use to help protect your own hearing. The US Occupational Safety and Health Administration (OSHA) has set limits for sound levels in the workplace, based on scientific evidence of risk of hearing damage. OSHA standards are usually negotiated upward from the most health protective values (allowing higher SPLs) by industry for financial reasons. OSHA says an SPL of 90 dBA slow, Time Weighted Average, is permissible for 8 hours a day. This level is not guaranteed safe for all, but it will cause hearing damage in only a very few workers.

A much better and more protective guide to safe sound levels is the set of recommendations by the National Institute of Occupational Safety and Health (NIOSH), which recommends a maximum TWA of 85 dBA slow for 8 hours a day. The NIOSH recommendations have been much less affected by pressure from industry to relax the limits, and correlate better with the known scientific evidence. NIOSH recommends that no worker be exposed to 94 dBA for more than 1 hour per day, 100 dBA for more than 15 minutes a day, 110 dBA for more than 1 minute 29 seconds a day or 120 dBA for more than 9 seconds a day. These recommendations assume no additional loud sound exposure that day. For example, the recommended limit of 9 seconds for 120 dBA would be even less if the person also had been exposed to 100 dBA for 5 minutes that day. So if you use your 118 dBA monitors for more than 14 seconds a day, you will be increasing your risk for long term permanent hearing loss.

Here is the NIOSH recommendation table, Table 1-1 on p. 2 of this document.
http://www.cdc.gov/niosh/docs/98-126/pdfs/98-126.pdf

All this may sound silly to you, but I can tell you from both first hand and professional experience, as a musician with a 55 dB hearing loss due mainly to loud music, and a physician who specializes in occupational medicine, that the risk of hearing loss is very real and very high when you expose yourself to sound as loud as you are suggesting in your posts.

I recommend that you go to an ENT physician and get a thorough hearing evaluation including a baseline audiometry if you have not yet had one. As a professional DJ you should also get repeat audiometry testing every year by a qualifiied audiologist, to screen you for long term progressive hearing damage. In addition, if you experience temporary symptoms after you leave a gig, such as ringing in your ears or difficulty hearing or understanding conversation when there is background noise, you should get before- and after-gig audiometry tests to look for Temporary Threshold Shifts (TTS). TTS are warning signs that often occur before permanent hearing damage occurs, and can alert you to take steps to reduce your exposure to loud sound before the damage becomes permanent.
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Brian Wilkinson

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Re: Yamaha DXR12 vs JBL PRX612
« Reply #12 on: October 01, 2012, 02:12:53 pm »

Yeah but come on, that's a crap way of mixing and for anyone used to using a dj monitor, it totally messes things up because mixing using the dj mixer headphone mixer section takes some getting used to. And thanks for the help with my original question, you lot have been about as useful as a marshmallow strap on dildo.

ROTFLMAO!!!!
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Samuel Rees

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Yamaha DXR12 vs JBL PRX612
« Reply #13 on: October 01, 2012, 04:37:29 pm »

I don't think so - the answer is that it doesn't matter which one is louder because you'll hurt yourself either way.
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Matteus Kza

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Re: Yamaha DXR12 vs JBL PRX612
« Reply #14 on: October 01, 2012, 05:06:38 pm »

Richard, try to get used to the headphones it will be better and cheaper. And like I said try the BOSE QUIETCOMFORT 15, they will issolate the outside sound and give a crystal clear sound to be perfect to mix with.

I have a DJ friend and he is really good. And he dosent use any monitors ;)

Anyway a answer direct to your question, the Yamaha have good HF for clearity, and would fit good for you ;)




ROTFLMAO!!!!


ROTFLMAO = ?
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Richard Stringer

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Re: Yamaha DXR12 vs JBL PRX612
« Reply #15 on: October 01, 2012, 06:08:16 pm »

Sorry I could of put it a better way and said the information was about as useful as sulphuric acid thrush cream. But anyway.......george, no I don't think what you said is silly at all. I decided i'm gonna go for the Yamaha but i'm gonna get the DXR12 though because I should think it might have better midrange than the 15" cab.
« Last Edit: October 01, 2012, 06:12:05 pm by Richard Stringer »
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Brian Wilkinson

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Re: Yamaha DXR12 vs JBL PRX612
« Reply #16 on: October 02, 2012, 10:07:33 am »

Richard, try to get used to the headphones it will be better and cheaper. And like I said try the BOSE QUIETCOMFORT 15, they will issolate the outside sound and give a crystal clear sound to be perfect to mix with.

I have a DJ friend and he is really good. And he dosent use any monitors ;)

Anyway a answer direct to your question, the Yamaha have good HF for clearity, and would fit good for you ;)





ROTFLMAO = ?

Rolling on the floor laughing my arse off
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Richard Stringer

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Re: Yamaha DXR12 vs JBL PRX612
« Reply #17 on: October 02, 2012, 11:40:11 am »

Rolling on the floor laughing my arse off

What I said was about about as funny as being put in a prison cell with a big tough gayboy. Is there much spl difference between the DXR12 and DSR12?

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Mac Kerr

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Done
« Reply #18 on: October 02, 2012, 11:44:23 am »

You can take the childish behavior somewhere else. Contrary to some opinions, it is neither funny nor called for.

Mac
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« Reply #18 on: October 02, 2012, 11:44:23 am »


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