Yamaha DTXpress/DTXplorer/DTXtreme

I have the details about sound levels. I will have to find them at work but
I think it is a max of 90db for up to 1 hour.then for every 10db above that
the time is halved. e.g 100db is 30 mins
110dbs is 15 mins
120db is 71/2 mins

so once you get to 150 bd you don't get very long to listen.

Don't quote me on these figures but I think they are pretty close. These are
workplace maximum working levels.

Gunny

  -----Original Message-----
  From: rdamon@... [mailto:rdamon@...]
  Sent: 29 March 2004 17:56
  To: DTXpress@yahoogroups.com
  Subject: RE: [DTXpress] Re: main volume too low!


  --- In DTXpress@yahoogroups.com, Joel Pollock <joelp@n...> wrote:
  > thanks!  great feedback. i hadn't even checked the volume of the
  kit.  i
  > reset it to the factory settings...do you know if the kit is 127 at
  the
  > factory setting.

   The volume issue has been with us since the first dtxpress I kit. I
recently emailed Yamaha asking why the headphone amp has always had a
relatively low volume. In the process of asking the question in a diplomatic
fashion, I may have answered my own question.

  Considering the large number of people that think they can take no
responsibility for their actions and the large numbers of lawyers, it would
make sense to limit the volume levels sent out through the headphone jack.
If the headphone jack was capable of producing 150db sound level, hearing
loss would be incurred and lawsuits would follow. By limiting the levels,
and putting warning labels in the manuals, then lawsuits from hearing loss
can be reduced. When you take the sound out the back (which is line level
only) through the L/R outputs and run them through your amp, then thier
liability is also, eliminated.

  I have not taken a sound meter (I have one and will test it) and measured
the sound levels coming out my headphones (run through mixer with a built-in
headphone amp) but I know that it is louder than what I should responsibly
be listening to for prolonged periods.

  When I had my accoustic set, the headphones simply could not compete with
the volume levels coming from the drums themselves, thus I would have to
play the music coming from it's source at a higher than safe volume to get
it to blend in with the actual drum sound levels. As a teenager and through
my early twenties, I did not use any hearing protection, hence I have a
constant ring in my ears now. When I reached thirty, I would use ear plugs
in addition to the headphones, to reduce the actually sound levels that
reached my ear drums.

  With the head phone amp you can acheived acceptable levels, but I would
recommend to the younger folks, who haven't had hearing damage yet, like
some of us old guys/gals have, to buy the best closed back headphones, with
the highest level of db reduction you can find. This will allow you to
reduce the level of the music you are playing along to for extended periods
of time, and in the end minimize long term hearing loss.

  OldGuyDrummer




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