[CAUT] DC system on stage

[Mark Dierauf]

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Are these undercovers on pianos with dual tanks? With this type of
installation I find that the tanks are mounted to near the rims to use
undercovers, at least tightly stretched ones.
 
-          Mark Dierauf
-          Concord, NH
-           
-----Original Message-----
From: Andrew Anderson [mailto:andrew@andersonmusic.com] 
Sent: Tuesday, September 13, 2005 8:09 PM
To: College and University Technicians
Subject: Re: [CAUT] DC system on stage
 
Barbara,
I've used an undercover and there is no apparent sonic impact.  There
isn't supposed to be any.  It is stretchy, black, and covers things up
nicely.  At a distance people will not be able to discern that it is
"lumpy" because of the DC equipment.  I would do the undercover for that
reason alone, the additional benefit of isolating the climate there from
air-currents is just icing on the cake IMHO.

Andrew
At 06:25 PM 9/13/2005, you wrote:


Thanks, Mark.  If the proposal gets approved, I'll be in touch.
 
Barbara Richmond
 
PS  Any pictures?
 
 
----- Original Message ----- 
From: Mark Cramer <mailto:Cramer@BrandonU.ca>  
To: College and <mailto:caut@ptg.org>  University Technicians 
Sent: Tuesday, September 13, 2005 5:33 PM
Subject: RE: [CAUT] DC system on stage
Barbara, Bill,
 
Sorry Bill, I'm not a big fan of the carts either. 
 
They are removed from the piano at precisely the time I don't want
"anything" changing around the piano. 
 
We do use them in Banff, but only in the Rolston Recital Hall, and only
(I believe) because this is one hall where ambient conditions are indeed
monitored and controlled. 
 
I've encountered mold in only one instance Bill (sorry to hear of your
experiences); a new-to-me client with an 1970's L: the tank was plugged
directly into the wall... as in bypass the humidistat!  (need I say
more?) 
 
I'm not sure of the material Bill refers to Barbara, but the cloth
Dampp-Chaser's under-covers are made from will not absorb sound, they're
acoustic grille cloth. For all practical purposes: acoustic impact =
zero.
 
So I will vote for an installed system with undercover. 
 
The first benefit being to buffer the piano's climate from changes and
high air-movement within the hall.  
   
The second really, is to nicely hide the installation. Even if there is
the odd wrinkle or bulge in the cloth, from the front row the underside
of the piano looks like a "sea of black."
 
We've installed a few Barbara, so if I can provide any install tips;
cramer@brandonu.ca
 
Meanwhile, something the two of you (and others?) may be interested in
as well:
 
I've just installed an "un-plug" alarm in one of our ensemble rooms.
 
Un-plug the piano, and a concealed beeper sounds until the piano is
plugged back in. 
 
So far so good. I've posted instructions (that even music students can
read), the piano has been moved, and the "movee" figured out the
"prompt" immediately.
 
Sorry I cannot provide mechanical details, as one of our engineers
devised it. Basically it's a relay with a 9v batter and a pulse beeper. 
 
best regards to you both,
Mark Cramer,
Brandon University
 
 
 
 
 
 
 
 
 
  
 
 
 
 -----Original Message-----
From: caut-bounces@ptg.org [ mailto:caut-bounces@ptg.org
<mailto:caut-bounces@ptg.org> ]On Behalf Of Bdshull@aol.com
Sent: Tuesday, September 13, 2005 4:03 PM
To: caut@ptg.org
Subject: Re: [CAUT] DC system on stage
Hi, Barbara, 
 
My experience with buckets tight up to the soundboard is that the board
discolors, mold develops, and condensation causes hardwood floors to
betray water overhead.....Don't ask me how I know...but shortly after
that nasty experience several years ago Damppchaser extended the hanger
length considerably.  
 
A cover under the piano will certainly affect the reflection of
sound...but there are probably folks on the list who could tell you how
much, in their own experience....I'm interested too!   
 
Just to go with my "cart" idea again....the cart can be kept under the
piano on stage, and removed just for performances, of course....
 
OR....the piano can be equipped with heater bars and humidistat, and the
cart only with humidifiers, and used as much as possible.   
 
Bill Shull
 
 
In a message dated 9/13/2005 1:20:03 PM Pacific Daylight Time,
piano57@insightbb.com writes:
Thanks, Bill.
 
Hmm....my goal was a system that could always be plugged in (there are a
lot of outlets on that black stage floor), to avoid the syndrome of
nice-atmosphere-while-in-storage and then all heck breaks out when it's
moved on stage.  You know what I mean?
 
Barbara Richmond
----- Original Message ----- 
From: Bdshull@aol.com 
To: caut@ptg.org 
Sent: Tuesday, September 13, 2005 3:09 PM
Subject: Re: [CAUT] DC system on stage
In a message dated 9/13/2005 12:59:21 PM Pacific Daylight Time,
piano57@insightbb.com writes:
Hi all,
 
Does anyone have a picture of, or could direct me to a picture of a
Steinway D with a full DC system with undercover--preferably on a stage?
I have submitted a proposal for the DC system, but a friend pointed out
to me, that sometimes, because the humidifier buckets hang down a bit,
the piano looks.........pregnant.   I doubt my technical director would
be happy with such a look and would like him to see it before hand.
 
Thanks much.
 
Barbara Richmond, RPT
Barbara, If you could forego the undercover, you could modify the Jahn
stands which Dampp-chaser is experimenting with.  They are single system
carts with a leg on each corner, and need to be combined into a dual
system stand which straddles the truck;   I did this during the summer,
and will be sending Roger Wheelock the modification drawings when I "get
it together."   
 
Bill Shull


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