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Why are the front wooden panels of an upright so thick and h #2801379
01/12/19 07:51 PM
01/12/19 07:51 PM
Joined: Mar 2012
Posts: 38
UK
J
Jt2nd Offline OP
Full Member
Jt2nd  Offline OP
Full Member
J

Joined: Mar 2012
Posts: 38
UK
Most heavy wooden parts of a piano are structural but my upright has thick , heavy front panels held in place with a few springs and plastic turn buckles . The lower surface panel may protect against knocks and bumps but the top is in between the player and the sound source . Is there a logical reason for this arrangement?

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Re: Why are the front wooden panels of an upright so thick and h [Re: Jt2nd] #2801435
01/13/19 12:10 AM
01/13/19 12:10 AM
Joined: Oct 2013
Posts: 3,737
Kuwait
PhilipInChina Offline
3000 Post Club Member
PhilipInChina  Offline
3000 Post Club Member

Joined: Oct 2013
Posts: 3,737
Kuwait
On my upright the panel to which you refer is neither thick, nor heavy.

What make and model is yours?


Currently working towards "Twinkle twinkle little star"
Re: Why are the front wooden panels of an upright so thick and h [Re: Jt2nd] #2801474
01/13/19 07:14 AM
01/13/19 07:14 AM
Joined: Feb 2009
Posts: 1,603
PA
daniokeeper Offline
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daniokeeper  Offline
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Joined: Feb 2009
Posts: 1,603
PA
They might be using composite material rather than just wood.


Joe Gumbosky
Piano Tuning & Repair
www.morethanpianos.com
(semi-retired)
Re: Why are the front wooden panels of an upright so thick and h [Re: Jt2nd] #2801514
01/13/19 10:18 AM
01/13/19 10:18 AM
Joined: May 2007
Posts: 1,633
Scotland
D
David Boyce Offline
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David Boyce  Offline
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D

Joined: May 2007
Posts: 1,633
Scotland
I think Joe is right.

Many fine older uprights had 'top doors' (front panels) made from nice hardwood as a frame with inset thin hardwood panels (like my 1930s Weissbrod) and they are lightweight.

Particle board panels made from composite materials like MDF (Medium Density Fiberboard) are heavy because they are thick, and made partly of glue, and in addition coated with thick polyester. Solid plywood panels were heavy too, though I think less so than MDF.

The old Victorian-era idea of the fretwork panel backed with silk, was a nice idea acoustically (even though use on lost of awful, cheap pianos) as it let the sound out.

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Re: Why are the front wooden panels of an upright so thick and h [Re: Jt2nd] #2801590
01/13/19 03:12 PM
01/13/19 03:12 PM
Joined: Jan 2011
Posts: 1,574
Canberra, ACT, Australia
C
Chris Leslie Offline
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Chris Leslie  Offline
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C

Joined: Jan 2011
Posts: 1,574
Canberra, ACT, Australia
For me it is often an improvement in sound to hear the piano after the cover is put back. Particularly Yamaha.


Chris Leslie ARPT
Piano technician
http://www.chrisleslie.com.au
Re: Why are the front wooden panels of an upright so thick and h [Re: Jt2nd] #2801607
01/13/19 03:58 PM
01/13/19 03:58 PM
Joined: May 2007
Posts: 1,633
Scotland
D
David Boyce Offline
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David Boyce  Offline
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D

Joined: May 2007
Posts: 1,633
Scotland
Oh yes, an interesting thought. I imagine that there might be a distinction between pianos where a heavy front panel is a deliberate part of the acoustic design, and cases where it's simply a matter of cheap production.....

Re: Why are the front wooden panels of an upright so thick and h [Re: Jt2nd] #2801845
01/14/19 09:29 AM
01/14/19 09:29 AM
Joined: Feb 2017
Posts: 1,750
New Hampshire
P
P W Grey Offline
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P W Grey  Offline
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P

Joined: Feb 2017
Posts: 1,750
New Hampshire
I dislike the ones that have the front panel permanently attached to the fallboard assembly. This is awkward, heavy, and somewhat risky. I don't know why they designed them that way.

Pwg


Peter W. Grey, RPT
New Hampshire Seacoast
www.seacoastpianodoctor.com
pianodoctor57@gmail.com
(Best way to contact me privately)
Re: Why are the front wooden panels of an upright so thick and h [Re: Jt2nd] #2801918
01/14/19 12:53 PM
01/14/19 12:53 PM
Joined: May 2007
Posts: 1,633
Scotland
D
David Boyce Offline
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David Boyce  Offline
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D

Joined: May 2007
Posts: 1,633
Scotland
Totally agree.


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