Author Topic: Lacking Sustain in the high end  (Read 566 times)

Offline imnickb

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Lacking Sustain in the high end
« on: July 21, 2019, 04:07:09 AM »
Hello, I've got a 200a and I've noticed that the top two and a half/three octaves have very little sustain. This is the case with our without using a sustain pedal. The low end rings out beautifully but things above middle c start to get worse. Any ideas on why this might be?

Also, do you have any recommendations on a tech I could use near Seattle? I don't mind having a professional look at it... If I can find one.

Online pianotuner steveo

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Re: Lacking Sustain in the high end
« Reply #1 on: July 23, 2019, 07:09:45 AM »
To a small degree this happens as the reeds get shorter, but if it is abnormal, you can try removing and cleaning a reed to see if that helps. Do not sand the reed, clean with a light oil. Especially around the mounting hole and the corresponding spot on the reed bar. Just do one and see how it sounds compared to its neighbors, before and after (record it first) be careful not to overtighten bolt when reinstalling, they are pretty easy to break.
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
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1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...

Offline Tim Hodges

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Re: Lacking Sustain in the high end
« Reply #2 on: July 23, 2019, 07:57:49 AM »
I agree with Steveo's suggestion. You'd be surprised at the difference it makes when you remove any surface rust from where the reed mates with the harp.

If that doesn't resolve the problem you might want to see if the harp is "torqued" or twisted on it's mounting brackets. To check remove the 4 screws which hold the harp down on the frame and see if it rocks at all. If it does then you need to shim those corners to prevent it (much like when you go to a restaurant and the table tilts, you place a few beer mats under one leg to stop it.)

If the harp was torqued the mounting screws would twist the harp and prevent some notes from ringing out properly, especially on the treble side which is more sensitive.
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Offline DocWurly

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Re: Lacking Sustain in the high end
« Reply #3 on: July 31, 2019, 10:06:34 AM »
Make sure that the upper harp has all 8 white silicone spacers below and above it.  Compare with the lower harp.  I've seen this a couple times as of late.

Online pianotuner steveo

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Re: Lacking Sustain in the high end
« Reply #4 on: July 31, 2019, 01:27:11 PM »
And also that the reed bar mounting screws are not over tightened... there should be a little play around those spacers, just a tiny bit.
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...

Offline cinnanon

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Re: Lacking Sustain in the high end
« Reply #5 on: August 02, 2019, 11:38:45 PM »
And also that the reed bar mounting screws are not over tightened... there should be a little play around those spacers, just a tiny bit.

:::scratching my head:::

 ???

Can you elaborate?

Online pianotuner steveo

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Re: Lacking Sustain in the high end
« Reply #6 on: August 06, 2019, 08:27:50 PM »
Maybe it's only true on the earlier models, but I am talking about the reed bar mounting bolts that go through the white plastic insulators.
On the early models, some were black rubber
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...