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Double Bass Looking for 34" or 35" electric uprights
- Thread starter jamiefoxer
- Start date
I use a big twin which is overkill. it took me a long time to get a decent sound, Bob Gollihur was helpful. This is the final set up: I use 2 of the piezo pads underneath the bridge feet, between the piezo pad and the bass body is a cork shim, the other 2 pads are stuffed into the body and they are basically non functional. I put a piece of foam underneath the strings at the nut which dampens the open string sound. My next project will be the same basic design but a longer scale length, to better reproduce the 3/4 upright scale length
Did you try with the cork shim between the bridge feet and pup pads too? (the pads directly on the body)
The order of placement goes:
1. Instrument body, 2. cork pads, 3. piezo pad, 4. bridge foot, hopefully you can see this from the photo. The problem I was having was the tone of the instrument was too bright, placing the cork between the piezo pad and instrument body dampened the sound as did placing foam under the strings at the nut. (I had to shape the cork shim like a wedge because with the tensioning of the strings there was a tilt to the bridge due to the compression of the cork) AUB's have lots of wood that dampening the tonal sound of these instruments. My EUB needed more dampening so that it had more thump just like an AUB.
1. Instrument body, 2. cork pads, 3. piezo pad, 4. bridge foot, hopefully you can see this from the photo. The problem I was having was the tone of the instrument was too bright, placing the cork between the piezo pad and instrument body dampened the sound as did placing foam under the strings at the nut. (I had to shape the cork shim like a wedge because with the tensioning of the strings there was a tilt to the bridge due to the compression of the cork) AUB's have lots of wood that dampening the tonal sound of these instruments. My EUB needed more dampening so that it had more thump just like an AUB.
I made everything on this instrument. The bridge, tailpiece and FB are made from Dymondwood [Invalid or Expired Link Removed]. It is a wood product made by laminating hardwood veneers and epoxy. It is very, very hard. The adjusters are what is used on archtop guitar bridges. The dymondwood is not the easiest material to work with - you have top grind, cut (carbide saw) or sand it to shape - you cannot chisel or file it. It would make great FB for DB, much harder than ebony.
I did not try that, good suggestion. I think this would require trying various materials so that the dampening was just right. I tried a few different shim materials - 2 kinds of felt and rubber, they didn't hold up well or produce the desired dampening. The cork I use has rubber impregnated into it - it is used for gaskets on automobiles, comes in a sheet available at auto part stores. I think the 34/35" scale EUB has possibilities especially for BG players like myself. It fits into a BG gig bag, intonation is the same as BG and there are lots of 34-35" long scale BG strings available. A redesign would be to make the stand lighter and more compact
