An adjustable bridge can be a godsend for your Upright Bass. It gives you the ability to vary the action for different styles, lower for jazz styles, where fingerboard buzz is a welcome seasoning, in the middle for general play where you want more note bloom or boom, and higher for bluegrass or rockabilly slap. Of course, adjustable height bridges are also often a necessity to compensate for seasonal changes on some carved instruments.
I have adjustable bridges on both my basses-- I like the ability to fine tune action, as well as raise it for an acoustic bluegrass jam so I can get maximum volume from string bloom room, or lower it for more fingerboard interaction when playing an amplified jazz gig.
Bridge Measurements (approx.)
center to center
(measured in arc)
|3/4 size:||4 inches||7 3/8 inches||5 1/4 inches|
|1/4 size:||3 3/4 inches||6 1/2 inches||4 1/2 inches|
|1/2 size:||3 7/8 inches||7 inches||5 inches|
|7/8-4/4 size:||4 3/4 inches||7 7/8 inches||5 1/2 inches|
These brand new high quality maple bridges have excellent quality, lightweight aluminum adjusters that were precision installed at the bridge maker's shop. All of our bridges are currently tapped to be used "threads up," meaning that the bridge body is where the threads are (the solid posts go into the feet.) They have finger-sized indents that makes their use easier and more comfortable, and these adjusters are available separately, below, if you want to upgrade a set or install them in an existing bridge yourself. I've posted a large, high resolution photo so you can see the detail of the high grade of maple used.
Instructions are included:
I will be glad to include my personal notes with tips on installing a double bass bridge! I am also glad to chat with you via email or on the phone if you have any questions. Installing a bridge isn't brain surgery, but does require careful planning and execution. Do you already have an adjustable or regular bridge that needs to be installed, or do you want to get an idea of the process?? Let me know and I'll send you the instructions via email, no obligation.
This Bridge is TOO BIG???
That's to be expected! Double basses have different neck angles, which results in the need for different sized bridges -- you can't buy a bridge "off the shelf" to immediately fit your bass. All bridges require fitting. I include instructions to advise you how to trim the top and feet of the bridge to fit your instrument.
The photo shows a similiarly sized bridge cut a bridge down to just 6" tall to fit a 3/4 size Kay; this specific photo is of the adjustable bridge I formerly sold. All 3/4 size bridges come with black adjusters as shown in the photo above.
How can I be sure I have the right size bridge?
If you look or feel inside through the E string f-hole, you will find the Bass Bar; it runs parallel to and below the E string. If you measure from the middle of the bar to the mid-point of the bass and double the measurement, you now know the proper measurement of the bridge's feet when measured from center to center. Choose a replacement bridge in that range (most basses are 3/4 size, approximately four inches from the center point of each foot ) with a height larger than your current bridge.