JLD Bridge Doctor

JLD Bridge Doctor

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JLD Bridge Doctor Screw mount

Screw mount

Item # 3694
In stock, ready to ship!

$22.50

3 or more $20.02
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JLD Bridge Doctor Brass pin mount

Brass pin mount

Item # 3695
In stock, ready to ship!

$52.75

3 or more $46.95
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JLD Bridge Doctor

About This Item

• Enhances volume
• Flattens 'bellied' soundboards

A unique solution to a common bridge problem, this spruce device attaches beneath a guitar bridge. An adjustable spruce "pressure post" rests against the tail block, providing leverage to flatten the soundboard.

The spruce block is 3/4" x 1-5/8" x 3-3/8" tall. The 1/4"-diameter tension rod is 9" long. The mounting post has three different positions to accomodate a variety of bridge styles.

Screw mount: This spruce device attaches beneath the bridge via an inlaid screw (a white pearloid dot is included to hide the bridge screw). An adjustable spruce pressure post rests against the tail block, providing leverage to flatten the soundboard. Better bridge contact and alignment can also enhance sound projection.

Brass pin mount: The pin-mounted version of the JLD Bridge Doctor attaches beneath the bridge using a threaded brass bridge pin. The strings mount horizontally through the tops of the matching brass bridge pins (included).

StewMac Tech Tip: We recommend the brass pin mount version for 12-string guitars.

Video

Instructions

Product Instructions

JLD Bridge Doctor Instructions

How to install the JLD Bridge Doctor in an acoustic guitar.

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4.5
  • 4.65 average rating from 156 reviews
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5.0

Worked great!

By

Verified Buyer


Bowed-up cedar top is now flat, the action is back where it belongs, and it sounds great. I was a little intimidated looking at how it installs, but it ended up being straight forward once I had got my mind right about drilling a hole in the bridge.

5.0

Glad I Came Across This

By

Verified Buyer


I installed the JLD Bridge Doctor on a 45 year-old Yamaha 12 string I've had since high school. I have never heard sounds so crisp and clear until now.

5.0

Full confidence and satisfaction

By

Verified Buyer


I put one into each of my cheaper acoustic guitars, I was immediately amazed at the improvement in sustain and brightness of sound. I've had a Martin pre war style D-18 for 10 years, not playing it much because it had to be played "heavily" and sounded muddy to me especially in the humid spring-summer months, Finally after much decision I recently purchased one and put it into the D-18. I pick it up every night now instead of leaving it in its case for weeks on end, Seems a lighter touch is a thrill for playing a dreadnaught and it sounds better than before. An added advantage, a small bulge and lifting of the saddle has disappeared. DO NOT TIGHTEN the screw too much, just enough to feel the rod tighten. When the strings are put back on, they will give a strong pull to the cantilever rod. Patience is the virtue when installing it and only add a little pressure to fix a bulge over an extended period of time. Let the wood have time to heal.

5.0

Works as advertized

By

Verified Buyer


It's actually quite easy to install and it flattened the belly of my Mitchel 12 string nicely. It's great having the soft touch back to my guitar.

5.0

Genius!

By

Verified Buyer


This makes previously mediocre guitars playable.

5.0

Worked as described,

By

Verified Buyer


Big Kay Kraft Recoding King Jumbo wanted to belly up and the Doc showed up in the nick of time, no more belly probs.
I expected nothing less, it's from Roswell NM, obviously reverse-engineered alien tech :)

5.0

The Guitar Salvator

By

Verified Buyer


I put one of these into my 1886 parlor guitar which had been enjoying a silent retirement due to flat top fatigue. The Bridge Doctor acts like a wooden spring, pulling the face back into line, the action back to its proper place and the bonus is the spring post which increases the volume significantly. Since then I've put Bridge Doctors into 2 hand made guitars, and all are better for their visit to the bridge doctor. Putting one of these into a cheap old Yamaha gave it a new and better voice and a future as a decent guitar.

5.0

Great little fix it tool

By

Verified Buyer


Bought this to take the belly out of an older 12 string. Easy to install and immediately made a difference. Great fix for older (and newer, I guess) guitars

5.0

Great device and not just for fixing bellying

By

Verified Buyer


I do guitar repair and have installed these things on at least a dozen guitars at this point and I love them.

1. A couple thing to note: What John Albanese said below! If you're working with a bridge that tapers toward the back edge or is already thin, the countersunk head can split the bridge. I put a small washer in there to keep it from doing this.

2. I recently installed one of these an an Alvarez cedar-topped guitar. I know this guitar inside and and out; have been playing it for years. The Bridge Doctor not only corrected the bellying, but improved the sound SIGNIFICANTLY. I'd only used the device on spruce-topped guitars before this and had noticed a slight improvement in sound on some guitars, no change on others. But on the cedar top, the improvement is huge! In a recent issue of *American Lutherie*, someone who observed a similar improvement in sound suggested that it has to do with stiffening the top and working the way a Compressor does in recording; it focusses the sound. I don't know about the principles involved, but the effect on this particular guitar was dramatic.

5.0

Great fix!

By

Verified Buyer


I've seen varying reviews of this little gizmo so was unsure as to whether it would work. I have a few guitars needing a neck reset that frankly aren't worth the expense but are still worthy of a few more years of playing so I thought I'd try this on an old 70's Aria Martin copy. Great sounding guitar I found covered in dust in a junk shop, but a little abused. The action and bulge, although playable were about at the end of their run and something was going to be needed shortly. The installation was a breeze especially with the StewMac instructional video. I had it installed in about 30 minutes, and I'm no luthier. Drilling the hole takes a little care and a hand drill is recommended. Really satisfied with the results. The bulge is gone and the guitar geometry is spot on. The old Aria hasn't played that well in about 40 years I'm sure. I'd recommend it. It may not solve every issue but as a starting point, this little guy is a gem.

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StewMac PDF Catalog, page 31 See JLD Bridge Doctor
on page 31 of our StewMac Digital Catalog