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Hipshot BT1 Bass Xtender

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  • A not so secret weapon of elite bass players since 1982, the Xtender allows you to instantly drop the tuning of your low string and then back again with the flip of a lever. The BT1 is a direct replacement for the Schaller® BM tuner traditionally featured on MusicMan® and G&L® basses. Many independent custom builders choose this tuner as well.

    Drop a Major 2nd (E-D) and if your strings have standard thickness cores, you can go as low as a 4th. (E-B)

    Robust stamped and machined steel construction.

    27:1 tuning ratio.

    Fits 11/16" (17.5mm) headstock holes.

    Adjustable tension nylon bearing system.

    Stainless steel key prevents tarnishing and rust where you touch the tuner the most.

    Mounting hardware included.

    Available in Shiny Nickel.

    WARNING: This product can expose you to chemicals including nickel compounds, which are known to the State of California to cause cancer. For more information go to // Read Hipshot's side of the story.
  • Below are impressions and anecdotal thoughts gathered over the years about Hipshot Xtenders in general. Some are our own and some are from customers.
    • "Where has this been all my life?"
    • Makes jumping between different song tunings much easier
    • Quick Install
    • Holds tune very well
    • Stretch out new strings per usual for best performance

Customer Reviews

Based on 6 reviews
Craig Wright
Hipshot Bass Xtender BT12 / Chrome

Works like a charm, much better match for the newer Fender tuning pegs.

Duke Freeman c/o The News & Tribune
I Love this Xtender

I've been using Hipshot Xtenders on several of my basses. I rarely use a 5 string and the Xtender affords me the ability to drop the tuning on my E string to a preset tuning (Eb or D) which covers nearly all of my needed applications. You just tune it normally then release the lever and use the thumb screw to tune it to the lower note. Return it to the original position to get back to the open E. It's just that simple.
One thing I would encourage you to do is to make sure the "E groove" in your nut is smooth and the string moves freely through it, especially if you're using round-wound strings. If the string isn't moving freely it could affect your tuning when you return the lever back to it's original E position.
You can actually add a "double-stop" lever to some of the Xtenders that gives you a second tuning position.

Chris DelGaudio
Hipshot BT12 Bass Xtender

I added the BT12 to my Fender American Pro II Precision Bass. Super easy to install and set up. It is really great to be able drop D tune with the flick of a switch. Fat Bass Tone is always my first stop. Max and Brian are super responsive and knowledgeable. Just make one purchase and they will be your go to. Thanks guys. Appreciate you both!

Kevin Sanborn
Hipshot GB7 Extender for Spector Bass

Easy to install, looks just like the other tuners on the bass, works great!

MikeyM on Bass
It Works!!

Hipshots are great, they work and you can easily de tune to C# if need be. I Love ‘Em!