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Bass Extensions

K.C. Strings C Extensions

Brass Slide C Extension
Brass Slide C
Extension
Brass Gated C Extension
Brass Gated C
Extension
Wood Gated C Extension - Natural
Wood Gated C
Extension - Natural
Wood Gated C Extension - Black
Wood Gated C
Extension - Black
 

These extensions are truly unique. They are easy to install, easy to adjust and do not mutilate the scroll like other extensions.

Our extensions are made of brass or wood. Both help conduct the acoustic vibrations onto the scroll. This is due to the extension string going around the scroll and pressing the extension body to the scroll. This helps transfer the vibrations from the extension onto the entire scroll. This results in the scroll becoming a part of the vibrational amplitude of the bass itself. Most will notice a richer, deeper increased volume of sound to their 'E' string after the extension is installed, even with the E gate closed.

The slide extension is for Jazz players. Having no gates allows the player to improvise playing notes on the extension with their hands. The gated extension is for classical players that want the gates to be set at precise notes. That way when the E gate is flipped open then the lowest note in the music can already be pre-set with another gate above. The gated extension comes with the 5 gates already shown. (Replacement gates can be purchased separately).

Among the many jazz and classical professionals using our extensions are: Principal bass of Boston Pops, Principal bass of Indianapolis Symphony, and Principal bass New Orleans Symphony.

BXTSCB Brass Slide-C Bass Extension   $ 600 Add to Cart
BXTGCB Brass Gated-C Bass Extension   $ 600 Add to Cart
BXTGCWN Wood Gated-C Bass Extension - Natural   $ 750 Add to Cart
BXTGCWB Wood Gated-C Bass Extension - Black   $ 750 Add to Cart
BXTIG Replacement individual gate for wood C-Extension   $ 55 Add to Cart
BXTIGB Replacement individual gate for brass C-Extension   $ 55 Add to Cart

Brass extension with installation: $1,350.

Wood extension with installation: $1,500.

 
 

Slide Extension

  • The brass extension with ebony fingerboard has a unique sliding, self-clamping gate.
  • The string glides effortlessly on rollers through the body of the extension and around the scroll.
  • The extension can be easily adjusted to fit on any bass without cutting into the scroll. (See slide C-Extension Installation Instructions)
  • Extension weighs 3 lbs. 

K.C. STRINGS B and C EXTENSIONS K.C. STRINGS B and C EXTENSIONS  K.C. STRINGS B and C EXTENSIONS

The Lever Arm is under spring tension and automatically clamps the attached Lever Foot on top of the string. The unclamping of the string is done manually by pressing the Lever Arm down, using the Thumbpiece below it as support for the hand. With the Lever Arm pressed down, the Gate easily slides along the length of the Gate Runway to any position. Any notes below the clamped Lever Foot are then fingered.

K.C. STRINGS EXTENSIONS

* The top of the scroll needs to be at least 1.5cm below the "neck projection line" (for standard use).
* The Finger board needs to be about 1cm in side thickness

The top of the scroll needs to be at least 1.5 cm below the projected "neck projection line" (for standard use) (shown in the picture above in dotted blue-green). The finger board needs to be about 1 cm in side thickness.

The Wood Shim and extra long Extension Body are cut down to fit individual scrolls. Instructions and all parts for installation come with the extension. A craftsman with hand plane and tool skills can do the work.


K.C. Strings Brass Slide-C Bass Extensions Slide-C Brass Bass Extension

Gated Extension


K.C. Strings Brass Gated Bass Extensions Gated-C Brass Bass Extension
K.C. Strings Wood Gated Bass Extensions - Natural Gated-C Wood Bass Extension - Natural
K.C. Strings Wood Gated Bass Extensions - Black Gated-C Wood Bass Extension - Black

Individual Gate Assembly - Wood

Bass extension individual gate assembly - wood


Individual Gate Assembly - Brass

Bass extension individual gate assembly - brass


What to do if the scroll is at or above the neck projection line:

The Gated C-Extension will still work even if the scroll is at or above the neck projection line and no cutting of the scroll will be needed; When our extension is on a bass with the scroll that is 1.5 cm below the neck projection line then all gates open and close on the string normally. This is done by using only the top two fingers of the left hand (and the thumb underneath the brass extension body). When the scroll is higher then the neck projection line then the C string is very high above the extension fingerboard due to the fact that the extension itself is resting on top of the elevated scroll. So you have to press the "C" string down with the bottom two (pinkie) fingers of the left hand before you can close the first gate with the usual top two fingers.

Once one of the gates is closed with this two step process then the "C" string is pressed down and any other gate can be opened and closed with the usual one step process. This extra first step is so quick that it won't interfere with the playing at all.

  • Bass C-Extension Gated - Individual Gate

    Bass C-Extension Gated - Individual Gate
    $55.00

    Individual Gate Assembly - For Bass Extensions - Wood Each individual gate is easily adjustable for height (of the string) and placement along the extension body. The gates open and close with ease. (See Extension with...

  • Bass extension individual gate assembly - Brass

    Bass C-Extension Gated - Individual Gate - Brass
    $55.00

    Individual Gate Assembly - For Bass Extensions - Brass Each individual gate is easily adjustable for height (of the string) and placement along the extension body. The gates open and close with ease. (See Extension...

  • K.C. Strings Brass Slide-C Bass Extension

    Brass Slide-C Bass Extension
    $600.00

    Slide C Bass Extension These extensions are truly unique. They are easy to install, easy to adjust and do not mutilate the scroll like other extensions.   Our extensions are made of brass and help conduct the...

  • Brass Gated-C Bass Extension

    Brass Gated-C Bass Extension
    $600.00

    Gated-C Brass Bass Extension These extensions are truly unique. They are easy to install, easy to adjust and do not mutilate the scroll like other extensions.   Our extensions are made of brass and help conduct the...

  • Wood Gated-C Bass Extension - Natural

    Wood Gated-C Bass Extension - Natural
    $750.00

    Wood Gated-C Bass Extension - Natural These extensions are truly unique. They are easy to install, easy to adjust and do not mutilate the scroll like other extensions.   These extensions are made of wood and...

  • Wood Gated-C Bass Extension - Black

    Wood Gated-C Bass Extension - Black
    $750.00

    Wood Gated-C Bass Extension - Black These extensions are truly unique. They are easy to install, easy to adjust and do not mutilate the scroll like other extensions.   These extensions are made of wood and brass...

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