Arcotech American Ebony Upright Bass Fingerboards




Sound Composites Arcotech carbon graphite fingerboards are competitively priced direct replacements for standard Ebony wood boards. These durable classical-styled stringed instrument fingerboards produce even and warm tonal characteristics while dramatically reducing repair and replacement.

Sold at the price of Grade A Ebony

“As you well know, to get good Ebony is becoming harder and harder. To tell the truth, we have to find the replacement for Ebony in near future.”    Shiny Tamura, YAMAHA CORPORATION   2008/05/20

Sound Composites Arcotech fingerboards for classical-style stringed instruments are designed to have the overall textbook density of Ebony. Thus, they are entirely compatible with wood-necks instruments.

Sound Composites has developed a material designed for optimal technical and sonic outcomes. Arcotech Fingerboards are supremely stable and do not move, wear or groove. Each fingerboard has a non-wearing and moisture-proof surface.  They are thus stable and impervious to string wear.  These fingerboards are satin smooth to the touch, tonally consistent and even throughout the entire fingerboard, provide a traditional aesthetic, and notably, fibrous carbon is not present close to the fingerboard surface. This is the area which may be tooled by some in the dressing of the fingerboard surface. Resultantly, the area to be dressed is friendly to work and is formulated to not wear cutters.

Sound Composites Arcotech fingerboards are not reliant on density to deliver their ‘non-wearing’ surface, even when using abrasive strings. Sound Composites does not have to compromise due to the perceived hardness and density needs of other manufacturers.  Please read more detailed technical and use information at the bottom of this page.

American Ebony Carbocore Classic:

Incorporate the tested non-wear characteristics of the satin black Sound Composites board surface with a lightweight chambered internal core embodiment.

ARC-4: 4- string Bass Viol Fingerboard

1.74” {44 mm} & 3.53” {90 mm} widths

34.75” {880 mm) length

0.3125” {8 mm} side walls

4-st: List Price : $285

Our Retail Price: $240 direct


ARC-5: 5-string Bass Viol Fingerboard

1.77” {45 mm} & 3.70” {94 mm} widths

35.0” {890 mm) length

0.3125” {8 mm} side walls

5-st: List Price: $305

Our Retail Price: $279 direct


ARC-6: 6-string Bass Viol Fingerboard

2.62” {66 mm} & 4.22” {108 mm} widths

34.75” {890 mm) length

0.3125” {8 mm} side walls

6-st: List Price: $375

Our Retail Price: $318 direct

Dealer and OEM/volume purchase inquires encouraged.


Sound Composites Classical Stringed Instrument Fingerboards allow for use of traditional installation techniques with great results.  Advantages include:

1             Tooling is minimal. The boards are provided in standard size blanks. A tooling matrix material is placed on the sides and at the end of the boards that can be easily tooled to fit the board with the instrument neck during installation. We position the structural carbon within the board so that luthiers will avoid contacting this stiff, abrasive material along other core materials.

2             Initial board surfacing and need for resurfacing is minimal. Boards are supplied with the proper minimum standard of relief. The low-friction graphite-based tooling medium is uniformly consistent, resulting in easy dressing of the surface. Since there is no grain, there isn’t any blow or chipping when properly working the material. Standard scrapers, files and sandpapers are all appropriate.

3             The fingerboards offer outstanding durability. Sound Composites boards in constant use have not needed refinishing since installations as long ago as 1981. Thus intermittent redressing and periodic replacement are no longer required.

4             The fingerboard surface is stable. There is no swelling or movement on the board surface due to changes in humidity and/or temperature. Therefore the boards never require redressing. This is in contrast to the routine return of instruments with Ebony boards for removal of these periodic buzz-producing inconsistencies.

5             The boards may optionally be supplied with a 0.025” maple veneer on the back ‘glue’ surface to facilitate the use of traditional hide glue. For boards provided without backing, aliphatic resin (Tight Bond/yellow glue) is an excellent choice.

6             Sound Composites fingerboards have a smooth, low friction surface for ease in playing. Player often comment that instruments with these boards are very comfortable in the hand.

7             Moses fingerboards contribute to high quality tone production. This is due to the consistency of the material surface, coupled with the tremendous ability of the ‘tonally filtered’ carbon fiber to move vibration through the neck beam.

8             All Sound Composites stringed instrument components have a visually pleasing ‘natural’ aesthetic due to the soft, lustrous quality of our surface material. Refinishing with 0000 steel wool or 600/800 sandpaper maintains this look. A relaxed eye often believes that they are made of Ebony until the difference is pointed out.

  • facebook