The pickup comes with universal size barrels to attach the jack housing equally well to both violin and viola bodies with just a few turns.
Instructions
1️⃣Choose the most convenient place for the jack housing depending on the type of your chinrest, size of your instrument and your playing technique. We recommend installing the jack housing on the left (G string). Some players prefer to install it on the right side, which works just as well.
2️⃣Extend the clamps by holding the pickup and the bottom feet of the clamp while loosening the center barrels. After choosing the desired position, tighten the barrels with the provided metal key.
3️⃣Some bridge slot openings will need to be widened slightly. We recommend 400 grit sandpaper, folding the paper appropriately to make it sturdy. If possible, use a thin piece of plastic or metal plate between the sandpaper. This will help while sanding and keep the sanded surface flat, which is important. Before you start sanding, use appropriately cut cardboard placed around the bridge to protect the varnish of the instrument. Widen the slot slowly, stopping frequently to try attaching the pickup sensor. This will avoid making the slot too wide.
4️⃣Install the sensor into the horizontal eye slot of the bridge on the 1st (E) string side, so that the cable is on the outer side of the bridge. Hold the bridge with your free hand so it does not move while installing the sensor. The sensor should fit tightly but install without force. It should not move while playing or even shaking the viola, but not too tight where the sensor or bridge can be damaged or broken.
5️⃣With the volume off, plug one end of your instrument cable into your pickup and the other into your favorite high-impedance acoustic amplifier. Hold the jack housing with one hand while attaching and detaching the cable.
You are now ready to enjoy your new pickup!
Video Review
| Specifications |
| Weight |
36gr / 1.27 |
| Wood |
Solid ebony |
| Maximum Impedance |
1500 Ω |
| Measurements |
| Specified part |
Letter |
Size in MM (from*) |
Size in MM (to*) |
Size in INCH (from*) |
Size in INCH (to*) |
| Pickup sensor side diameter |
a |
12,0 |
12,1 |
0,472 |
0,476 |
| Pickup sensor with extention diameter |
b |
12,7 |
12,8 |
0,500 |
0,504 |
| Pickup sensor bottom diameter |
c |
12,0 |
12,1 |
0,472 |
0,476 |
| Lead wire length |
d |
108,0 |
- |
4,252 |
- |
| Jack housing length |
e |
43,9 |
44,0 |
1,728 |
1,732 |
| Jack housing height |
f |
20,4 |
20,5 |
0,803 |
0,807 |
| Mounting bracket and 23mm barrel tightened |
g |
32,0 |
- |
1,260 |
- |
| Platform length |
h |
33,8 |
- |
1,331 |
- |
| Pickup sensor thickness |
i |
1,9 |
2,0 |
0,073 |
0,079 |
| Sensor to jack housing plug length |
j |
38,1
|
38,2 |
1,500 |
1,504 |
| Jack housing width |
k |
17,6 |
17,7 |
0,693 |
0,697 |
| Mounting bracket and 29mm barrel untightened |
l |
41,0 |
42,0 |
1,614 |
1,654 |
|
*KNA handmade pickups may vary slightly in size due to the nature of the building |
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