Installation manual

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• If the material of the saddle is bone.
Bone is a natural material and the density and grain may not be
consistent. This may cause inconsistencies in the way the sound is
distributed making some strings louder or softer than others. We
highly recommend a manmade material for the saddle.
10.6 If the balance problem does not disappear on its own,
do the following:
• Check there is no debris in the saddle slot.
• Check the bottoms of both the saddle slot and saddle. They
should be flat and straight. It is common that the guitar top
“lives” and moves and because of this the saddle slot could
become curved, not straight. This may happen especially during
transport or by change of season when the humidity changes.
By making the saddle flexible, as in picture, these problems can
be greatly avoided.
• Check saddle is not loose in its slot. The saddle should be so
tight that you cannot pull it away with your fingers.
• Check string angles behind the saddle. They should be about
the same behind every string. If the angle is too low, the string will
not put enough pressure on the transducer and that may cause
balance problems - usually higher output from the corresponding
string. To deepen the angle, you can, for example, file a wedge-
shaped groove on the bridge pinhole so that the string will have
deeper angle behind the saddle (see the next picture).
• On some instruments the outer most strings are too close to the
edge of the saddle, causing balance problems to these strings.
It may happen that the E string at the end of the UST does not
come as loud as other strings. In this case, make another, shallow
hole (not all the way through) at that end of the saddle cavity
and move the pickup so the tip of the UST goes in the hole. If
nothing else helps, you should machine the saddle slot longer
and use a new longer saddle.
• Balance problems may also occur with some string sets, for ex-
ample with classical guitars the G-string may cause problems.
10.7 If all things mentioned above are correct, and there still
is a balance problem, you should try the following tricks:
• The easiest way is to install a spacer, made of soft wood, under-
neath the saddle or underneath the UST. The proper thickness
is 0.5 - 0.8 mm (.02” - .03”). This will cure imbalance problems
effectively.
• A very efficient way is to make the saddle more flexible by modi-
fying it, for example see picture below. Even more efficient it is to
cut the saddle into six separate pieces, or to cut it almost through
between the strings but leave just a small portion on the bottom
side of the saddle, i.e. cut it from the bottom towards the top.
• Most of the balance problems are due the fact that the guitar
top lives. By making the saddle flexible, these problems can be
greatly avoided.
• If anything else does not help, you can try to add one or two
layers of ordinary letter paper under the saddle, underneath
the quieter strings. This will cause a better mechanical contact
between the saddle and the UST and thus increase the volume.
If the volume decreases when adding the paper, the balance
problem is due to unequal pressure distribution, not bad me-
chanical contact. In this case, add the paper underneath the
louder strings. Try this as the last choice because it is very time
consuming and not so efficient.
10.8 Other problems
If you notice any other problems, please contact the dealer,
distributor or manufacturer, for help.
11. CUSTOMER FEEDBACK
If you have any comments, positive or negative, about any B-Band
product, please do not hesitate to contact B-Band.
12. A5T SPECIFICATIONS
S/N ratio: Greater than –90 dB
Distortion: 0.05 %
Frequency response: 50 Hz – 40 kHz
Low-cut slope: -6 dB/octave
Input channel voltage gain: +30 dB
Input impedance: 100 Mohm ||< 20 pF
Output impedance: < 3.5 kohm
Bass control range: ± 12 dB @ 70 Hz (± 3 dB @ 300 Hz)