SHADOW ROCKABILLY PRO
Owner’s Manual
ENGLISH
Page 4/6
Adjustments and Operation
Bridge Channel
The sound of the bridge channel can be altered with these controls:
GAIN Control ⑦:
Adjusts the basic sensitivity of the bridge pickup. If you notice a distorted sound (clipping)
the signal is probably too high. In this case reduce the amount of gain.
BASS ②, MID ④, PRESENCE ⑥ Control:
Adjust the 3 frequency ranges. There is normally no need to use
extreme settings because you will have already a perfect double bass sound in all 3 mid positions.
SUBSONIC FILTER ON/OFF Switch ③:
To prevent ultra low feedback you should switch the filter on. It
reduces deep frequencies below 30 Hz. This prevents handling noise caused by moving the instrument
during a typical rockabilly live act. (Climbing, running, etc.)
PRE-SHAPE On/Off Switch ⑤:
This adds a predefined amount of bass and treble frequencies. This is a
perfect predefined rockabilly sound.
VOLUME Control ①:
On the front side right to the tuner display you will find the volume control for the
bridge pickup. This controls the overall volume of this channel. A good value can be reached by setting it to
2 o’clock to 3 o’clock position.
Fingerboard Channel
This feature is unique on this preamplifier. Depending on the sound of the strings and of course your taste of slap
sound you can set several controls to reach the perfect sound:
GAIN Control ⑰:
This adjusts the basic sensitivity of the fingerboard pickup. Turn to the right for a good
and clear signal. If it starts to distort turn the control to the left until the distortion stops.
LOW CUT Control ⑭:
This adjusts the amount of low frequencies of the slap sound. Set it up for a loud clap
to a soft slap.
TREBLE Control ⑯:
This controls the amount of high frequencies of the slap sound.
4/8 KHz Selector ⑮:
This switch selects the roll off frequency of the treble control ⑯. In-position = 8 kHz,
out-position = 4 kHz.
VOLUME Control ⑬:
On the left side of the front you will have the master volume controls for both
pickups. Left side: fingerboard pickup and right side: bridge pickup.
Our suggestion: Set both controls to zero. First setup the volume for the bridge pickup, than add the volume
for the fingerboard pickup (slap sound)!
Controls for both channels
PHASE Selector ⑫:
It is possible to switch the actual phase by 180°. In several cases this will prevent
feedback. This depends on the amount of overall volume, the position between your double bass and the
amplifier and of the ambience where you play.
