6
THE FRONT PANEL:
1. INPUT: Connect an active or passive
instrument here by means of a shield-
ed signal cable terminated with a 1/4”
connector.
2. GAIN: Use this control to adjust the
input signal level for the best signal to
noise ratio without distortion.
3. CONTOUR: This control is only
active when the Contour Active switch
(#4) is depressed. Use this control to
vary the position of the contour effect.
This control gives you a wide variety of
tone variations, from a studio “V”-
shaped tone to a more “live,” more
present sound.
4. CONTOUR ACTIVE: This switch,
when depressed, activates the
Contour control (#3).
5. LOW: Use this control to adjust the
low frequency level of the amplifier.
This control provides a 19dB range of
cut or boost at 60Hz.
6. LOW MID: Use this control to adjust
the lower-midrange frequency level of
the amplifier. This control provides a
25dB range of cut or boost at 200Hz.
7. HIGH MID: Use this control to
adjust the upper-midrange frequency
level of the amplifier. This control pro-
vides a 16dB range of cut or boost at
1kHz.
8. HIGH: Use this control to adjust the
high frequency level of the amplifier.
This control provides a 28dB range of
cut or boost at 10kHz.
TXB50
ACTIVE
EQUALIZATIONINPUT
GAININPUT CONTOUR LOW LOW HIGH
MID MID HIGH
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