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FRONT PANEL
CONTROL
FEATURES
(1) INPUTS:
The Bassbase has two input jacks with different input sensitivities to accommodate
basses with passive as well as active electronics. LO INPUT is designed for active
basses with active pickups. HI INPUT has a higher sensitivity rating for the more
traditional passive pickups.
(2) TUNER:
Directly above the two input jacks you will find the TUNER jack. This jack is
suitable for sending a signal to an external tuning device. Connect the TUNER jack
to the external tuning device’s INPUT jack.
(3)
MUTE:
The MUTE switch silences the Bassbase. When the MUTE is activated
(MUTE
LED illuminates), no signal is sent to the power amp/ Line out/ PA out; only the
TUNER jack receives the signal.
The MUTE function is especially convenient for silent tuning between songs or sets
when it is less than desirable to have audience participation. MUTE is also recom-
mended when switching the power off, changing instruments, etc.
(4) GAIN:
The Bassbase’s preamp is constructed with tube circuitry, lending the amp a
dynamic, warm sound typical of classic tube technology. The GAIN control sets
the preamp’s input sensitivity and fine-tunes it to the instrument’s output.
Higher GAIN settings add a nuance of overdrive and harmonic distortion.
The intensity of the compression effect inherent in tube amplification is also
adjusted with the GAIN control.
PLEASE NOTE: Tubes need to reach a minimum operating temperature; a few
seconds delay between turning the power on and reaching operational readiness are
the norm with the Hughes
&
Kettner
BASSBASE
250.