Hughes & Kettner 250BASS User Manual
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BASSBASE
250
BASS AMPLIFIER / COMBO AMPLIFIER
Hughes & Kettner Musical Instruments GmbH Magdeburgerstr.6 6690
Telefon
( 06851)2021
Telefax(06851)48
86
St.Wendel
Congratulations on your choice,
the Hughes
The BassBase 250 was designed by a group of musicians and technicians to
meet the needs of the professional bass player.
Superb tonal characteristics and sophisticated features define the Bassbase 250 as
a professional bass amplification system. Both the compact, easily transportable
combo and the elegant head versions of the Bassbase
thanks to sophisticated signal routing possibilities, in the studio.
The Basebass 250 is available as a combo or an amp head. The amplifiers are
identical in both versions, with the exception that the combo comes with a speaker.
Sound quality through tube technology.
The Bassbase 250’s preamp is constructed utilizing the classic ECC 83 tube. This
tube is responsible for a lively, dynamic bass tone through it’s innate compression
characteristics and carefully dosed upper frequency range. The basic tone of tube
technology is most convincing; from a dark warm jazz tone through to an articulate,
punchy rock sound, down to the high attack of funk, the
Carefully balanced tone controls with a parametric midrange.
The four tone controls enable you to quickly and efficiently dial in your own basic
tonal characteristics and allow for dramatic modifications to suit your needs. The
midrange of the musical spectrum is paramount to a good baas sound therefore,
the
Bassbase
250’s midrange can be adjusted parametrically.
&
Kettner
BassBase
250
are at home on stage and,
Bassbase
250!
250 can do it all.
250 Watts of dynamic power with
Bass amplification demands a great deal of power. The explosive dynamics created
when you play with a heavy attack drive conventional bass amps to the limits of
clean sound reproduction. Annoying distortion, apart from endangering the speakers,
restricts the output potential. The Bassbase 250’s newly developed "DYNACLIP"
circuitry suppresses the distortion created through dynamic peaks without limiting
the dynamic spectrum.
1
"DynaClip".
Specially developed
Two speakers developed specifically for the Bassbase 250 ensure a powerful,
percussive reproduction of the amp’s output, replete with precise transient response.
10”
speakers in the combo version.
Additional tweeter for upper frequency response.
An additional tweeter provides transparent highs and accurate harmonic
reproduction.
Ergonomic, back lit front panel controls.
The front panel controls are- arranged for maximum accessibility and simplicity.
Potentiometers, function permitting, are center notched for a “memory effect”.
Back lighting provides for visibility on even the darkest stages.
The
Bassbase
comfortably create your personal sound. This manual will give you some insights
into the
that.
250 was engineered to provide you with the opportunity to
Bassbase
and familiarize you with it’s features, enabling you to do just
Have fun with your
Bassbase
2501
2
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
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 recommended when switching the power off, changing instruments, etc.
(MUTE
(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
3
&
Kettner
BASSBASE
250.
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