GLOCKENKLANG Bass Art Classic User manual

Bass Art Classic
Preamp
User Manual
Contents
Introduction
How to use
1. Input stage
2. Equalizer
3. Effects loop
. Volume control
5. Power stage
6. Mains connection
7. Line output
8. Balanced DI output
9. Parallel insert (mixable)
10. Footswitches
11. Serial insert
12. Tuner out
Technical Data
Warranty
GLOCKENKLANG
Eimterstr. 147
D-32049 Herford
Tel [phone]
Fax [phone]
http://www.glockenklang.de
e-mail: [e-mail]

Thank you for choosing the GLOCKENKLANG
Bass Art Classic Preamplifier. You have
purchased an exquisite piece of equipment,
which was designed after the most modern
technical aspects.
Attention!
Attention!Attention!
Attention!
To activate your additional 3 years warranty,
you should send in the enclosed warranty
card.
Please enter the serial number of your
amplifier and the date of purchase and
send it to :
Glockenklang
Eimterstrasse 1 7
D-320 9 Herford
Germany
This serves as a measure to ensure excellent
customer service in the
future.
For your safety
For your safetyFor your safety
For your safety
Please read the following instructions
carefully. These tips will ensure long and
troublefree operation of your new
GLOCKENKLANG product.
Operational restrictions
Operational restrictionsOperational restrictions
Operational restrictions
Do not operate the amplifier under the
following conditions:
• In direct sunlight
• In extremely dirty or dusty places
• In extremely humid or wet places
• Around heat emitting appliances
Caution: When rack mounting the amplifier,
Caution: When rack mounting the amplifier, Caution: When rack mounting the amplifier,
Caution: When rack mounting the amplifier,
make sure to leave adequate room for
make sure to leave adequate room for make sure to leave adequate room for
make sure to leave adequate room for
ventilatio
ventilatioventilatio
ventilation. he unit needs this ventilation
n. he unit needs this ventilation n. he unit needs this ventilation
n. he unit needs this ventilation
space to adequately exhaust it´s internally
space to adequately exhaust it´s internally space to adequately exhaust it´s internally
space to adequately exhaust it´s internally
generated heat.
generated heat.generated heat.
generated heat.
WARNING!
WARNING!WARNING!
WARNING!
O REDUCE HE RISC OF FIRE OR
O REDUCE HE RISC OF FIRE ORO REDUCE HE RISC OF FIRE OR
O REDUCE HE RISC OF FIRE OR
ELEC RIC SHOCK, DO NO EXPOSE
ELEC RIC SHOCK, DO NO EXPOSEELEC RIC SHOCK, DO NO EXPOSE
ELEC RIC SHOCK, DO NO EXPOSE
HIS EQUIPMEN O RAIN OR MOIS URE.
HIS EQUIPMEN O RAIN OR MOIS URE.HIS EQUIPMEN O RAIN OR MOIS URE.
HIS EQUIPMEN O RAIN OR MOIS URE.
Handling
HandlingHandling
Handling
Do not drop the amp. Do not use excessive
force when activating switches and dials.
Care
CareCare
Care
Use a soft, clean and dry cloth only to clean
the amplifier. Do not use aggressive
chemicals to clean the housing. Do not use
compressed air to clean the housing. You
may carefully vacuum the air intake and
exhaust areas from time to time to remove
loose dust accumulation.
Please, keep this User Manual for future
Please, keep this User Manual for future Please, keep this User Manual for future
Please, keep this User Manual for future
references
referencesreferences
references
General instructions
General instructionsGeneral instructions
General instructions
Your Bass Art Classic preamp´s special
features:
• 2 effect loops
"insert" is a serial loop
"effect" is a parallel loop with
blending control from 0% till 100% on the
front panel.
The insert is switched pre eq, the
effects loop is switched post eq/pre
volume control/pre DI out.
The effect loop is internally switachable –
with the dip-switch in off position, behind
the effect control pot – to an effect-
intensity from 0 till 50% with an equal
level of original signal, which gives you a
small rise of the whole level by adding
the effect level.
Caution:
Caution:Caution:
Caution:
Please ensure adequate ventilation when
rack mounting the Bass Art Classic
preamp.
Leave a minimum of 5 mm space below
and above the amplifier.
WARNING!
WARNING!WARNING!
WARNING!
O REDUCE HE RISC OF FIRE OR
O REDUCE HE RISC OF FIRE ORO REDUCE HE RISC OF FIRE OR
O REDUCE HE RISC OF FIRE OR
ELEC RIC SHOCK, DO NO EXPOSE
ELEC RIC SHOCK, DO NO EXPOSEELEC RIC SHOCK, DO NO EXPOSE
ELEC RIC SHOCK, DO NO EXPOSE
HIS EQUIPMEN O RAIN OR MOIS URE.
HIS EQUIPMEN O RAIN OR MOIS URE.HIS EQUIPMEN O RAIN OR MOIS URE.
HIS EQUIPMEN O RAIN OR MOIS URE.

1.1 Line Driver In XLR-Connector
Input for the optional instrument line driver. Is
connected to the switch-contact of the Input B
jack. Will be deaktivated by putting in an
instrument-cable into Input B jack.
1.2 Input A Jack
Normal instrument input
1.3 A/B Switch
Activates Input A or Input B, enabling switching of
two instruments.
1.4 Input B Jack
Instrument input for high level instruments.
Adjustable via Input B Trim knob.
1.5 Tune Switch (Mute-Function)
Mutes all outputs but the Tuner Out.
Can be activated by footswitch.
1.6 Trim Input B Control
Pre gain trim for Input B, you can adjust the level
between 0 dB and -20 dB.
1.7 Gain Control with Peak LED
Matches input signal to preamp. To adjust, turn
knob until the Peak LED above the control only
flickers at highest and loudest peaks. The level in
the Effect Loop is then adjusted to + dB and
the headroom to overdrive is 20 dB. For overdrive
function, give more gain. The Peak LED then lights
and flickers more, but that is ok.
2.1 Treble/Bass Eq with On Switch
Bass and Treble controls serve to fine tune your
sound or solve acoustical problems on stage.
They will be activated by the On Switch. The
frequencies are centered at 60 Hz and 12 KHz.
2.2 Mid Eq with On Switch
Low Mid and High Mid semiparametrical
equalizer. The „dB“-controls raise and dip the
frequencies, which are centered by the „KHz“-
controls.
3.1 Effect Control
Mixes the effects loop into the original signal from
0% ( original signal only) to 100% (effect only).
The effect loop is internally switachable – with the
dip-switch in off position, behind the effect
control pot – to an effect-intensity from 0 till 50%
with an equal level of original signal, which gives
you a small rise of the whole level by adding the
effect level.
3.2 Effect On Switch
Activates the Effect Loop ( Parallel Loop ). This
feature can also be activated by foot switch.
4.1 Volume Control
Serves as main volume control for the Line Out
jack and XLR-connector on the rear.
5.1 Power Switch
A/C Switch to turn on power to the unit. Power On
is indicated by a green LED.

6.1 A/C Connector with fuse
Connector for A/C cord. The fuse is located in the small
compartment below. A spare fuse is included in the
compartment. The fuse is rated at 0, A/slo for 230V
operation and 0,8A/slo for 117V operation.
7.1 Line Out connector XLR
This jack carries the pre-amplified signal post volume
control. It serves as a connection for a poweramp. The
signal is asymmetrical at Pin 2. With the optional
output-transformer the symmetrical signal is at pin 2 hot
and at pin 3 cold. Pin 1 is always at ground.
7.2 Line Out Jack
Asymmetrical preamp out, alternative to the XLR-
connector. Both outputs are parallel.
8.1 Ground Lift Switch
Separates Signal Ground from Chassis Ground to
eliminate hum and buzz, when connecting other A/C
connected gear.
8.2 DI Out XLR Connector
This is the output of the integrated DI Box. It is for
balanced connectivity to mixing consoles. The signal is
routed to this output pre-volume control for
independent stage volume adjustment possibilities.
Caution!
This output is electronically balanced. Do not ground
pin 3, when using unbalanced cables in this jack. Pin
3 is unused for unbalanced operation!
8.3 DI pre/post Switch
Chooses among the following DI modes:
pre: before eq and serial insert
post: post eq and serial/parallel insert
offers a choice between pure or processed bass
guitar signal
8.4 DI Level Control
Matches DI output with mixing console input
9.1 Loop Return Jack
Connect to the output of an effects processor, that is
supposed to be looped into the effects loop. Can be
used as a mix input (i.e. an additional preamp, the mix
ratio can be adjusted at the Effect control on the front.
9.2 Loop Send Jack
To be connected to an effects units input. The level is
+ dB
9.3 Basscut Frequency Control
Cuts the low frequencies of the send signal with
12db/octave, to suppress the influence of an effect like
reverb or flanger to the key-notes.
10.1 Footswitch Loop Jack
Serves as a connection for the loop function
footswitch. It has the same function as the loop button
on the amp front.
10.2 Footswitch une Jack
Serves as a connection for the mute function
footswitch. It has the same function as the mute button
on the amp front.
11.1 Insert Return Jack
Connect to the output of an effects unit for use in a
serial configuration.
11.2 Insert On Switch
Activates the insert function.
11.3 Insert Send Jack
The input of an effects unit for serial configuration (i.e.
equalizer or compressor). The signal level is + dB. The
signal is taken post gain, but pre eq.
12.1 uner Out Jack
Serves as a connection for a tuner. This output is always
active.