EBS Classic session 120 User manual

E-MAIL:[email protected]
www.ebssweden.com
August 2011
DESIGNED AND DEVELOPED BY EBS SWEDEN AB
GRINDSTUVÄGEN 44-46, SE-167 33 BROMMA,SWEDEN
[phone], FAX :[phone]
USERS MANUAL

INTRODUCTION •GETTING STARTED TECHNICAL SPECIFICATIONS
2 7
INPUT: Input Impedance 2 Mohms // 100 pF
GAIN: Gain Range min/max -∞/ +28 dB
Gain Peak LED +10 dBv
Frequency Response +0 / -3 dB 35 - 20k Hz
CHARACTER: Filter: Type Shelving High/Low Pass
Gain: +6 dB @ 75 Hz
-2.5 dB @ 800 Hz
+3 dB @ 9 kHz
FILTER SECTION: Bass Filter: Type 12 dB/oct. Shelving
Gain +/- 15 dB @ 100 Hz
Middle: Gain Range +/- 12 dB
Freq. Range 150 - 3300 Hz
Q 1.0
Treble Filter: Type Shelving
Gain Range +/- 15 dB @ 10 kHz
AUX INPUT: Type: Two RCA jacks (stereo)
Impedance: 10 kohms unbalanced
Sensitivity -10 dBv
Aux Gain max 15 dB
BALANCED OUTPUT: Output Level nominal - 10 dBv
XLR Connections 1-GND, 2-Hot, 3-Cold
Options GND Lift
PHONES OUT: Recommended Impedance 32 - 200 ohms
POWER AMP: Continuous Output Power 120 W RMS
CABINET: Impedance 8 ohms
Frequency Response +0/-3 dB 45 Hz – 18.000 Hz
Volume 35 liters
AUXILIARY INFO: Power Requirements max 200 W
Mains Protection: T1A Fuse (230V)
T2A Fuse (100/120V)
Outer Dimensions (WxHxD): 435 x 455 x 402 mm
17.1 x 17.9 x 15.8"
Weight: 21 kg ( 47 lbs.)
Specifications are subject to change without notice!
BUILDING THE SOUND...
Your EBS Session120 features an en-
hanced tone shaping circuit that will enable
you to create a variety of bass sounds.
6. The filters are basically the boost/cut design.
This means that the level controls marked
with + and - signs, either boost or cuts the
selected frequency band.
7. Gradually increase or decrease the level and
vary the frequency of the various filter sec-
tions. Notice how the sound is affected.
8. Repeat as above by trying out the preshape
filter Character.
9. If you have a CD player or other sound
source, you may connect this to the Aux In
input and control the amount of volume with
the associated knob.
This was a brief tutorial of EBS
Session120. As you go on further in this
manual, you will learn how to use and util-
ize all of the useful features that the EBS
Session120 offers you.
GOOD LUCK!
The EBS Session120 is a solid-state
amplifier combo, extremely easy to dial-in.
The Session120 is a downscaled design
from the Classic450 head to perform
extremely well in all styles and situations.
The sound is a combination of vintage bass
sound and the transparent ’EBS’ sound that
let your playing style and the character of
your instrument speak. Versatility is
provided by a carefully designed EQ with a
wide range of possible settings. By using
the built in auxiliary input in stereo, you can
use this combo for practicing at home with
headphones. These brief tutorials will help
you to become acquainted with some of the
features of the EBS Session120 combo.
GETTING STARTED...
1. Carefully unpack the bass combo.
2. Check that the Volume and Gain controls are
set to zero, fully counter clockwise. Set all
the other controls to mid position and make
sure that the switches marked Character and
Enh.Filter are in their outer position. Now
the EBS Session120s' settings are "zeroed"
and ready to be personalized.
3. Power up the combo and plug in your bass.
4. While plucking the strings as hard as you
would during your hardest playing, adjust the
GAIN knob until the PEAK led starts to flash
only at highest peaks.
5. Move over to the VOLUME knob and adjust
for the desired output volume.

BLOCK DIAGRAM PANEL CONTROLS AND FUNCTIONS
6 3
INPUT - A low noise, high impedance
instrument input for all types of
instruments, active and passive.
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CHARACTER - The Session120 provides
a preshaping filter, character, which
operates independently from the filter
section. This gives the user the opportunity
to preshape the sound before the final
processing with the filters.
When pressed to its inner position, a boost
is achieved in both the bass and treble
ranges, while the midrange is being slightly
cut.
__________________________________
GAIN - Control to adjust the instruments'
signal strength to the right operating level in
the Session120.
For optimum basic signal level, turn up the
GAIN knob until the PEAK led starts
flashing from the strongest signal from the
instrument.
Note: A correctly set GAIN is vital for the
signal processing to work properly in the
Session120.
AUX IN - The two RCA inputs gives you
the option of mixing in an external source
such as CD player or similar to the
Session120. Set the desired mix level with
the associated knob.
If you only have a mono source connect
to the input marked mono. Both channels
will only be monitored when using head-
phones.
__________________________________
VOLUME - The VOLUME knob controls
all volume in the unit, controlling the
poweramp/speakers and headphones
output. The balanced output (XLR) is not
effected by the setting of this knob.
__________________________________
HEADPHONES – Connect your favorite
headphones here. By connecting the head-
phones the speakers will automatically be
muted.
__________________________________
BALANCED OUTPUT - Is a high
quality balanced output that functions as a
line box for connecting to PA mixing
consoles or to studio or broadcast
recording units.
Lifting ground is a great aid in many
occasions. When required, set the Gnd Lift
switch to inner position to disconnect the
ground from the output.
__________________________________
POWER – Powers the unit on or off.

FILTERS POWER AMP •CABINET
4 5
FILTERS - The filter section
contains two versatile filters:
BASS is a 'shelving' type
12dB/oct slope phase
compensated bass filter with a
wide gain range.
TREBLE is a 'shelving' type
filter controlling the higher
mids and treble registers,
giving presence and ambiance
to the sound.
MIDDLE FILTER – The middle
filter controls precisely the
midrange frequencies ranging
from 150 Hz to 3.3kHz. Smooth,
yet defined bandwidth allows for
good definition throughout the
entire sweep.
FRONT PANEL DETAILS:
POWERAMP - The internal poweramp is
of highly integrated design giving natural
sound reproduction and output with ex-
ceptional clarity.
The incorporated soft clip system pro-
vides tube-alike distortion characteristics,
protects the power amp from saturation
and increases its output performance and
sound quality.
IMPORTANT: Make sure not to cover
the ventilation holes on the rear of the
combo.
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CABINET - The cabinet is formed by
one 12" together with a piezo tweeter for
fullrange operation. In addition, the
cabinet is tuned for extended low
frequency response. It is recommended
that the combo is set to straight angle for
best bass response.
,
EBS will not take responsibility for
eventual hearing damages caused by
the powerful Session120.
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