EBS Session Bass Combos User's Manual

USERS MANUAL
DESIGNED AND DEVELOPED BY EBS SWEDEN AB
GRINDSTUVÄGEN 44-46, SE-167 33 BROMMA, SWEDEN
+46-8-735 00 10, FAX : +46-8-735 00 05
E-MAIL: [email protected]
WEB: www.ebssweden.com
June 2009
INTRODUCTION • GETTING STARTED
TECHNICAL SPECIFICATIONS
BUILDING THE SOUND...
The EBS Session60 is a solid-state
amplifier combo, extremely easy to dial-in.
The Session60 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 Session60 combo.
Your EBS Session60 features an enhanced tone shaping circuit that will enable
you to create a variety of bass sounds.
INPUT:
Input Impedance
GAIN:
Gain Range
Gain Peak LED
Frequency Response
min/max
CHARACTER:
Filter:
Gain:
Type
Shelving High/Low Pass
+6 dB @ 75 Hz
-2.5 dB @ 800 Hz
+3 dB @ 9 kHz
FILTER SECTION:
Bass Filter:
Type
Gain
Type
Gain Range
Enhanced Filter:
12 dB/oct. Shelving
+/- 15 dB @ 100 Hz
Shelving
+/- 15 dB @ 10 kHz
+/- 10dB @800 Hz
Type:
Impedance:
Sensitivity
Aux Gain
Two RCA jacks (stereo)
10 kohms unbalanced
-10 dBv
15 dB
6. The filters are basically the boost/cut design.
2 Mohms // 100 pF
+0 / -3 dB
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
Treble Filter:
vary the frequency of the various filter sections. Notice how the sound is affected.
8. Repeat as above by trying out the preshape
AUX INPUT:
filter Character.
9. Now, engage the enhanced filter by pressing
the switch marked Enh.Filter, and check how
the sound is effected by turning the Treble
knob.
GETTING STARTED...
1. Carefully unpack the bass combo.
10. If you have a CD player or other sound
2. Check that the Volume and Gain controls are
source, you may connect this to the Aux In
input and control the amount of volume with
the associated knob.
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 Session60s' settings are "zeroed"
and ready to be personalized.
11. For further reference, check out the sample
sound setting on the last page of this manual.
max
BALANCED OUTPUT: Output Level
XLR Connections
Options
nominal
-∞/ +28 dB
+10 dBv
35 - 20k Hz
- 10 dBv
1-GND, 2-Hot, 3-Cold
GND Lift
PHONES OUT:
Recommended Impedance
32 - 200 ohms
POWER AMP:
Continuous Output Power
60 W RMS
CABINET:
Impedance
Frequency Response
Volume
+0/-3 dB
8 ohms
60 Hz – 18.000 Hz
20 liters
3. Power up the combo and plug in your bass.
AUXILIARY INFO:
4. While plucking the strings as hard as you
This was a brief tutorial of EBS Session60.
As you go on further in this manual, you
will learn how to use and utilize all of the
useful features that the EBS Session60 offers 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
Power Requirements
Mains Protection:
max
Outer Dimensions (WxHxD):
Weight:
for the desired output volume.
Specifications are subject to change without notice!
GOOD LUCK!
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100 W
T1A Fuse (230V)
T2A Fuse (100/120V)
376 x 395 x 343 mm
14.8 x 15.6 x 13.5"
16 kg ( 36 lbs.)
BLOCK DIAGRAM
PANEL CONTROLS AND FUNCTIONS
INPUT - A low noise, high impedance
instrument input for all types of
instruments, active and passive.
___________________________________
AUX IN - The two RCA inputs gives you
the option of mixing in an external source
such as CD player or similar to the
Session60. 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 headphones.
__________________________________
CHARACTER - The Session60 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.
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 headphones 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.
__________________________________
__________________________________
GAIN - Control to adjust the instruments'
signal strength to the right operating level in
the Session60.
For optimum basic signal level, turn up the
GAIN knob until the PEAK led starts
flashing from the strongest signal from the
instrument.
POWER – Powers the unit on or off.
Note: A correctly set GAIN is vital for the
signal processing to work properly in the
Session60.
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FILTERS
POWER AMP • CABINET
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.
POWERAMP - The internal poweramp is
of highly integrated design giving natural
sound reproduction and output with exceptional clarity.
The incorporated soft clip system provides tube-alike distortion characteristics,
protects the power amp from saturation
and increases its output performance and
sound quality.
CABINET - The cabinet is formed by
one 10" 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.
IMPORTANT: Make sure not to cover
the ventilation holes on the rear of the
combo.
EBS will not take responsibility for
eventual hearing damages caused by
the powerful Session60.
__________________________________
__________________________________
,
FRONT PANEL DETAILS:
ENHANCED FILTER MODE –
The enhanced mode switch
allows the Treble control to have
effect on the midrange in this
filter. When boosting the treble,
the middles will be cut and vice
versa.
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